1 | #include"qwextend.h"
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2 |
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3 | #ifdef Q_WS_X11
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4 |
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5 | #define protected public
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6 | #define private public
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7 | #include<qwidget.h>
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8 | #undef protected
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9 | #undef private
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10 |
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11 | #include<qcursor.h>
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12 | #include<qobjectlist.h>
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13 | #include<qpixmap.h>
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14 | #include<X11/Xlib.h>
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15 | #include<X11/Xutil.h>
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16 |
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17 | // taken from qt/x11 (doing this sucks sucks sucks sucks sucks)
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18 | void reparent_good(QWidget *that, WFlags f, bool showIt)
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19 | {
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20 | extern void qPRCreate( const QWidget *, Window );
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21 | extern void qt_XDestroyWindow( const QWidget *destroyer, Display *display, Window window );
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22 | extern bool qt_dnd_enable( QWidget* w, bool on );
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23 |
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24 | QWidget *parent = 0;
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25 | Display *dpy = that->x11Display();
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26 | QCursor oldcurs;
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27 | bool setcurs = that->testWState(Qt::WState_OwnCursor);
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28 | if ( setcurs ) {
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29 | oldcurs = that->cursor();
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30 | that->unsetCursor();
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31 | }
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32 |
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33 | // dnd unregister (we will register again below)
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34 | bool accept_drops = that->acceptDrops();
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35 | that->setAcceptDrops( FALSE );
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36 |
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37 | // clear mouse tracking, re-enabled below
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38 | bool mouse_tracking = that->hasMouseTracking();
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39 | that->clearWState(Qt::WState_MouseTracking);
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40 |
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41 | QWidget* oldtlw = that->topLevelWidget();
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42 | QWidget *oldparent = that->parentWidget();
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43 | WId old_winid = that->winid;
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44 | if ( that->testWFlags(Qt::WType_Desktop) )
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45 | old_winid = 0;
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46 | that->setWinId( 0 );
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47 |
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48 | // hide and reparent our own window away. Otherwise we might get
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49 | // destroyed when emitting the child remove event below. See QWorkspace.
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50 | XUnmapWindow( that->x11Display(), old_winid );
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51 | XReparentWindow( that->x11Display(), old_winid,
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52 | RootWindow( that->x11Display(), that->x11Screen() ), 0, 0 );
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53 |
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54 | if ( that->isTopLevel() ) {
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55 | // input contexts are associated with toplevel widgets, so we need
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56 | // destroy the context here. if we are reparenting back to toplevel,
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57 | // then we will have another context created, otherwise we will
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58 | // use our new toplevel's context
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59 | that->destroyInputContext();
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60 | }
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61 |
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62 | if ( that->isTopLevel() || !parent ) // we are toplevel, or reparenting to toplevel
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63 | that->topData()->parentWinId = 0;
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64 |
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65 | if ( parent != that->parentObj ) {
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66 | if ( that->parentObj ) // remove from parent
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67 | that->parentObj->removeChild( that );
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68 | if ( parent ) // insert into new parent
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69 | parent->insertChild( that );
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70 | }
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71 | bool enable = that->isEnabled(); // remember status
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72 | QWidget::FocusPolicy fp = that->focusPolicy();
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73 | QSize s = that->size();
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74 | QPixmap *bgp = (QPixmap *)that->backgroundPixmap();
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75 | QColor bgc = that->bg_col; // save colors
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76 | QString capt= that->caption();
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77 | that->widget_flags = f;
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78 | that->clearWState( Qt::WState_Created | Qt::WState_Visible | Qt::WState_ForceHide );
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79 | that->create();
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80 | if ( that->isTopLevel() || (!parent || parent->isVisible() ) )
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81 | that->setWState( Qt::WState_ForceHide ); // new widgets do not show up in already visible parents
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82 |
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83 | const QObjectList *chlist = that->children();
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84 | if ( chlist ) { // reparent children
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85 | QObjectListIt it( *chlist );
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86 | QObject *obj;
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87 | while ( (obj=it.current()) ) {
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88 | if ( obj->isWidgetType() ) {
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89 | QWidget *w = (QWidget *)obj;
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90 | if ( !w->isTopLevel() ) {
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91 | XReparentWindow( that->x11Display(), w->winId(), that->winId(),
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92 | w->geometry().x(), w->geometry().y() );
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93 | } else if ( w->isPopup()
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94 | || w->testWFlags(Qt::WStyle_DialogBorder)
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95 | || w->testWFlags(Qt::WType_Dialog)
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96 | || w->testWFlags(Qt::WStyle_Tool) ) {
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97 | XSetTransientForHint( that->x11Display(), w->winId(), that->winId() );
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98 | }
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99 | }
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100 | ++it;
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101 | }
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102 | }
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103 | qPRCreate( that, old_winid );
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104 | if ( bgp )
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105 | XSetWindowBackgroundPixmap( dpy, that->winid, bgp->handle() );
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106 | else
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107 | XSetWindowBackground( dpy, that->winid, bgc.pixel(that->x11Screen()) );
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108 |
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109 | // all this just to do a stupid resize instead of setGeometry
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110 | //setGeometry( p.x(), p.y(), s.width(), s.height() );
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111 | that->resize(s.width(), s.height());
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112 |
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113 | that->setEnabled( enable );
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114 | that->setFocusPolicy( fp );
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115 | if ( !capt.isNull() ) {
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116 | that->extra->topextra->caption = QString::null;
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117 | that->setCaption( capt );
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118 | }
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119 | if ( showIt )
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120 | that->show();
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121 | if ( old_winid )
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122 | qt_XDestroyWindow( that, dpy, old_winid );
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123 | if ( setcurs )
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124 | that->setCursor(oldcurs);
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125 |
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126 | that->reparentFocusWidgets( oldtlw );
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127 |
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128 | // re-register dnd
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129 | if (oldparent)
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130 | oldparent->checkChildrenDnd();
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131 |
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132 | if ( accept_drops )
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133 | that->setAcceptDrops( TRUE );
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134 | else {
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135 | that->checkChildrenDnd();
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136 | that->topData()->dnd = 0;
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137 | qt_dnd_enable(that, (that->extra && that->extra->children_use_dnd));
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138 | }
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139 |
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140 | // re-enable mouse tracking
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141 | if (mouse_tracking)
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142 | that->setMouseTracking(mouse_tracking);
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143 | }
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144 |
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145 | #endif
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