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annotate src/X_main.c @ 18:0f3baa488a62

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Support solid color paint for fill.
author Thinker K.F. Li <thinker@branda.to>
date Sat, 02 Aug 2008 14:45:42 +0800
parents e17e12b112c4
children cf6d65398619
rev   line source
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164162781a7a Test cairo with Xlib surface
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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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7
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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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11 #include "paint.h"
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12
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13 Display *display;
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14
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15 void draw_path(cairo_t *cr, int w, int h) {
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16 redraw_man_t rdman;
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17 shape_t *path;
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18 coord_t *coord;
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19 paint_t *fill;
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20 int i;
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21
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22 redraw_man_init(&rdman, cr);
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23 coord = rdman.root_coord;
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24
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25 fill = paint_color_new(&rdman, 1, 1, 0);
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128af06c876c Fix the bug that data of a path end with white spaces would make system down
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26 path = 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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27 rdman_paint_fill(&rdman, fill, path);
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28 coord->matrix[0] = 0.8;
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29 coord->matrix[1] = 0;
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30 coord->matrix[2] = 20;
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31 coord->matrix[4] = 0.8;
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32 coord->matrix[5] = 20;
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33 rdman_coord_changed(&rdman, coord);
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34 rdman_add_shape(&rdman, (shape_t *)path, coord);
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c2ce186a5c37 X_main uses rdman_redraw_all()
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35
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36 rdman_redraw_all(&rdman);
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37
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38 XFlush(display);
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39
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40 for(i = 0; i < 50; i++) {
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41 usleep(20000);
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42 coord->matrix[2] += 1;
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43 coord->matrix[5] += 1;
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44 paint_color_set(fill, 1, 1, (i/25) & 0x1);
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45 rdman_coord_changed(&rdman, coord);
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46 rdman_redraw_changed(&rdman);
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47 XFlush(display);
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48 }
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49
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50 for(i = 0; i < 5; i++) {
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51 usleep(500000);
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52 paint_color_set(fill, 1, i % 2, 0);
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53 rdman_paint_changed(&rdman, fill);
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54 rdman_redraw_changed(&rdman);
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55 XFlush(display);
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56 }
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57
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58 fill->free(fill);
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59 redraw_man_destroy(&rdman);
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ed55009d96d3 refactory for redrawing
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60 sh_path_free(path);
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61 }
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62
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164162781a7a Test cairo with Xlib surface
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63 void drawing(cairo_surface_t *surface, int w, int h) {
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64 cairo_t *cr;
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65
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66 cr = cairo_create(surface);
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569f3168ba53 Clear background & tranform relative pos into absolute ones
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67 cairo_set_source_rgb(cr, 0, 0, 0);
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68 cairo_paint(cr);
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69 cairo_set_source_rgb(cr, 0.9, 0.1, 0.1);
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70 draw_path(cr, w, h);
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71 cairo_set_source_rgb(cr, 0.5, 0.9, 0.8);
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72 cairo_move_to(cr, 10, h / 2);
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73 cairo_set_font_size(cr, 36.0);
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74 cairo_text_path(cr, "hello \xe6\xbc\xa2\xe5\xad\x97");
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75 cairo_set_line_width(cr, 2);
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76 cairo_stroke(cr);
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77 }
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78
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79 int
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80 main(int argc, char * const argv[]) {
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81 Window root;
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82 Visual *visual;
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83 int screen;
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84 XSetWindowAttributes wattr;
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85 Window win;
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86 int depth;
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87 cairo_surface_t *surface;
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88 int w, h;
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89 int x, y;
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90 int r;
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91
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92 display = XOpenDisplay(":0.0");
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93 if(display == NULL)
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94 printf("XOpenDisplay\n");
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95 screen = DefaultScreen(display);
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96 root = DefaultRootWindow(display);
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97 visual = DefaultVisual(display, screen);
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98 depth = DefaultDepth(display, screen);
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99 wattr.override_redirect = False;
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100 x = 10;
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101 y = 10;
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102 w = 200;
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103 h = 200;
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104 win = XCreateWindow(display, root,
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105 x, y,
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106 w, h,
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107 1, depth, InputOutput, visual,
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108 CWOverrideRedirect, &wattr);
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109 r = XMapWindow(display, win);
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110
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111 surface = cairo_xlib_surface_create(display, win, visual, w, h);
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112 if(surface == NULL)
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113 printf("cairo_xlib_surface_create\n");
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114
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115 drawing(surface, w, h);
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116
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117 XFlush(display);
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118 sleep(10);
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119
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120 XCloseDisplay(display);
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121 return 0;
3
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122 }