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ref: flip coordinate system

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relikd
2025-12-08 21:43:24 +01:00
parent 3a14c90f37
commit 881b9db02c
1 changed files with 6 additions and 12 deletions
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18
baRSS/Helper/DrawImage.m
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@@ -24,10 +24,10 @@ static inline const CGFloat ShorterSide(NSSize s) {
}
/// Flip coordinate system
static void FlipCoordinateSystem(CGContextRef c, CGFloat height) {
CGContextTranslateCTM(c, 0, height);
CGContextScaleCTM(c, 1, -1);
}
//static void FlipCoordinateSystem(CGContextRef c, CGFloat height) {
// CGContextTranslateCTM(c, 0, height);
// CGContextScaleCTM(c, 1, -1);
//}
/// Scale and translate context to the center with respect to the new scale. If @c width @c != @c length align top left.
static void SetContentScale(CGContextRef c, CGSize size, CGFloat scale) {
@@ -60,7 +60,7 @@ static void DrawGradient(CGContextRef c, CGFloat size, NSColor *color) {
CFArrayRef colors = CFArrayCreate(NULL, cgColors, 3, NULL);
CGGradientRef gradient = CGGradientCreateWithColors(NULL, colors, NULL);
CGContextDrawLinearGradient(c, gradient, CGPointMake(0, size), CGPointMake(size, 0), kCGGradientDrawsBeforeStartLocation | kCGGradientDrawsAfterEndLocation);
CGContextDrawLinearGradient(c, gradient, CGPointMake(0, 0), CGPointMake(size, size), kCGGradientDrawsBeforeStartLocation | kCGGradientDrawsAfterEndLocation);
CGGradientRelease(gradient);
CFRelease(colors);
}
@@ -74,7 +74,6 @@ static void DrawGradient(CGContextRef c, CGFloat size, NSColor *color) {
@param connection If @c NO, draw only one radio wave and a pause icon in the upper right
*/
static inline void AddRSSIconPath(CGContextRef c, CGFloat size, BOOL connection) {
FlipCoordinateSystem(c, size);
svgCircle(c, size/100, 13, 87, 13, NO);
svgPath(c, size/100, "M0,55v-20c43,0,65,22,65,65h-20c0-30-15-45-45-45Z");
if (connection) {
@@ -162,7 +161,6 @@ static void Appearance_MainMenu(CGRect r) {
const CGFloat size = ShorterSide(r.size);
CGContextRef c = NSGraphicsContext.currentContext.CGContext;
CGContextSetFillColorWithColor(c, [NSColor controlTextColor].CGColor);
FlipCoordinateSystem(c, r.size.height);
// menu
svgRect(c, size/16, CGRectMake(0, 0, 16, 3));
svgRect(c, size/16, CGRectMake(5, 4, 9, 12));
@@ -178,7 +176,6 @@ static void Appearance_MainMenu(CGRect r) {
static void Appearance_Group(CGRect r) {
const CGFloat size = ShorterSide(r.size);
CGContextRef c = NSGraphicsContext.currentContext.CGContext;
FlipCoordinateSystem(c, r.size.height);
SetContentScale(c, r.size, 0.92);
// folder path
svgPath(c, size/100, "M15,87c-12,0-15-3-15-15V21c0-10,3-13,13-13h11c10,0,8,8,18,8h43c12,0,15,3,15,15v41c0,12-3,15-15,15H15Z");
@@ -203,7 +200,6 @@ static void Appearance_Article(CGRect r) {
const CGFloat size = ShorterSide(r.size);
CGContextRef c = NSGraphicsContext.currentContext.CGContext;
CGContextSetFillColorWithColor(c, [NSColor controlTextColor].CGColor);
FlipCoordinateSystem(c, r.size.height);
// text lines
svgRect(c, size/16, CGRectMake(0, 14, 16, 1));
svgRect(c, size/16, CGRectMake(0, 10, 16, 1));
@@ -214,7 +210,6 @@ static void Appearance_Article(CGRect r) {
// RSS icon
CGContextTranslateCTM(c, size/16 * 1, size/16 * 1);
CGContextScaleCTM(c, 7.0/16, 7.0/16);
FlipCoordinateSystem(c, r.size.height);
AddRSSIconPath(c, ShorterSide(r.size), YES);
CGContextEOFillPath(c);
}
@@ -256,7 +251,6 @@ static void DrawRegexIcon(CGRect r) {
CGContextFillPath(c);
// SVG files use bottom-left corner coordinate system. Quartz uses top-left.
FlipCoordinateSystem(c, r.size.height);
SetContentScale(c, r.size, 0.8);
// "("
svgPath(c, size/1000, "m184 187c-140 205-134 432-1 622l-66 44c-159-221-151-499 0-708z");
@@ -277,7 +271,7 @@ static void DrawRegexIcon(CGRect r) {
/// Add single image to @c ImageNamed cache and set accessibility description
static void Register(CGFloat size, NSImageName name, NSString *description, BOOL (^draw)(NSRect r)) {
NSImage *img = [NSImage imageWithSize: NSMakeSize(size, size) flipped:NO drawingHandler:draw];
NSImage *img = [NSImage imageWithSize: NSMakeSize(size, size) flipped:YES drawingHandler:draw];
img.accessibilityDescription = description;
img.name = name;
}