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Diffstat (limited to 'macosx/tkMacOSXDraw.c')
-rw-r--r--macosx/tkMacOSXDraw.c86
1 files changed, 49 insertions, 37 deletions
diff --git a/macosx/tkMacOSXDraw.c b/macosx/tkMacOSXDraw.c
index 3f51d00..7ec7b90 100644
--- a/macosx/tkMacOSXDraw.c
+++ b/macosx/tkMacOSXDraw.c
@@ -141,7 +141,7 @@ BitmapRepFromDrawableRect(
if ( mac_drawable->flags & TK_IS_PIXMAP ) {
/*
This means that the MacDrawable is functioning as a Tk Pixmap, so its view
- field is NULL. It's context field should point to a CGImage.
+ field is NULL.
*/
cg_context = GetCGContextForDrawable(drawable);
CGRect image_rect = CGRectMake(x, y, width, height);
@@ -199,10 +199,10 @@ XCopyArea(
Display *display, /* Display. */
Drawable src, /* Source drawable. */
Drawable dst, /* Destination drawable. */
- GC gc, /* GC to use. */
+ GC gc, /* GC to use. */
int src_x, /* X & Y, width & height */
int src_y, /* define the source rectangle */
- unsigned int width, /* that will be copied. */
+ unsigned int width, /* that will be copied. */
unsigned int height,
int dest_x, /* Dest X & Y on dest rect. */
int dest_y)
@@ -282,10 +282,10 @@ XCopyPlane(
Display *display, /* Display. */
Drawable src, /* Source drawable. */
Drawable dst, /* Destination drawable. */
- GC gc, /* GC to use. */
+ GC gc, /* GC to use. */
int src_x, /* X & Y, width & height */
int src_y, /* define the source rectangle */
- unsigned int width, /* that will be copied. */
+ unsigned int width, /* that will be copied. */
unsigned int height,
int dest_x, /* Dest X & Y on dest rect. */
int dest_y,
@@ -293,6 +293,7 @@ XCopyPlane(
{
TkMacOSXDrawingContext dc;
MacDrawable *srcDraw = (MacDrawable *) src;
+ MacDrawable *dstDraw = (MacDrawable *) dst;
display->request++;
if (!width || !height) {
@@ -306,33 +307,47 @@ XCopyPlane(
if (!TkMacOSXSetupDrawingContext(dst, gc, 1, &dc)) {
return;
}
- if (dc.context) {
+ CGContextRef context = dc.context;
+ if (context) {
CGImageRef img = TkMacOSXCreateCGImageWithDrawable(src);
-
if (img) {
TkpClipMask *clipPtr = (TkpClipMask *) gc->clip_mask;
unsigned long imageBackground = gc->background;
-
- if (clipPtr && clipPtr->type == TKP_CLIP_PIXMAP &&
- clipPtr->value.pixmap == src) {
- imageBackground = TRANSPARENT_PIXEL << 24;
+ if (clipPtr && clipPtr->type == TKP_CLIP_PIXMAP){
+ CGImageRef mask = TkMacOSXCreateCGImageWithDrawable(clipPtr->value.pixmap);
+ CGRect rect = CGRectMake(dest_x, dest_y, width, height);
+ rect = CGRectOffset(rect, dstDraw->xOff, dstDraw->yOff);
+ CGContextSaveGState(context);
+ /* Move the origin of the destination to top left. */
+ CGContextTranslateCTM(context, 0, rect.origin.y + CGRectGetMaxY(rect));
+ CGContextScaleCTM(context, 1, -1);
+ /* Fill with the background color, clipping to the mask. */
+ CGContextClipToMask(context, rect, mask);
+ TkMacOSXSetColorInContext(gc, gc->background, dc.context);
+ CGContextFillRect(dc.context, rect);
+ /* Fill with the foreground color, clipping to the intersection of img and mask. */
+ CGContextClipToMask(context, rect, img);
+ TkMacOSXSetColorInContext(gc, gc->foreground, context);
+ CGContextFillRect(context, rect);
+ CGContextRestoreGState(context);
+ CGImageRelease(mask);
+ CGImageRelease(img);
+ } else {
+ DrawCGImage(dst, gc, dc.context, img, gc->foreground, imageBackground,
+ CGRectMake(0, 0, srcDraw->size.width, srcDraw->size.height),
+ CGRectMake(src_x, src_y, width, height),
+ CGRectMake(dest_x, dest_y, width, height));
+ CGImageRelease(img);
}
- DrawCGImage(dst, gc, dc.context, img, gc->foreground,
- imageBackground, CGRectMake(0, 0,
- srcDraw->size.width, srcDraw->size.height),
- CGRectMake(src_x, src_y, width, height),
- CGRectMake(dest_x, dest_y, width, height));
- CFRelease(img);
- } else {
+ } else { /* no image */
TkMacOSXDbgMsg("Invalid source drawable");
}
} else {
- TkMacOSXDbgMsg("Invalid destination drawable");
+ TkMacOSXDbgMsg("Invalid destination drawable - could not get a bitmap context.");
}
TkMacOSXRestoreDrawingContext(&dc);
- } else {
- XCopyArea(display, src, dst, gc, src_x, src_y, width, height, dest_x,
- dest_y);
+ } else { /* source drawable is a window, not a Pixmap */
+ XCopyArea(display, src, dst, gc, src_x, src_y, width, height, dest_x, dest_y);
}
}
@@ -356,16 +371,16 @@ XCopyPlane(
int
TkPutImage(
unsigned long *colors, /* Unused on Macintosh. */
- int ncolors, /* Unused on Macintosh. */
+ int ncolors, /* Unused on Macintosh. */
Display* display, /* Display. */
Drawable d, /* Drawable to place image on. */
- GC gc, /* GC to use. */
+ GC gc, /* GC to use. */
XImage* image, /* Image to place. */
int src_x, /* Source X & Y. */
int src_y,
int dest_x, /* Destination X & Y. */
int dest_y,
- unsigned int width, /* Same width & height for both */
+ unsigned int width, /* Same width & height for both */
unsigned int height) /* distination and source. */
{
TkMacOSXDrawingContext dc;
@@ -431,11 +446,12 @@ CreateCGImageWithXImage(
* BW image
*/
+ /* Reverses the sense of the bits */
static const CGFloat decodeWB[2] = {1, 0};
+ decode = decodeWB;
bitsPerComponent = 1;
bitsPerPixel = 1;
- decode = decodeWB;
if (image->bitmap_bit_order != MSBFirst) {
char *srcPtr = image->data + image->xoffset;
char *endPtr = srcPtr + len;
@@ -445,22 +461,20 @@ CreateCGImageWithXImage(
*destPtr++ = xBitReverseTable[(unsigned char)(*(srcPtr++))];
}
} else {
- data = memcpy(ckalloc(len), image->data + image->xoffset,
- len);
+ data = memcpy(ckalloc(len), image->data + image->xoffset, len);
}
if (data) {
provider = CGDataProviderCreateWithData(data, data, len, releaseData);
}
if (provider) {
img = CGImageMaskCreate(image->width, image->height, bitsPerComponent,
- bitsPerPixel, image->bytes_per_line,
- provider, decode, 0);
+ bitsPerPixel, image->bytes_per_line, provider, decode, 0);
}
} else if (image->format == ZPixmap && image->bits_per_pixel == 32) {
/*
* Color image
*/
-
+
CGColorSpaceRef colorspace = CGColorSpaceCreateWithName(kCGColorSpaceSRGB);
bitsPerComponent = 8;
@@ -476,6 +490,7 @@ CreateCGImageWithXImage(
img = CGImageCreate(image->width, image->height, bitsPerComponent,
bitsPerPixel, image->bytes_per_line, colorspace, bitmapInfo,
provider, decode, 0, kCGRenderingIntentDefault);
+ CFRelease(provider);
}
if (colorspace) {
CFRelease(colorspace);
@@ -483,10 +498,6 @@ CreateCGImageWithXImage(
} else {
TkMacOSXDbgMsg("Unsupported image type");
}
- if (provider) {
- CFRelease(provider);
- }
-
return img;
}
@@ -660,8 +671,7 @@ GetCGContextForDrawable(
kCGBitmapByteOrderDefault;
#endif
char *data;
- CGRect bounds = CGRectMake(0, 0, macDraw->size.width,
- macDraw->size.height);
+ CGRect bounds = CGRectMake(0, 0, macDraw->size.width, macDraw->size.height);
if (macDraw->flags & TK_IS_BW_PIXMAP) {
bitsPerPixel = 8;
@@ -738,6 +748,7 @@ DrawCGImage(
if (CGImageIsMask(image)) {
/*CGContextSaveGState(context);*/
if (macDraw->flags & TK_IS_BW_PIXMAP) {
+ /* Set fill color to black, background comes from the context, or is transparent. */
if (imageBackground != TRANSPARENT_PIXEL << 24) {
CGContextClearRect(context, dstBounds);
}
@@ -750,6 +761,7 @@ DrawCGImage(
TkMacOSXSetColorInContext(gc, imageForeground, context);
}
}
+
#ifdef TK_MAC_DEBUG_IMAGE_DRAWING
CGContextSaveGState(context);
CGContextSetLineWidth(context, 1.0);
generated by cgit v0.12 at 2024-07-09 04:23:19 (GMT)