kc3-lang/kc3/libc3/window/cairo/quartz/window_cairo_quartz_view.m

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• Hash : e224850a
  Author : Thomas de Grivel
  Date : 2023-11-19T01:20:04
  

  grab mouse motion on macos

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• libc3/window/cairo/quartz/window_cairo_quartz_view.m

• /* c3
   * Copyright 2022,2023 kmx.io <contact@kmx.io>
   *
   * Permission is hereby granted to use this software granted the above
   * copyright notice and this permission paragraph are included in all
   * copies and substantial portions of this software.
   *
   * THIS SOFTWARE IS PROVIDED "AS-IS" WITHOUT ANY GUARANTEE OF
   * PURPOSE AND PERFORMANCE. IN NO EVENT WHATSOEVER SHALL THE
   * AUTHOR BE CONSIDERED LIABLE FOR THE USE AND PERFORMANCE OF
   * THIS SOFTWARE.
   */
  #import <Foundation/Foundation.h>
  #import <cairo/cairo-quartz.h>
  #import <xkbcommon/xkbcommon.h>
  #import "quartz_to_xkbcommon.h"
  #import "window_cairo_quartz_view.h"
  
  @implementation WindowCairoQuartzView
  
  - (instancetype) initWithWindowCairo:(s_window_cairo *) window_cairo {
    NSRect frame = NSMakeRect(window_cairo->x, window_cairo->y, window_cairo->w, window_cairo->h);
    self = [super initWithFrame:frame];
    if (self) {
      self.window_cairo = window_cairo;
    }
    return self;
  }
  
  - (BOOL)acceptsFirstResponder {
      return YES;
  }
  
  - (void) drawRect:(NSRect)dirtyRect {
      [super drawRect:dirtyRect];
      struct CGContext *cg_context = [[NSGraphicsContext currentContext]
                                       CGContext];
      CGContextTranslateCTM(cg_context, 0.0, self.bounds.size.height);
      CGContextScaleCTM(cg_context, 1.0, -1.0);
      cairo_surface_t *surface =
        cairo_quartz_surface_create_for_cg_context(cg_context,
                                                   self.bounds.size.width,
                                                   self.bounds.size.height);
      cairo_t *cr = cairo_create(surface);
      if (! self.window_cairo->render(self.window_cairo, cr)) {
        [self.window close];
        [self.window release];
        [[NSApplication sharedApplication] stop:nil];
      }
      cairo_surface_flush(surface);
      cairo_destroy(cr);
      cairo_surface_destroy(surface);
  }
  
  - (void)keyDown:(NSEvent *)event {
    NSString *characters = [event characters];
    unichar character = [characters characterAtIndex:0];
    u32 keysym = quartz_to_xkbcommon(character);
    if (! self.window_cairo->key(self.window_cairo, keysym)) {
      [self.window close];
      [self.window release];
      [[NSApplication sharedApplication] stop:nil];
    }
  }
  
  - (void)mouseDown:(NSEvent *)event {
    NSPoint p = [event locationInWindow];
    if (! self.window_cairo->button(self.window_cairo, 0, p.x, p.y)) {
      [self.window close];
      [self.window release];
      [[NSApplication sharedApplication] stop:nil];
    }
  }
  
  - (void)mouseMoved:(NSEvent *)event {
    NSPoint p = [event locationInWindow];
    p.y = self.window_cairo->h - p.y;
    if (! self.window_cairo->motion(self.window_cairo, p.x, p.y)) {
      [self.window close];
      [self.window release];
      [[NSApplication sharedApplication] stop:nil];
    }
  }
  
  - (void)rightMouseDown:(NSEvent *)event {
    NSPoint p = [event locationInWindow];
    if (! self.window_cairo->button(self.window_cairo, 2, p.x, p.y)) {
      [self.window close];
      [self.window release];
      [[NSApplication sharedApplication] stop:nil];
    }
  }
  
  @end
  
  

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