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git-svn-id: http://skia.googlecode.com/svn/trunk@30 2bbb7eff-a529-9590-31e7-b0007b416f81
This commit is contained in:
reed@android.com
Родитель
689411a87c
Коммит
33469859a5
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/*
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File: main.c
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Abstract: Main event loop and app handling code is found in here.
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Version: 1.0
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<EFBFBD> Copyright 2005 Apple Computer, Inc. All rights reserved.
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IMPORTANT: This Apple software is supplied to
|
||||
you by Apple Computer, Inc. ("Apple") in
|
||||
consideration of your agreement to the following
|
||||
terms, and your use, installation, modification
|
||||
or redistribution of this Apple software
|
||||
constitutes acceptance of these terms. If you do
|
||||
not agree with these terms, please do not use,
|
||||
install, modify or redistribute this Apple
|
||||
software.
|
||||
|
||||
In consideration of your agreement to abide by
|
||||
the following terms, and subject to these terms,
|
||||
Apple grants you a personal, non-exclusive
|
||||
license, under Apple's copyrights in this
|
||||
original Apple software (the "Apple Software"),
|
||||
to use, reproduce, modify and redistribute the
|
||||
Apple Software, with or without modifications, in
|
||||
source and/or binary forms; provided that if you
|
||||
redistribute the Apple Software in its entirety
|
||||
and without modifications, you must retain this
|
||||
notice and the following text and disclaimers in
|
||||
all such redistributions of the Apple Software.
|
||||
Neither the name, trademarks, service marks or
|
||||
logos of Apple Computer, Inc. may be used to
|
||||
endorse or promote products derived from the
|
||||
Apple Software without specific prior written
|
||||
permission from Apple. Except as expressly
|
||||
stated in this notice, no other rights or
|
||||
licenses, express or implied, are granted by
|
||||
Apple herein, including but not limited to any
|
||||
patent rights that may be infringed by your
|
||||
derivative works or by other works in which the
|
||||
Apple Software may be incorporated.
|
||||
|
||||
The Apple Software is provided by Apple on an "AS
|
||||
IS" basis. APPLE MAKES NO WARRANTIES, EXPRESS OR
|
||||
IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
|
||||
WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY
|
||||
AND FITNESS FOR A PARTICULAR PURPOSE, REGARDING
|
||||
THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE
|
||||
OR IN COMBINATION WITH YOUR PRODUCTS.
|
||||
|
||||
IN NO EVENT SHALL APPLE BE LIABLE FOR ANY
|
||||
SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL
|
||||
DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
||||
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE,
|
||||
REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION OF
|
||||
THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER
|
||||
UNDER THEORY OF CONTRACT, TORT (INCLUDING
|
||||
NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN
|
||||
IF APPLE HAS BEEN ADVISED OF THE POSSIBILITY OF
|
||||
SUCH DAMAGE.
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*/
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#include <Carbon/Carbon.h>
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#include "CIDraw.h"
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/* Constants */
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#define kMyHIViewSignature 'ciHV'
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#define kMyHIViewFieldID 128
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#define kGammaSliderSignature 'gSLD'
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#define kGammaSliderFieldID 128
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#define kAboutBoxStringKey CFSTR("AboutString") // these key the localizable strings
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/* Private Prototypes */
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static OSStatus MyDrawEventHandler(EventHandlerCallRef myHandler, EventRef event, void *userData);
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static void MyGammaSliderProc( ControlHandle control, SInt16 part );
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static pascal OSStatus DoAppCommandProcess(EventHandlerCallRef nextHandler, EventRef theEvent, void* userData);
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static PMPageFormat CreateDefaultPageFormat(void);
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static OSStatus DoPageSetup(PMPageFormat pageFormat);
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static OSStatus DoPrint(PMPageFormat pageFormat);
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static OSStatus MyDoPrintLoop(PMPrintSession printSession, PMPageFormat pageFormat, PMPrintSettings printSettings);
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static void DoAboutBox();
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/* Global Data */
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static HIViewRef gMyHIView = NULL;
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static HIViewRef gGammaSliderView = NULL;
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static PMPageFormat gPageFormat = NULL;
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int main(int argc, char* argv[])
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{
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static const HIViewID kMyViewID = {kMyHIViewSignature, kMyHIViewFieldID };
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static const HIViewID kGammaSliderID = {kGammaSliderSignature, kGammaSliderFieldID };
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IBNibRef nibRef;
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WindowRef window;
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EventTargetRef myEventTarget;
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static const EventTypeSpec kMyViewEvents[] = {kEventClassControl, kEventControlDraw };
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static const EventTypeSpec kMyCommandEvents[] = {kEventClassCommand, kEventCommandProcess };
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OSStatus err = noErr;
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// Create a Nib reference passing the name of the nib file (without the .nib extension)
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// CreateNibReference only searches into the application bundle.
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err = CreateNibReference(CFSTR("main"), &nibRef);
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require_noerr( err, CantGetNibRef );
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// Once the nib reference is created, set the menu bar. "MainMenu" is the name of the menu bar
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// object. This name is set in InterfaceBuilder when the nib is created.
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err = SetMenuBarFromNib(nibRef, CFSTR("MenuBar"));
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require_noerr( err, CantSetMenuBar );
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// Then create a window. "MainWindow" is the name of the window object. This name is set in
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// InterfaceBuilder when the nib is created.
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err = CreateWindowFromNib(nibRef, CFSTR("MainWindow"), &window);
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require_noerr( err, CantCreateWindow );
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// Get the HIView associated with the window.
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HIViewFindByID( HIViewGetRoot( window ), kMyViewID, &gMyHIView );
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// make the view opaque
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HIViewChangeFeatures(gMyHIView, kHIViewIsOpaque, 0);
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// Get the event target for the view.
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myEventTarget = GetControlEventTarget (gMyHIView);
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// Install the event handler for the HIView.
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err = InstallEventHandler (myEventTarget,
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NewEventHandlerUPP (MyDrawEventHandler),
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GetEventTypeCount(kMyViewEvents),
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kMyViewEvents,
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(void *) gMyHIView,
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NULL);
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HIViewFindByID( HIViewGetRoot( window ), kGammaSliderID, &gGammaSliderView );
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SetControlAction( gGammaSliderView, NewControlActionUPP(MyGammaSliderProc) );
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// Install the handler for the menu commands.
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InstallApplicationEventHandler(NewEventHandlerUPP(DoAppCommandProcess), GetEventTypeCount(kMyCommandEvents),
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kMyCommandEvents, NULL, NULL);
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// We don't need the nib reference anymore.
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DisposeNibReference(nibRef);
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// The window was created hidden so show it.
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ShowWindow( window );
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// Call the event loop
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RunApplicationEventLoop();
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CantCreateWindow:
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CantSetMenuBar:
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CantGetNibRef:
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return err;
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}
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static const void* myGetBytesPointer(void* info) {
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return info;
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}
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static void myReleaseBytePointer(void* info, const void* pointer) {
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pointer = 0;
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}
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static size_t myGetBytesAtPosition(void* info, void* buffer, off_t pos, size_t count) {
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memcpy(buffer, (const char*)info + pos, count);
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return count;
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}
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static void myReleaseInfo(void* info) {
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}
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static void TestDraw(CGContextRef cg, CGRect bounds) {
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const int w = 64;
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const int h = 64;
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uint32_t data[w*h];
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int i;
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for (i = 0; i < w*h; i++) {
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data[i] = 0x00008888;
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}
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CGDataProviderDirectCallbacks procs;
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procs.version = 0;
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procs.getBytePointer = myGetBytesPointer;
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procs.releaseBytePointer = myReleaseBytePointer;
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procs.getBytesAtPosition = myGetBytesAtPosition;
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procs.releaseInfo = myReleaseInfo;
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CGColorSpaceRef space = CGColorSpaceCreateWithName(kCGColorSpaceGenericRGB);
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size_t size = w * h * 4;
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CGDataProviderRef dataRef = CGDataProviderCreateDirect(data, size, &procs);
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CGImageRef ref = CGImageCreate(w, h, 8, 32, w*4,
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space,
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kCGBitmapByteOrder32Little | kCGImageAlphaPremultipliedLast,
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dataRef,
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NULL,
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false,
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kCGRenderingIntentDefault);
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CGColorSpaceRelease(space);
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CGDataProviderRelease(dataRef);
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CGRect r = CGRectMake(0, 0, w, h);
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CGContextDrawImage(cg, r, ref);
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CGImageRelease(ref);
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}
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static OSStatus MyDrawEventHandler(EventHandlerCallRef myHandler, EventRef event, void *userData)
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{
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// NOTE: GState is save/restored by the HIView system doing the callback, so the draw handler doesn't need to do it
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OSStatus status = noErr;
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CGContextRef context;
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HIRect bounds;
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// Get the CGContextRef
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status = GetEventParameter (event, kEventParamCGContextRef,
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typeCGContextRef, NULL,
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sizeof (CGContextRef),
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NULL,
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&context);
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if(status != noErr){
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fprintf(stderr, "Got error %d getting the context!\n", status);
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return status;
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}
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// Get the bounding rectangle
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HIViewGetBounds ((HIViewRef) userData, &bounds);
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// Flip the coordinates by translating and scaling. This produces a
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// coordinate system that matches the Quartz default coordinate system
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// with the origin in the lower-left corner with the y axis pointing up.
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// CGContextTranslateCTM (context, 0, bounds.size.height);
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// CGContextScaleCTM (context, 1.0, -1.0);
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// DoDraw(context, bounds);
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TestDraw(context, bounds);
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return status;
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}
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static void MyGammaSliderProc( ControlHandle control, SInt16 part )
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{
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gGammaValue = GetControl32BitValue(control);
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HIViewSetNeedsDisplay(gMyHIView, true);
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HIViewRender(gMyHIView);
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}
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|
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// Handle command-process events at the application level
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static pascal OSStatus DoAppCommandProcess(EventHandlerCallRef nextHandler, EventRef theEvent, void* userData)
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{
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#pragma unused (nextHandler, userData)
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HICommand aCommand;
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OSStatus result = eventNotHandledErr;
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GetEventParameter(theEvent, kEventParamDirectObject, typeHICommand, NULL, sizeof(HICommand), NULL, &aCommand);
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switch (aCommand.commandID)
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{
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case kHICommandPageSetup:
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if(gPageFormat == NULL)
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gPageFormat = CreateDefaultPageFormat();
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if(gPageFormat)
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(void)DoPageSetup(gPageFormat);
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result = noErr;
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break;
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case kHICommandPrint:
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if(gPageFormat == NULL)
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gPageFormat = CreateDefaultPageFormat();
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if(gPageFormat)
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(void)DoPrint(gPageFormat);
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result = noErr;
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break;
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case kHICommandAbout:
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DoAboutBox();
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result = noErr;
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break;
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default:
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break;
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case kHICommandQuit:
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QuitApplicationEventLoop();
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result = noErr;
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break;
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}
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HiliteMenu(0);
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return result;
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}
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static void DoAboutBox()
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{
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CFStringRef outString = NULL;
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SInt16 alertItemHit = 0;
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Str255 stringBuf;
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outString = CFCopyLocalizedString(kAboutBoxStringKey, NULL);
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if (outString != NULL)
|
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{
|
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if (CFStringGetPascalString (outString, stringBuf, sizeof(stringBuf), GetApplicationTextEncoding()))
|
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{
|
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StandardAlert(kAlertStopAlert, stringBuf, NULL, NULL, &alertItemHit);
|
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}
|
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CFRelease (outString);
|
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}
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}
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|
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// -----------------------------------------------------------------------
|
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static PMPageFormat CreateDefaultPageFormat(void)
|
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{
|
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OSStatus err = noErr, tempErr;
|
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PMPageFormat pageFormat = NULL;
|
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PMPrintSession printSession;
|
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err = PMCreateSession(&printSession);
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if(!err){
|
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err = PMCreatePageFormat(&pageFormat); // we own a reference to this page format
|
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if(err == noErr)
|
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err = PMSessionDefaultPageFormat(printSession, pageFormat);
|
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|
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tempErr = PMRelease(printSession);
|
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if(!err)err = tempErr;
|
||||
}
|
||||
if(err){
|
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fprintf(stderr, "got an error = %d creating the default page format\n", err);
|
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}
|
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return pageFormat;
|
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}
|
||||
|
||||
// -----------------------------------------------------------------
|
||||
static OSStatus DoPageSetup(PMPageFormat pageFormat)
|
||||
{
|
||||
OSStatus err = noErr;
|
||||
PMPrintSession printSession;
|
||||
err = PMCreateSession(&printSession);
|
||||
if(!err){
|
||||
Boolean accepted;
|
||||
if(!err) // validate the page format we're going to pass to the dialog code
|
||||
err = PMSessionValidatePageFormat(printSession, pageFormat, kPMDontWantBoolean);
|
||||
if(!err){
|
||||
err = PMSessionPageSetupDialog(printSession, pageFormat, &accepted);
|
||||
}
|
||||
(void)PMRelease(printSession);
|
||||
}
|
||||
|
||||
if(err && err != kPMCancel)
|
||||
fprintf(stderr, "Got an error %d in Page Setup\n", err);
|
||||
|
||||
return err;
|
||||
} // DoPageSetup
|
||||
|
||||
// -------------------------------------------------------------------------------
|
||||
static OSStatus DoPrint(PMPageFormat pageFormat)
|
||||
{
|
||||
OSStatus err = noErr;
|
||||
UInt32 minPage = 1, maxPage = 1;
|
||||
PMPrintSession printSession;
|
||||
err = PMCreateSession(&printSession);
|
||||
if(err == noErr){
|
||||
// validate the page format we're going to use
|
||||
err = PMSessionValidatePageFormat(printSession,
|
||||
pageFormat,
|
||||
kPMDontWantBoolean);
|
||||
if (err == noErr)
|
||||
{
|
||||
PMPrintSettings printSettings = NULL;
|
||||
err = PMCreatePrintSettings(&printSettings);
|
||||
if(err == noErr)
|
||||
err = PMSessionDefaultPrintSettings(printSession, printSettings);
|
||||
|
||||
if (err == noErr)
|
||||
err = PMSetPageRange(printSettings, minPage, maxPage);
|
||||
|
||||
if (err == noErr)
|
||||
{
|
||||
Boolean accepted;
|
||||
err = PMSessionPrintDialog(printSession, printSettings,
|
||||
pageFormat,
|
||||
&accepted);
|
||||
if(accepted){
|
||||
err = MyDoPrintLoop(printSession, pageFormat, printSettings);
|
||||
}
|
||||
}
|
||||
if(printSettings)
|
||||
(void)PMRelease(printSettings);
|
||||
}
|
||||
|
||||
(void)PMRelease(printSession); // ignoring error since we already have one
|
||||
}
|
||||
|
||||
if(err && err != kPMCancel)
|
||||
fprintf(stderr, "Got an error %d in Print\n", err);
|
||||
return err;
|
||||
}
|
||||
|
||||
// --------------------------------------------------------------------------------------
|
||||
static OSStatus MyDoPrintLoop(PMPrintSession printSession, PMPageFormat pageFormat, PMPrintSettings printSettings)
|
||||
{
|
||||
OSStatus err = noErr;
|
||||
OSStatus tempErr = noErr;
|
||||
UInt32 firstPage, lastPage, totalDocPages = 1;
|
||||
|
||||
if(!err)
|
||||
err = PMGetFirstPage(printSettings, &firstPage);
|
||||
|
||||
if (!err)
|
||||
err = PMGetLastPage(printSettings, &lastPage);
|
||||
|
||||
if(!err && lastPage > totalDocPages){
|
||||
// don't draw more than the number of pages in our document
|
||||
lastPage = totalDocPages;
|
||||
}
|
||||
|
||||
if (!err) // tell the printing system the number of pages we are going to print
|
||||
err = PMSetLastPage(printSettings, lastPage, false);
|
||||
|
||||
if (!err)
|
||||
{
|
||||
err = PMSessionBeginCGDocument(printSession, printSettings, pageFormat);
|
||||
if (!err){
|
||||
UInt32 pageNumber = firstPage;
|
||||
// need to check errors from our print loop and errors from the session for each
|
||||
// time around our print loop before calling our BeginPageProc
|
||||
while(pageNumber <= lastPage && err == noErr && PMSessionError(printSession) == noErr)
|
||||
{
|
||||
err = PMSessionBeginPage(printSession, pageFormat, NULL);
|
||||
if (!err){
|
||||
CGContextRef printingContext = NULL;
|
||||
err = PMSessionGetCGGraphicsContext(printSession, &printingContext);
|
||||
if(!err){
|
||||
PMRect pageRect;
|
||||
|
||||
PMGetAdjustedPaperRect(pageFormat, &pageRect);
|
||||
DoDraw(printingContext, CGRectMake(pageRect.left, pageRect.top, pageRect.right - pageRect.left, pageRect.bottom - pageRect.top));
|
||||
}
|
||||
// we must call EndPage if BeginPage returned noErr
|
||||
tempErr = PMSessionEndPage(printSession);
|
||||
|
||||
if(!err)err = tempErr;
|
||||
}
|
||||
pageNumber++;
|
||||
} // end while loop
|
||||
|
||||
// we must call EndDocument if BeginDocument returned noErr
|
||||
tempErr = PMSessionEndDocument(printSession);
|
||||
|
||||
if(!err)err = tempErr;
|
||||
if(!err)
|
||||
err = PMSessionError(printSession);
|
||||
}
|
||||
}
|
||||
return err;
|
||||
}
|
||||
|
||||
|
||||
|
||||
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