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Diffstat (limited to 'src/gui/dialogs/qcolordialog_mac.mm')
| -rw-r--r-- | src/gui/dialogs/qcolordialog_mac.mm | 426 |
1 files changed, 426 insertions, 0 deletions
diff --git a/src/gui/dialogs/qcolordialog_mac.mm b/src/gui/dialogs/qcolordialog_mac.mm new file mode 100644 index 0000000..2556265 --- /dev/null +++ b/src/gui/dialogs/qcolordialog_mac.mm @@ -0,0 +1,426 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qcolordialog_p.h" +#if !defined(QT_NO_COLORDIALOG) && defined(Q_WS_MAC) +#include <qapplication.h> +#include <qtimer.h> +#include <qdialogbuttonbox.h> +#include <private/qapplication_p.h> +#include <private/qt_mac_p.h> +#include <qdebug.h> +#import <AppKit/AppKit.h> +#import <Foundation/Foundation.h> + +#if !CGFLOAT_DEFINED +typedef float CGFloat; // Should only not be defined on 32-bit platforms +#endif + +QT_USE_NAMESPACE + +@class QCocoaColorPanelDelegate; + +@interface QCocoaColorPanelDelegate : NSObject { + NSColorPanel *mColorPanel; + NSView *mStolenContentView; + NSButton *mOkButton; + NSButton *mCancelButton; + QColorDialogPrivate *mPriv; + QColor *mQtColor; + CGFloat mMinWidth; // currently unused + CGFloat mExtraHeight; // currently unused + BOOL mHackedPanel; +} +- (id)initWithColorPanel:(NSColorPanel *)panel + stolenContentView:(NSView *)stolenContentView + okButton:(NSButton *)okButton + cancelButton:(NSButton *)cancelButton + priv:(QColorDialogPrivate *)priv; +- (BOOL)windowShouldClose:(id)window; +- (void)windowDidResize:(NSNotification *)notification; +- (void)colorChanged:(NSNotification *)notification; +- (void)relayout; +- (void)onOkClicked; +- (void)onCancelClicked; +- (void)updateQtColor; +- (NSColorPanel *)colorPanel; +- (QColor)qtColor; +- (void)finishOffWithCode:(NSInteger)result; +- (void)cleanUpAfterMyself; +@end + +@implementation QCocoaColorPanelDelegate +- (id)initWithColorPanel:(NSColorPanel *)panel + stolenContentView:(NSView *)stolenContentView + okButton:(NSButton *)okButton + cancelButton:(NSButton *)cancelButton + priv:(QColorDialogPrivate *)priv +{ + self = [super init]; + + mColorPanel = panel; + mStolenContentView = stolenContentView; + mOkButton = okButton; + mCancelButton = cancelButton; + mPriv = priv; + mMinWidth = 0.0; + mExtraHeight = 0.0; + mHackedPanel = (okButton != 0); + + if (mHackedPanel) { + [self relayout]; + + [okButton setAction:@selector(onOkClicked)]; + [okButton setTarget:self]; + + [cancelButton setAction:@selector(onCancelClicked)]; + [cancelButton setTarget:self]; + } + + if (mPriv) + [[NSNotificationCenter defaultCenter] addObserver:self + selector:@selector(colorChanged:) + name:NSColorPanelColorDidChangeNotification + object:mColorPanel]; + mQtColor = new QColor(); + return self; +} + +- (void)dealloc +{ + if (mPriv) + [[NSNotificationCenter defaultCenter] removeObserver:self]; + delete mQtColor; + [super dealloc]; +} + +- (BOOL)windowShouldClose:(id)window +{ + Q_UNUSED(window); + if (mHackedPanel) { + [self onCancelClicked]; + } else { + [self updateQtColor]; + [self finishOffWithCode:NSCancelButton]; + } + return true; +} + +- (void)windowDidResize:(NSNotification *)notification +{ + Q_UNUSED(notification); + if (mHackedPanel) + [self relayout]; +} + +- (void)colorChanged:(NSNotification *)notification; +{ + Q_UNUSED(notification); + if (mPriv) + [self updateQtColor]; +} + +- (void)relayout +{ + Q_ASSERT(mHackedPanel); + + NSRect rect = [[mStolenContentView superview] frame]; + + // should a priori be kept in sync with qfontdialog_mac.mm + const CGFloat ButtonMinWidth = 78.0; // 84.0 for Carbon + const CGFloat ButtonMinHeight = 32.0; + const CGFloat ButtonSpacing = 0.0; + const CGFloat ButtonTopMargin = 0.0; + const CGFloat ButtonBottomMargin = 7.0; + const CGFloat ButtonSideMargin = 9.0; + + [mOkButton sizeToFit]; + NSSize okSizeHint = [mOkButton frame].size; + + [mCancelButton sizeToFit]; + NSSize cancelSizeHint = [mCancelButton frame].size; + + const CGFloat ButtonWidth = qMin(qMax(ButtonMinWidth, + qMax(okSizeHint.width, cancelSizeHint.width)), + CGFloat((rect.size.width - 2.0 * ButtonSideMargin - ButtonSpacing) * 0.5)); + const CGFloat ButtonHeight = qMax(ButtonMinHeight, + qMax(okSizeHint.height, cancelSizeHint.height)); + + NSRect okRect = { { rect.size.width - ButtonSideMargin - ButtonWidth, + ButtonBottomMargin }, + { ButtonWidth, ButtonHeight } }; + [mOkButton setFrame:okRect]; + [mOkButton setNeedsDisplay:YES]; + + NSRect cancelRect = { { okRect.origin.x - ButtonSpacing - ButtonWidth, + ButtonBottomMargin }, + { ButtonWidth, ButtonHeight } }; + [mCancelButton setFrame:cancelRect]; + [mCancelButton setNeedsDisplay:YES]; + + const CGFloat Y = ButtonBottomMargin + ButtonHeight + ButtonTopMargin; + NSRect stolenCVRect = { { 0.0, Y }, + { rect.size.width, rect.size.height - Y } }; + [mStolenContentView setFrame:stolenCVRect]; + [mStolenContentView setNeedsDisplay:YES]; + + [[mStolenContentView superview] setNeedsDisplay:YES]; + mMinWidth = 2 * ButtonSideMargin + ButtonSpacing + 2 * ButtonWidth; + mExtraHeight = Y; +} + +- (void)onOkClicked +{ + Q_ASSERT(mHackedPanel); + [[mStolenContentView window] close]; + [self updateQtColor]; + [self finishOffWithCode:NSOKButton]; +} + +- (void)onCancelClicked +{ + Q_ASSERT(mHackedPanel); + [[mStolenContentView window] close]; + delete mQtColor; + mQtColor = new QColor(); + [self finishOffWithCode:NSCancelButton]; +} + +- (void)updateQtColor +{ + delete mQtColor; + mQtColor = new QColor(); + NSColor *color = [mColorPanel color]; + NSString *colorSpace = [color colorSpaceName]; + if (colorSpace == NSDeviceCMYKColorSpace) { + CGFloat cyan, magenta, yellow, black, alpha; + [color getCyan:&cyan magenta:&magenta yellow:&yellow black:&black alpha:&alpha]; + mQtColor->setCmykF(cyan, magenta, yellow, black, alpha); + } else { + NSColor *tmpColor; + if (colorSpace == NSCalibratedRGBColorSpace || colorSpace == NSDeviceRGBColorSpace) { + tmpColor = color; + } else { + tmpColor = [color colorUsingColorSpaceName:NSCalibratedRGBColorSpace]; + } + CGFloat red, green, blue, alpha; + [tmpColor getRed:&red green:&green blue:&blue alpha:&alpha]; + mQtColor->setRgbF(red, green, blue, alpha); + } + + if (mPriv) + mPriv->setCurrentQColor(*mQtColor); +} + +- (NSColorPanel *)colorPanel +{ + return mColorPanel; +} + +- (QColor)qtColor +{ + return *mQtColor; +} + +- (void)finishOffWithCode:(NSInteger)code +{ + if (mPriv) { + // Finish the QColorDialog as well. But since a call to accept or reject will + // close down the QEventLoop found in QDialog, we need to make sure that the + // current thread has exited the native dialogs modal session/run loop first. + // We ensure this by posting the call: + [NSApp stopModalWithCode:code]; + if (code == NSOKButton) + QMetaObject::invokeMethod(mPriv->colorDialog(), "accept", Qt::QueuedConnection); + else + QMetaObject::invokeMethod(mPriv->colorDialog(), "reject", Qt::QueuedConnection); + } else { + [NSApp stopModalWithCode:code]; + } +} + +- (void)cleanUpAfterMyself +{ + if (mHackedPanel) { + NSView *ourContentView = [mColorPanel contentView]; + + // return stolen stuff to its rightful owner + [mStolenContentView removeFromSuperview]; + [mColorPanel setContentView:mStolenContentView]; + + [mOkButton release]; + [mCancelButton release]; + [ourContentView release]; + } + [mColorPanel setDelegate:nil]; +} +@end + +QT_BEGIN_NAMESPACE + +extern void macStartInterceptNSPanelCtor(); +extern void macStopInterceptNSPanelCtor(); +extern NSButton *macCreateButton(const char *text, NSView *superview); + +void *QColorDialogPrivate::openCocoaColorPanel(const QColor &initial, + QWidget *parent, const QString &title, QColorDialog::ColorDialogOptions options, + QColorDialogPrivate *priv) +{ + Q_UNUSED(parent); // we would use the parent if only NSColorPanel could be a sheet + QMacCocoaAutoReleasePool pool; + + /* + The standard Cocoa color panel has no OK or Cancel button and + is created as a utility window, whereas we want something like + the Carbon color panel. We need to take the following steps: + + 1. Intercept the color panel constructor to turn off the + NSUtilityWindowMask flag. This is done by temporarily + replacing initWithContentRect:styleMask:backing:defer: + in NSPanel by our own method. + + 2. Modify the color panel so that its content view is part + of a new content view that contains it as well as two + buttons (OK and Cancel). + + 3. Lay out the original content view and the buttons when + the color panel is shown and whenever it is resized. + + 4. Clean up after ourselves. + */ + + bool hackColorPanel = !(options & QColorDialog::NoButtons); + + if (hackColorPanel) + macStartInterceptNSPanelCtor(); + NSColorPanel *colorPanel = [NSColorPanel sharedColorPanel]; + if (hackColorPanel) + macStopInterceptNSPanelCtor(); + + [colorPanel setHidesOnDeactivate:false]; + + // set up the Cocoa color panel + [colorPanel setShowsAlpha:options & QColorDialog::ShowAlphaChannel]; + [colorPanel setTitle:(NSString*)(CFStringRef)QCFString(title)]; + + NSView *stolenContentView = 0; + NSButton *okButton = 0; + NSButton *cancelButton = 0; + + if (hackColorPanel) { + // steal the color panel's contents view + stolenContentView = [colorPanel contentView]; + [stolenContentView retain]; + [colorPanel setContentView:0]; + + // create a new content view and add the stolen one as a subview + NSRect frameRect = { { 0.0, 0.0 }, { 0.0, 0.0 } }; + NSView *ourContentView = [[NSView alloc] initWithFrame:frameRect]; + [ourContentView addSubview:stolenContentView]; + + // create OK and Cancel buttons and add these as subviews + okButton = macCreateButton("&OK", ourContentView); + cancelButton = macCreateButton("Cancel", ourContentView); + + [colorPanel setContentView:ourContentView]; + [colorPanel setDefaultButtonCell:[okButton cell]]; + } + + // create a delegate and set it + QCocoaColorPanelDelegate *delegate = + [[QCocoaColorPanelDelegate alloc] initWithColorPanel:colorPanel + stolenContentView:stolenContentView + okButton:okButton + cancelButton:cancelButton + priv:priv]; + [colorPanel setDelegate:delegate]; + setColor(delegate, initial); + [colorPanel makeKeyAndOrderFront:colorPanel]; + + return delegate; +} + +void QColorDialogPrivate::closeCocoaColorPanel(void *delegate) +{ + QMacCocoaAutoReleasePool pool; + QCocoaColorPanelDelegate *theDelegate = static_cast<QCocoaColorPanelDelegate *>(delegate); + [[theDelegate colorPanel] close]; + [theDelegate cleanUpAfterMyself]; + [theDelegate autorelease]; +} + +void QColorDialogPrivate::mac_nativeDialogModalHelp() +{ + // Do a queued meta-call to open the native modal dialog so it opens after the new + // event loop has started to execute (in QDialog::exec). Using a timer rather than + // a queued meta call is intentional to ensure that the call is only delivered when + // [NSApp run] runs (timers are handeled special in cocoa). If NSApp is not + // running (which is the case if e.g a top-most QEventLoop has been + // interrupted, and the second-most event loop has not yet been reactivated (regardless + // if [NSApp run] is still on the stack)), showing a native modal dialog will fail. + if (delegate){ + Q_Q(QColorDialog); + QTimer::singleShot(1, q, SLOT(_q_macRunNativeAppModalPanel())); + } +} + +void QColorDialogPrivate::_q_macRunNativeAppModalPanel() +{ + QBoolBlocker nativeDialogOnTop(QApplicationPrivate::native_modal_dialog_active); + QMacCocoaAutoReleasePool pool; + QCocoaColorPanelDelegate *delegateCasted = static_cast<QCocoaColorPanelDelegate *>(delegate); + [NSApp runModalForWindow:[delegateCasted colorPanel]]; +} + +void QColorDialogPrivate::setColor(void *delegate, const QColor &color) +{ + QMacCocoaAutoReleasePool pool; + QCocoaColorPanelDelegate *theDelegate = static_cast<QCocoaColorPanelDelegate *>(delegate); + NSColor *nsColor = [NSColor colorWithCalibratedRed:color.red() / 255.0 + green:color.green() / 255.0 + blue:color.blue() / 255.0 + alpha:color.alpha() / 255.0]; + [[theDelegate colorPanel] setColor:nsColor]; +} + +QT_END_NAMESPACE + +#endif |