ui/cocoa/graphics.m

Sun, 16 Jun 2024 11:36:27 +0200

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Sun, 16 Jun 2024 11:36:27 +0200
changeset 42
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1 /*
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2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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3 *
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4 * Copyright 2014 Olaf Wintermann. All rights reserved.
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5 *
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6 * Redistribution and use in source and binary forms, with or without
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7 * modification, are permitted provided that the following conditions are met:
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8 *
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9 * 1. Redistributions of source code must retain the above copyright
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10 * notice, this list of conditions and the following disclaimer.
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11 *
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12 * 2. Redistributions in binary form must reproduce the above copyright
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13 * notice, this list of conditions and the following disclaimer in the
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14 * documentation and/or other materials provided with the distribution.
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15 *
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16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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26 * POSSIBILITY OF SUCH DAMAGE.
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27 */
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28
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29 #import <stdio.h>
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30 #import <stdlib.h>
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31 #import <string.h>
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32
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33 #import "graphics.h"
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34 #import "container.h"
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35 #import "../common/context.h"
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36
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37
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38
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39 @implementation UiCanvas
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40
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41 - (UiObject*) object {
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42 return object;
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43 }
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44
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45 - (void) setObject:(void*)obj {
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46 object = obj;
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47 }
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48
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49 - (void*) userdata {
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50 return userdata;
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51 }
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52
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53 - (void) setUserdata:(void*)d {
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54 userdata = d;
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55 }
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56
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57 - (ui_drawfunc) callback {
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58 return callback;
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59 }
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60 - (void) setCallback: (ui_drawfunc)f {
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61 callback = f;
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62 }
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63
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64 - (void) drawRect:(NSRect)rect {
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65 UiGraphics g;
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66 NSRect bounds = [self bounds];
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67 g.width = bounds.size.width;
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68 g.height = bounds.size.height;
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69
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70 UiEvent ev;
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71 ev.obj = object;
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72 ev.window = object->window;
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73 ev.document = object->ctx->document;
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74
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75 callback(&ev, &g, userdata);
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76 }
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77
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78 @end
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79
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80
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81 UIWIDGET ui_drawingarea(UiObject *obj, ui_drawfunc f, void *userdata) {
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82 UiContainer *ct = uic_get_current_container(obj);
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83
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84 NSRect frame = ct->getframe(ct);
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85
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86 UiCanvas *canvas = [[UiCanvas alloc]initWithFrame:frame];
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87 [canvas setObject: obj];
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88 [canvas setCallback: f];
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89 [canvas setUserdata: userdata];
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90 ct->add(ct, canvas);
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91
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92 return canvas;
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93 }
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94
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95
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96 // drawing functions
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97 void ui_graphics_color(UiGraphics *gr, int red, int green, int blue) {
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98 float r = ((float)red) / 255.f;
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99 float g = ((float)green) / 255.f;
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100 float b = ((float)blue) / 255.f;
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101
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102 NSColor *color = [NSColor colorWithCalibratedRed:r green:g blue:b alpha:1];
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103 [color set];
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104 }
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105
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106 void ui_draw_rect(UiGraphics *g, int x, int y, int w, int h, int fill) {
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107 // translate y
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108 y = g->height - y - h;
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109
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110 NSRect bounds;
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111 bounds.origin.x = x;
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112 bounds.origin.y = y;
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113 bounds.size.width = w;
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114 bounds.size.height = h;
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115
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116 if(fill) {
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117 NSRectFill(bounds);
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118 } else {
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119 NSFrameRect(bounds);
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120 }
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121 }
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122
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123
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124

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