From 0e2d08a036d6e85ac0528407f1a3a4be4e80ac89 Mon Sep 17 00:00:00 2001 From: Alexander Golubev Date: Fri, 3 Apr 2026 22:07:01 +0300 Subject: q => tq rebranding: rename qdnd_x11.cpp Also fix a couple of comments that were referring to it by its older name: qt_xdnd.cpp. Signed-off-by: Alexander Golubev --- src/kernel/qdnd_x11.cpp | 1859 -------------------------------------- src/kernel/qt_kernel.pri | 2 +- src/kernel/tqapplication_x11.cpp | 2 +- src/kernel/tqclipboard_x11.cpp | 4 +- src/kernel/tqdnd_x11.cpp | 1859 ++++++++++++++++++++++++++++++++++++++ 5 files changed, 1863 insertions(+), 1863 deletions(-) delete mode 100644 src/kernel/qdnd_x11.cpp create mode 100644 src/kernel/tqdnd_x11.cpp diff --git a/src/kernel/qdnd_x11.cpp b/src/kernel/qdnd_x11.cpp deleted file mode 100644 index 4f6b54ba7..000000000 --- a/src/kernel/qdnd_x11.cpp +++ /dev/null @@ -1,1859 +0,0 @@ -/**************************************************************************** -** -** XDND implementation for TQt. See http://www.cco.caltech.edu/~jafl/xdnd/ -** -** Created : 980320 -** -** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved. -** -** This file is part of the kernel module of the TQt GUI Toolkit. -** -** This file may be used under the terms of the GNU General -** Public License versions 2.0 or 3.0 as published by the Free -** Software Foundation and appearing in the files LICENSE.GPL2 -** and LICENSE.GPL3 included in the packaging of this file. -** Alternatively you may (at your option) use any later version -** of the GNU General Public License if such license has been -** publicly approved by Trolltech ASA (or its successors, if any) -** and the KDE Free TQt Foundation. -** -** Please review the following information to ensure GNU General -** Public Licensing requirements will be met: -** http://trolltech.com/products/qt/licenses/licensing/opensource/. -** If you are unsure which license is appropriate for your use, please -** review the following information: -** http://trolltech.com/products/qt/licenses/licensing/licensingoverview -** or contact the sales department at sales@trolltech.com. -** -** This file may be used under the terms of the Q Public License as -** defined by Trolltech ASA and appearing in the file LICENSE.TQPL -** included in the packaging of this file. Licensees holding valid TQt -** Commercial licenses may use this file in accordance with the TQt -** Commercial License Agreement provided with the Software. -** -** This file is provided "AS IS" with NO WARRANTY OF ANY KIND, -** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted -** herein. -** -**********************************************************************/ - -#include "qplatformdefs.h" - -#include "tqapplication.h" - -#ifndef TQT_NO_DRAGANDDROP - -#include "tqwidget.h" -#include "tqintdict.h" -#include "tqdatetime.h" -#include "tqdict.h" -#include "tqguardedptr.h" -#include "tqdragobject.h" -#include "tqobjectlist.h" -#include "tqcursor.h" -#include "tqbitmap.h" -#include "tqpainter.h" - -#include "tqt_x11_p.h" - -// conflict resolution - -const int XKeyPress = KeyPress; -const int XKeyRelease = KeyRelease; -#undef KeyPress -#undef KeyRelease - -// this stuff is copied from qapp_x11.cpp - -extern void qt_x11_intern_atom( const char *, Atom * ); - -#if defined(Q_C_CALLBACKS) -extern "C" { -#endif - -extern void qt_ignore_badwindow(); -extern bool qt_badwindow(); -extern void tqt_enter_modal( TQWidget *widget ); -extern void tqt_leave_modal( TQWidget *widget ); - -#if defined(Q_C_CALLBACKS) -} -#endif - -extern Window qt_x11_findClientWindow( Window, Atom, bool ); -extern Atom tqt_wm_state; -extern Time tqt_x_time; -extern Time tqt_x_user_time; - -// this stuff is copied from qclb_x11.cpp - -extern bool qt_xclb_wait_for_event( Display *dpy, Window win, int type, - XEvent *event, int timeout ); -extern bool qt_xclb_read_property( Display *dpy, Window win, Atom property, - bool deleteProperty, - TQByteArray *buffer, int *size, Atom *type, - int *format, bool nullterm ); -extern TQByteArray qt_xclb_read_incremental_property( Display *dpy, Window win, - Atom property, - int nbytes, bool nullterm ); -// and all this stuff is copied -into- qapp_x11.cpp - -void qt_xdnd_setup(); -void qt_handle_xdnd_enter( TQWidget *, const XEvent *, bool ); -void qt_handle_xdnd_position( TQWidget *, const XEvent *, bool ); -void qt_handle_xdnd_status( TQWidget *, const XEvent *, bool ); -void qt_handle_xdnd_leave( TQWidget *, const XEvent *, bool ); -void qt_handle_xdnd_drop( TQWidget *, const XEvent *, bool ); -void qt_handle_xdnd_finished( TQWidget *, const XEvent *, bool ); -void qt_xdnd_handle_selection_request( const XSelectionRequestEvent * ); -bool qt_xdnd_handle_badwindow(); -// client messages -Atom qt_xdnd_enter; -Atom qt_xdnd_position; -Atom qt_xdnd_status; -Atom qt_xdnd_leave; -Atom qt_xdnd_drop; -Atom qt_xdnd_finished; -Atom qt_xdnd_type_list; -const int qt_xdnd_version = 4; - -extern int qt_x11_translateButtonState( int s ); - -// Actions -// -// The Xdnd spec allows for user-defined actions. This could be implemented -// with a registration process in TQt. WE SHOULD do that later. -// -Atom qt_xdnd_action_copy; -Atom qt_xdnd_action_link; -Atom qt_xdnd_action_move; -Atom qt_xdnd_action_private; -static -TQDropEvent::Action xdndaction_to_qtaction(Atom atom) -{ - if ( atom == qt_xdnd_action_copy || atom == 0 ) - return TQDropEvent::Copy; - if ( atom == qt_xdnd_action_link ) - return TQDropEvent::Link; - if ( atom == qt_xdnd_action_move ) - return TQDropEvent::Move; - return TQDropEvent::Private; -} -static -int qtaction_to_xdndaction(TQDropEvent::Action a) -{ - switch ( a ) { - case TQDropEvent::Copy: - return qt_xdnd_action_copy; - case TQDropEvent::Link: - return qt_xdnd_action_link; - case TQDropEvent::Move: - return qt_xdnd_action_move; - case TQDropEvent::Private: - return qt_xdnd_action_private; - default: - return qt_xdnd_action_copy; - } -} - -// clean up the stuff used. -static void qt_xdnd_cleanup(); - -static void qt_xdnd_send_leave(); - -// XDND selection -Atom qt_xdnd_selection; -// other selection -static Atom qt_selection_property; -// INCR -static Atom qt_incr_atom; - -// properties for XDND drop sites -Atom qt_xdnd_aware; -Atom qt_xdnd_proxy; - -// real variables: -// xid of current drag source -static Atom qt_xdnd_dragsource_xid = 0; - -// the types in this drop. 100 is no good, but at least it's big. -const int qt_xdnd_max_type = 100; -static Atom qt_xdnd_types[qt_xdnd_max_type]; - -static TQIntDict * qt_xdnd_drag_types = 0; -static TQDict * qt_xdnd_atom_numbers = 0; - -// timer used when target wants "continuous" move messages (eg. scroll) -static int heartbeat = -1; -// rectangle in which the answer will be the same -static TQRect qt_xdnd_source_sameanswer; -//static TQRect qt_xdnd_target_sameanswer; -static bool qt_xdnd_target_answerwas; -// top-level window we sent position to last. -static Window qt_xdnd_current_target; -// window to send events to (always valid if qt_xdnd_current_target) -static Window qt_xdnd_current_proxy_target; -// widget we forwarded position to last, and local position -static TQGuardedPtr qt_xdnd_current_widget; -static TQPoint qt_xdnd_current_position; -// time of this drop, as type Atom to save on casts -static Atom qt_xdnd_source_current_time; -// timestamp from the XdndPosition and XdndDrop -static Time qt_xdnd_target_current_time; -// screen number containing the pointer... -1 means default -static int qt_xdnd_current_screen = -1; -// state of dragging... true if dragging, false if not -bool qt_xdnd_dragging = false; -// need to check state of keyboard modifiers -static bool need_modifiers_check = false; - -// dict of payload data, sorted by type atom -static TQIntDict * qt_xdnd_target_data = 0; - -// first drag object, or 0 -static TQDragObject * qt_xdnd_source_object = 0; - -// Motif dnd -extern void qt_motifdnd_enable( TQWidget *, bool ); -extern TQByteArray qt_motifdnd_obtain_data( const char *format ); -extern const char *qt_motifdnd_format( int n ); - -bool qt_motifdnd_active = false; -static bool dndCancelled = false; - -// Shift/Ctrl handling, and final drop status -static TQDragObject::DragMode drag_mode; -static TQDropEvent::Action global_requested_action = TQDropEvent::Copy; -static TQDropEvent::Action global_accepted_action = TQDropEvent::Copy; - -// for embedding only -static TQWidget* current_embedding_widget = 0; -static XEvent last_enter_event; - -// cursors -static TQCursor *noDropCursor = 0; -static TQCursor *moveCursor = 0; -static TQCursor *copyCursor = 0; -static TQCursor *linkCursor = 0; - -static TQPixmap *defaultPm = 0; - -static const int default_pm_hotx = -2; -static const int default_pm_hoty = -16; -static const char* const default_pm[] = { -"13 9 3 1", -". c None", -" c #000000", -"X c #FFFFFF", -"X X X X X X X", -" X X X X X X ", -"X ......... X", -" X.........X ", -"X ......... X", -" X.........X ", -"X ......... X", -" X X X X X X ", -"X X X X X X X" -}; - -class TQShapedPixmapWidget : public TQWidget { - -public: - TQShapedPixmapWidget(int screen = -1) : - TQWidget(TQApplication::desktop()->screen( screen ), - 0, WStyle_Customize | WStyle_Tool | WStyle_NoBorder | WX11BypassWM ), oldpmser( 0 ), oldbmser( 0 ) - { - x11SetWindowType( X11WindowTypeDND ); - } - - void setPixmap(TQPixmap pm, TQPoint hot) - { - int bmser = pm.mask() ? pm.mask()->serialNumber() : 0; - if( oldpmser == pm.serialNumber() && oldbmser == bmser - && oldhot == hot ) - return; - oldpmser = pm.serialNumber(); - oldbmser = bmser; - oldhot = hot; - bool hotspot_in = !(hot.x() < 0 || hot.y() < 0 || hot.x() >= pm.width() || hot.y() >= pm.height()); -// if the pixmap has hotspot in its area, make a "hole" in it at that position -// this will allow XTranslateCoordinates() to find directly the window below the cursor instead -// of finding this pixmap, and therefore there won't be needed any (slow) search for the window -// using findRealWindow() - if( hotspot_in ) { - TQBitmap mask = pm.mask() ? *pm.mask() : TQBitmap( pm.width(), pm.height()); - if( !pm.mask()) - mask.fill( TQt::color1 ); - TQPainter p( &mask ); - p.setPen( TQt::color0 ); - p.drawPoint( hot.x(), hot.y()); - p.end(); - pm.setMask( mask ); - setMask( mask ); - } else if ( pm.mask() ) { - setMask( *pm.mask() ); - } else { - clearMask(); - } - resize(pm.width(),pm.height()); - setErasePixmap(pm); - erase(); - } -private: - int oldpmser; - int oldbmser; - TQPoint oldhot; -}; - -static TQShapedPixmapWidget * qt_xdnd_deco = 0; - -static TQWidget* desktop_proxy = 0; - -class TQExtraWidget : public TQWidget -{ -public: - TQWExtra* extraData() { return TQWidget::extraData(); } - TQTLWExtra* topData() { return TQWidget::topData(); } -}; - - -static bool qt_xdnd_enable( TQWidget* w, bool on ) -{ - if ( on ) { - TQWidget * xdnd_widget = 0; - if ( w->isDesktop() ) { - if ( desktop_proxy ) // *WE* already have one. - return false; - - // As per Xdnd4, use XdndProxy - XGrabServer( w->x11Display() ); - Atom type = None; - int f; - unsigned long n, a; - WId *proxy_id_ptr; - XGetWindowProperty( w->x11Display(), w->winId(), - qt_xdnd_proxy, 0, 1, False, - XA_WINDOW, &type, &f,&n,&a,(uchar**)&proxy_id_ptr ); - WId proxy_id = 0; - if ( type == XA_WINDOW && proxy_id_ptr ) { - proxy_id = *proxy_id_ptr; - XFree(proxy_id_ptr); - proxy_id_ptr = 0; - // Already exists. Real? - qt_ignore_badwindow(); - XGetWindowProperty( w->x11Display(), proxy_id, - qt_xdnd_proxy, 0, 1, False, - XA_WINDOW, &type, &f,&n,&a,(uchar**)&proxy_id_ptr ); - if ( qt_badwindow() || type != XA_WINDOW || !proxy_id_ptr || *proxy_id_ptr != proxy_id ) { - // Bogus - we will overwrite. - proxy_id = 0; - } - } - if ( proxy_id_ptr ) - XFree(proxy_id_ptr); - - if ( !proxy_id ) { - xdnd_widget = desktop_proxy = new TQWidget; - proxy_id = desktop_proxy->winId(); - XChangeProperty ( w->x11Display(), - w->winId(), qt_xdnd_proxy, - XA_WINDOW, 32, PropModeReplace, - (unsigned char *)&proxy_id, 1 ); - XChangeProperty ( w->x11Display(), - proxy_id, qt_xdnd_proxy, - XA_WINDOW, 32, PropModeReplace, - (unsigned char *)&proxy_id, 1 ); - } - - XUngrabServer( w->x11Display() ); - } else { - xdnd_widget = w->topLevelWidget(); - } - if ( xdnd_widget ) { - Atom atm = (Atom)qt_xdnd_version; - XChangeProperty ( xdnd_widget->x11Display(), xdnd_widget->winId(), - qt_xdnd_aware, XA_ATOM, 32, PropModeReplace, - (unsigned char *)&atm, 1 ); - return true; - } else { - return false; - } - } else { - if ( w->isDesktop() ) { - XDeleteProperty( w->x11Display(), w->winId(), - qt_xdnd_proxy ); - delete desktop_proxy; - desktop_proxy = 0; - } - return true; - } -} - -const char* qt_xdnd_atom_to_str( Atom a ) -{ - if ( !a ) return 0; - - if ( a == XA_STRING ) - return "text/plain"; // some Xdnd clients are dumb - - if ( !qt_xdnd_drag_types ) { - qt_xdnd_drag_types = new TQIntDict( 17 ); - qt_xdnd_drag_types->setAutoDelete( true ); - } - TQCString* result; - if ( !(result=qt_xdnd_drag_types->find( a )) ) { - const char* mimeType = XGetAtomName( TQPaintDevice::x11AppDisplay(), a ); - if ( !mimeType ) - return 0; // only happens on protocol error - result = new TQCString( mimeType ); - qt_xdnd_drag_types->insert( (long)a, result ); - XFree((void*)mimeType); - } - return *result; -} - -Atom* qt_xdnd_str_to_atom( const char *mimeType ) -{ - if ( !mimeType || !*mimeType ) - return 0; - if ( !qt_xdnd_atom_numbers ) { - qt_xdnd_atom_numbers = new TQDict( 17 ); - qt_xdnd_atom_numbers->setAutoDelete( true ); - } - - Atom * result; - if ( (result = qt_xdnd_atom_numbers->find( mimeType )) ) - return result; - - result = new Atom; - *result = 0; - qt_x11_intern_atom( mimeType, result ); - qt_xdnd_atom_numbers->insert( mimeType, result ); - qt_xdnd_atom_to_str( *result ); - - return result; -} - - -void qt_xdnd_setup() { - // set up protocol atoms - qt_x11_intern_atom( "XdndEnter", &qt_xdnd_enter ); - qt_x11_intern_atom( "XdndPosition", &qt_xdnd_position ); - qt_x11_intern_atom( "XdndStatus", &qt_xdnd_status ); - qt_x11_intern_atom( "XdndLeave", &qt_xdnd_leave ); - qt_x11_intern_atom( "XdndDrop", &qt_xdnd_drop ); - qt_x11_intern_atom( "XdndFinished", &qt_xdnd_finished ); - qt_x11_intern_atom( "XdndTypeList", &qt_xdnd_type_list ); - - qt_x11_intern_atom( "XdndSelection", &qt_xdnd_selection ); - - qt_x11_intern_atom( "XdndAware", &qt_xdnd_aware ); - qt_x11_intern_atom( "XdndProxy", &qt_xdnd_proxy ); - - - qt_x11_intern_atom( "XdndActionCopy", &qt_xdnd_action_copy ); - qt_x11_intern_atom( "XdndActionLink", &qt_xdnd_action_link ); - qt_x11_intern_atom( "XdndActionMove", &qt_xdnd_action_move ); - qt_x11_intern_atom( "XdndActionPrivate", &qt_xdnd_action_private ); - - qt_x11_intern_atom( "QT_SELECTION", &qt_selection_property ); - qt_x11_intern_atom( "INCR", &qt_incr_atom ); - - tqAddPostRoutine( qt_xdnd_cleanup ); -} - - -void qt_xdnd_cleanup() -{ - delete qt_xdnd_drag_types; - qt_xdnd_drag_types = 0; - delete qt_xdnd_atom_numbers; - qt_xdnd_atom_numbers = 0; - delete qt_xdnd_target_data; - qt_xdnd_target_data = 0; - delete noDropCursor; - noDropCursor = 0; - delete copyCursor; - copyCursor = 0; - delete moveCursor; - moveCursor = 0; - delete linkCursor; - linkCursor = 0; - delete defaultPm; - defaultPm = 0; - delete desktop_proxy; - desktop_proxy = 0; -} - - -static TQWidget * find_child( TQWidget * tlw, TQPoint & p ) -{ - TQWidget * w = tlw; - - p = w->mapFromGlobal( p ); - bool done = false; - while ( !done ) { - done = true; - if ( ((TQExtraWidget*)w)->extraData() && - ((TQExtraWidget*)w)->extraData()->xDndProxy != 0 ) - break; // stop searching for widgets under the mouse cursor if found widget is a proxy. - if ( w->children() ) { - TQObjectListIt it( *w->children() ); - it.toLast(); - TQObject * o; - while( (o=it.current()) ) { - --it; - if ( o->isWidgetType() && - ((TQWidget*)o)->isVisible() && - ((TQWidget*)o)->geometry().contains( p ) && - !((TQWidget*)o)->isTopLevel()) { - w = (TQWidget *)o; - done = false; - p = w->mapFromParent( p ); - break; - } - } - } - } - return w; -} - - -static bool checkEmbedded(TQWidget* w, const XEvent* xe) -{ - if (!w) - return false; - - if (current_embedding_widget != 0 && current_embedding_widget != w) { - qt_xdnd_current_target = ((TQExtraWidget*)current_embedding_widget)->extraData()->xDndProxy; - qt_xdnd_current_proxy_target = qt_xdnd_current_target; - qt_xdnd_send_leave(); - qt_xdnd_current_target = 0; - qt_xdnd_current_proxy_target = 0; - current_embedding_widget = 0; - } - - TQWExtra* extra = ((TQExtraWidget*)w)->extraData(); - if ( extra && extra->xDndProxy != 0 ) { - - if (current_embedding_widget != w) { - - last_enter_event.xany.window = extra->xDndProxy; - XSendEvent( TQPaintDevice::x11AppDisplay(), extra->xDndProxy, False, NoEventMask, - &last_enter_event ); - current_embedding_widget = w; - } - - ((XEvent*)xe)->xany.window = extra->xDndProxy; - XSendEvent( TQPaintDevice::x11AppDisplay(), extra->xDndProxy, False, NoEventMask, - (XEvent*)xe ); - qt_xdnd_current_widget = w; - return true; - } - current_embedding_widget = 0; - return false; -} - -void qt_handle_xdnd_enter( TQWidget *, const XEvent * xe, bool /*passive*/ ) -{ - //if ( !w->neveHadAChildWithDropEventsOn() ) - //return; // haven't been set up for dnd - - qt_motifdnd_active = false; - - last_enter_event.xclient = xe->xclient; - - qt_xdnd_target_answerwas = false; - - const long *l = xe->xclient.data.l; - int version = (int)(((unsigned long)(l[1])) >> 24); - - if ( version > qt_xdnd_version ) - return; - - qt_xdnd_dragsource_xid = l[0]; - - int j = 0; - if ( l[1] & 1 ) { - // get the types from XdndTypeList - Atom type = None; - int f; - unsigned long n, a; - Atom *data; - XGetWindowProperty( TQPaintDevice::x11AppDisplay(), qt_xdnd_dragsource_xid, - qt_xdnd_type_list, 0, - qt_xdnd_max_type, False, XA_ATOM, &type, &f,&n,&a,(uchar**)&data ); - for ( ; jxclient.data.l; - - TQPoint p( (l[2] & 0xffff0000) >> 16, l[2] & 0x0000ffff ); - TQWidget * c = find_child( w, p ); // changes p to to c-local coordinates - - if (!passive && checkEmbedded(c, xe)) - return; - - if ( !c || ( !c->acceptDrops() && c->isDesktop() ) ) { - return; - } - - if ( l[0] != qt_xdnd_dragsource_xid ) { - //tqDebug( "xdnd drag position from unexpected source (%08lx not %08lx)", - // l[0], qt_xdnd_dragsource_xid ); - return; - } - - if (l[3] != 0) { - // timestamp from the source - qt_xdnd_target_current_time = tqt_x_user_time = l[3]; - } - - XClientMessageEvent response; - response.type = ClientMessage; - response.window = qt_xdnd_dragsource_xid; - response.format = 32; - response.message_type = qt_xdnd_status; - response.data.l[0] = w->winId(); - response.data.l[1] = 0; // flags - response.data.l[2] = 0; // x, y - response.data.l[3] = 0; // w, h - response.data.l[4] = 0; // action - - if ( !passive ) { // otherwise just reject - while ( c && !c->acceptDrops() && !c->isTopLevel() ) { - p = c->mapToParent( p ); - c = c->parentWidget(); - } - - TQRect answerRect( c->mapToGlobal( p ), TQSize( 1,1 ) ); - - TQDragMoveEvent me( p ); - TQDropEvent::Action accepted_action = xdndaction_to_qtaction(l[4]); - me.setAction(accepted_action); - - if ( c != qt_xdnd_current_widget ) { - qt_xdnd_target_answerwas = false; - if ( qt_xdnd_current_widget ) { - TQDragLeaveEvent e; - TQApplication::sendEvent( qt_xdnd_current_widget, &e ); - } - if ( c->acceptDrops() ) { - qt_xdnd_current_widget = c; - qt_xdnd_current_position = p; - - TQDragEnterEvent de( p ); - de.setAction(accepted_action); - TQApplication::sendEvent( c, &de ); - if ( de.isAccepted() ) { - me.accept( de.answerRect() ); - if ( !de.isActionAccepted() ) // only as a copy (move if we del) - accepted_action = TQDropEvent::Copy; - else - me.acceptAction(true); - } else { - me.ignore( de.answerRect() ); - } - } - } else { - if ( qt_xdnd_target_answerwas ) { - me.accept(); - me.acceptAction(global_requested_action == global_accepted_action); - } - } - - if ( !c->acceptDrops() ) { - qt_xdnd_current_widget = 0; - answerRect = TQRect( p, TQSize( 1, 1 ) ); - } else if ( xdndaction_to_qtaction(l[4]) < TQDropEvent::Private ) { - qt_xdnd_current_widget = c; - qt_xdnd_current_position = p; - - TQApplication::sendEvent( c, &me ); - qt_xdnd_target_answerwas = me.isAccepted(); - if ( me.isAccepted() ) { - response.data.l[1] = 1; // yes - if ( !me.isActionAccepted() ) // only as a copy (move if we del) - accepted_action = TQDropEvent::Copy; - } else { - response.data.l[0] = 0; - } - answerRect = me.answerRect().intersect( c->rect() ); - } else { - response.data.l[0] = 0; - answerRect = TQRect( p, TQSize( 1, 1 ) ); - } - answerRect = TQRect( c->mapToGlobal( answerRect.topLeft() ), - answerRect.size() ); - - if ( answerRect.left() < 0 ) - answerRect.setLeft( 0 ); - if ( answerRect.right() > 4096 ) - answerRect.setRight( 4096 ); - if ( answerRect.top() < 0 ) - answerRect.setTop( 0 ); - if ( answerRect.bottom() > 4096 ) - answerRect.setBottom( 4096 ); - if ( answerRect.width() < 0 ) - answerRect.setWidth( 0 ); - if ( answerRect.height() < 0 ) - answerRect.setHeight( 0 ); - - response.data.l[2] = (answerRect.x() << 16) + answerRect.y(); - response.data.l[3] = (answerRect.width() << 16) + answerRect.height(); - response.data.l[4] = qtaction_to_xdndaction(accepted_action); - global_accepted_action = accepted_action; - } - - // reset - qt_xdnd_target_current_time = CurrentTime; - - TQWidget * source = TQWidget::find( qt_xdnd_dragsource_xid ); - - if ( source && source->isDesktop() && !source->acceptDrops() ) - source = 0; - - if ( source ) - qt_handle_xdnd_status( source, (const XEvent *)&response, passive ); - else - XSendEvent( TQPaintDevice::x11AppDisplay(), qt_xdnd_dragsource_xid, False, - NoEventMask, (XEvent*)&response ); -} - - -void qt_handle_xdnd_status( TQWidget * w, const XEvent * xe, bool /*passive*/ ) -{ - const unsigned long *l = (const unsigned long *)xe->xclient.data.l; - // Messy: TQDragResponseEvent is just a call to TQDragManager function - global_accepted_action = xdndaction_to_qtaction(l[4]); - TQDragResponseEvent e( (int)(l[1] & 1) ); - TQApplication::sendEvent( w, &e ); - - if ( (int)(l[1] & 2) == 0 ) { - TQPoint p( (l[2] & 0xffff0000) >> 16, l[2] & 0x0000ffff ); - TQSize s( (l[3] & 0xffff0000) >> 16, l[3] & 0x0000ffff ); - qt_xdnd_source_sameanswer = TQRect( p, s ); - if ( qt_xdnd_source_sameanswer.isNull() ) { - // Application wants "coninutous" move events - } - } else { - qt_xdnd_source_sameanswer = TQRect(); - } -} - - -void qt_handle_xdnd_leave( TQWidget *w, const XEvent * xe, bool /*passive*/ ) -{ - //tqDebug( "xdnd leave" ); - if ( !qt_xdnd_current_widget || - w->topLevelWidget() != qt_xdnd_current_widget->topLevelWidget() ) { - return; // sanity - } - - if (checkEmbedded(current_embedding_widget, xe)) { - current_embedding_widget = 0; - qt_xdnd_current_widget = 0; - return; - } - - const unsigned long *l = (const unsigned long *)xe->xclient.data.l; - - TQDragLeaveEvent e; - TQApplication::sendEvent( qt_xdnd_current_widget, &e ); - - if ( l[0] != qt_xdnd_dragsource_xid ) { - // This often happens - leave other-process window quickly - //tqDebug( "xdnd drag leave from unexpected source (%08lx not %08lx", - //l[0], qt_xdnd_dragsource_xid ); - qt_xdnd_current_widget = 0; - return; - } - - qt_xdnd_dragsource_xid = 0; - qt_xdnd_types[0] = 0; - qt_xdnd_current_widget = 0; -} - - -void qt_xdnd_send_leave() -{ - if ( !qt_xdnd_current_target ) - return; - - XClientMessageEvent leave; - leave.type = ClientMessage; - leave.window = qt_xdnd_current_target; - leave.format = 32; - leave.message_type = qt_xdnd_leave; - leave.data.l[0] = qt_xdnd_dragsource_xid; - leave.data.l[1] = 0; // flags - leave.data.l[2] = 0; // x, y - leave.data.l[3] = 0; // w, h - leave.data.l[4] = 0; // just null - - TQWidget * w = TQWidget::find( qt_xdnd_current_proxy_target ); - - if ( w && w->isDesktop() && !w->acceptDrops() ) - w = 0; - - if ( w ) - qt_handle_xdnd_leave( w, (const XEvent *)&leave, false ); - else - XSendEvent( TQPaintDevice::x11AppDisplay(), qt_xdnd_current_proxy_target, False, - NoEventMask, (XEvent*)&leave ); - qt_xdnd_current_target = 0; - qt_xdnd_current_proxy_target = 0; -} - - - -void qt_handle_xdnd_drop( TQWidget *, const XEvent * xe, bool passive ) -{ - if ( !qt_xdnd_current_widget ) { - qt_xdnd_dragsource_xid = 0; - return; // sanity - } - - if (!passive && checkEmbedded(qt_xdnd_current_widget, xe)){ - current_embedding_widget = 0; - qt_xdnd_dragsource_xid = 0; - qt_xdnd_current_widget = 0; - return; - } - const unsigned long *l = (const unsigned long *)xe->xclient.data.l; - - //tqDebug( "xdnd drop" ); - - if ( l[0] != qt_xdnd_dragsource_xid ) { - //tqDebug( "xdnd drop from unexpected source (%08lx not %08lx", - // l[0], qt_xdnd_dragsource_xid ); - return; - } - - if (l[2] != 0) { - // update the "user time" from the timestamp in the event. - qt_xdnd_target_current_time = tqt_x_user_time = l[2]; - } - - if ( qt_xdnd_source_object ) - qt_xdnd_source_object->setTarget( qt_xdnd_current_widget ); - - if ( !passive ) { - TQDropEvent de( qt_xdnd_current_position ); - de.setAction( global_accepted_action ); - TQApplication::sendEvent( qt_xdnd_current_widget, &de ); - if ( !de.isAccepted() ) { - // Ignore a failed drag - global_accepted_action = TQDropEvent::Copy; - dndCancelled = true; - } - XClientMessageEvent finished; - finished.type = ClientMessage; - finished.window = qt_xdnd_dragsource_xid; - finished.format = 32; - finished.message_type = qt_xdnd_finished; - finished.data.l[0] = qt_xdnd_current_widget?qt_xdnd_current_widget->topLevelWidget()->winId():0; - finished.data.l[1] = 0; // flags - XSendEvent( TQPaintDevice::x11AppDisplay(), qt_xdnd_dragsource_xid, False, - NoEventMask, (XEvent*)&finished ); - } else { - TQDragLeaveEvent e; - TQApplication::sendEvent( qt_xdnd_current_widget, &e ); - } - qt_xdnd_dragsource_xid = 0; - qt_xdnd_current_widget = 0; - - // reset - qt_xdnd_target_current_time = CurrentTime; -} - - -void qt_handle_xdnd_finished( TQWidget *, const XEvent * xe, bool passive ) -{ - const unsigned long *l = (const unsigned long *)xe->xclient.data.l; - - if ( l[0] && (l[0] == qt_xdnd_current_target - || l[0] == qt_xdnd_current_proxy_target) ) { - // - if ( !passive ) - (void ) checkEmbedded( qt_xdnd_current_widget, xe); - current_embedding_widget = 0; - qt_xdnd_current_target = 0; - qt_xdnd_current_proxy_target = 0; - delete qt_xdnd_source_object; - qt_xdnd_source_object = 0; - } -} - - -void TQDragManager::timerEvent( TQTimerEvent* e ) -{ - if ( e->timerId() == heartbeat ) { - if( need_modifiers_check ) { - Window root, child; - int root_x, root_y, win_x, win_y; - unsigned int mask; - XQueryPointer( tqt_xdisplay(), tqt_xrootwin( qt_xdnd_current_screen ), - &root, &child, &root_x, &root_y, &win_x, &win_y, &mask ); - if( updateMode( (ButtonState)qt_x11_translateButtonState( mask ))) - qt_xdnd_source_sameanswer = TQRect(); // force move - } - need_modifiers_check = true; - if( qt_xdnd_source_sameanswer.isNull() ) - move( TQCursor::pos() ); - } -} - -static bool qt_xdnd_was_move = false; -static bool qt_xdnd_found = false; -// check whole incoming X queue for move events -// checking whole queue is done by always returning False in the predicate -// if there's another move event in the queue, and there's not a mouse button -// or keyboard or ClientMessage event before it, the current move event -// may be safely discarded -// this helps avoiding being overloaded by being flooded from many events -// from the XServer -static -Bool qt_xdnd_predicate( Display*, XEvent* ev, XPointer ) -{ - if( qt_xdnd_found ) - return False; - if( ev->type == MotionNotify ) - { - qt_xdnd_was_move = true; - qt_xdnd_found = true; - } - if( ev->type == ButtonPress || ev->type == ButtonRelease - || ev->type == XKeyPress || ev->type == XKeyRelease - || ev->type == ClientMessage ) - { - qt_xdnd_was_move = false; - qt_xdnd_found = true; - } - return False; -} - -static -bool qt_xdnd_another_movement() -{ - qt_xdnd_was_move = false; - qt_xdnd_found = false; - XEvent dummy; - XCheckIfEvent( tqt_xdisplay(), &dummy, qt_xdnd_predicate, NULL ); - return qt_xdnd_was_move; -} - -bool TQDragManager::eventFilter( TQObject * o, TQEvent * e) -{ - if ( beingCancelled ) { - if ( e->type() == TQEvent::KeyRelease && - ((TQKeyEvent*)e)->key() == Key_Escape ) { - tqApp->removeEventFilter( this ); - object = 0; - dragSource = 0; - beingCancelled = false; - tqApp->exit_loop(); - return true; // block the key release - } - return false; - } - - Q_ASSERT( object != 0 ); - - if ( !o->isWidgetType() ) - return false; - - if ( e->type() == TQEvent::MouseMove ) { - TQMouseEvent* me = (TQMouseEvent *)e; - if( !qt_xdnd_another_movement()) { - updateMode(me->stateAfter()); - move( me->globalPos() ); - } - need_modifiers_check = false; - return true; - } else if ( e->type() == TQEvent::MouseButtonRelease ) { - tqApp->removeEventFilter( this ); - if ( willDrop ) - drop(); - else - cancel(); - object = 0; - dragSource = 0; - beingCancelled = false; - tqApp->exit_loop(); - return true; - } else if ( e->type() == TQEvent::DragResponse ) { - if ( ((TQDragResponseEvent *)e)->dragAccepted() ) { - if ( !willDrop ) { - willDrop = true; - } - } else { - if ( willDrop ) { - willDrop = false; - } - } - updateCursor(); - return true; - } - - if ( e->type() == TQEvent::KeyPress - || e->type() == TQEvent::KeyRelease ) - { - TQKeyEvent *ke = ((TQKeyEvent*)e); - if ( ke->key() == Key_Escape && e->type() == TQEvent::KeyPress ) { - cancel(); - tqApp->removeEventFilter( this ); - object = 0; - dragSource = 0; - beingCancelled = false; - tqApp->exit_loop(); - } else { - if( updateMode(ke->stateAfter())) { - qt_xdnd_source_sameanswer = TQRect(); // force move - move( TQCursor::pos() ); - } - need_modifiers_check = false; - } - return true; // Eat all key events - } - - // ### We bind modality to widgets, so we have to do this - // ### "manually". - // DnD is modal - eat all other interactive events - switch ( e->type() ) { - case TQEvent::MouseButtonPress: - case TQEvent::MouseButtonRelease: - case TQEvent::MouseButtonDblClick: - case TQEvent::MouseMove: - case TQEvent::KeyPress: - case TQEvent::KeyRelease: - case TQEvent::Wheel: - case TQEvent::Accel: - case TQEvent::AccelAvailable: - case TQEvent::AccelOverride: - return true; - default: - return false; - } -} - - -static TQt::ButtonState oldstate; -bool TQDragManager::updateMode( ButtonState newstate ) -{ - if ( newstate == oldstate ) - return false; - const int both = ShiftButton|ControlButton; - if ( (newstate & both) == both ) { - global_requested_action = TQDropEvent::Link; - } else { - bool local = qt_xdnd_source_object != 0; - if ( drag_mode == TQDragObject::DragMove ) - global_requested_action = TQDropEvent::Move; - else if ( drag_mode == TQDragObject::DragCopy ) - global_requested_action = TQDropEvent::Copy; - else if ( drag_mode == TQDragObject::DragLink ) - global_requested_action = TQDropEvent::Link; - else { - if ( drag_mode == TQDragObject::DragDefault && local ) - global_requested_action = TQDropEvent::Move; - else - global_requested_action = TQDropEvent::Copy; - if ( newstate & ShiftButton ) - global_requested_action = TQDropEvent::Move; - else if ( newstate & ControlButton ) - global_requested_action = TQDropEvent::Copy; - } - } - oldstate = newstate; - return true; -} - - -void TQDragManager::createCursors() -{ - if ( !noDropCursor ) { - noDropCursor = new TQCursor( ForbiddenCursor ); - if ( !pm_cursor[0].isNull() ) - moveCursor = new TQCursor(pm_cursor[0], 0,0); - if ( !pm_cursor[1].isNull() ) - copyCursor = new TQCursor(pm_cursor[1], 0,0); - if ( !pm_cursor[2].isNull() ) - linkCursor = new TQCursor(pm_cursor[2], 0,0); - } -} - -void TQDragManager::updateCursor() -{ - TQCursor *c; - if ( willDrop ) { - if ( global_accepted_action == TQDropEvent::Copy ) { - if ( global_requested_action == TQDropEvent::Move ) - c = moveCursor; // (source can delete) - else - c = copyCursor; - } else if ( global_accepted_action == TQDropEvent::Link ) { - c = linkCursor; - } else { - c = moveCursor; - } - if ( qt_xdnd_deco ) { - qt_xdnd_deco->show(); - qt_xdnd_deco->raise(); - } - } else { - c = noDropCursor; - //if ( qt_xdnd_deco ) - // qt_xdnd_deco->hide(); - } -#ifndef TQT_NO_CURSOR - if ( c ) - tqApp->setOverrideCursor( *c, true ); -#endif -} - - -void TQDragManager::cancel( bool deleteSource ) -{ - killTimer( heartbeat ); - heartbeat = -1; - if ( object ) { - beingCancelled = true; - object = 0; - } - - if ( qt_xdnd_current_target ) { - qt_xdnd_send_leave(); - } - -#ifndef TQT_NO_CURSOR - if ( restoreCursor ) { - TQApplication::restoreOverrideCursor(); - restoreCursor = false; - } -#endif - - if ( deleteSource ) - delete qt_xdnd_source_object; - qt_xdnd_source_object = 0; - delete qt_xdnd_deco; - qt_xdnd_deco = 0; - - dndCancelled = true; -} - -static -Window findRealWindow( const TQPoint & pos, Window w, int md ) -{ - if ( qt_xdnd_deco && w == qt_xdnd_deco->winId() ) - return 0; - - if ( md ) { - qt_ignore_badwindow(); - XWindowAttributes attr; - XGetWindowAttributes( TQPaintDevice::x11AppDisplay(), w, &attr ); - if (qt_badwindow()) - return 0; - - if ( attr.map_state == IsViewable - && TQRect(attr.x,attr.y,attr.width,attr.height) - .contains(pos) ) - { - { - Atom type = None; - int f; - unsigned long n, a; - unsigned char *data; - - XGetWindowProperty( TQPaintDevice::x11AppDisplay(), w, qt_xdnd_aware, 0, - 0, False, AnyPropertyType, &type, &f,&n,&a,&data ); - if ( data ) XFree(data); - if ( type ) return w; - } - - Window r, p; - Window* c; - uint nc; - if ( XQueryTree( TQPaintDevice::x11AppDisplay(), w, &r, &p, &c, &nc ) ) { - r=0; - for (uint i=nc; !r && i--; ) { - r = findRealWindow( pos-TQPoint(attr.x,attr.y), - c[i], md-1 ); - } - XFree(c); - if ( r ) - return r; - - // We didn't find a client window! Just use the - // innermost window. - } - - // No children! - return w; - } - } - return 0; -} - -void TQDragManager::move( const TQPoint & globalPos ) -{ - if (!object || !object->source()) { - // perhaps the target crashed? - return; - } - - int screen = TQCursor::x11Screen(); - if ( ( qt_xdnd_current_screen == -1 && screen != TQPaintDevice::x11AppScreen() ) || - ( screen != qt_xdnd_current_screen ) ) { - // recreate the pixmap on the new screen... - delete qt_xdnd_deco; - qt_xdnd_deco = new TQShapedPixmapWidget( screen ); - qt_xdnd_deco->x11SetWindowTransient( dragSource->topLevelWidget()); - if (!TQWidget::mouseGrabber()) { - updatePixmap(); - qt_xdnd_deco->grabMouse(); - } - } - updatePixmap( globalPos ); - - if ( qt_xdnd_source_sameanswer.contains( globalPos ) && - qt_xdnd_source_sameanswer.isValid() ) { - return; - } - - qt_xdnd_current_screen = screen; - Window rootwin = TQPaintDevice::x11AppRootWindow( qt_xdnd_current_screen ); - Window target = 0; - int lx = 0, ly = 0; - if ( !XTranslateCoordinates( TQPaintDevice::x11AppDisplay(), rootwin, rootwin, - globalPos.x(), globalPos.y(), - &lx, &ly, &target) ) - // some wierd error... - return; - - if ( target == rootwin ) { - // Ok. - } else if ( target ) { - //me - Window src = rootwin; - while (target != 0) { - int lx2, ly2; - Window t; - // translate coordinates - if (!XTranslateCoordinates(TQPaintDevice::x11AppDisplay(), src, target, - lx, ly, &lx2, &ly2, &t)) { - target = 0; - break; - } - lx = lx2; - ly = ly2; - src = target; - - // check if it has XdndAware - Atom type = None; - int f; - unsigned long n, a; - unsigned char *data = 0; - XGetWindowProperty(TQPaintDevice::x11AppDisplay(), target, qt_xdnd_aware, 0, 0, False, - AnyPropertyType, &type, &f,&n,&a,&data); - if (data) - XFree(data); - if (type) - break; - - // find child at the coordinates - if (!XTranslateCoordinates( TQPaintDevice::x11AppDisplay(), src, src, - lx, ly, &lx2, &ly2, &target)) { - target = 0; - break; - } - } - if ( qt_xdnd_deco && (!target || target == qt_xdnd_deco->winId()) ) { - target = findRealWindow(globalPos,rootwin,6); - } - } - - TQWidget* w; - if ( target ) { - w = TQWidget::find( (WId)target ); - if ( w && w->isDesktop() && !w->acceptDrops() ) - w = 0; - } else { - w = 0; - target = rootwin; - } - - WId proxy_target = target; - int target_version = 1; - - { - Atom type = None; - int r, f; - unsigned long n, a; - WId *proxy_id; - qt_ignore_badwindow(); - r = XGetWindowProperty( tqt_xdisplay(), target, qt_xdnd_proxy, 0, - 1, False, XA_WINDOW, &type, &f,&n,&a,(uchar**)&proxy_id ); - if ( ( r != Success ) || qt_badwindow() ) { - proxy_target = target = 0; - } else if ( type == XA_WINDOW && proxy_id ) { - proxy_target = *proxy_id; - XFree(proxy_id); - proxy_id = 0; - r = XGetWindowProperty( tqt_xdisplay(), proxy_target, qt_xdnd_proxy, 0, - 1, False, XA_WINDOW, &type, &f,&n,&a,(uchar**)&proxy_id ); - if ( ( r != Success ) || qt_badwindow() || !type || !proxy_id || *proxy_id != proxy_target ) { - // Bogus - proxy_target = 0; - target = 0; - } - if ( proxy_id ) - XFree(proxy_id); - } - if ( proxy_target ) { - int *tv; - qt_ignore_badwindow(); - r = XGetWindowProperty( tqt_xdisplay(), proxy_target, qt_xdnd_aware, 0, - 1, False, AnyPropertyType, &type, &f,&n,&a,(uchar**)&tv ); - if ( r != Success ) { - target = 0; - } else { - target_version = TQMIN(qt_xdnd_version,tv ? *tv : 1); - if ( tv ) - XFree( tv ); - if (!(!qt_badwindow() && type)) - target = 0; - } - } - } - - if ( target != qt_xdnd_current_target ) { - if ( qt_xdnd_current_target ) - qt_xdnd_send_leave(); - - qt_xdnd_current_target = target; - qt_xdnd_current_proxy_target = proxy_target; - if ( target ) { - TQMemArray type; - int flags = target_version << 24; - const char* fmt; - int nfmt=0; - for (nfmt=0; (fmt=object->format(nfmt)); nfmt++) { - type.resize(nfmt+1); - type[nfmt] = *qt_xdnd_str_to_atom( fmt ); - } - if ( nfmt >= 3 ) { - XChangeProperty( TQPaintDevice::x11AppDisplay(), - object->source()->winId(), qt_xdnd_type_list, - XA_ATOM, 32, PropModeReplace, - (unsigned char *)type.data(), - type.size() ); - flags |= 0x0001; - } - XClientMessageEvent enter; - enter.type = ClientMessage; - enter.window = target; - enter.format = 32; - enter.message_type = qt_xdnd_enter; - enter.data.l[0] = object->source()->winId(); - enter.data.l[1] = flags; - enter.data.l[2] = type.size()>0 ? type[0] : 0; - enter.data.l[3] = type.size()>1 ? type[1] : 0; - enter.data.l[4] = type.size()>2 ? type[2] : 0; - // provisionally set the rectangle to 5x5 pixels... - qt_xdnd_source_sameanswer = TQRect( globalPos.x() - 2, - globalPos.y() -2 , 5, 5 ); - - if ( w ) { - qt_handle_xdnd_enter( w, (const XEvent *)&enter, false ); - } else if ( target ) { - XSendEvent( TQPaintDevice::x11AppDisplay(), proxy_target, False, NoEventMask, - (XEvent*)&enter ); - } - } - } - - if ( target ) { - XClientMessageEvent move; - move.type = ClientMessage; - move.window = target; - move.format = 32; - move.message_type = qt_xdnd_position; - move.window = target; - move.data.l[0] = object->source()->winId(); - move.data.l[1] = 0; // flags - move.data.l[2] = (globalPos.x() << 16) + globalPos.y(); - move.data.l[3] = tqt_x_time; - move.data.l[4] = qtaction_to_xdndaction( global_requested_action ); - - if ( w ) - qt_handle_xdnd_position( w, (const XEvent *)&move, false ); - else - XSendEvent( TQPaintDevice::x11AppDisplay(), proxy_target, False, NoEventMask, - (XEvent*)&move ); - } else { - if ( willDrop ) { - willDrop = false; - updateCursor(); - } - } -} - - -void TQDragManager::drop() -{ - killTimer( heartbeat ); - heartbeat = -1; - if ( !qt_xdnd_current_target ) - return; - - delete qt_xdnd_deco; - qt_xdnd_deco = 0; - - XClientMessageEvent drop; - drop.type = ClientMessage; - drop.window = qt_xdnd_current_target; - drop.format = 32; - drop.message_type = qt_xdnd_drop; - drop.data.l[0] = object->source()->winId(); - drop.data.l[1] = 0; // flags - drop.data.l[2] = tqt_x_time; - drop.data.l[3] = 0; - drop.data.l[4] = 0; - - TQWidget * w = TQWidget::find( qt_xdnd_current_proxy_target ); - - if ( w && w->isDesktop() && !w->acceptDrops() ) - w = 0; - - if ( w ) - qt_handle_xdnd_drop( w, (const XEvent *)&drop, false ); - else - XSendEvent( TQPaintDevice::x11AppDisplay(), qt_xdnd_current_proxy_target, False, - NoEventMask, (XEvent*)&drop ); - -#ifndef TQT_NO_CURSOR - if ( restoreCursor ) { - TQApplication::restoreOverrideCursor(); - restoreCursor = false; - } -#endif -} - - - -bool qt_xdnd_handle_badwindow() -{ - if ( qt_xdnd_source_object && qt_xdnd_current_target ) { - qt_xdnd_current_target = 0; - qt_xdnd_current_proxy_target = 0; - delete qt_xdnd_source_object; - qt_xdnd_source_object = 0; - delete qt_xdnd_deco; - qt_xdnd_deco = 0; - return true; - } - if ( qt_xdnd_dragsource_xid ) { - qt_xdnd_dragsource_xid = 0; - if ( qt_xdnd_current_widget ) { - TQDragLeaveEvent e; - TQApplication::sendEvent( qt_xdnd_current_widget, &e ); - qt_xdnd_current_widget = 0; - } - return true; - } - return false; -} - - -/*! - \class TQDragMoveEvent tqevent.h - \ingroup events - \ingroup draganddrop - \brief The TQDragMoveEvent class provides an event which is sent while a drag and drop is in progress. - - When a widget \link TQWidget::setAcceptDrops() accepts drop - events\endlink, it will receive this event repeatedly while the - drag is within the widget's boundaries. The widget should examine - the event to see what data it \link TQDragMoveEvent::provides() - provides\endlink, and accept() the drop if appropriate. - - Note that this class inherits most of its functionality from - TQDropEvent. -*/ - - -/*! - Returns true if this event provides format \a mimeType; otherwise - returns false. - - \sa data() -*/ - -bool TQDropEvent::provides( const char *mimeType ) const -{ - if ( qt_motifdnd_active && tqstrnicmp( mimeType, "text/", 5 ) == 0 ) - return true; - - int n=0; - const char* f; - do { - f = format( n ); - if ( !f ) - return false; - n++; - } while( tqstricmp( mimeType, f ) ); - return true; -} - -void qt_xdnd_handle_selection_request( const XSelectionRequestEvent * req ) -{ - if ( !req ) - return; - XEvent evt; - evt.xselection.type = SelectionNotify; - evt.xselection.display = req->display; - evt.xselection.requestor = req->requestor; - evt.xselection.selection = req->selection; - evt.xselection.target = req->target; - evt.xselection.property = None; - evt.xselection.time = req->time; - const char* format = qt_xdnd_atom_to_str( req->target ); - if ( format && qt_xdnd_source_object && - qt_xdnd_source_object->provides( format ) ) { - TQByteArray a = qt_xdnd_source_object->encodedData(format); - XChangeProperty ( TQPaintDevice::x11AppDisplay(), req->requestor, req->property, - req->target, 8, PropModeReplace, - (unsigned char *)a.data(), a.size() ); - evt.xselection.property = req->property; - } - // ### this can die if req->requestor crashes at the wrong - // ### moment - XSendEvent( TQPaintDevice::x11AppDisplay(), req->requestor, False, 0, &evt ); -} - -/* - XChangeProperty ( TQPaintDevice::x11AppDisplay(), req->requestor, req->property, - XA_STRING, 8, - PropModeReplace, - (uchar *)d->text(), strlen(d->text()) ); - evt.xselection.property = req->property; -*/ - -static TQByteArray qt_xdnd_obtain_data( const char *format ) -{ - TQByteArray result; - - TQWidget* w; - if ( qt_xdnd_dragsource_xid && qt_xdnd_source_object && - (w=TQWidget::find( qt_xdnd_dragsource_xid )) - && (!w->isDesktop() || w->acceptDrops()) ) - { - TQDragObject * o = qt_xdnd_source_object; - if ( o->provides( format ) ) - result = o->encodedData(format); - return result; - } - - Atom * a = qt_xdnd_str_to_atom( format ); - if ( !a || !*a ) - return result; - - if ( !qt_xdnd_target_data ) - qt_xdnd_target_data = new TQIntDict( 17 ); - - if ( qt_xdnd_target_data->find( (int)*a ) ) { - result = *(qt_xdnd_target_data->find( (int)*a )); - } else { - if ( XGetSelectionOwner( TQPaintDevice::x11AppDisplay(), - qt_xdnd_selection ) == None ) - return result; // should never happen? - - TQWidget* tw = qt_xdnd_current_widget; - if ( !qt_xdnd_current_widget || - qt_xdnd_current_widget->isDesktop() ) { - tw = new TQWidget; - } - XConvertSelection( TQPaintDevice::x11AppDisplay(), - qt_xdnd_selection, - *a, - qt_xdnd_selection, - tw->winId(), - qt_xdnd_target_current_time ); - XFlush( TQPaintDevice::x11AppDisplay() ); - - XEvent xevent; - bool got=qt_xclb_wait_for_event( TQPaintDevice::x11AppDisplay(), - tw->winId(), - SelectionNotify, &xevent, 5000); - if ( got ) { - Atom type; - - if ( qt_xclb_read_property( TQPaintDevice::x11AppDisplay(), - tw->winId(), - qt_xdnd_selection, true, - &result, 0, &type, 0, false ) ) { - if ( type == qt_incr_atom ) { - int nbytes = result.size() >= 4 ? *((int*)result.data()) : 0; - result = qt_xclb_read_incremental_property( TQPaintDevice::x11AppDisplay(), - tw->winId(), - qt_xdnd_selection, - nbytes, false ); - } else if ( type != *a ) { - // (includes None) tqDebug( "TQt clipboard: unknown atom %ld", type); - } -#if 0 - // this needs to be matched by a qt_xdnd_target_data->clear() - // when each drag is finished. for 2.0, we do the safe thing - // and disable the entire caching. - if ( type != None ) - qt_xdnd_target_data->insert( (int)((long)a), new TQByteArray(result) ); -#endif - } - } - if ( !qt_xdnd_current_widget || - qt_xdnd_current_widget->isDesktop() ) { - delete tw; - } - } - - return result; -} - - -/* - Enable drag and drop for widget w by installing the proper - properties on w's toplevel widget. -*/ -bool qt_dnd_enable( TQWidget* w, bool on ) -{ - w = w->topLevelWidget(); - - if ( on ) { - if ( ( (TQExtraWidget*)w)->topData()->dnd ) - return true; // been there, done that - ((TQExtraWidget*)w)->topData()->dnd = 1; - } - - qt_motifdnd_enable( w, on ); - return qt_xdnd_enable( w, on ); -} - - -/*! - \class TQDropEvent tqevent.h - \ingroup events - \ingroup draganddrop - - \brief The TQDropEvent class provides an event which is sent when a drag and drop is completed. - - When a widget \link TQWidget::setAcceptDrops() accepts drop - events\endlink, it will receive this event if it has accepted the - most recent TQDragEnterEvent or TQDragMoveEvent sent to it. - - The widget should use data() to extract the data in an appropriate - format. -*/ - - -/*! - \fn TQDropEvent::TQDropEvent (const TQPoint & pos, Type typ) - - Constructs a drop event that drops a drop of type \a typ on point - \a pos. -*/ // ### pos is in which coordinate system? - - -/*! - Returns a byte array containing the drag's data, in \a format. - - data() normally needs to get the data from the drag source, which - is potentially very slow, so it's advisable to call this function - only if you're sure that you will need the data in \a format. - - The resulting data will have a size of 0 if the format was not - available. - - \sa format() TQByteArray::size() -*/ - -TQByteArray TQDropEvent::encodedData( const char *format ) const -{ - if ( qt_motifdnd_active ) - return qt_motifdnd_obtain_data( format ); - return qt_xdnd_obtain_data( format ); -} - -/*! - Returns a string describing one of the available data types for - this drag. Common examples are "text/plain" and "image/gif". If \a - n is less than zero or greater than the number of available data - types, format() returns 0. - - This function is provided mainly for debugging. Most drop targets - will use provides(). - - \sa data() provides() -*/ - -const char* TQDropEvent::format( int n ) const -{ - if ( qt_motifdnd_active ) - return qt_motifdnd_format( n ); - - int i = 0; - while( iparent() ) - return false; - - if ( object ) { - cancel(); - tqApp->removeEventFilter( this ); - beingCancelled = false; - } - - if ( qt_xdnd_source_object ) { - // the last drag and drop operation hasn't finished, so we are going to wait - // for one second to see if it does... if the finish message comes after this, - // then we could still have problems, but this is highly unlikely - TQApplication::flushX(); - - TQTime started = TQTime::currentTime(); - TQTime now = started; - do { - XEvent event; - if ( XCheckTypedEvent( TQPaintDevice::x11AppDisplay(), - ClientMessage, &event ) ) - tqApp->x11ProcessEvent( &event ); - - now = TQTime::currentTime(); - if ( started > now ) // crossed midnight - started = now; - - // sleep 50ms, so we don't use up CPU cycles all the time. - struct timeval usleep_tv; - usleep_tv.tv_sec = 0; - usleep_tv.tv_usec = 50000; - select(0, 0, 0, 0, &usleep_tv); - } while ( qt_xdnd_source_object && started.msecsTo(now) < 1000 ); - } - - qt_xdnd_source_object = o; - qt_xdnd_source_object->setTarget( 0 ); - qt_xdnd_deco = new TQShapedPixmapWidget(); - - willDrop = false; - - object = o; - updatePixmap(); - - dragSource = (TQWidget *)(object->parent()); - - qt_xdnd_deco->x11SetWindowTransient( dragSource->topLevelWidget()); - tqApp->installEventFilter( this ); - qt_xdnd_source_current_time = tqt_x_time; - XSetSelectionOwner( TQPaintDevice::x11AppDisplay(), qt_xdnd_selection, - dragSource->topLevelWidget()->winId(), - qt_xdnd_source_current_time ); - oldstate = ButtonState(-1); // #### Should use state that caused the drag - drag_mode = mode; - global_accepted_action = TQDropEvent::Copy; - updateMode(ButtonState(0)); - qt_xdnd_source_sameanswer = TQRect(); - move(TQCursor::pos()); - heartbeat = startTimer(200); - need_modifiers_check = false; - -#ifndef TQT_NO_CURSOR - tqApp->setOverrideCursor( arrowCursor ); - restoreCursor = true; - updateCursor(); -#endif - - dndCancelled = false; - qt_xdnd_dragging = true; - - if (!TQWidget::mouseGrabber()) - qt_xdnd_deco->grabMouse(); - - tqApp->enter_loop(); // Do the DND. - -#ifndef TQT_NO_CURSOR - tqApp->restoreOverrideCursor(); -#endif - - delete qt_xdnd_deco; - qt_xdnd_deco = 0; - killTimer( heartbeat ); - heartbeat = -1; - qt_xdnd_current_screen = -1; - qt_xdnd_dragging = false; - - return ((! dndCancelled) && // source del? - (global_accepted_action == TQDropEvent::Copy && - global_requested_action == TQDropEvent::Move)); - - // qt_xdnd_source_object persists until we get an xdnd_finish message -} - -void TQDragManager::updatePixmap( const TQPoint& cursorPos ) -{ - if ( qt_xdnd_deco ) { - TQPixmap pm; - TQPoint pm_hot(default_pm_hotx,default_pm_hoty); - if ( object ) { - pm = object->pixmap(); - if ( !pm.isNull() ) - pm_hot = object->pixmapHotSpot(); - } - if ( pm.isNull() ) { - if ( !defaultPm ) - defaultPm = new TQPixmap(default_pm); - pm = *defaultPm; - } - qt_xdnd_deco->setPixmap(pm, pm_hot); - qt_xdnd_deco->move(cursorPos-pm_hot); - //if ( willDrop ) { - qt_xdnd_deco->show(); - //} else { - // qt_xdnd_deco->hide(); - //} - } -} - -void TQDragManager::updatePixmap() -{ - updatePixmap( TQCursor::pos()); -} - -#endif // TQT_NO_DRAGANDDROP diff --git a/src/kernel/qt_kernel.pri b/src/kernel/qt_kernel.pri index 05d5c8cd7..873317a2f 100644 --- a/src/kernel/qt_kernel.pri +++ b/src/kernel/qt_kernel.pri @@ -137,7 +137,7 @@ kernel { $$KERNEL_CPP/tqclipboard_x11.cpp \ $$KERNEL_CPP/tqcolor_x11.cpp \ $$KERNEL_CPP/tqcursor_x11.cpp \ - $$KERNEL_CPP/qdnd_x11.cpp \ + $$KERNEL_CPP/tqdnd_x11.cpp \ $$KERNEL_CPP/tqdesktopwidget_x11.cpp \ $$KERNEL_CPP/tqfont_x11.cpp \ $$KERNEL_CPP/tqinputcontext.cpp \ diff --git a/src/kernel/tqapplication_x11.cpp b/src/kernel/tqapplication_x11.cpp index 2c78dc6c0..e43d3654d 100644 --- a/src/kernel/tqapplication_x11.cpp +++ b/src/kernel/tqapplication_x11.cpp @@ -481,7 +481,7 @@ long TQScrollInProgress::serial=0; static TQPtrList *sip_list = 0; -// stuff in qt_xdnd.cpp +// stuff in tqdnd_x11.cpp // setup extern void qt_xdnd_setup(); // x event handling diff --git a/src/kernel/tqclipboard_x11.cpp b/src/kernel/tqclipboard_x11.cpp index 3ab6ec5f0..d9a5d3c68 100644 --- a/src/kernel/tqclipboard_x11.cpp +++ b/src/kernel/tqclipboard_x11.cpp @@ -562,7 +562,7 @@ bool qt_xclb_wait_for_event( Display *dpy, Window win, int type, XEvent *event, static inline int maxSelectionIncr( Display *dpy ) { return XMaxRequestSize(dpy) > 65536 ? 65536*4 : XMaxRequestSize(dpy)*4 - 100; } -// uglyhack: externed into qt_xdnd.cpp. qt is really not designed for +// uglyhack: externed into tqdnd_x11.cpp. qt is really not designed for // single-platform, multi-purpose blocks of code... bool qt_xclb_read_property( Display *dpy, Window win, Atom property, bool deleteProperty, @@ -690,7 +690,7 @@ bool qt_xclb_read_property( Display *dpy, Window win, Atom property, } -// this is externed into qt_xdnd.cpp too. +// this is externed into tqdnd_x11.cpp too. TQByteArray qt_xclb_read_incremental_property( Display *dpy, Window win, Atom property, int nbytes, bool nullterm ) diff --git a/src/kernel/tqdnd_x11.cpp b/src/kernel/tqdnd_x11.cpp new file mode 100644 index 000000000..4f6b54ba7 --- /dev/null +++ b/src/kernel/tqdnd_x11.cpp @@ -0,0 +1,1859 @@ +/**************************************************************************** +** +** XDND implementation for TQt. See http://www.cco.caltech.edu/~jafl/xdnd/ +** +** Created : 980320 +** +** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved. +** +** This file is part of the kernel module of the TQt GUI Toolkit. +** +** This file may be used under the terms of the GNU General +** Public License versions 2.0 or 3.0 as published by the Free +** Software Foundation and appearing in the files LICENSE.GPL2 +** and LICENSE.GPL3 included in the packaging of this file. +** Alternatively you may (at your option) use any later version +** of the GNU General Public License if such license has been +** publicly approved by Trolltech ASA (or its successors, if any) +** and the KDE Free TQt Foundation. +** +** Please review the following information to ensure GNU General +** Public Licensing requirements will be met: +** http://trolltech.com/products/qt/licenses/licensing/opensource/. +** If you are unsure which license is appropriate for your use, please +** review the following information: +** http://trolltech.com/products/qt/licenses/licensing/licensingoverview +** or contact the sales department at sales@trolltech.com. +** +** This file may be used under the terms of the Q Public License as +** defined by Trolltech ASA and appearing in the file LICENSE.TQPL +** included in the packaging of this file. Licensees holding valid TQt +** Commercial licenses may use this file in accordance with the TQt +** Commercial License Agreement provided with the Software. +** +** This file is provided "AS IS" with NO WARRANTY OF ANY KIND, +** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted +** herein. +** +**********************************************************************/ + +#include "qplatformdefs.h" + +#include "tqapplication.h" + +#ifndef TQT_NO_DRAGANDDROP + +#include "tqwidget.h" +#include "tqintdict.h" +#include "tqdatetime.h" +#include "tqdict.h" +#include "tqguardedptr.h" +#include "tqdragobject.h" +#include "tqobjectlist.h" +#include "tqcursor.h" +#include "tqbitmap.h" +#include "tqpainter.h" + +#include "tqt_x11_p.h" + +// conflict resolution + +const int XKeyPress = KeyPress; +const int XKeyRelease = KeyRelease; +#undef KeyPress +#undef KeyRelease + +// this stuff is copied from qapp_x11.cpp + +extern void qt_x11_intern_atom( const char *, Atom * ); + +#if defined(Q_C_CALLBACKS) +extern "C" { +#endif + +extern void qt_ignore_badwindow(); +extern bool qt_badwindow(); +extern void tqt_enter_modal( TQWidget *widget ); +extern void tqt_leave_modal( TQWidget *widget ); + +#if defined(Q_C_CALLBACKS) +} +#endif + +extern Window qt_x11_findClientWindow( Window, Atom, bool ); +extern Atom tqt_wm_state; +extern Time tqt_x_time; +extern Time tqt_x_user_time; + +// this stuff is copied from qclb_x11.cpp + +extern bool qt_xclb_wait_for_event( Display *dpy, Window win, int type, + XEvent *event, int timeout ); +extern bool qt_xclb_read_property( Display *dpy, Window win, Atom property, + bool deleteProperty, + TQByteArray *buffer, int *size, Atom *type, + int *format, bool nullterm ); +extern TQByteArray qt_xclb_read_incremental_property( Display *dpy, Window win, + Atom property, + int nbytes, bool nullterm ); +// and all this stuff is copied -into- qapp_x11.cpp + +void qt_xdnd_setup(); +void qt_handle_xdnd_enter( TQWidget *, const XEvent *, bool ); +void qt_handle_xdnd_position( TQWidget *, const XEvent *, bool ); +void qt_handle_xdnd_status( TQWidget *, const XEvent *, bool ); +void qt_handle_xdnd_leave( TQWidget *, const XEvent *, bool ); +void qt_handle_xdnd_drop( TQWidget *, const XEvent *, bool ); +void qt_handle_xdnd_finished( TQWidget *, const XEvent *, bool ); +void qt_xdnd_handle_selection_request( const XSelectionRequestEvent * ); +bool qt_xdnd_handle_badwindow(); +// client messages +Atom qt_xdnd_enter; +Atom qt_xdnd_position; +Atom qt_xdnd_status; +Atom qt_xdnd_leave; +Atom qt_xdnd_drop; +Atom qt_xdnd_finished; +Atom qt_xdnd_type_list; +const int qt_xdnd_version = 4; + +extern int qt_x11_translateButtonState( int s ); + +// Actions +// +// The Xdnd spec allows for user-defined actions. This could be implemented +// with a registration process in TQt. WE SHOULD do that later. +// +Atom qt_xdnd_action_copy; +Atom qt_xdnd_action_link; +Atom qt_xdnd_action_move; +Atom qt_xdnd_action_private; +static +TQDropEvent::Action xdndaction_to_qtaction(Atom atom) +{ + if ( atom == qt_xdnd_action_copy || atom == 0 ) + return TQDropEvent::Copy; + if ( atom == qt_xdnd_action_link ) + return TQDropEvent::Link; + if ( atom == qt_xdnd_action_move ) + return TQDropEvent::Move; + return TQDropEvent::Private; +} +static +int qtaction_to_xdndaction(TQDropEvent::Action a) +{ + switch ( a ) { + case TQDropEvent::Copy: + return qt_xdnd_action_copy; + case TQDropEvent::Link: + return qt_xdnd_action_link; + case TQDropEvent::Move: + return qt_xdnd_action_move; + case TQDropEvent::Private: + return qt_xdnd_action_private; + default: + return qt_xdnd_action_copy; + } +} + +// clean up the stuff used. +static void qt_xdnd_cleanup(); + +static void qt_xdnd_send_leave(); + +// XDND selection +Atom qt_xdnd_selection; +// other selection +static Atom qt_selection_property; +// INCR +static Atom qt_incr_atom; + +// properties for XDND drop sites +Atom qt_xdnd_aware; +Atom qt_xdnd_proxy; + +// real variables: +// xid of current drag source +static Atom qt_xdnd_dragsource_xid = 0; + +// the types in this drop. 100 is no good, but at least it's big. +const int qt_xdnd_max_type = 100; +static Atom qt_xdnd_types[qt_xdnd_max_type]; + +static TQIntDict * qt_xdnd_drag_types = 0; +static TQDict * qt_xdnd_atom_numbers = 0; + +// timer used when target wants "continuous" move messages (eg. scroll) +static int heartbeat = -1; +// rectangle in which the answer will be the same +static TQRect qt_xdnd_source_sameanswer; +//static TQRect qt_xdnd_target_sameanswer; +static bool qt_xdnd_target_answerwas; +// top-level window we sent position to last. +static Window qt_xdnd_current_target; +// window to send events to (always valid if qt_xdnd_current_target) +static Window qt_xdnd_current_proxy_target; +// widget we forwarded position to last, and local position +static TQGuardedPtr qt_xdnd_current_widget; +static TQPoint qt_xdnd_current_position; +// time of this drop, as type Atom to save on casts +static Atom qt_xdnd_source_current_time; +// timestamp from the XdndPosition and XdndDrop +static Time qt_xdnd_target_current_time; +// screen number containing the pointer... -1 means default +static int qt_xdnd_current_screen = -1; +// state of dragging... true if dragging, false if not +bool qt_xdnd_dragging = false; +// need to check state of keyboard modifiers +static bool need_modifiers_check = false; + +// dict of payload data, sorted by type atom +static TQIntDict * qt_xdnd_target_data = 0; + +// first drag object, or 0 +static TQDragObject * qt_xdnd_source_object = 0; + +// Motif dnd +extern void qt_motifdnd_enable( TQWidget *, bool ); +extern TQByteArray qt_motifdnd_obtain_data( const char *format ); +extern const char *qt_motifdnd_format( int n ); + +bool qt_motifdnd_active = false; +static bool dndCancelled = false; + +// Shift/Ctrl handling, and final drop status +static TQDragObject::DragMode drag_mode; +static TQDropEvent::Action global_requested_action = TQDropEvent::Copy; +static TQDropEvent::Action global_accepted_action = TQDropEvent::Copy; + +// for embedding only +static TQWidget* current_embedding_widget = 0; +static XEvent last_enter_event; + +// cursors +static TQCursor *noDropCursor = 0; +static TQCursor *moveCursor = 0; +static TQCursor *copyCursor = 0; +static TQCursor *linkCursor = 0; + +static TQPixmap *defaultPm = 0; + +static const int default_pm_hotx = -2; +static const int default_pm_hoty = -16; +static const char* const default_pm[] = { +"13 9 3 1", +". c None", +" c #000000", +"X c #FFFFFF", +"X X X X X X X", +" X X X X X X ", +"X ......... X", +" X.........X ", +"X ......... X", +" X.........X ", +"X ......... X", +" X X X X X X ", +"X X X X X X X" +}; + +class TQShapedPixmapWidget : public TQWidget { + +public: + TQShapedPixmapWidget(int screen = -1) : + TQWidget(TQApplication::desktop()->screen( screen ), + 0, WStyle_Customize | WStyle_Tool | WStyle_NoBorder | WX11BypassWM ), oldpmser( 0 ), oldbmser( 0 ) + { + x11SetWindowType( X11WindowTypeDND ); + } + + void setPixmap(TQPixmap pm, TQPoint hot) + { + int bmser = pm.mask() ? pm.mask()->serialNumber() : 0; + if( oldpmser == pm.serialNumber() && oldbmser == bmser + && oldhot == hot ) + return; + oldpmser = pm.serialNumber(); + oldbmser = bmser; + oldhot = hot; + bool hotspot_in = !(hot.x() < 0 || hot.y() < 0 || hot.x() >= pm.width() || hot.y() >= pm.height()); +// if the pixmap has hotspot in its area, make a "hole" in it at that position +// this will allow XTranslateCoordinates() to find directly the window below the cursor instead +// of finding this pixmap, and therefore there won't be needed any (slow) search for the window +// using findRealWindow() + if( hotspot_in ) { + TQBitmap mask = pm.mask() ? *pm.mask() : TQBitmap( pm.width(), pm.height()); + if( !pm.mask()) + mask.fill( TQt::color1 ); + TQPainter p( &mask ); + p.setPen( TQt::color0 ); + p.drawPoint( hot.x(), hot.y()); + p.end(); + pm.setMask( mask ); + setMask( mask ); + } else if ( pm.mask() ) { + setMask( *pm.mask() ); + } else { + clearMask(); + } + resize(pm.width(),pm.height()); + setErasePixmap(pm); + erase(); + } +private: + int oldpmser; + int oldbmser; + TQPoint oldhot; +}; + +static TQShapedPixmapWidget * qt_xdnd_deco = 0; + +static TQWidget* desktop_proxy = 0; + +class TQExtraWidget : public TQWidget +{ +public: + TQWExtra* extraData() { return TQWidget::extraData(); } + TQTLWExtra* topData() { return TQWidget::topData(); } +}; + + +static bool qt_xdnd_enable( TQWidget* w, bool on ) +{ + if ( on ) { + TQWidget * xdnd_widget = 0; + if ( w->isDesktop() ) { + if ( desktop_proxy ) // *WE* already have one. + return false; + + // As per Xdnd4, use XdndProxy + XGrabServer( w->x11Display() ); + Atom type = None; + int f; + unsigned long n, a; + WId *proxy_id_ptr; + XGetWindowProperty( w->x11Display(), w->winId(), + qt_xdnd_proxy, 0, 1, False, + XA_WINDOW, &type, &f,&n,&a,(uchar**)&proxy_id_ptr ); + WId proxy_id = 0; + if ( type == XA_WINDOW && proxy_id_ptr ) { + proxy_id = *proxy_id_ptr; + XFree(proxy_id_ptr); + proxy_id_ptr = 0; + // Already exists. Real? + qt_ignore_badwindow(); + XGetWindowProperty( w->x11Display(), proxy_id, + qt_xdnd_proxy, 0, 1, False, + XA_WINDOW, &type, &f,&n,&a,(uchar**)&proxy_id_ptr ); + if ( qt_badwindow() || type != XA_WINDOW || !proxy_id_ptr || *proxy_id_ptr != proxy_id ) { + // Bogus - we will overwrite. + proxy_id = 0; + } + } + if ( proxy_id_ptr ) + XFree(proxy_id_ptr); + + if ( !proxy_id ) { + xdnd_widget = desktop_proxy = new TQWidget; + proxy_id = desktop_proxy->winId(); + XChangeProperty ( w->x11Display(), + w->winId(), qt_xdnd_proxy, + XA_WINDOW, 32, PropModeReplace, + (unsigned char *)&proxy_id, 1 ); + XChangeProperty ( w->x11Display(), + proxy_id, qt_xdnd_proxy, + XA_WINDOW, 32, PropModeReplace, + (unsigned char *)&proxy_id, 1 ); + } + + XUngrabServer( w->x11Display() ); + } else { + xdnd_widget = w->topLevelWidget(); + } + if ( xdnd_widget ) { + Atom atm = (Atom)qt_xdnd_version; + XChangeProperty ( xdnd_widget->x11Display(), xdnd_widget->winId(), + qt_xdnd_aware, XA_ATOM, 32, PropModeReplace, + (unsigned char *)&atm, 1 ); + return true; + } else { + return false; + } + } else { + if ( w->isDesktop() ) { + XDeleteProperty( w->x11Display(), w->winId(), + qt_xdnd_proxy ); + delete desktop_proxy; + desktop_proxy = 0; + } + return true; + } +} + +const char* qt_xdnd_atom_to_str( Atom a ) +{ + if ( !a ) return 0; + + if ( a == XA_STRING ) + return "text/plain"; // some Xdnd clients are dumb + + if ( !qt_xdnd_drag_types ) { + qt_xdnd_drag_types = new TQIntDict( 17 ); + qt_xdnd_drag_types->setAutoDelete( true ); + } + TQCString* result; + if ( !(result=qt_xdnd_drag_types->find( a )) ) { + const char* mimeType = XGetAtomName( TQPaintDevice::x11AppDisplay(), a ); + if ( !mimeType ) + return 0; // only happens on protocol error + result = new TQCString( mimeType ); + qt_xdnd_drag_types->insert( (long)a, result ); + XFree((void*)mimeType); + } + return *result; +} + +Atom* qt_xdnd_str_to_atom( const char *mimeType ) +{ + if ( !mimeType || !*mimeType ) + return 0; + if ( !qt_xdnd_atom_numbers ) { + qt_xdnd_atom_numbers = new TQDict( 17 ); + qt_xdnd_atom_numbers->setAutoDelete( true ); + } + + Atom * result; + if ( (result = qt_xdnd_atom_numbers->find( mimeType )) ) + return result; + + result = new Atom; + *result = 0; + qt_x11_intern_atom( mimeType, result ); + qt_xdnd_atom_numbers->insert( mimeType, result ); + qt_xdnd_atom_to_str( *result ); + + return result; +} + + +void qt_xdnd_setup() { + // set up protocol atoms + qt_x11_intern_atom( "XdndEnter", &qt_xdnd_enter ); + qt_x11_intern_atom( "XdndPosition", &qt_xdnd_position ); + qt_x11_intern_atom( "XdndStatus", &qt_xdnd_status ); + qt_x11_intern_atom( "XdndLeave", &qt_xdnd_leave ); + qt_x11_intern_atom( "XdndDrop", &qt_xdnd_drop ); + qt_x11_intern_atom( "XdndFinished", &qt_xdnd_finished ); + qt_x11_intern_atom( "XdndTypeList", &qt_xdnd_type_list ); + + qt_x11_intern_atom( "XdndSelection", &qt_xdnd_selection ); + + qt_x11_intern_atom( "XdndAware", &qt_xdnd_aware ); + qt_x11_intern_atom( "XdndProxy", &qt_xdnd_proxy ); + + + qt_x11_intern_atom( "XdndActionCopy", &qt_xdnd_action_copy ); + qt_x11_intern_atom( "XdndActionLink", &qt_xdnd_action_link ); + qt_x11_intern_atom( "XdndActionMove", &qt_xdnd_action_move ); + qt_x11_intern_atom( "XdndActionPrivate", &qt_xdnd_action_private ); + + qt_x11_intern_atom( "QT_SELECTION", &qt_selection_property ); + qt_x11_intern_atom( "INCR", &qt_incr_atom ); + + tqAddPostRoutine( qt_xdnd_cleanup ); +} + + +void qt_xdnd_cleanup() +{ + delete qt_xdnd_drag_types; + qt_xdnd_drag_types = 0; + delete qt_xdnd_atom_numbers; + qt_xdnd_atom_numbers = 0; + delete qt_xdnd_target_data; + qt_xdnd_target_data = 0; + delete noDropCursor; + noDropCursor = 0; + delete copyCursor; + copyCursor = 0; + delete moveCursor; + moveCursor = 0; + delete linkCursor; + linkCursor = 0; + delete defaultPm; + defaultPm = 0; + delete desktop_proxy; + desktop_proxy = 0; +} + + +static TQWidget * find_child( TQWidget * tlw, TQPoint & p ) +{ + TQWidget * w = tlw; + + p = w->mapFromGlobal( p ); + bool done = false; + while ( !done ) { + done = true; + if ( ((TQExtraWidget*)w)->extraData() && + ((TQExtraWidget*)w)->extraData()->xDndProxy != 0 ) + break; // stop searching for widgets under the mouse cursor if found widget is a proxy. + if ( w->children() ) { + TQObjectListIt it( *w->children() ); + it.toLast(); + TQObject * o; + while( (o=it.current()) ) { + --it; + if ( o->isWidgetType() && + ((TQWidget*)o)->isVisible() && + ((TQWidget*)o)->geometry().contains( p ) && + !((TQWidget*)o)->isTopLevel()) { + w = (TQWidget *)o; + done = false; + p = w->mapFromParent( p ); + break; + } + } + } + } + return w; +} + + +static bool checkEmbedded(TQWidget* w, const XEvent* xe) +{ + if (!w) + return false; + + if (current_embedding_widget != 0 && current_embedding_widget != w) { + qt_xdnd_current_target = ((TQExtraWidget*)current_embedding_widget)->extraData()->xDndProxy; + qt_xdnd_current_proxy_target = qt_xdnd_current_target; + qt_xdnd_send_leave(); + qt_xdnd_current_target = 0; + qt_xdnd_current_proxy_target = 0; + current_embedding_widget = 0; + } + + TQWExtra* extra = ((TQExtraWidget*)w)->extraData(); + if ( extra && extra->xDndProxy != 0 ) { + + if (current_embedding_widget != w) { + + last_enter_event.xany.window = extra->xDndProxy; + XSendEvent( TQPaintDevice::x11AppDisplay(), extra->xDndProxy, False, NoEventMask, + &last_enter_event ); + current_embedding_widget = w; + } + + ((XEvent*)xe)->xany.window = extra->xDndProxy; + XSendEvent( TQPaintDevice::x11AppDisplay(), extra->xDndProxy, False, NoEventMask, + (XEvent*)xe ); + qt_xdnd_current_widget = w; + return true; + } + current_embedding_widget = 0; + return false; +} + +void qt_handle_xdnd_enter( TQWidget *, const XEvent * xe, bool /*passive*/ ) +{ + //if ( !w->neveHadAChildWithDropEventsOn() ) + //return; // haven't been set up for dnd + + qt_motifdnd_active = false; + + last_enter_event.xclient = xe->xclient; + + qt_xdnd_target_answerwas = false; + + const long *l = xe->xclient.data.l; + int version = (int)(((unsigned long)(l[1])) >> 24); + + if ( version > qt_xdnd_version ) + return; + + qt_xdnd_dragsource_xid = l[0]; + + int j = 0; + if ( l[1] & 1 ) { + // get the types from XdndTypeList + Atom type = None; + int f; + unsigned long n, a; + Atom *data; + XGetWindowProperty( TQPaintDevice::x11AppDisplay(), qt_xdnd_dragsource_xid, + qt_xdnd_type_list, 0, + qt_xdnd_max_type, False, XA_ATOM, &type, &f,&n,&a,(uchar**)&data ); + for ( ; jxclient.data.l; + + TQPoint p( (l[2] & 0xffff0000) >> 16, l[2] & 0x0000ffff ); + TQWidget * c = find_child( w, p ); // changes p to to c-local coordinates + + if (!passive && checkEmbedded(c, xe)) + return; + + if ( !c || ( !c->acceptDrops() && c->isDesktop() ) ) { + return; + } + + if ( l[0] != qt_xdnd_dragsource_xid ) { + //tqDebug( "xdnd drag position from unexpected source (%08lx not %08lx)", + // l[0], qt_xdnd_dragsource_xid ); + return; + } + + if (l[3] != 0) { + // timestamp from the source + qt_xdnd_target_current_time = tqt_x_user_time = l[3]; + } + + XClientMessageEvent response; + response.type = ClientMessage; + response.window = qt_xdnd_dragsource_xid; + response.format = 32; + response.message_type = qt_xdnd_status; + response.data.l[0] = w->winId(); + response.data.l[1] = 0; // flags + response.data.l[2] = 0; // x, y + response.data.l[3] = 0; // w, h + response.data.l[4] = 0; // action + + if ( !passive ) { // otherwise just reject + while ( c && !c->acceptDrops() && !c->isTopLevel() ) { + p = c->mapToParent( p ); + c = c->parentWidget(); + } + + TQRect answerRect( c->mapToGlobal( p ), TQSize( 1,1 ) ); + + TQDragMoveEvent me( p ); + TQDropEvent::Action accepted_action = xdndaction_to_qtaction(l[4]); + me.setAction(accepted_action); + + if ( c != qt_xdnd_current_widget ) { + qt_xdnd_target_answerwas = false; + if ( qt_xdnd_current_widget ) { + TQDragLeaveEvent e; + TQApplication::sendEvent( qt_xdnd_current_widget, &e ); + } + if ( c->acceptDrops() ) { + qt_xdnd_current_widget = c; + qt_xdnd_current_position = p; + + TQDragEnterEvent de( p ); + de.setAction(accepted_action); + TQApplication::sendEvent( c, &de ); + if ( de.isAccepted() ) { + me.accept( de.answerRect() ); + if ( !de.isActionAccepted() ) // only as a copy (move if we del) + accepted_action = TQDropEvent::Copy; + else + me.acceptAction(true); + } else { + me.ignore( de.answerRect() ); + } + } + } else { + if ( qt_xdnd_target_answerwas ) { + me.accept(); + me.acceptAction(global_requested_action == global_accepted_action); + } + } + + if ( !c->acceptDrops() ) { + qt_xdnd_current_widget = 0; + answerRect = TQRect( p, TQSize( 1, 1 ) ); + } else if ( xdndaction_to_qtaction(l[4]) < TQDropEvent::Private ) { + qt_xdnd_current_widget = c; + qt_xdnd_current_position = p; + + TQApplication::sendEvent( c, &me ); + qt_xdnd_target_answerwas = me.isAccepted(); + if ( me.isAccepted() ) { + response.data.l[1] = 1; // yes + if ( !me.isActionAccepted() ) // only as a copy (move if we del) + accepted_action = TQDropEvent::Copy; + } else { + response.data.l[0] = 0; + } + answerRect = me.answerRect().intersect( c->rect() ); + } else { + response.data.l[0] = 0; + answerRect = TQRect( p, TQSize( 1, 1 ) ); + } + answerRect = TQRect( c->mapToGlobal( answerRect.topLeft() ), + answerRect.size() ); + + if ( answerRect.left() < 0 ) + answerRect.setLeft( 0 ); + if ( answerRect.right() > 4096 ) + answerRect.setRight( 4096 ); + if ( answerRect.top() < 0 ) + answerRect.setTop( 0 ); + if ( answerRect.bottom() > 4096 ) + answerRect.setBottom( 4096 ); + if ( answerRect.width() < 0 ) + answerRect.setWidth( 0 ); + if ( answerRect.height() < 0 ) + answerRect.setHeight( 0 ); + + response.data.l[2] = (answerRect.x() << 16) + answerRect.y(); + response.data.l[3] = (answerRect.width() << 16) + answerRect.height(); + response.data.l[4] = qtaction_to_xdndaction(accepted_action); + global_accepted_action = accepted_action; + } + + // reset + qt_xdnd_target_current_time = CurrentTime; + + TQWidget * source = TQWidget::find( qt_xdnd_dragsource_xid ); + + if ( source && source->isDesktop() && !source->acceptDrops() ) + source = 0; + + if ( source ) + qt_handle_xdnd_status( source, (const XEvent *)&response, passive ); + else + XSendEvent( TQPaintDevice::x11AppDisplay(), qt_xdnd_dragsource_xid, False, + NoEventMask, (XEvent*)&response ); +} + + +void qt_handle_xdnd_status( TQWidget * w, const XEvent * xe, bool /*passive*/ ) +{ + const unsigned long *l = (const unsigned long *)xe->xclient.data.l; + // Messy: TQDragResponseEvent is just a call to TQDragManager function + global_accepted_action = xdndaction_to_qtaction(l[4]); + TQDragResponseEvent e( (int)(l[1] & 1) ); + TQApplication::sendEvent( w, &e ); + + if ( (int)(l[1] & 2) == 0 ) { + TQPoint p( (l[2] & 0xffff0000) >> 16, l[2] & 0x0000ffff ); + TQSize s( (l[3] & 0xffff0000) >> 16, l[3] & 0x0000ffff ); + qt_xdnd_source_sameanswer = TQRect( p, s ); + if ( qt_xdnd_source_sameanswer.isNull() ) { + // Application wants "coninutous" move events + } + } else { + qt_xdnd_source_sameanswer = TQRect(); + } +} + + +void qt_handle_xdnd_leave( TQWidget *w, const XEvent * xe, bool /*passive*/ ) +{ + //tqDebug( "xdnd leave" ); + if ( !qt_xdnd_current_widget || + w->topLevelWidget() != qt_xdnd_current_widget->topLevelWidget() ) { + return; // sanity + } + + if (checkEmbedded(current_embedding_widget, xe)) { + current_embedding_widget = 0; + qt_xdnd_current_widget = 0; + return; + } + + const unsigned long *l = (const unsigned long *)xe->xclient.data.l; + + TQDragLeaveEvent e; + TQApplication::sendEvent( qt_xdnd_current_widget, &e ); + + if ( l[0] != qt_xdnd_dragsource_xid ) { + // This often happens - leave other-process window quickly + //tqDebug( "xdnd drag leave from unexpected source (%08lx not %08lx", + //l[0], qt_xdnd_dragsource_xid ); + qt_xdnd_current_widget = 0; + return; + } + + qt_xdnd_dragsource_xid = 0; + qt_xdnd_types[0] = 0; + qt_xdnd_current_widget = 0; +} + + +void qt_xdnd_send_leave() +{ + if ( !qt_xdnd_current_target ) + return; + + XClientMessageEvent leave; + leave.type = ClientMessage; + leave.window = qt_xdnd_current_target; + leave.format = 32; + leave.message_type = qt_xdnd_leave; + leave.data.l[0] = qt_xdnd_dragsource_xid; + leave.data.l[1] = 0; // flags + leave.data.l[2] = 0; // x, y + leave.data.l[3] = 0; // w, h + leave.data.l[4] = 0; // just null + + TQWidget * w = TQWidget::find( qt_xdnd_current_proxy_target ); + + if ( w && w->isDesktop() && !w->acceptDrops() ) + w = 0; + + if ( w ) + qt_handle_xdnd_leave( w, (const XEvent *)&leave, false ); + else + XSendEvent( TQPaintDevice::x11AppDisplay(), qt_xdnd_current_proxy_target, False, + NoEventMask, (XEvent*)&leave ); + qt_xdnd_current_target = 0; + qt_xdnd_current_proxy_target = 0; +} + + + +void qt_handle_xdnd_drop( TQWidget *, const XEvent * xe, bool passive ) +{ + if ( !qt_xdnd_current_widget ) { + qt_xdnd_dragsource_xid = 0; + return; // sanity + } + + if (!passive && checkEmbedded(qt_xdnd_current_widget, xe)){ + current_embedding_widget = 0; + qt_xdnd_dragsource_xid = 0; + qt_xdnd_current_widget = 0; + return; + } + const unsigned long *l = (const unsigned long *)xe->xclient.data.l; + + //tqDebug( "xdnd drop" ); + + if ( l[0] != qt_xdnd_dragsource_xid ) { + //tqDebug( "xdnd drop from unexpected source (%08lx not %08lx", + // l[0], qt_xdnd_dragsource_xid ); + return; + } + + if (l[2] != 0) { + // update the "user time" from the timestamp in the event. + qt_xdnd_target_current_time = tqt_x_user_time = l[2]; + } + + if ( qt_xdnd_source_object ) + qt_xdnd_source_object->setTarget( qt_xdnd_current_widget ); + + if ( !passive ) { + TQDropEvent de( qt_xdnd_current_position ); + de.setAction( global_accepted_action ); + TQApplication::sendEvent( qt_xdnd_current_widget, &de ); + if ( !de.isAccepted() ) { + // Ignore a failed drag + global_accepted_action = TQDropEvent::Copy; + dndCancelled = true; + } + XClientMessageEvent finished; + finished.type = ClientMessage; + finished.window = qt_xdnd_dragsource_xid; + finished.format = 32; + finished.message_type = qt_xdnd_finished; + finished.data.l[0] = qt_xdnd_current_widget?qt_xdnd_current_widget->topLevelWidget()->winId():0; + finished.data.l[1] = 0; // flags + XSendEvent( TQPaintDevice::x11AppDisplay(), qt_xdnd_dragsource_xid, False, + NoEventMask, (XEvent*)&finished ); + } else { + TQDragLeaveEvent e; + TQApplication::sendEvent( qt_xdnd_current_widget, &e ); + } + qt_xdnd_dragsource_xid = 0; + qt_xdnd_current_widget = 0; + + // reset + qt_xdnd_target_current_time = CurrentTime; +} + + +void qt_handle_xdnd_finished( TQWidget *, const XEvent * xe, bool passive ) +{ + const unsigned long *l = (const unsigned long *)xe->xclient.data.l; + + if ( l[0] && (l[0] == qt_xdnd_current_target + || l[0] == qt_xdnd_current_proxy_target) ) { + // + if ( !passive ) + (void ) checkEmbedded( qt_xdnd_current_widget, xe); + current_embedding_widget = 0; + qt_xdnd_current_target = 0; + qt_xdnd_current_proxy_target = 0; + delete qt_xdnd_source_object; + qt_xdnd_source_object = 0; + } +} + + +void TQDragManager::timerEvent( TQTimerEvent* e ) +{ + if ( e->timerId() == heartbeat ) { + if( need_modifiers_check ) { + Window root, child; + int root_x, root_y, win_x, win_y; + unsigned int mask; + XQueryPointer( tqt_xdisplay(), tqt_xrootwin( qt_xdnd_current_screen ), + &root, &child, &root_x, &root_y, &win_x, &win_y, &mask ); + if( updateMode( (ButtonState)qt_x11_translateButtonState( mask ))) + qt_xdnd_source_sameanswer = TQRect(); // force move + } + need_modifiers_check = true; + if( qt_xdnd_source_sameanswer.isNull() ) + move( TQCursor::pos() ); + } +} + +static bool qt_xdnd_was_move = false; +static bool qt_xdnd_found = false; +// check whole incoming X queue for move events +// checking whole queue is done by always returning False in the predicate +// if there's another move event in the queue, and there's not a mouse button +// or keyboard or ClientMessage event before it, the current move event +// may be safely discarded +// this helps avoiding being overloaded by being flooded from many events +// from the XServer +static +Bool qt_xdnd_predicate( Display*, XEvent* ev, XPointer ) +{ + if( qt_xdnd_found ) + return False; + if( ev->type == MotionNotify ) + { + qt_xdnd_was_move = true; + qt_xdnd_found = true; + } + if( ev->type == ButtonPress || ev->type == ButtonRelease + || ev->type == XKeyPress || ev->type == XKeyRelease + || ev->type == ClientMessage ) + { + qt_xdnd_was_move = false; + qt_xdnd_found = true; + } + return False; +} + +static +bool qt_xdnd_another_movement() +{ + qt_xdnd_was_move = false; + qt_xdnd_found = false; + XEvent dummy; + XCheckIfEvent( tqt_xdisplay(), &dummy, qt_xdnd_predicate, NULL ); + return qt_xdnd_was_move; +} + +bool TQDragManager::eventFilter( TQObject * o, TQEvent * e) +{ + if ( beingCancelled ) { + if ( e->type() == TQEvent::KeyRelease && + ((TQKeyEvent*)e)->key() == Key_Escape ) { + tqApp->removeEventFilter( this ); + object = 0; + dragSource = 0; + beingCancelled = false; + tqApp->exit_loop(); + return true; // block the key release + } + return false; + } + + Q_ASSERT( object != 0 ); + + if ( !o->isWidgetType() ) + return false; + + if ( e->type() == TQEvent::MouseMove ) { + TQMouseEvent* me = (TQMouseEvent *)e; + if( !qt_xdnd_another_movement()) { + updateMode(me->stateAfter()); + move( me->globalPos() ); + } + need_modifiers_check = false; + return true; + } else if ( e->type() == TQEvent::MouseButtonRelease ) { + tqApp->removeEventFilter( this ); + if ( willDrop ) + drop(); + else + cancel(); + object = 0; + dragSource = 0; + beingCancelled = false; + tqApp->exit_loop(); + return true; + } else if ( e->type() == TQEvent::DragResponse ) { + if ( ((TQDragResponseEvent *)e)->dragAccepted() ) { + if ( !willDrop ) { + willDrop = true; + } + } else { + if ( willDrop ) { + willDrop = false; + } + } + updateCursor(); + return true; + } + + if ( e->type() == TQEvent::KeyPress + || e->type() == TQEvent::KeyRelease ) + { + TQKeyEvent *ke = ((TQKeyEvent*)e); + if ( ke->key() == Key_Escape && e->type() == TQEvent::KeyPress ) { + cancel(); + tqApp->removeEventFilter( this ); + object = 0; + dragSource = 0; + beingCancelled = false; + tqApp->exit_loop(); + } else { + if( updateMode(ke->stateAfter())) { + qt_xdnd_source_sameanswer = TQRect(); // force move + move( TQCursor::pos() ); + } + need_modifiers_check = false; + } + return true; // Eat all key events + } + + // ### We bind modality to widgets, so we have to do this + // ### "manually". + // DnD is modal - eat all other interactive events + switch ( e->type() ) { + case TQEvent::MouseButtonPress: + case TQEvent::MouseButtonRelease: + case TQEvent::MouseButtonDblClick: + case TQEvent::MouseMove: + case TQEvent::KeyPress: + case TQEvent::KeyRelease: + case TQEvent::Wheel: + case TQEvent::Accel: + case TQEvent::AccelAvailable: + case TQEvent::AccelOverride: + return true; + default: + return false; + } +} + + +static TQt::ButtonState oldstate; +bool TQDragManager::updateMode( ButtonState newstate ) +{ + if ( newstate == oldstate ) + return false; + const int both = ShiftButton|ControlButton; + if ( (newstate & both) == both ) { + global_requested_action = TQDropEvent::Link; + } else { + bool local = qt_xdnd_source_object != 0; + if ( drag_mode == TQDragObject::DragMove ) + global_requested_action = TQDropEvent::Move; + else if ( drag_mode == TQDragObject::DragCopy ) + global_requested_action = TQDropEvent::Copy; + else if ( drag_mode == TQDragObject::DragLink ) + global_requested_action = TQDropEvent::Link; + else { + if ( drag_mode == TQDragObject::DragDefault && local ) + global_requested_action = TQDropEvent::Move; + else + global_requested_action = TQDropEvent::Copy; + if ( newstate & ShiftButton ) + global_requested_action = TQDropEvent::Move; + else if ( newstate & ControlButton ) + global_requested_action = TQDropEvent::Copy; + } + } + oldstate = newstate; + return true; +} + + +void TQDragManager::createCursors() +{ + if ( !noDropCursor ) { + noDropCursor = new TQCursor( ForbiddenCursor ); + if ( !pm_cursor[0].isNull() ) + moveCursor = new TQCursor(pm_cursor[0], 0,0); + if ( !pm_cursor[1].isNull() ) + copyCursor = new TQCursor(pm_cursor[1], 0,0); + if ( !pm_cursor[2].isNull() ) + linkCursor = new TQCursor(pm_cursor[2], 0,0); + } +} + +void TQDragManager::updateCursor() +{ + TQCursor *c; + if ( willDrop ) { + if ( global_accepted_action == TQDropEvent::Copy ) { + if ( global_requested_action == TQDropEvent::Move ) + c = moveCursor; // (source can delete) + else + c = copyCursor; + } else if ( global_accepted_action == TQDropEvent::Link ) { + c = linkCursor; + } else { + c = moveCursor; + } + if ( qt_xdnd_deco ) { + qt_xdnd_deco->show(); + qt_xdnd_deco->raise(); + } + } else { + c = noDropCursor; + //if ( qt_xdnd_deco ) + // qt_xdnd_deco->hide(); + } +#ifndef TQT_NO_CURSOR + if ( c ) + tqApp->setOverrideCursor( *c, true ); +#endif +} + + +void TQDragManager::cancel( bool deleteSource ) +{ + killTimer( heartbeat ); + heartbeat = -1; + if ( object ) { + beingCancelled = true; + object = 0; + } + + if ( qt_xdnd_current_target ) { + qt_xdnd_send_leave(); + } + +#ifndef TQT_NO_CURSOR + if ( restoreCursor ) { + TQApplication::restoreOverrideCursor(); + restoreCursor = false; + } +#endif + + if ( deleteSource ) + delete qt_xdnd_source_object; + qt_xdnd_source_object = 0; + delete qt_xdnd_deco; + qt_xdnd_deco = 0; + + dndCancelled = true; +} + +static +Window findRealWindow( const TQPoint & pos, Window w, int md ) +{ + if ( qt_xdnd_deco && w == qt_xdnd_deco->winId() ) + return 0; + + if ( md ) { + qt_ignore_badwindow(); + XWindowAttributes attr; + XGetWindowAttributes( TQPaintDevice::x11AppDisplay(), w, &attr ); + if (qt_badwindow()) + return 0; + + if ( attr.map_state == IsViewable + && TQRect(attr.x,attr.y,attr.width,attr.height) + .contains(pos) ) + { + { + Atom type = None; + int f; + unsigned long n, a; + unsigned char *data; + + XGetWindowProperty( TQPaintDevice::x11AppDisplay(), w, qt_xdnd_aware, 0, + 0, False, AnyPropertyType, &type, &f,&n,&a,&data ); + if ( data ) XFree(data); + if ( type ) return w; + } + + Window r, p; + Window* c; + uint nc; + if ( XQueryTree( TQPaintDevice::x11AppDisplay(), w, &r, &p, &c, &nc ) ) { + r=0; + for (uint i=nc; !r && i--; ) { + r = findRealWindow( pos-TQPoint(attr.x,attr.y), + c[i], md-1 ); + } + XFree(c); + if ( r ) + return r; + + // We didn't find a client window! Just use the + // innermost window. + } + + // No children! + return w; + } + } + return 0; +} + +void TQDragManager::move( const TQPoint & globalPos ) +{ + if (!object || !object->source()) { + // perhaps the target crashed? + return; + } + + int screen = TQCursor::x11Screen(); + if ( ( qt_xdnd_current_screen == -1 && screen != TQPaintDevice::x11AppScreen() ) || + ( screen != qt_xdnd_current_screen ) ) { + // recreate the pixmap on the new screen... + delete qt_xdnd_deco; + qt_xdnd_deco = new TQShapedPixmapWidget( screen ); + qt_xdnd_deco->x11SetWindowTransient( dragSource->topLevelWidget()); + if (!TQWidget::mouseGrabber()) { + updatePixmap(); + qt_xdnd_deco->grabMouse(); + } + } + updatePixmap( globalPos ); + + if ( qt_xdnd_source_sameanswer.contains( globalPos ) && + qt_xdnd_source_sameanswer.isValid() ) { + return; + } + + qt_xdnd_current_screen = screen; + Window rootwin = TQPaintDevice::x11AppRootWindow( qt_xdnd_current_screen ); + Window target = 0; + int lx = 0, ly = 0; + if ( !XTranslateCoordinates( TQPaintDevice::x11AppDisplay(), rootwin, rootwin, + globalPos.x(), globalPos.y(), + &lx, &ly, &target) ) + // some wierd error... + return; + + if ( target == rootwin ) { + // Ok. + } else if ( target ) { + //me + Window src = rootwin; + while (target != 0) { + int lx2, ly2; + Window t; + // translate coordinates + if (!XTranslateCoordinates(TQPaintDevice::x11AppDisplay(), src, target, + lx, ly, &lx2, &ly2, &t)) { + target = 0; + break; + } + lx = lx2; + ly = ly2; + src = target; + + // check if it has XdndAware + Atom type = None; + int f; + unsigned long n, a; + unsigned char *data = 0; + XGetWindowProperty(TQPaintDevice::x11AppDisplay(), target, qt_xdnd_aware, 0, 0, False, + AnyPropertyType, &type, &f,&n,&a,&data); + if (data) + XFree(data); + if (type) + break; + + // find child at the coordinates + if (!XTranslateCoordinates( TQPaintDevice::x11AppDisplay(), src, src, + lx, ly, &lx2, &ly2, &target)) { + target = 0; + break; + } + } + if ( qt_xdnd_deco && (!target || target == qt_xdnd_deco->winId()) ) { + target = findRealWindow(globalPos,rootwin,6); + } + } + + TQWidget* w; + if ( target ) { + w = TQWidget::find( (WId)target ); + if ( w && w->isDesktop() && !w->acceptDrops() ) + w = 0; + } else { + w = 0; + target = rootwin; + } + + WId proxy_target = target; + int target_version = 1; + + { + Atom type = None; + int r, f; + unsigned long n, a; + WId *proxy_id; + qt_ignore_badwindow(); + r = XGetWindowProperty( tqt_xdisplay(), target, qt_xdnd_proxy, 0, + 1, False, XA_WINDOW, &type, &f,&n,&a,(uchar**)&proxy_id ); + if ( ( r != Success ) || qt_badwindow() ) { + proxy_target = target = 0; + } else if ( type == XA_WINDOW && proxy_id ) { + proxy_target = *proxy_id; + XFree(proxy_id); + proxy_id = 0; + r = XGetWindowProperty( tqt_xdisplay(), proxy_target, qt_xdnd_proxy, 0, + 1, False, XA_WINDOW, &type, &f,&n,&a,(uchar**)&proxy_id ); + if ( ( r != Success ) || qt_badwindow() || !type || !proxy_id || *proxy_id != proxy_target ) { + // Bogus + proxy_target = 0; + target = 0; + } + if ( proxy_id ) + XFree(proxy_id); + } + if ( proxy_target ) { + int *tv; + qt_ignore_badwindow(); + r = XGetWindowProperty( tqt_xdisplay(), proxy_target, qt_xdnd_aware, 0, + 1, False, AnyPropertyType, &type, &f,&n,&a,(uchar**)&tv ); + if ( r != Success ) { + target = 0; + } else { + target_version = TQMIN(qt_xdnd_version,tv ? *tv : 1); + if ( tv ) + XFree( tv ); + if (!(!qt_badwindow() && type)) + target = 0; + } + } + } + + if ( target != qt_xdnd_current_target ) { + if ( qt_xdnd_current_target ) + qt_xdnd_send_leave(); + + qt_xdnd_current_target = target; + qt_xdnd_current_proxy_target = proxy_target; + if ( target ) { + TQMemArray type; + int flags = target_version << 24; + const char* fmt; + int nfmt=0; + for (nfmt=0; (fmt=object->format(nfmt)); nfmt++) { + type.resize(nfmt+1); + type[nfmt] = *qt_xdnd_str_to_atom( fmt ); + } + if ( nfmt >= 3 ) { + XChangeProperty( TQPaintDevice::x11AppDisplay(), + object->source()->winId(), qt_xdnd_type_list, + XA_ATOM, 32, PropModeReplace, + (unsigned char *)type.data(), + type.size() ); + flags |= 0x0001; + } + XClientMessageEvent enter; + enter.type = ClientMessage; + enter.window = target; + enter.format = 32; + enter.message_type = qt_xdnd_enter; + enter.data.l[0] = object->source()->winId(); + enter.data.l[1] = flags; + enter.data.l[2] = type.size()>0 ? type[0] : 0; + enter.data.l[3] = type.size()>1 ? type[1] : 0; + enter.data.l[4] = type.size()>2 ? type[2] : 0; + // provisionally set the rectangle to 5x5 pixels... + qt_xdnd_source_sameanswer = TQRect( globalPos.x() - 2, + globalPos.y() -2 , 5, 5 ); + + if ( w ) { + qt_handle_xdnd_enter( w, (const XEvent *)&enter, false ); + } else if ( target ) { + XSendEvent( TQPaintDevice::x11AppDisplay(), proxy_target, False, NoEventMask, + (XEvent*)&enter ); + } + } + } + + if ( target ) { + XClientMessageEvent move; + move.type = ClientMessage; + move.window = target; + move.format = 32; + move.message_type = qt_xdnd_position; + move.window = target; + move.data.l[0] = object->source()->winId(); + move.data.l[1] = 0; // flags + move.data.l[2] = (globalPos.x() << 16) + globalPos.y(); + move.data.l[3] = tqt_x_time; + move.data.l[4] = qtaction_to_xdndaction( global_requested_action ); + + if ( w ) + qt_handle_xdnd_position( w, (const XEvent *)&move, false ); + else + XSendEvent( TQPaintDevice::x11AppDisplay(), proxy_target, False, NoEventMask, + (XEvent*)&move ); + } else { + if ( willDrop ) { + willDrop = false; + updateCursor(); + } + } +} + + +void TQDragManager::drop() +{ + killTimer( heartbeat ); + heartbeat = -1; + if ( !qt_xdnd_current_target ) + return; + + delete qt_xdnd_deco; + qt_xdnd_deco = 0; + + XClientMessageEvent drop; + drop.type = ClientMessage; + drop.window = qt_xdnd_current_target; + drop.format = 32; + drop.message_type = qt_xdnd_drop; + drop.data.l[0] = object->source()->winId(); + drop.data.l[1] = 0; // flags + drop.data.l[2] = tqt_x_time; + drop.data.l[3] = 0; + drop.data.l[4] = 0; + + TQWidget * w = TQWidget::find( qt_xdnd_current_proxy_target ); + + if ( w && w->isDesktop() && !w->acceptDrops() ) + w = 0; + + if ( w ) + qt_handle_xdnd_drop( w, (const XEvent *)&drop, false ); + else + XSendEvent( TQPaintDevice::x11AppDisplay(), qt_xdnd_current_proxy_target, False, + NoEventMask, (XEvent*)&drop ); + +#ifndef TQT_NO_CURSOR + if ( restoreCursor ) { + TQApplication::restoreOverrideCursor(); + restoreCursor = false; + } +#endif +} + + + +bool qt_xdnd_handle_badwindow() +{ + if ( qt_xdnd_source_object && qt_xdnd_current_target ) { + qt_xdnd_current_target = 0; + qt_xdnd_current_proxy_target = 0; + delete qt_xdnd_source_object; + qt_xdnd_source_object = 0; + delete qt_xdnd_deco; + qt_xdnd_deco = 0; + return true; + } + if ( qt_xdnd_dragsource_xid ) { + qt_xdnd_dragsource_xid = 0; + if ( qt_xdnd_current_widget ) { + TQDragLeaveEvent e; + TQApplication::sendEvent( qt_xdnd_current_widget, &e ); + qt_xdnd_current_widget = 0; + } + return true; + } + return false; +} + + +/*! + \class TQDragMoveEvent tqevent.h + \ingroup events + \ingroup draganddrop + \brief The TQDragMoveEvent class provides an event which is sent while a drag and drop is in progress. + + When a widget \link TQWidget::setAcceptDrops() accepts drop + events\endlink, it will receive this event repeatedly while the + drag is within the widget's boundaries. The widget should examine + the event to see what data it \link TQDragMoveEvent::provides() + provides\endlink, and accept() the drop if appropriate. + + Note that this class inherits most of its functionality from + TQDropEvent. +*/ + + +/*! + Returns true if this event provides format \a mimeType; otherwise + returns false. + + \sa data() +*/ + +bool TQDropEvent::provides( const char *mimeType ) const +{ + if ( qt_motifdnd_active && tqstrnicmp( mimeType, "text/", 5 ) == 0 ) + return true; + + int n=0; + const char* f; + do { + f = format( n ); + if ( !f ) + return false; + n++; + } while( tqstricmp( mimeType, f ) ); + return true; +} + +void qt_xdnd_handle_selection_request( const XSelectionRequestEvent * req ) +{ + if ( !req ) + return; + XEvent evt; + evt.xselection.type = SelectionNotify; + evt.xselection.display = req->display; + evt.xselection.requestor = req->requestor; + evt.xselection.selection = req->selection; + evt.xselection.target = req->target; + evt.xselection.property = None; + evt.xselection.time = req->time; + const char* format = qt_xdnd_atom_to_str( req->target ); + if ( format && qt_xdnd_source_object && + qt_xdnd_source_object->provides( format ) ) { + TQByteArray a = qt_xdnd_source_object->encodedData(format); + XChangeProperty ( TQPaintDevice::x11AppDisplay(), req->requestor, req->property, + req->target, 8, PropModeReplace, + (unsigned char *)a.data(), a.size() ); + evt.xselection.property = req->property; + } + // ### this can die if req->requestor crashes at the wrong + // ### moment + XSendEvent( TQPaintDevice::x11AppDisplay(), req->requestor, False, 0, &evt ); +} + +/* + XChangeProperty ( TQPaintDevice::x11AppDisplay(), req->requestor, req->property, + XA_STRING, 8, + PropModeReplace, + (uchar *)d->text(), strlen(d->text()) ); + evt.xselection.property = req->property; +*/ + +static TQByteArray qt_xdnd_obtain_data( const char *format ) +{ + TQByteArray result; + + TQWidget* w; + if ( qt_xdnd_dragsource_xid && qt_xdnd_source_object && + (w=TQWidget::find( qt_xdnd_dragsource_xid )) + && (!w->isDesktop() || w->acceptDrops()) ) + { + TQDragObject * o = qt_xdnd_source_object; + if ( o->provides( format ) ) + result = o->encodedData(format); + return result; + } + + Atom * a = qt_xdnd_str_to_atom( format ); + if ( !a || !*a ) + return result; + + if ( !qt_xdnd_target_data ) + qt_xdnd_target_data = new TQIntDict( 17 ); + + if ( qt_xdnd_target_data->find( (int)*a ) ) { + result = *(qt_xdnd_target_data->find( (int)*a )); + } else { + if ( XGetSelectionOwner( TQPaintDevice::x11AppDisplay(), + qt_xdnd_selection ) == None ) + return result; // should never happen? + + TQWidget* tw = qt_xdnd_current_widget; + if ( !qt_xdnd_current_widget || + qt_xdnd_current_widget->isDesktop() ) { + tw = new TQWidget; + } + XConvertSelection( TQPaintDevice::x11AppDisplay(), + qt_xdnd_selection, + *a, + qt_xdnd_selection, + tw->winId(), + qt_xdnd_target_current_time ); + XFlush( TQPaintDevice::x11AppDisplay() ); + + XEvent xevent; + bool got=qt_xclb_wait_for_event( TQPaintDevice::x11AppDisplay(), + tw->winId(), + SelectionNotify, &xevent, 5000); + if ( got ) { + Atom type; + + if ( qt_xclb_read_property( TQPaintDevice::x11AppDisplay(), + tw->winId(), + qt_xdnd_selection, true, + &result, 0, &type, 0, false ) ) { + if ( type == qt_incr_atom ) { + int nbytes = result.size() >= 4 ? *((int*)result.data()) : 0; + result = qt_xclb_read_incremental_property( TQPaintDevice::x11AppDisplay(), + tw->winId(), + qt_xdnd_selection, + nbytes, false ); + } else if ( type != *a ) { + // (includes None) tqDebug( "TQt clipboard: unknown atom %ld", type); + } +#if 0 + // this needs to be matched by a qt_xdnd_target_data->clear() + // when each drag is finished. for 2.0, we do the safe thing + // and disable the entire caching. + if ( type != None ) + qt_xdnd_target_data->insert( (int)((long)a), new TQByteArray(result) ); +#endif + } + } + if ( !qt_xdnd_current_widget || + qt_xdnd_current_widget->isDesktop() ) { + delete tw; + } + } + + return result; +} + + +/* + Enable drag and drop for widget w by installing the proper + properties on w's toplevel widget. +*/ +bool qt_dnd_enable( TQWidget* w, bool on ) +{ + w = w->topLevelWidget(); + + if ( on ) { + if ( ( (TQExtraWidget*)w)->topData()->dnd ) + return true; // been there, done that + ((TQExtraWidget*)w)->topData()->dnd = 1; + } + + qt_motifdnd_enable( w, on ); + return qt_xdnd_enable( w, on ); +} + + +/*! + \class TQDropEvent tqevent.h + \ingroup events + \ingroup draganddrop + + \brief The TQDropEvent class provides an event which is sent when a drag and drop is completed. + + When a widget \link TQWidget::setAcceptDrops() accepts drop + events\endlink, it will receive this event if it has accepted the + most recent TQDragEnterEvent or TQDragMoveEvent sent to it. + + The widget should use data() to extract the data in an appropriate + format. +*/ + + +/*! + \fn TQDropEvent::TQDropEvent (const TQPoint & pos, Type typ) + + Constructs a drop event that drops a drop of type \a typ on point + \a pos. +*/ // ### pos is in which coordinate system? + + +/*! + Returns a byte array containing the drag's data, in \a format. + + data() normally needs to get the data from the drag source, which + is potentially very slow, so it's advisable to call this function + only if you're sure that you will need the data in \a format. + + The resulting data will have a size of 0 if the format was not + available. + + \sa format() TQByteArray::size() +*/ + +TQByteArray TQDropEvent::encodedData( const char *format ) const +{ + if ( qt_motifdnd_active ) + return qt_motifdnd_obtain_data( format ); + return qt_xdnd_obtain_data( format ); +} + +/*! + Returns a string describing one of the available data types for + this drag. Common examples are "text/plain" and "image/gif". If \a + n is less than zero or greater than the number of available data + types, format() returns 0. + + This function is provided mainly for debugging. Most drop targets + will use provides(). + + \sa data() provides() +*/ + +const char* TQDropEvent::format( int n ) const +{ + if ( qt_motifdnd_active ) + return qt_motifdnd_format( n ); + + int i = 0; + while( iparent() ) + return false; + + if ( object ) { + cancel(); + tqApp->removeEventFilter( this ); + beingCancelled = false; + } + + if ( qt_xdnd_source_object ) { + // the last drag and drop operation hasn't finished, so we are going to wait + // for one second to see if it does... if the finish message comes after this, + // then we could still have problems, but this is highly unlikely + TQApplication::flushX(); + + TQTime started = TQTime::currentTime(); + TQTime now = started; + do { + XEvent event; + if ( XCheckTypedEvent( TQPaintDevice::x11AppDisplay(), + ClientMessage, &event ) ) + tqApp->x11ProcessEvent( &event ); + + now = TQTime::currentTime(); + if ( started > now ) // crossed midnight + started = now; + + // sleep 50ms, so we don't use up CPU cycles all the time. + struct timeval usleep_tv; + usleep_tv.tv_sec = 0; + usleep_tv.tv_usec = 50000; + select(0, 0, 0, 0, &usleep_tv); + } while ( qt_xdnd_source_object && started.msecsTo(now) < 1000 ); + } + + qt_xdnd_source_object = o; + qt_xdnd_source_object->setTarget( 0 ); + qt_xdnd_deco = new TQShapedPixmapWidget(); + + willDrop = false; + + object = o; + updatePixmap(); + + dragSource = (TQWidget *)(object->parent()); + + qt_xdnd_deco->x11SetWindowTransient( dragSource->topLevelWidget()); + tqApp->installEventFilter( this ); + qt_xdnd_source_current_time = tqt_x_time; + XSetSelectionOwner( TQPaintDevice::x11AppDisplay(), qt_xdnd_selection, + dragSource->topLevelWidget()->winId(), + qt_xdnd_source_current_time ); + oldstate = ButtonState(-1); // #### Should use state that caused the drag + drag_mode = mode; + global_accepted_action = TQDropEvent::Copy; + updateMode(ButtonState(0)); + qt_xdnd_source_sameanswer = TQRect(); + move(TQCursor::pos()); + heartbeat = startTimer(200); + need_modifiers_check = false; + +#ifndef TQT_NO_CURSOR + tqApp->setOverrideCursor( arrowCursor ); + restoreCursor = true; + updateCursor(); +#endif + + dndCancelled = false; + qt_xdnd_dragging = true; + + if (!TQWidget::mouseGrabber()) + qt_xdnd_deco->grabMouse(); + + tqApp->enter_loop(); // Do the DND. + +#ifndef TQT_NO_CURSOR + tqApp->restoreOverrideCursor(); +#endif + + delete qt_xdnd_deco; + qt_xdnd_deco = 0; + killTimer( heartbeat ); + heartbeat = -1; + qt_xdnd_current_screen = -1; + qt_xdnd_dragging = false; + + return ((! dndCancelled) && // source del? + (global_accepted_action == TQDropEvent::Copy && + global_requested_action == TQDropEvent::Move)); + + // qt_xdnd_source_object persists until we get an xdnd_finish message +} + +void TQDragManager::updatePixmap( const TQPoint& cursorPos ) +{ + if ( qt_xdnd_deco ) { + TQPixmap pm; + TQPoint pm_hot(default_pm_hotx,default_pm_hoty); + if ( object ) { + pm = object->pixmap(); + if ( !pm.isNull() ) + pm_hot = object->pixmapHotSpot(); + } + if ( pm.isNull() ) { + if ( !defaultPm ) + defaultPm = new TQPixmap(default_pm); + pm = *defaultPm; + } + qt_xdnd_deco->setPixmap(pm, pm_hot); + qt_xdnd_deco->move(cursorPos-pm_hot); + //if ( willDrop ) { + qt_xdnd_deco->show(); + //} else { + // qt_xdnd_deco->hide(); + //} + } +} + +void TQDragManager::updatePixmap() +{ + updatePixmap( TQCursor::pos()); +} + +#endif // TQT_NO_DRAGANDDROP -- cgit v1.2.3