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annotate src/X_main.c @ 13:ed55009d96d3

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refactory for redrawing
author Thinker K.F. Li <thinker@branda.to>
date Thu, 31 Jul 2008 08:10:00 +0800
parents 79e9edf4c00a
children c2ce186a5c37
rev   line source
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164162781a7a Test cairo with Xlib surface
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1 #include <stdio.h>
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2 #include <unistd.h>
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3 #include <X11/Xlib.h>
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4 #include <X11/Xutil.h>
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5 #include <cairo.h>
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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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12 void draw_path(cairo_t *cr, int w, int h) {
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13 redraw_man_t rdman;
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14 shape_t *path;
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15 coord_t *coord;
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16
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17 redraw_man_init(&rdman);
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18 coord = rdman.root_coord;
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19
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20 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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21 coord->aggr_matrix[0] = 0.8;
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22 coord->aggr_matrix[1] = 0;
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23 coord->aggr_matrix[2] = 20;
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24 coord->aggr_matrix[4] = 0.8;
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25 coord->aggr_matrix[5] = 20;
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26 rdman_add_shape(&rdman, (shape_t *)path, coord);
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27 sh_path_transform(path);
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28 sh_path_draw(path, cr);
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29 sh_path_free(path);
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30 }
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31
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32 void drawing(cairo_surface_t *surface, int w, int h) {
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33 cairo_t *cr;
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34
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35 cr = cairo_create(surface);
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36 cairo_set_source_rgb(cr, 0, 0, 0);
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37 cairo_paint(cr);
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38 cairo_set_source_rgb(cr, 0.9, 0.1, 0.1);
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39 draw_path(cr, w, h);
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40 cairo_set_source_rgb(cr, 0.5, 0.9, 0.8);
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41 cairo_move_to(cr, 10, h / 2);
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42 cairo_set_font_size(cr, 36.0);
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43 cairo_text_path(cr, "hello \xe6\xbc\xa2\xe5\xad\x97");
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44 cairo_set_line_width(cr, 2);
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45 cairo_stroke(cr);
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46 }
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47
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48 int
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49 main(int argc, char * const argv[]) {
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50 Display *display;
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51 Window root;
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52 Visual *visual;
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53 int screen;
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54 XSetWindowAttributes wattr;
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55 Window win;
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56 int depth;
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57 cairo_surface_t *surface;
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58 int w, h;
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59 int x, y;
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60 int r;
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61
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62 display = XOpenDisplay(":0.0");
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63 if(display == NULL)
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64 printf("XOpenDisplay\n");
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65 screen = DefaultScreen(display);
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66 root = DefaultRootWindow(display);
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67 visual = DefaultVisual(display, screen);
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68 depth = DefaultDepth(display, screen);
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69 wattr.override_redirect = False;
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70 x = 10;
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71 y = 10;
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72 w = 200;
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73 h = 200;
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74 win = XCreateWindow(display, root,
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75 x, y,
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76 w, h,
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77 1, depth, InputOutput, visual,
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78 CWOverrideRedirect, &wattr);
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79 r = XMapWindow(display, win);
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80
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81 surface = cairo_xlib_surface_create(display, win, visual, w, h);
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82 if(surface == NULL)
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83 printf("cairo_xlib_surface_create\n");
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84
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85 drawing(surface, w, h);
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86
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87 XFlush(display);
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88 sleep(10);
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89
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90 XCloseDisplay(display);
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91 return 0;
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92 }