1 /* 2 * Copyright 2011 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #import "SkNSView.h" 9 #include "SkCanvas.h" 10 #include "SkSurface.h" 11 #include "SkCGUtils.h" 12 #include "SkEvent.h" 13 SK_COMPILE_ASSERT(SK_SUPPORT_GPU, not_implemented_for_non_gpu_build); 14 #include <OpenGL/gl.h> 15 16 //#define FORCE_REDRAW 17 // Can be dropped when we no longer support 10.6. 18 #define RETINA_API_AVAILABLE (defined(MAC_OS_X_VERSION_10_7) && \ 19 MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_7) 20 @implementation SkNSView 21 @synthesize fWind, fTitle, fOptionsDelegate, fGLContext; 22 23 - (id)initWithCoder:(NSCoder*)coder { 24 if ((self = [super initWithCoder:coder])) { 25 self = [self initWithDefaults]; 26 [self setUpWindow]; 27 } 28 return self; 29 } 30 31 - (id)initWithFrame:(NSRect)frameRect { 32 if ((self = [super initWithFrame:frameRect])) { 33 self = [self initWithDefaults]; 34 [self setUpWindow]; 35 } 36 return self; 37 } 38 39 - (id)initWithDefaults { 40 #if RETINA_API_AVAILABLE 41 [self setWantsBestResolutionOpenGLSurface:YES]; 42 #endif 43 fRedrawRequestPending = false; 44 fWind = NULL; 45 return self; 46 } 47 48 - (void)setUpWindow { 49 [[NSNotificationCenter defaultCenter] addObserver:self 50 selector:@selector(backingPropertiesChanged:) 51 name:@"NSWindowDidChangeBackingPropertiesNotification" 52 object:[self window]]; 53 if (fWind) { 54 fWind->setVisibleP(true); 55 NSSize size = self.frame.size; 56 #if RETINA_API_AVAILABLE 57 size = [self convertSizeToBacking:self.frame.size]; 58 #endif 59 fWind->resize((int) size.width, (int) size.height, 60 kN32_SkColorType); 61 } 62 } 63 64 -(BOOL) isFlipped { 65 return YES; 66 } 67 68 - (BOOL)acceptsFirstResponder { 69 return YES; 70 } 71 72 - (float)scaleFactor { 73 NSWindow *window = [self window]; 74 #if RETINA_API_AVAILABLE 75 if (window) { 76 return [window backingScaleFactor]; 77 } 78 return [[NSScreen mainScreen] backingScaleFactor]; 79 #else 80 if (window) { 81 return [window userSpaceScaleFactor]; 82 } 83 return [[NSScreen mainScreen] userSpaceScaleFactor]; 84 #endif 85 } 86 87 - (void)backingPropertiesChanged:(NSNotification *)notification { 88 CGFloat oldBackingScaleFactor = (CGFloat)[ 89 [notification.userInfo objectForKey:@"NSBackingPropertyOldScaleFactorKey"] doubleValue 90 ]; 91 CGFloat newBackingScaleFactor = [self scaleFactor]; 92 if (oldBackingScaleFactor == newBackingScaleFactor) { 93 return; 94 } 95 96 // TODO: need a better way to force a refresh (that works). 97 // [fGLContext update] does not appear to update if the point size has not changed, 98 // even if the backing size has changed. 99 [self setFrameSize:NSMakeSize(self.frame.size.width + 1, self.frame.size.height + 1)]; 100 } 101 102 - (void)resizeSkView:(NSSize)newSize { 103 #if RETINA_API_AVAILABLE 104 newSize = [self convertSizeToBacking:newSize]; 105 #endif 106 if (fWind && (fWind->width() != newSize.width || fWind->height() != newSize.height)) { 107 fWind->resize((int) newSize.width, (int) newSize.height); 108 if (fGLContext) { 109 glClear(GL_STENCIL_BUFFER_BIT); 110 [fGLContext update]; 111 } 112 } 113 } 114 115 - (void) setFrameSize:(NSSize)newSize { 116 [super setFrameSize:newSize]; 117 [self resizeSkView:newSize]; 118 } 119 120 - (void)dealloc { 121 delete fWind; 122 self.fGLContext = nil; 123 self.fTitle = nil; 124 [super dealloc]; 125 } 126 127 //////////////////////////////////////////////////////////////////////////////// 128 129 - (void)drawSkia { 130 fRedrawRequestPending = false; 131 if (fWind) { 132 SkAutoTUnref<SkSurface> surface(fWind->createSurface()); 133 fWind->draw(surface->getCanvas()); 134 #ifdef FORCE_REDRAW 135 fWind->inval(NULL); 136 #endif 137 } 138 } 139 140 - (void)setSkTitle:(const char *)title { 141 self.fTitle = [NSString stringWithUTF8String:title]; 142 [[self window] setTitle:self.fTitle]; 143 } 144 145 - (BOOL)onHandleEvent:(const SkEvent&)evt { 146 return false; 147 } 148 149 #include "SkOSMenu.h" 150 - (void)onAddMenu:(const SkOSMenu*)menu { 151 [self.fOptionsDelegate view:self didAddMenu:menu]; 152 } 153 154 - (void)onUpdateMenu:(const SkOSMenu*)menu { 155 [self.fOptionsDelegate view:self didUpdateMenu:menu]; 156 } 157 158 - (void)postInvalWithRect:(const SkIRect*)r { 159 if (!fRedrawRequestPending) { 160 fRedrawRequestPending = true; 161 [self setNeedsDisplay:YES]; 162 [self performSelector:@selector(drawSkia) withObject:nil afterDelay:0]; 163 } 164 } 165 /////////////////////////////////////////////////////////////////////////////// 166 167 #include "SkKey.h" 168 enum { 169 SK_MacReturnKey = 36, 170 SK_MacDeleteKey = 51, 171 SK_MacEndKey = 119, 172 SK_MacLeftKey = 123, 173 SK_MacRightKey = 124, 174 SK_MacDownKey = 125, 175 SK_MacUpKey = 126, 176 SK_Mac0Key = 0x52, 177 SK_Mac1Key = 0x53, 178 SK_Mac2Key = 0x54, 179 SK_Mac3Key = 0x55, 180 SK_Mac4Key = 0x56, 181 SK_Mac5Key = 0x57, 182 SK_Mac6Key = 0x58, 183 SK_Mac7Key = 0x59, 184 SK_Mac8Key = 0x5b, 185 SK_Mac9Key = 0x5c 186 }; 187 188 static SkKey raw2key(UInt32 raw) 189 { 190 static const struct { 191 UInt32 fRaw; 192 SkKey fKey; 193 } gKeys[] = { 194 { SK_MacUpKey, kUp_SkKey }, 195 { SK_MacDownKey, kDown_SkKey }, 196 { SK_MacLeftKey, kLeft_SkKey }, 197 { SK_MacRightKey, kRight_SkKey }, 198 { SK_MacReturnKey, kOK_SkKey }, 199 { SK_MacDeleteKey, kBack_SkKey }, 200 { SK_MacEndKey, kEnd_SkKey }, 201 { SK_Mac0Key, k0_SkKey }, 202 { SK_Mac1Key, k1_SkKey }, 203 { SK_Mac2Key, k2_SkKey }, 204 { SK_Mac3Key, k3_SkKey }, 205 { SK_Mac4Key, k4_SkKey }, 206 { SK_Mac5Key, k5_SkKey }, 207 { SK_Mac6Key, k6_SkKey }, 208 { SK_Mac7Key, k7_SkKey }, 209 { SK_Mac8Key, k8_SkKey }, 210 { SK_Mac9Key, k9_SkKey } 211 }; 212 213 for (unsigned i = 0; i < SK_ARRAY_COUNT(gKeys); i++) 214 if (gKeys[i].fRaw == raw) 215 return gKeys[i].fKey; 216 return kNONE_SkKey; 217 } 218 219 - (void)keyDown:(NSEvent *)event { 220 if (NULL == fWind) 221 return; 222 223 SkKey key = raw2key([event keyCode]); 224 if (kNONE_SkKey != key) 225 fWind->handleKey(key); 226 else{ 227 unichar c = [[event characters] characterAtIndex:0]; 228 fWind->handleChar((SkUnichar)c); 229 } 230 } 231 232 - (void)keyUp:(NSEvent *)event { 233 if (NULL == fWind) 234 return; 235 236 SkKey key = raw2key([event keyCode]); 237 if (kNONE_SkKey != key) 238 fWind->handleKeyUp(key); 239 // else 240 // unichar c = [[event characters] characterAtIndex:0]; 241 } 242 243 static const struct { 244 unsigned fNSModifierMask; 245 unsigned fSkModifierMask; 246 } gModifierMasks[] = { 247 { NSAlphaShiftKeyMask, kShift_SkModifierKey }, 248 { NSShiftKeyMask, kShift_SkModifierKey }, 249 { NSControlKeyMask, kControl_SkModifierKey }, 250 { NSAlternateKeyMask, kOption_SkModifierKey }, 251 { NSCommandKeyMask, kCommand_SkModifierKey }, 252 }; 253 254 static unsigned convertNSModifiersToSk(NSUInteger nsModi) { 255 unsigned skModi = 0; 256 for (size_t i = 0; i < SK_ARRAY_COUNT(gModifierMasks); ++i) { 257 if (nsModi & gModifierMasks[i].fNSModifierMask) { 258 skModi |= gModifierMasks[i].fSkModifierMask; 259 } 260 } 261 return skModi; 262 } 263 264 - (void)mouseDown:(NSEvent *)event { 265 NSPoint p = [event locationInWindow]; 266 unsigned modi = convertNSModifiersToSk([event modifierFlags]); 267 268 if ([self mouse:p inRect:[self bounds]] && fWind) { 269 NSPoint loc = [self convertPoint:p fromView:nil]; 270 #if RETINA_API_AVAILABLE 271 loc = [self convertPointToBacking:loc]; //y-up 272 loc.y = -loc.y; 273 #endif 274 fWind->handleClick((int) loc.x, (int) loc.y, 275 SkView::Click::kDown_State, self, modi); 276 } 277 } 278 279 - (void)mouseDragged:(NSEvent *)event { 280 NSPoint p = [event locationInWindow]; 281 unsigned modi = convertNSModifiersToSk([event modifierFlags]); 282 283 if ([self mouse:p inRect:[self bounds]] && fWind) { 284 NSPoint loc = [self convertPoint:p fromView:nil]; 285 #if RETINA_API_AVAILABLE 286 loc = [self convertPointToBacking:loc]; //y-up 287 loc.y = -loc.y; 288 #endif 289 fWind->handleClick((int) loc.x, (int) loc.y, 290 SkView::Click::kMoved_State, self, modi); 291 } 292 } 293 294 - (void)mouseMoved:(NSEvent *)event { 295 NSPoint p = [event locationInWindow]; 296 unsigned modi = convertNSModifiersToSk([event modifierFlags]); 297 298 if ([self mouse:p inRect:[self bounds]] && fWind) { 299 NSPoint loc = [self convertPoint:p fromView:nil]; 300 #if RETINA_API_AVAILABLE 301 loc = [self convertPointToBacking:loc]; //y-up 302 loc.y = -loc.y; 303 #endif 304 fWind->handleClick((int) loc.x, (int) loc.y, 305 SkView::Click::kMoved_State, self, modi); 306 } 307 } 308 309 - (void)mouseUp:(NSEvent *)event { 310 NSPoint p = [event locationInWindow]; 311 unsigned modi = convertNSModifiersToSk([event modifierFlags]); 312 313 if ([self mouse:p inRect:[self bounds]] && fWind) { 314 NSPoint loc = [self convertPoint:p fromView:nil]; 315 #if RETINA_API_AVAILABLE 316 loc = [self convertPointToBacking:loc]; //y-up 317 loc.y = -loc.y; 318 #endif 319 fWind->handleClick((int) loc.x, (int) loc.y, 320 SkView::Click::kUp_State, self, modi); 321 } 322 } 323 324 /////////////////////////////////////////////////////////////////////////////// 325 #include <OpenGL/OpenGL.h> 326 327 namespace { 328 CGLContextObj createGLContext(int msaaSampleCount) { 329 GLint major, minor; 330 CGLGetVersion(&major, &minor); 331 332 static const CGLPixelFormatAttribute attributes[] = { 333 kCGLPFAStencilSize, (CGLPixelFormatAttribute) 8, 334 kCGLPFAAccelerated, 335 kCGLPFADoubleBuffer, 336 (CGLPixelFormatAttribute)0 337 }; 338 339 CGLPixelFormatObj format; 340 GLint npix = 0; 341 if (msaaSampleCount > 0) { 342 static int kAttributeCount = SK_ARRAY_COUNT(attributes); 343 CGLPixelFormatAttribute msaaAttributes[kAttributeCount + 5]; 344 memcpy(msaaAttributes, attributes, sizeof(attributes)); 345 SkASSERT(0 == msaaAttributes[kAttributeCount - 1]); 346 msaaAttributes[kAttributeCount - 1] = kCGLPFASampleBuffers; 347 msaaAttributes[kAttributeCount + 0] = (CGLPixelFormatAttribute)1; 348 msaaAttributes[kAttributeCount + 1] = kCGLPFAMultisample; 349 msaaAttributes[kAttributeCount + 2] = kCGLPFASamples; 350 msaaAttributes[kAttributeCount + 3] = 351 (CGLPixelFormatAttribute)msaaSampleCount; 352 msaaAttributes[kAttributeCount + 4] = (CGLPixelFormatAttribute)0; 353 CGLChoosePixelFormat(msaaAttributes, &format, &npix); 354 } 355 if (!npix) { 356 CGLChoosePixelFormat(attributes, &format, &npix); 357 } 358 CGLContextObj ctx; 359 CGLCreateContext(format, NULL, &ctx); 360 CGLDestroyPixelFormat(format); 361 362 static const GLint interval = 1; 363 CGLSetParameter(ctx, kCGLCPSwapInterval, &interval); 364 CGLSetCurrentContext(ctx); 365 return ctx; 366 } 367 } 368 369 - (void)viewDidMoveToWindow { 370 [super viewDidMoveToWindow]; 371 372 //Attaching view to fGLContext requires that the view to be part of a window, 373 //and that the NSWindow instance must have a CoreGraphics counterpart (or 374 //it must NOT be deferred or should have been on screen at least once) 375 if ([fGLContext view] != self && nil != self.window) { 376 [fGLContext setView:self]; 377 } 378 } 379 - (bool)attach:(SkOSWindow::SkBackEndTypes)attachType 380 withMSAASampleCount:(int) sampleCount 381 andGetInfo:(SkOSWindow::AttachmentInfo*) info { 382 if (nil == fGLContext) { 383 CGLContextObj ctx = createGLContext(sampleCount); 384 fGLContext = [[NSOpenGLContext alloc] initWithCGLContextObj:ctx]; 385 CGLReleaseContext(ctx); 386 if (NULL == fGLContext) { 387 return false; 388 } 389 [fGLContext setView:self]; 390 } 391 392 [fGLContext makeCurrentContext]; 393 CGLPixelFormatObj format = CGLGetPixelFormat((CGLContextObj)[fGLContext CGLContextObj]); 394 CGLDescribePixelFormat(format, 0, kCGLPFASamples, &info->fSampleCount); 395 CGLDescribePixelFormat(format, 0, kCGLPFAStencilSize, &info->fStencilBits); 396 NSSize size = self.bounds.size; 397 #if RETINA_API_AVAILABLE 398 size = [self convertSizeToBacking:size]; 399 #endif 400 glViewport(0, 0, (int) size.width, (int) size.height); 401 glClearColor(0, 0, 0, 0); 402 glClearStencil(0); 403 glClear(GL_COLOR_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); 404 return true; 405 } 406 407 - (void)detach { 408 [fGLContext release]; 409 fGLContext = nil; 410 } 411 412 - (void)present { 413 if (nil != fGLContext) { 414 [fGLContext flushBuffer]; 415 } 416 } 417 @end 418
