52 #include <qabstracteventdispatcher.h>

   648 void *QFontDialogPrivate::_q_constructNativePanel()

   649 {

   650     QMacCocoaAutoReleasePool pool;

   651 

   652     bool sharedFontPanelExisted = [NSFontPanel sharedFontPanelExists];

   653     NSFontPanel *sharedFontPanel = [NSFontPanel sharedFontPanel];

   654     [sharedFontPanel setHidesOnDeactivate:false];

   655 

   656     // hack to ensure that QCocoaApplication's validModesForFontPanel:

   657     // implementation is honored

   658     if (!sharedFontPanelExisted) {

   659         [sharedFontPanel makeKeyAndOrderFront:sharedFontPanel];

   660         [sharedFontPanel close];

   661     }

   662 

   663     NSPanel *ourPanel = 0;

   664     NSView *stolenContentView = 0;

   665     NSButton *okButton = 0;

   666     NSButton *cancelButton = 0;

   667 

   668     CGFloat dialogExtraWidth = 0.0;

   669     CGFloat dialogExtraHeight = 0.0;

   670 

   671     // compute dialogExtra{Width,Height}

   672     dialogExtraWidth = 2.0 * DialogSideMargin;

   673     dialogExtraHeight = DialogTopMargin + ButtonTopMargin + ButtonMinHeight

   674                         + ButtonBottomMargin;

   675 

   676     // compute initial contents rectangle

   677     NSRect contentRect = [sharedFontPanel contentRectForFrameRect:[sharedFontPanel frame]];

   678     contentRect.size.width += dialogExtraWidth;

   679     contentRect.size.height += dialogExtraHeight;

   680 

   681     // create the new panel

   682     ourPanel = [[NSPanel alloc] initWithContentRect:contentRect

   683                 styleMask:StyleMask

   684                     backing:NSBackingStoreBuffered

   685                         defer:YES];

   686     [ourPanel setReleasedWhenClosed:YES];

   687 

   688     stolenContentView = [sharedFontPanel contentView];

   689 

   690     // steal the font panel's contents view

   691     [stolenContentView retain];

   692     [sharedFontPanel setContentView:0];

   693 

   694     {

   695         // create a new content view and add the stolen one as a subview

   696         NSRect frameRect = { { 0.0, 0.0 }, { 0.0, 0.0 } };

   697         NSView *ourContentView = [[NSView alloc] initWithFrame:frameRect];

   698         [ourContentView addSubview:stolenContentView];

   699 

   700         // create OK and Cancel buttons and add these as subviews

   701         okButton = macCreateButton("&OK", ourContentView);

   702         cancelButton = macCreateButton("Cancel", ourContentView);

   703 

   704         [ourPanel setContentView:ourContentView];

   705         [ourPanel setDefaultButtonCell:[okButton cell]];

   706     }

   707     // create a delegate and set it

   708     QCocoaFontPanelDelegate *delegate =

   709             [[QCocoaFontPanelDelegate alloc] initWithFontPanel:sharedFontPanel

   710                                              stolenContentView:stolenContentView

   711                                                       okButton:okButton

   712                                                   cancelButton:cancelButton

   713                                                           priv:this

   714                                                     extraWidth:dialogExtraWidth

   715                                                    extraHeight:dialogExtraHeight];

   716     [ourPanel setDelegate:delegate];

   717     [[NSFontManager sharedFontManager] setDelegate:delegate];

   718 #ifdef QT_MAC_USE_COCOA

   719     [[NSFontManager sharedFontManager] setTarget:delegate];

   720 #endif

   721     setFont(delegate, QApplication::font());

   722 

   723     {

   724         // hack to get correct initial layout

   725         NSRect frameRect = [ourPanel frame];

   726         frameRect.size.width += 1.0;

   727         [ourPanel setFrame:frameRect display:NO];

   728         frameRect.size.width -= 1.0;

   729         frameRect.size = [delegate windowWillResize:ourPanel toSize:frameRect.size];

   730         [ourPanel setFrame:frameRect display:NO];

   731         [ourPanel center];

   732     }

   733     NSString *title = @"Select font";

   734     [ourPanel setTitle:title];

   735 

   736     [delegate setModalSession:[NSApp beginModalSessionForWindow:ourPanel]];

   737     return delegate;

   738 }

   739 

   740 void QFontDialogPrivate::mac_nativeDialogModalHelp()

   741 {

   742     // Copied from QFileDialogPrivate

   743     // Do a queued meta-call to open the native modal dialog so it opens after the new

   744     // event loop has started to execute (in QDialog::exec). Using a timer rather than

   745     // a queued meta call is intentional to ensure that the call is only delivered when

   746     // [NSApp run] runs (timers are handeled special in cocoa). If NSApp is not

   747     // running (which is the case if e.g a top-most QEventLoop has been

   748     // interrupted, and the second-most event loop has not yet been reactivated (regardless

   749     // if [NSApp run] is still on the stack)), showing a native modal dialog will fail.

   750     if (nativeDialogInUse) {

   751         Q_Q(QFontDialog);

   752         QTimer::singleShot(1, q, SLOT(_q_macRunNativeAppModalPanel()));

   753     }

   754 }

   755 

   756 // The problem with the native font dialog is that OS X does not

   757 // offer a proper dialog, but a panel (i.e. without Ok and Cancel buttons).

   758 // This means we need to "construct" a native dialog by taking the panel

   759 // and "adding" the buttons.

   760 void QFontDialogPrivate::_q_macRunNativeAppModalPanel()

   761 {

   762     QBoolBlocker nativeDialogOnTop(QApplicationPrivate::native_modal_dialog_active);

   763     Q_Q(QFontDialog);

   764     QCocoaFontPanelDelegate *delegate = (QCocoaFontPanelDelegate *)_q_constructNativePanel();

   765     NSWindow *ourPanel = [delegate actualPanel];

   766     [ourPanel retain];

   767     int rval = [NSApp runModalForWindow:ourPanel];

   768     QAbstractEventDispatcher::instance()->interrupt();

   769     [ourPanel release];

   770     [delegate cleanUpAfterMyself];

   771     [delegate release];

   772     bool isOk = (rval == NSOKButton);

   773     if(isOk)

   774         rescode = QDialog::Accepted;

   775     else

   776         rescode = QDialog::Rejected;

   777 }

   778 

   779 bool QFontDialogPrivate::setVisible_sys(bool visible)

   780 {

   781     Q_Q(QFontDialog);

   782     if (!visible == q->isHidden())

   783         return false;

   784     return visible;

   785 }

   786