-
Notifications
You must be signed in to change notification settings - Fork 3
/
listing1.html
executable file
·498 lines (433 loc) · 19.6 KB
/
listing1.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd">
<html>
<head>
<!-- BEGIN META TAG INFO -->
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<link rel="home" href="http://developer.apple.com/">
<link rel="find" href="http://developer.apple.com/search/">
<link rel="stylesheet" type="text/css" href="../../documentation/css/adcstyle.css" title="fonts">
<script language="JavaScript" src="../../documentation/js/adc.js" type="text/javascript"></script>
<!-- END META TAG INFO -->
<!-- BEGIN TITLE -->
<title>JustDraw - /JustDraw-CG.c</title>
<!-- END TITLE -->
<script language="JavaScript">
function JumpToNewPage() {
window.location=document.scpopupmenu.gotop.value;
return true;
}
</script>
</head>
<!-- BEGIN BODY OPEN -->
<body>
<!--END BODY OPEN -->
<!-- START CENTER OPEN -->
<center>
<!-- END CENTER OPEN -->
<!-- BEGIN LOGO AND SEARCH -->
<!--#include virtual="/includes/adcnavbar"-->
<!-- END LOGO AND SEARCH -->
<!-- START BREADCRUMB -->
<div id="breadcrumb">
<table width="680" border="0" cellpadding="0" cellspacing="0">
<tr>
<td scope="row"><img width="340" height="10" src="images/1dot.gif" alt=""></td>
<td><img width="340" height="10" src="images/1dot.gif" alt=""></td>
</tr>
<tr valign="middle">
<td align="left" colspan="2">
<a href="http://developer.apple.com/">ADC Home</a> > <a href="../../referencelibrary/index.html">Reference Library</a> > <a href="../../samplecode/index.html">Sample Code</a> > <a href="../../samplecode/GraphicsImaging/index.html">Graphics & Imaging</a> > <a href="../../samplecode/GraphicsImaging/idxCarbon-date.html">Carbon</a> > <A HREF="javascript:location.replace('index.html');">JustDraw</A> >
</td>
</tr>
<tr>
<td colspan="2" scope="row"><img width="680" height="35" src="images/1dot.gif" alt=""></td>
</tr>
</table>
</div>
<!-- END BREADCRUMB -->
<!-- START MAIN CONTENT -->
<!-- START TITLE GRAPHIC AND INTRO-->
<table width="680" border="0" cellpadding="0" cellspacing="0">
<tr align="left" valign="top">
<td><h1><div id="pagehead">JustDraw</div></h1></td>
</tr>
</table>
<!-- END TITLE GRAPHIC AND INTRO -->
<!-- START WIDE COLUMN -->
<table width="680" border="0" cellpadding="0" cellspacing="0">
<tr align="left" valign="top">
<td id="scdetails">
<h2>/JustDraw-CG.c</h2>
<form name="scpopupmenu" onSubmit="return false;" method=post>
<p><strong>View Source Code:</strong>
<select name="gotop" onChange="JumpToNewPage();" style="width:340px"><option selected value="ingnore">Select File</option>
<option value="listing1.html">/JustDraw-CG.c</option>
<option value="listing2.html">/JustDraw-QD.c</option></select>
</p>
</form>
<p><strong><a href="JustDraw.zip">Download Sample</a></strong> (“JustDraw.zip”, 30.9K)<BR>
<strong><a href="JustDraw.dmg">Download Sample</a></strong> (“JustDraw.dmg”, 95.9K)</p>
<!--
<p><strong><a href="#">Download Sample</a></strong> (“filename.sit”, 500K)</p>
-->
</td>
</tr>
<tr>
<td scope="row"><img width="680" height="10" src="images/1dot.gif" alt=""><br>
<img height="1" width="680" src="images/1dot_919699.gif" alt=""><br>
<img width="680" height="20" src="images/1dot.gif" alt=""></td>
</tr>
<tr>
<td scope="row">
<!--googleon: index -->
<pre class="sourcecodebox">/*
File: JustDraw-CG.c
Version: 1.0
Disclaimer: 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.
Copyright © 2005 Apple Computer, Inc., All Rights Reserved
*/
#include <Carbon/Carbon.h>
enum {
eSelectCGText = 0,
eSelectHIThemeText = 1,
eSelectATSUIText = 2
};
Boolean gUseQD = false;
Boolean gUseHIViewCoordinates = true;
int gTextDrawSelect = eSelectCGText;
//----------------------------------------------------------------------------------------------
static void DrawWithATSUI(CGContextRef ctx, float posX, float posY, CFStringRef str, Str255 fontName, float fontSize)
{
size_t textLength = CFStringGetLength(str);
UniChar* theUnicodeText = (UniChar*)calloc(textLength, sizeof(UniChar));
CFStringGetCharacters(str, CFRangeMake(0, textLength), theUnicodeText);
ATSUFontID atsuFontID;
ATSUFindFontFromName(&fontName[1], fontName[0], kFontFamilyName, kFontNoPlatformCode, kFontNoScriptCode, kFontNoLanguageCode, &atsuFontID);
Fixed atsuSize = FloatToFixed(fontSize);
ATSUAttributeTag theTags [2] = { kATSUFontTag, kATSUSizeTag };
ByteCount theSizes [2] = { sizeof(ATSUFontID), sizeof(Fixed) };
ATSUAttributeValuePtr theValues[2];
theValues[0] = &atsuFontID;
theValues[1] = &atsuSize;
ATSUStyle theStyle;
ATSUCreateStyle(&theStyle);
ATSUSetAttributes( theStyle, 2, theTags, theSizes, theValues );
ATSUTextLayout theLayout;
ATSUCreateTextLayoutWithTextPtr(theUnicodeText, 0, textLength, textLength, 1, &textLength, &theStyle, &theLayout);
// Ask ATSUI to use our ctx
theTags [0] = kATSUCGContextTag;
theSizes [0] = sizeof(CGContextRef);
theValues[0] = &ctx;
ATSUSetLayoutControls(theLayout, 1, theTags, theSizes, theValues);
ATSUDrawText(theLayout, kATSUFromTextBeginning, kATSUToTextEnd, FloatToFixed(posX), FloatToFixed(posY) );
free(theUnicodeText);
ATSUDisposeStyle(theStyle);
ATSUDisposeTextLayout(theLayout);
}
//----------------------------------------------------------------------------------------------
static void DrawWithHIThemeText(CGContextRef ctx, float posX, float posY, CFStringRef str, short qdFontID, float fontSize)
{
ThemeDrawState state = kThemeStateActive;
ThemeFontID themeFontID = kThemeCurrentPortFont; // the only way to stay in control of fontID and fontSize - discouraged!
// should use e.g. kThemeApplicationFont
HIThemeTextInfo textInfo = { 0, // version
state,
themeFontID,
kHIThemeTextHorizontalFlushLeft,
kHIThemeTextVerticalFlushTop,
kHIThemeTextBoxOptionNone,
kHIThemeTextTruncationNone,
0,
0
};
HIThemeOrientation orientation = (gUseHIViewCoordinates ? kHIThemeOrientationNormal : kHIThemeOrientationInverted);
Point hv;
SInt16 baseLine;
TextFont(kFontIDGeneva); // bad QD - no cookie!
TextSize(fontSize); // (ditto)
GetThemeTextDimensions(str, themeFontID, state, false, &hv, &baseLine);
HIRect bounds;
if (gUseHIViewCoordinates)
bounds = CGRectMake(posX, posY - hv.v - baseLine, hv.h, hv.v);
else // it really doesn't make much sense to use HIThemeDrawTextBox without using HIViewCoordinates ...
bounds = CGRectMake(posX, posY + baseLine, hv.h, hv.v);
HIThemeDrawTextBox(str, &bounds, &textInfo, ctx, orientation);
}
//----------------------------------------------------------------------------------------------
static void JustDrawSomething(CGContextRef ctx, HIRect viewBounds)
{
Str255 s = "\pHello World!";
Str255 fontName = "\pGeneva";
if (gUseQD)
{
// HIViews have set up the port for us, already - just draw!
MoveTo(0, 0);
LineTo(100, 100);
TextFont(kFontIDGeneva);
TextSize(18);
DrawString(s);
}
else
{
if (gUseHIViewCoordinates)
{
// We can keep the hard-coded QD coordinates
CGContextMoveToPoint(ctx, 0, 0);
CGContextAddLineToPoint(ctx, 100, 100);
}
else // our coordinates need to be recalculated for the default Quartz coordinates
{
CGContextMoveToPoint(ctx, 0, viewBounds.size.height);
CGContextAddLineToPoint(ctx, 100, viewBounds.size.height - 100);
}
CGContextStrokePath(ctx); // This draws the line
// And how about replacing the DrawString()?
// First, convert to a CFString, once and for all
CFStringRef str = CFStringCreateWithPascalString(NULL, s, kCFStringEncodingMacRoman);
switch (gTextDrawSelect)
{
case eSelectCGText:
fontName[fontName[0] + 1] = 0; // make (char*)&fontName[1] a C-string
CGContextSelectFont(ctx, (char*)&fontName[1], 18, kCGEncodingMacRoman);
if (gUseHIViewCoordinates)
{
// Compensate in the text matrix for the inverted y-axis
CGContextSetTextMatrix(ctx, CGAffineTransformMakeScale(1, -1));
CGContextShowTextAtPoint(ctx, 100, 100, (char*)&s[1], s[0]);
// Set it back - the text matrix is NOT part of the GState,
// and we might get confused if we left the text mirroring around.
CGContextSetTextMatrix(ctx, CGAffineTransformIdentity);
}
else // the text is drawn correctly, but the coordinates need to be recalculated
{
CGContextShowTextAtPoint(ctx, 100, viewBounds.size.height - 100, (char*)&s[1], s[0]);
}
break;
case eSelectHIThemeText:
if (gUseHIViewCoordinates)
DrawWithHIThemeText(ctx, 100, 100, str, kFontIDGeneva, 18);
else // it really doesn't make much sense to use HIThemeDrawTextBox without using HIViewCoordinates ...
DrawWithHIThemeText(ctx, 100, viewBounds.size.height - 100, str, kFontIDGeneva, 18);
break;
case eSelectATSUIText:
if (gUseHIViewCoordinates) // ATSUI cannot deal with the flipped HIView coordinate system;
{ // it always sets the text matrix to identity - we need to work around with the CTM
// and consequently use recalculated coordinates, no matter what
CGContextSaveGState(ctx);
CGContextConcatCTM(ctx, CGAffineTransformMake(1, 0, 0, -1, 0, viewBounds.size.height));
DrawWithATSUI(ctx, 100, viewBounds.size.height - 100, str, fontName, 18);
CGContextRestoreGState(ctx); // this resets the CTM to what it was
}
else
{
DrawWithATSUI(ctx, 100, viewBounds.size.height - 100, str, fontName, 18);
}
break;
}
CFRelease(str);
}
}
//----------------------------------------------------------------------------------------------
// We want to show the current global settings for the drawing in the window title.
// Unfortunately, it appears that calling SetWindowTitle from within a Draw handler doesn't
// work reliably (rdar://4123251). We are working around the problem by calling it
// from a one-shot EventLoopTimer, which only fires after all composited drawing is finished.
static void ShowGlobalsInWindowTitle(WindowRef w)
{
Str255 qdString = "\pQD - DrawString";
Str255 cgString = "\pCG - ";
Str255 cgText = "\pCGContextShowText";
Str255 hiText = "\pHIThemeDrawText";
Str255 atsuiT = "\pATSUIDrawText";
Str255 hiviewC = "\p - HIViewCoords";
Str255 title;
char* p;
size_t n = 0;
if (gUseQD)
memcpy(title, qdString, qdString[0] + 1);
else
{
memcpy(title, cgString, cgString[0] + 1);
switch (gTextDrawSelect)
{
case eSelectCGText: p = (char*)&cgText[1]; n = cgText[0]; break;
case eSelectHIThemeText: p = (char*)&hiText[1]; n = hiText[0]; break;
case eSelectATSUIText: p = (char*)&atsuiT[1]; n = atsuiT[0]; break;
}
memcpy(&title[title[0] + 1], p, n);
title[0] += n;
if (gUseHIViewCoordinates)
{
memcpy(&title[title[0] + 1], &hiviewC[1], hiviewC[0]);
title[0] += hiviewC[0];
}
}
CFStringRef str = CFStringCreateWithPascalString(NULL, title, kCFStringEncodingMacRoman);
SetWindowTitleWithCFString(w, str);
CFRelease(str);
}
//----------------------------------------------------------------------------------------------
static void OneShotTimer(EventLoopTimerRef inTimer, void* inRefCon)
{
ShowGlobalsInWindowTitle((WindowRef)inRefCon);
RemoveEventLoopTimer(inTimer);
}
//----------------------------------------------------------------------------------------------
OSStatus DrawHandler(EventHandlerCallRef inHandlerCallRef, EventRef inEvent, void* inUserData)
{
CGContextRef ctx;
GetEventParameter( inEvent, kEventParamCGContextRef, typeCGContextRef, NULL, sizeof(CGContextRef), NULL, &ctx );
CallNextEventHandler(inHandlerCallRef, inEvent); // this erases the view for us
HIRect viewBounds;
HIViewRef theView = (HIViewRef)inUserData;
HIViewGetBounds(theView, &viewBounds);
if (gUseHIViewCoordinates == false) // i.e. we want to have the default Quartz coordinate system
{
CGContextConcatCTM(ctx, CGAffineTransformMake(1, 0, 0, -1, 0, viewBounds.size.height));
// Now the origina is at the bottom-left of the view, and the y axis goes upwards.
}
JustDrawSomething(ctx, viewBounds);
// See comment to ShowGlobalsInWindowTitle, above
InstallEventLoopTimer(GetCurrentEventLoop(), 0, 0, OneShotTimer, GetControlOwner(theView), NULL);
return noErr;
}
//----------------------------------------------------------------------------------------------
OSStatus KeyHandler(EventHandlerCallRef inHandlerCallRef, EventRef inEvent, void* inUserData)
{
UInt8 ch;
OSStatus err = GetEventParameter( inEvent,
kEventParamKeyMacCharCodes,
typeChar,
NULL,
sizeof( char ),
NULL,
&ch );
if (err == noErr)
{
if (ch == '0')
gTextDrawSelect = eSelectCGText;
else if (ch == '1')
gTextDrawSelect = eSelectHIThemeText;
else if (ch == '2')
gTextDrawSelect = eSelectATSUIText;
else if (ch == 'h')
gUseHIViewCoordinates = !gUseHIViewCoordinates;
else
// any other key just toggles between QD and CG
gUseQD = !gUseQD;
WindowRef w = (WindowRef)inUserData;
HIViewRef contentView;
HIViewFindByID( HIViewGetRoot(w), kHIViewWindowContentID, &contentView );
HIViewSetNeedsDisplay(contentView, true);
}
return err;
}
//----------------------------------------------------------------------------------------------
int main(int argc, char* argv[])
{
IBNibRef nibRef;
WindowRef window;
OSStatus err;
// Create a Nib reference passing the name of the nib file (without the .nib extension)
// CreateNibReference only searches into the application bundle.
err = CreateNibReference(CFSTR("main"), &nibRef);
require_noerr( err, CantGetNibRef );
// Once the nib reference is created, set the menu bar. "MainMenu" is the name of the menu bar
// object. This name is set in InterfaceBuilder when the nib is created.
err = SetMenuBarFromNib(nibRef, CFSTR("MenuBar"));
require_noerr( err, CantSetMenuBar );
// Then create a window. "MainWindow" is the name of the window object. This name is set in
// InterfaceBuilder when the nib is created.
err = CreateWindowFromNib(nibRef, CFSTR("MainWindow"), &window);
require_noerr( err, CantCreateWindow );
// We don't need the nib reference anymore.
DisposeNibReference(nibRef);
///////////////////////////////////////////////////////////////////
// Install DrawHandler on contentView
EventTypeSpec drawEvent = {kEventClassControl, kEventControlDraw};
EventTypeSpec keyEvent = {kEventClassKeyboard, kEventRawKeyDown};
HIViewRef contentView;
HIViewFindByID( HIViewGetRoot(window), kHIViewWindowContentID, &contentView );
err = InstallEventHandler(HIViewGetEventTarget(contentView), DrawHandler, 1, &drawEvent, contentView, NULL);
require_noerr( err, CantInstallHandler );
// Also install KeyHandler on the window so we can control the drawing
err = InstallEventHandler(GetWindowEventTarget(window), KeyHandler, 1, &keyEvent, window, NULL);
require_noerr( err, CantInstallHandler );
///////////////////////////////////////////////////////////////////
// The window was created hidden so show it.
ShowWindow( window );
// Call the event loop
RunApplicationEventLoop();
CantInstallHandler:
CantCreateWindow:
CantSetMenuBar:
CantGetNibRef:
return err;
}
</pre>
<!--googleoff: index -->
</td>
</tr>
</table>
<!-- END WIDE COLUMN -->
<!-- END MAIN CONTENT -->
<table width="680" border="0" cellpadding="0" cellspacing="0">
<tr>
<td><div style="width: 100%; height: 1px; background-color: #919699; margin-top: 5px; margin-bottom: 15px"></div></td>
</tr>
<tr>
<td align="center"><br/>
<table border="0" cellpadding="0" cellspacing="0" class="graybox">
<tr>
<th>Did this document help you?</th>
</tr>
<tr>
<td>
<div style="margin-bottom: 8px"><a href="http://developer.apple.com/feedback/?v=1&url=/samplecode/JustDraw/listing1.html%3Fid%3DDTS10003600-1.0&media=dvd" target=_new>Yes</a>: Tell us what works for you.</div>
<div style="margin-bottom: 8px"><a href="http://developer.apple.com/feedback/?v=2&url=/samplecode/JustDraw/listing1.html%3Fid%3DDTS10003600-1.0&media=dvd" target=_new>It’s good, but:</a> Report typos, inaccuracies, and so forth.</div>
<div><a href="http://developer.apple.com/feedback/?v=3&url=/samplecode/JustDraw/listing1.html%3Fid%3DDTS10003600-1.0&media=dvd" target=_new>It wasn’t helpful</a>: Tell us what would have helped.</div>
</td>
</tr>
</table>
</td>
</tr>
</table>
<!-- START BOTTOM APPLE NAVIGATION -->
<!--#include virtual="/includes/footer"-->
<!-- END BOTTOM APPLE NAVIGATION -->
<!-- START CENTER CLOSE -->
</center>
<!-- END CENTER CLOSE -->
</body>
</html>