Mercurial > MadButterfly

annotate src/X_main.c @ 23:56f592f56ff7

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Fix bug and add linear gradient paint. - fix the bug that forget to clear n_dirty_geos in rdman_redraw_all().
author Thinker K.F. Li <thinker@branda.to>
date Sat, 02 Aug 2008 23:10:42 +0800
parents 8fcf2d878ecd
children e598bc809c0f
rev   line source
3
164162781a7a Test cairo with Xlib surface
Thinker K.F. Li <thinker@branda.to>
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diff changeset
1 #include <stdio.h>
164162781a7a Test cairo with Xlib surface
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2 #include <unistd.h>
164162781a7a Test cairo with Xlib surface
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3 #include <X11/Xlib.h>
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772511b8b9be Cairo specify RGB values in range 0.0 ~ 1.0.
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4 #include <X11/Xutil.h>
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164162781a7a Test cairo with Xlib surface
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5 #include <cairo.h>
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7cfecdce94cc Remove warning messages
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6 #include <cairo-xlib.h>
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164162781a7a Test cairo with Xlib surface
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7
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9c331ec9e210 SVG path is partially supported
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8 #include <string.h>
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9 #include "shapes.h"
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10 #include "redraw_man.h"
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0f3baa488a62 Support solid color paint for fill.
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11 #include "paint.h"
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9c331ec9e210 SVG path is partially supported
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12
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e17e12b112c4 A simple animation using rdman_redraw_changed().
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13 Display *display;
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14
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9c331ec9e210 SVG path is partially supported
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15 void draw_path(cairo_t *cr, int w, int h) {
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79e9edf4c00a Add redraw manager
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16 redraw_man_t rdman;
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56f592f56ff7 Fix bug and add linear gradient paint.
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17 shape_t *path1, *path2, *path3;
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18 coord_t *coord1, *coord2;
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56f592f56ff7 Fix bug and add linear gradient paint.
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19 paint_t *fill1, *fill2, *fill3;
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8fcf2d878ecd shapes with stroke
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20 paint_t *stroke;
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56f592f56ff7 Fix bug and add linear gradient paint.
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21 grad_stop_t fill3_stops[3];
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e17e12b112c4 A simple animation using rdman_redraw_changed().
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22 int i;
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23
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c2ce186a5c37 X_main uses rdman_redraw_all()
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24 redraw_man_init(&rdman, cr);
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25 coord1 = rdman_coord_new(&rdman, rdman.root_coord);
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26 coord2 = rdman_coord_new(&rdman, rdman.root_coord);
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27
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28 fill1 = paint_color_new(&rdman, 1, 1, 0, 0.5);
83d24300a992 opacity (alpha) channel
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29 fill2 = paint_color_new(&rdman, 0, 1, 1, 0.5);
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8fcf2d878ecd shapes with stroke
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30 stroke = paint_color_new(&rdman, 0.4, 0.4, 0.4, 1);
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31 path1 = sh_path_new("M 22,89.36218 C -34,-0.63782 39,-9.637817 82,12.36218 C 125,34.36218 142,136.36218 142,136.36218 C 100.66667,125.36218 74.26756,123.42795 22,89.36218 z ");
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32 rdman_paint_fill(&rdman, fill1, path1);
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8fcf2d878ecd shapes with stroke
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33 rdman_paint_stroke(&rdman, stroke, path1);
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34 coord1->matrix[0] = 0.8;
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35 coord1->matrix[1] = 0;
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36 coord1->matrix[2] = 20;
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37 coord1->matrix[4] = 0.8;
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38 coord1->matrix[5] = 20;
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39 path2 = sh_path_new("M 22,89.36218 C -34,-0.63782 39,-9.637817 82,12.36218 C 125,34.36218 142,136.36218 142,136.36218 C 100.66667,125.36218 74.26756,123.42795 22,89.36218 z ");
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40 rdman_paint_fill(&rdman, fill2, path2);
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41 rdman_paint_stroke(&rdman, stroke, path2);
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42 coord2->matrix[0] = -0.8;
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43 coord2->matrix[1] = 0;
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74d3d5dc9aaa rename XXX_draw() to XXX_fill()
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44 coord2->matrix[2] = 180;
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45 coord2->matrix[4] = 0.8;
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46 coord2->matrix[5] = 20;
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47 rdman_coord_changed(&rdman, coord1);
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48 rdman_coord_changed(&rdman, coord2);
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49 rdman_add_shape(&rdman, (shape_t *)path1, coord1);
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50 rdman_add_shape(&rdman, (shape_t *)path2, coord2);
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c2ce186a5c37 X_main uses rdman_redraw_all()
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51
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56f592f56ff7 Fix bug and add linear gradient paint.
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52
56f592f56ff7 Fix bug and add linear gradient paint.
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53 fill3 = paint_linear_new(&rdman, 50, 50, 150, 150);
56f592f56ff7 Fix bug and add linear gradient paint.
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54 grad_stop_init(fill3_stops, 0, 1, 0, 0, 0.5);
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55 grad_stop_init(fill3_stops + 1, 0.5, 0, 1, 0, 0.5);
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56 grad_stop_init(fill3_stops + 2, 1, 0, 0, 1, 0.5);
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57 paint_linear_stops(fill3, 3, fill3_stops);
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58 path3 = sh_path_new("M 50,50 L 50,150 L 150,150 L 150,50 z");
56f592f56ff7 Fix bug and add linear gradient paint.
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59 rdman_paint_fill(&rdman, fill3, path3);
56f592f56ff7 Fix bug and add linear gradient paint.
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60 rdman_add_shape(&rdman, (shape_t *)path3, rdman.root_coord);
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61
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c2ce186a5c37 X_main uses rdman_redraw_all()
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62 rdman_redraw_all(&rdman);
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63
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64 XFlush(display);
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65
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66 for(i = 0; i < 50; i++) {
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67 usleep(20000);
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68 coord1->matrix[2] += 1;
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69 coord1->matrix[5] += 1;
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70 coord2->matrix[2] -= 1;
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71 coord2->matrix[5] += 1;
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72 paint_color_set(fill1, 1, 1, (i/25) & 0x1, 0.5);
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73 paint_color_set(fill2, (i/25) & 0x1, 1, 1, 0.5);
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74 rdman_paint_changed(&rdman, fill1);
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75 rdman_paint_changed(&rdman, fill2);
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76 rdman_coord_changed(&rdman, coord1);
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77 rdman_coord_changed(&rdman, coord2);
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78 rdman_redraw_changed(&rdman);
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79 XFlush(display);
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80 }
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81
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82 for(i = 0; i < 5; i++) {
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83 usleep(500000);
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84 paint_color_set(fill1, 1, i % 2, 0, 0.5);
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85 paint_color_set(fill2, 0, i % 2, 1, 0.5);
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86 rdman_paint_changed(&rdman, fill1);
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87 rdman_paint_changed(&rdman, fill2);
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88 rdman_redraw_changed(&rdman);
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89 XFlush(display);
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90 }
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91
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92 fill1->free(fill1);
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93 fill2->free(fill2);
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c2ce186a5c37 X_main uses rdman_redraw_all()
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94 redraw_man_destroy(&rdman);
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95 sh_path_free(path1);
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96 sh_path_free(path2);
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97 }
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98
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164162781a7a Test cairo with Xlib surface
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99 void drawing(cairo_surface_t *surface, int w, int h) {
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100 cairo_t *cr;
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101
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102 cr = cairo_create(surface);
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569f3168ba53 Clear background & tranform relative pos into absolute ones
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103 cairo_set_source_rgb(cr, 0, 0, 0);
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104 cairo_paint(cr);
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105 cairo_set_source_rgb(cr, 0.9, 0.1, 0.1);
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106 draw_path(cr, w, h);
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107 cairo_set_source_rgb(cr, 0.5, 0.9, 0.8);
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108 cairo_move_to(cr, 10, h / 2);
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109 cairo_set_font_size(cr, 36.0);
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110 cairo_text_path(cr, "hello \xe6\xbc\xa2\xe5\xad\x97");
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111 cairo_set_line_width(cr, 2);
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112 cairo_stroke(cr);
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113 }
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114
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115 int
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116 main(int argc, char * const argv[]) {
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117 Window root;
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118 Visual *visual;
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119 int screen;
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120 XSetWindowAttributes wattr;
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121 Window win;
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122 int depth;
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123 cairo_surface_t *surface;
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124 int w, h;
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125 int x, y;
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126 int r;
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127
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128 display = XOpenDisplay(":0.0");
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129 if(display == NULL)
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130 printf("XOpenDisplay\n");
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131 screen = DefaultScreen(display);
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132 root = DefaultRootWindow(display);
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133 visual = DefaultVisual(display, screen);
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134 depth = DefaultDepth(display, screen);
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135 wattr.override_redirect = False;
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Thinker K.F. Li <thinker@branda.to>
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136 x = 10;
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137 y = 10;
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138 w = 200;
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139 h = 200;
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140 win = XCreateWindow(display, root,
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141 x, y,
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142 w, h,
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143 1, depth, InputOutput, visual,
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Thinker K.F. Li <thinker@branda.to>
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144 CWOverrideRedirect, &wattr);
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145 r = XMapWindow(display, win);
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146
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147 surface = cairo_xlib_surface_create(display, win, visual, w, h);
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148 if(surface == NULL)
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149 printf("cairo_xlib_surface_create\n");
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150
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151 drawing(surface, w, h);
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152
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153 XFlush(display);
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154 sleep(10);
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155
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156 XCloseDisplay(display);
10
7cfecdce94cc Remove warning messages
Thinker K.F. Li <thinker@branda.to>
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157 return 0;
3
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158 }