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JUCE/modules/juce_gui_basics/native/juce_mac_Windowing.mm

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/*
==============================================================================
This file is part of the JUCE library - "Jules' Utility Class Extensions"
Copyright 2004-11 by Raw Material Software Ltd.
------------------------------------------------------------------------------
JUCE can be redistributed and/or modified under the terms of the GNU General
Public License (Version 2), as published by the Free Software Foundation.
A copy of the license is included in the JUCE distribution, or can be found
online at www.gnu.org/licenses.
JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
------------------------------------------------------------------------------
To release a closed-source product which uses JUCE, commercial licenses are
available: visit www.rawmaterialsoftware.com/juce for more information.
==============================================================================
*/
void LookAndFeel::playAlertSound()
{
NSBeep();
}
//==============================================================================
class OSXMessageBox : private AsyncUpdater
{
public:
OSXMessageBox (AlertWindow::AlertIconType type,
const String& title_, const String& message_,
const char* b1, const char* b2, const char* b3,
ModalComponentManager::Callback* callback_,
const bool runAsync)
: iconType (type), title (title_),
message (message_), callback (callback_),
button1 (b1), button2 (b2), button3 (b3)
{
if (runAsync)
triggerAsyncUpdate();
}
int getResult() const
{
JUCE_AUTORELEASEPOOL
NSInteger r = getRawResult();
return r == NSAlertDefaultReturn ? 1 : (r == NSAlertOtherReturn ? 2 : 0);
}
static int show (AlertWindow::AlertIconType iconType, const String& title, const String& message,
ModalComponentManager::Callback* callback, const char* b1, const char* b2, const char* b3)
{
ScopedPointer<OSXMessageBox> mb (new OSXMessageBox (iconType, title, message, b1, b2, b3,
callback, callback != nullptr));
if (callback == nullptr)
return mb->getResult();
mb.release();
return 0;
}
private:
AlertWindow::AlertIconType iconType;
String title, message;
ModalComponentManager::Callback* callback;
const char* button1;
const char* button2;
const char* button3;
void handleAsyncUpdate()
{
const int result = getResult();
if (callback != nullptr)
callback->modalStateFinished (result);
delete this;
}
static NSString* translateIfNotNull (const char* s)
{
return s != nullptr ? juceStringToNS (TRANS (s)) : nil;
}
NSInteger getRawResult() const
{
NSString* msg = juceStringToNS (message);
NSString* ttl = juceStringToNS (title);
NSString* b1 = translateIfNotNull (button1);
NSString* b2 = translateIfNotNull (button2);
NSString* b3 = translateIfNotNull (button3);
switch (iconType)
{
case AlertWindow::InfoIcon: return NSRunInformationalAlertPanel (ttl, msg, b1, b2, b3);
case AlertWindow::WarningIcon: return NSRunCriticalAlertPanel (ttl, msg, b1, b2, b3);
default: return NSRunAlertPanel (ttl, msg, b1, b2, b3);
}
}
};
void JUCE_CALLTYPE NativeMessageBox::showMessageBox (AlertWindow::AlertIconType iconType,
const String& title, const String& message,
Component* /*associatedComponent*/)
{
OSXMessageBox box (iconType, title, message, "OK", nullptr, nullptr, nullptr, false);
(void) box.getResult();
}
void JUCE_CALLTYPE NativeMessageBox::showMessageBoxAsync (AlertWindow::AlertIconType iconType,
const String& title, const String& message,
Component* /*associatedComponent*/)
{
new OSXMessageBox (iconType, title, message, "OK", nullptr, nullptr, nullptr, true);
}
bool JUCE_CALLTYPE NativeMessageBox::showOkCancelBox (AlertWindow::AlertIconType iconType,
const String& title, const String& message,
Component* /*associatedComponent*/,
ModalComponentManager::Callback* callback)
{
return OSXMessageBox::show (iconType, title, message, callback, "OK", "Cancel", nullptr) == 1;
}
int JUCE_CALLTYPE NativeMessageBox::showYesNoCancelBox (AlertWindow::AlertIconType iconType,
const String& title, const String& message,
Component* /*associatedComponent*/,
ModalComponentManager::Callback* callback)
{
return OSXMessageBox::show (iconType, title, message, callback, "Yes", "Cancel", "No");
}
//==============================================================================
bool DragAndDropContainer::performExternalDragDropOfFiles (const StringArray& files, const bool /*canMoveFiles*/)
{
if (files.size() == 0)
return false;
MouseInputSource* draggingSource = Desktop::getInstance().getDraggingMouseSource(0);
if (draggingSource == nullptr)
{
jassertfalse; // This method must be called in response to a component's mouseDown or mouseDrag event!
return false;
}
Component* sourceComp = draggingSource->getComponentUnderMouse();
if (sourceComp == nullptr)
{
jassertfalse; // This method must be called in response to a component's mouseDown or mouseDrag event!
return false;
}
JUCE_AUTORELEASEPOOL
NSView* view = (NSView*) sourceComp->getWindowHandle();
if (view == nil)
return false;
NSPasteboard* pboard = [NSPasteboard pasteboardWithName: NSDragPboard];
[pboard declareTypes: [NSArray arrayWithObject: NSFilenamesPboardType]
owner: nil];
NSMutableArray* filesArray = [NSMutableArray arrayWithCapacity: 4];
for (int i = 0; i < files.size(); ++i)
[filesArray addObject: juceStringToNS (files[i])];
[pboard setPropertyList: filesArray
forType: NSFilenamesPboardType];
NSPoint dragPosition = [view convertPoint: [[[view window] currentEvent] locationInWindow]
fromView: nil];
dragPosition.x -= 16;
dragPosition.y -= 16;
[view dragImage: [[NSWorkspace sharedWorkspace] iconForFile: juceStringToNS (files[0])]
at: dragPosition
offset: NSMakeSize (0, 0)
event: [[view window] currentEvent]
pasteboard: pboard
source: view
slideBack: YES];
return true;
}
bool DragAndDropContainer::performExternalDragDropOfText (const String& /*text*/)
{
jassertfalse; // not implemented!
return false;
}
//==============================================================================
bool Desktop::canUseSemiTransparentWindows() noexcept
{
return true;
}
Point<int> MouseInputSource::getCurrentMousePosition()
{
JUCE_AUTORELEASEPOOL
const NSPoint p ([NSEvent mouseLocation]);
return Point<int> (roundToInt (p.x), roundToInt ([[[NSScreen screens] objectAtIndex: 0] frame].size.height - p.y));
}
void Desktop::setMousePosition (const Point<int>& newPosition)
{
// this rubbish needs to be done around the warp call, to avoid causing a
// bizarre glitch..
CGAssociateMouseAndMouseCursorPosition (false);
CGWarpMouseCursorPosition (convertToCGPoint (newPosition));
CGAssociateMouseAndMouseCursorPosition (true);
}
Desktop::DisplayOrientation Desktop::getCurrentOrientation() const
{
return upright;
}
//==============================================================================
#ifndef __POWER__ // Some versions of the SDK omit this function..
extern "C" { extern OSErr UpdateSystemActivity (UInt8); }
#endif
class ScreenSaverDefeater : public Timer
{
public:
ScreenSaverDefeater()
{
startTimer (10000);
timerCallback();
}
void timerCallback()
{
if (Process::isForegroundProcess())
UpdateSystemActivity (1 /*UsrActivity*/);
}
};
static ScopedPointer<ScreenSaverDefeater> screenSaverDefeater;
void Desktop::setScreenSaverEnabled (const bool isEnabled)
{
if (isEnabled)
screenSaverDefeater = nullptr;
else if (screenSaverDefeater == nullptr)
screenSaverDefeater = new ScreenSaverDefeater();
}
bool Desktop::isScreenSaverEnabled()
{
return screenSaverDefeater == nullptr;
}
//==============================================================================
class DisplaySettingsChangeCallback : private DeletedAtShutdown
{
public:
DisplaySettingsChangeCallback()
{
CGDisplayRegisterReconfigurationCallback (displayReconfigurationCallBack, 0);
}
~DisplaySettingsChangeCallback()
{
CGDisplayRemoveReconfigurationCallback (displayReconfigurationCallBack, 0);
clearSingletonInstance();
}
static void displayReconfigurationCallBack (CGDirectDisplayID, CGDisplayChangeSummaryFlags, void*)
{
const_cast <Desktop::Displays&> (Desktop::getInstance().getDisplays()).refresh();
}
juce_DeclareSingleton_SingleThreaded_Minimal (DisplaySettingsChangeCallback);
private:
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (DisplaySettingsChangeCallback)
};
juce_ImplementSingleton_SingleThreaded (DisplaySettingsChangeCallback);
static Rectangle<int> convertDisplayRect (NSRect r, CGFloat mainScreenBottom)
{
r.origin.y = mainScreenBottom - (r.origin.y + r.size.height);
return convertToRectInt (r);
}
void Desktop::Displays::findDisplays()
{
JUCE_AUTORELEASEPOOL
DisplaySettingsChangeCallback::getInstance();
NSArray* screens = [NSScreen screens];
const CGFloat mainScreenBottom = [[screens objectAtIndex: 0] frame].size.height;
for (unsigned int i = 0; i < [screens count]; ++i)
{
NSScreen* s = (NSScreen*) [screens objectAtIndex: i];
Display d;
d.userArea = convertDisplayRect ([s visibleFrame], mainScreenBottom);
d.totalArea = convertDisplayRect ([s frame], mainScreenBottom);
d.isMain = (i == 0);
#if defined (MAC_OS_X_VERSION_10_7) && (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_7)
if ([s respondsToSelector: @selector (backingScaleFactor)])
d.scale = s.backingScaleFactor;
else
#endif
d.scale = 1.0;
displays.add (d);
}
}
//==============================================================================
bool juce_areThereAnyAlwaysOnTopWindows()
{
NSArray* windows = [NSApp windows];
for (unsigned int i = 0; i < [windows count]; ++i)
{
const NSInteger level = [((NSWindow*) [windows objectAtIndex: i]) level];
if (level == NSFloatingWindowLevel
|| level == NSStatusWindowLevel
|| level == NSModalPanelWindowLevel)
return true;
}
return false;
}
//==============================================================================
Image juce_createIconForFile (const File& file)
{
JUCE_AUTORELEASEPOOL
NSImage* image = [[NSWorkspace sharedWorkspace] iconForFile: juceStringToNS (file.getFullPathName())];
Image result (Image::ARGB, (int) [image size].width, (int) [image size].height, true);
[NSGraphicsContext saveGraphicsState];
[NSGraphicsContext setCurrentContext: [NSGraphicsContext graphicsContextWithGraphicsPort: juce_getImageContext (result) flipped: false]];
[image drawAtPoint: NSMakePoint (0, 0)
fromRect: NSMakeRect (0, 0, [image size].width, [image size].height)
operation: NSCompositeSourceOver fraction: 1.0f];
[[NSGraphicsContext currentContext] flushGraphics];
[NSGraphicsContext restoreGraphicsState];
return result;
}
//==============================================================================
void SystemClipboard::copyTextToClipboard (const String& text)
{
NSPasteboard* pb = [NSPasteboard generalPasteboard];
[pb declareTypes: [NSArray arrayWithObject: NSStringPboardType]
owner: nil];
[pb setString: juceStringToNS (text)
forType: NSStringPboardType];
}
String SystemClipboard::getTextFromClipboard()
{
NSString* text = [[NSPasteboard generalPasteboard] stringForType: NSStringPboardType];
return text == nil ? String::empty
: nsStringToJuce (text);
}
void Process::setDockIconVisible (bool isVisible)
{
#if defined (MAC_OS_X_VERSION_10_6) && (MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_6)
[NSApp setActivationPolicy: isVisible ? NSApplicationActivationPolicyRegular
: NSApplicationActivationPolicyProhibited];
#else
jassertfalse; // sorry, not available in 10.5!
#endif
}