intern/ghost/intern/GHOST_SystemCocoa.mm

@@ -922,9 +922,7 @@ GHOST_TCapabilityFlag GHOST_SystemCocoa::getCapabilities() const
           /* Cocoa has no support for a primary selection clipboard. */
           GHOST_kCapabilityPrimaryClipboard |
           /* Cocoa has no support for sampling colors from the desktop. */
-          GHOST_kCapabilityDesktopSample |
-          /* This Cocoa back-end has not yet implemented image copy/paste. */
-          GHOST_kCapabilityClipboardImages));
+          GHOST_kCapabilityDesktopSample ));
 }
 
 #pragma mark Event handlers

intern/ghost/intern/GHOST_WindowCocoa.hh

@@ -195,6 +195,27 @@ class GHOST_WindowCocoa : public GHOST_Window {
 
   bool isDialog() const;
 
+  /**
+   * Returns GHOST_kSuccess if the clipboard contains an image.
+   */
+  GHOST_TSuccess GHOST_hasClipboardImage(void);
+
+  /**
+   * Get image data from the Clipboard
+   * \param r_width: the returned image width in pixels.
+   * \param r_height: the returned image height in pixels.
+   * \return pointer uint array in RGBA byte order. Caller must free.
+   */
+  uint *GHOST_getClipboardImage(int *r_width, int *r_height);
+
+  /**
+   * Put image data to the Clipboard
+   * \param rgba: uint array in RGBA byte order.
+   * \param width: the image width in pixels.
+   * \param height: the image height in pixels.
+   */
+  GHOST_TSuccess GHOST_putClipboardImage(uint *rgba, int width, int height);
+
   GHOST_TabletData &GetCocoaTabletData()
   {
     return m_tablet;

intern/ghost/intern/GHOST_WindowCocoa.mm

@@ -616,6 +616,85 @@ GHOST_TSuccess GHOST_WindowCocoa::setClientHeight(uint32_t height)
   return GHOST_kSuccess;
 }
 
+//returns success if we have an image in the clipboard
+  GHOST_TSuccess GHOST_hasClipboardImage(void) {
+
+    return GHOST_kSuccess;
+    // NSPasteboard* pasteboard = [NSPasteboard generalPasteboard];
+    // if ([[pasteboard types] containsObject:NSTIFFPboardType])  {
+    //   return GHOST_kSuccess;
+    // } else {
+    //   return GHOST_kFailure;
+    // }
+  }
+
+
+//returns the image data from the clipboard if available
+  uint *GHOST_getClipboardImage(int *r_width, int *r_height) {
+
+// Get the general pasteboard
+NSPasteboard* pasteboard = [NSPasteboard generalPasteboard];
+
+// Check if pasteboard contains an image
+if ([[pasteboard types] containsObject:NSTIFFPboardType]) {
+
+  // Get the image
+  NSImage* image = [[NSImage alloc] initWithPasteboard:pasteboard];
+  
+  // Get image size
+  NSSize size = [image size];
+  *r_width = size.width;
+  *r_height = size.height;
+
+  // Create bitmap context
+  CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
+  CGContextRef context = CGBitmapContextCreate(NULL, *r_width, *r_height, 8, *r_width * 4, colorSpace, kCGImageAlphaPremultipliedLast | kCGBitmapByteOrder32Big);
+
+  // Draw image to context
+  [image drawInRect:CGRectMake(0, 0, *r_width, *r_height) fromRect:NSZeroRect operation:NSCompositingOperationCopy fraction:1.0];
+
+  // Get pixel data
+  uint* pixels = (uint*)CGBitmapContextGetData(context);
+
+  // Clean up
+  CGContextRelease(context);
+  CGColorSpaceRelease(colorSpace);
+  [image release];
+    return pixels; 
+    } else { 
+      return nil;
+      }
+  }
+
+
+//takes an image and puts it in the system clipboard
+  GHOST_TSuccess GHOST_putClipboardImage(uint *rgba, int width, int height) {
+    CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
+  CGContextRef context = CGBitmapContextCreate(rgba, width, height, 8, width * 4, colorSpace, 
+                                              kCGImageAlphaPremultipliedLast | kCGBitmapByteOrder32Big);
+  CGImageRef image = CGBitmapContextCreateImage(context);
+  CGContextRelease(context);
+  CGColorSpaceRelease(colorSpace);
+
+  NSPasteboard *pasteboard = [NSPasteboard generalPasteboard];
+  [pasteboard clearContents];
+  NSImage *nsImage = [[NSImage alloc] initWithCGImage:image size:NSZeroSize];
+  NSArray *copiedObjects = [NSArray arrayWithObject:nsImage];
+  BOOL copied = [pasteboard writeObjects:copiedObjects];
+
+  [nsImage release];
+  CGImageRelease(image);
+
+if (copied) {
+        return GHOST_kSuccess;
+ } else {
+  return GHOST_kFailure;
+ }
+
+  }
+
+
+
 GHOST_TSuccess GHOST_WindowCocoa::setClientSize(uint32_t width, uint32_t height)
 {
   GHOST_ASSERT(getValid(), "GHOST_WindowCocoa::setClientSize(): window invalid");