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#if defined(Hiro_Canvas)
@implementation CocoaCanvas : NSView
-(id) initWith:(hiro::mCanvas&)canvasReference {
if(self = [super initWithFrame:NSMakeRect(0, 0, 0, 0)]) {
canvas = &canvasReference;
NSTrackingArea* area = [[NSTrackingArea alloc] initWithRect:[self frame]
options:NSTrackingMouseMoved | NSTrackingMouseEnteredAndExited | NSTrackingActiveInKeyWindow | NSTrackingInVisibleRect
owner:self userInfo:nil
];
[self addTrackingArea:area];
}
return self;
}
-(void) resetCursorRects {
if(auto mouseCursor = NSMakeCursor(canvas->mouseCursor())) {
[self addCursorRect:self.bounds cursor:mouseCursor];
}
}
-(NSDragOperation) draggingEntered:(id<NSDraggingInfo>)sender {
return DropPathsOperation(sender);
}
-(BOOL) performDragOperation:(id<NSDraggingInfo>)sender {
auto paths = DropPaths(sender);
if(!paths) return NO;
canvas->doDrop(paths);
return YES;
}
-(void) mouseButton:(NSEvent*)event down:(BOOL)isDown {
if(isDown) {
switch([event buttonNumber]) {
case 0: return canvas->doMousePress(hiro::Mouse::Button::Left);
case 1: return canvas->doMousePress(hiro::Mouse::Button::Right);
case 2: return canvas->doMousePress(hiro::Mouse::Button::Middle);
}
} else {
switch([event buttonNumber]) {
case 0: return canvas->doMouseRelease(hiro::Mouse::Button::Left);
case 1: return canvas->doMouseRelease(hiro::Mouse::Button::Right);
case 2: return canvas->doMouseRelease(hiro::Mouse::Button::Middle);
}
}
}
-(void) mouseEntered:(NSEvent*)event {
canvas->doMouseEnter();
}
-(void) mouseExited:(NSEvent*)event {
canvas->doMouseLeave();
}
-(void) mouseMove:(NSEvent*)event {
if([event window] == nil) return;
NSPoint location = [self convertPoint:[event locationInWindow] fromView:nil];
canvas->doMouseMove({(s32)location.x, (s32)([self frame].size.height - 1 - location.y)});
}
-(void) mouseDown:(NSEvent*)event {
[self mouseButton:event down:YES];
}
-(void) mouseUp:(NSEvent*)event {
[self mouseButton:event down:NO];
}
-(void) mouseDragged:(NSEvent*)event {
[self mouseMove:event];
}
-(void) rightMouseDown:(NSEvent*)event {
[self mouseButton:event down:YES];
}
-(void) rightMouseUp:(NSEvent*)event {
[self mouseButton:event down:NO];
}
-(void) rightMouseDragged:(NSEvent*)event {
[self mouseMove:event];
}
-(void) otherMouseDown:(NSEvent*)event {
[self mouseButton:event down:YES];
}
-(void) otherMouseUp:(NSEvent*)event {
[self mouseButton:event down:NO];
}
-(void) otherMouseDragged:(NSEvent*)event {
[self mouseMove:event];
}
-(void) drawRect:(NSRect)dirtyRect {
NSRect frame = self.bounds;
s32 width = frame.size.width;
s32 height = frame.size.height;
if(auto icon = canvas->state.icon) {
NSRect alignedFrame = NSMakeRect(canvas->state.alignment.horizontal() * (width - (s32)icon.width()),
(1 - canvas->state.alignment.vertical()) * (height - (s32)icon.height()),
icon.width(), icon.height());
[NSGraphicsContext currentContext].imageInterpolation = NSImageInterpolationNone;
[NSMakeImage(icon) drawInRect:alignedFrame];
} else if(auto& gradient = canvas->state.gradient) {
auto& colors = gradient.state.colors;
image fill;
fill.allocate(width, height);
fill.gradient(colors[0].value(), colors[1].value(), colors[2].value(), colors[3].value());
[NSMakeImage(fill) drawInRect:frame];
} else {
[NSMakeColor(canvas->state.color) set];
NSRectFill(dirtyRect);
}
}
@end
namespace hiro {
auto pCanvas::construct() -> void {
cocoaView = cocoaCanvas = [[CocoaCanvas alloc] initWith:self()];
pWidget::construct();
}
auto pCanvas::destruct() -> void {
[cocoaView removeFromSuperview];
}
auto pCanvas::minimumSize() const -> Size {
if(auto& icon = state().icon) return {(s32)icon.width(), (s32)icon.height()};
return {0, 0};
}
auto pCanvas::setAlignment(Alignment) -> void {
update();
}
auto pCanvas::setColor(Color color) -> void {
update();
}
auto pCanvas::setDroppable(bool droppable) -> void {
if(droppable) {
[cocoaCanvas registerForDraggedTypes:[NSArray arrayWithObject:NSFilenamesPboardType]];
} else {
[cocoaCanvas unregisterDraggedTypes];
}
}
auto pCanvas::setFocusable(bool focusable) -> void {
//TODO
}
auto pCanvas::setGeometry(Geometry geometry) -> void {
pWidget::setGeometry(geometry);
update();
}
auto pCanvas::setGradient(Gradient gradient) -> void {
update();
}
auto pCanvas::setIcon(const image& icon) -> void {
update();
}
auto pCanvas::update() -> void {
[cocoaView setNeedsDisplay:YES];
}
}
#endif
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