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annotate src/X_main.c @ 11:128af06c876c

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Fix the bug that data of a path end with white spaces would make system down
author Thinker K.F. Li <thinker@branda.to>
date Sat, 26 Jul 2008 06:34:15 +0800
parents 7cfecdce94cc
children 79e9edf4c00a
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>
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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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5 #include <cairo.h>
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6 #include <cairo-xlib.h>
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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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11 void draw_path(cairo_t *cr, int w, int h) {
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12 shape_t *path;
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13 coord_t coord;
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14
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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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15 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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16 memset(coord.aggr_matrix, 0, sizeof(co_aix) * 6);
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17 coord.aggr_matrix[0] = 0.8;
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18 coord.aggr_matrix[1] = 0;
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19 coord.aggr_matrix[2] = 20;
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20 coord.aggr_matrix[4] = 0.8;
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21 coord.aggr_matrix[5] = 20;
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9c331ec9e210 SVG path is partially supported
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22 sh_path_transform(path, &coord);
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23 sh_path_draw(path, cr);
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24 }
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25
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26 void drawing(cairo_surface_t *surface, int w, int h) {
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27 cairo_t *cr;
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28
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29 cr = cairo_create(surface);
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569f3168ba53 Clear background & tranform relative pos into absolute ones
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30 cairo_set_source_rgb(cr, 0, 0, 0);
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31 cairo_paint(cr);
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32 cairo_set_source_rgb(cr, 0.9, 0.1, 0.1);
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33 draw_path(cr, w, h);
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34 cairo_set_source_rgb(cr, 0.5, 0.9, 0.8);
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35 cairo_move_to(cr, 10, h / 2);
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36 cairo_set_font_size(cr, 48.0);
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37 cairo_text_path(cr, "hello \xe4\xb8\xad\xe6\x96\x87");
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38 cairo_set_line_width(cr, 2);
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39 cairo_stroke(cr);
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40 }
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41
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42 int
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43 main(int argc, char * const argv[]) {
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44 Display *display;
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45 Window root;
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46 Visual *visual;
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47 int screen;
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48 XSetWindowAttributes wattr;
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49 Window win;
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50 int depth;
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51 cairo_surface_t *surface;
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52 int w, h;
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53 int x, y;
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54 int r;
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55
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56 display = XOpenDisplay(":0.0");
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57 if(display == NULL)
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58 printf("XOpenDisplay\n");
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59 screen = DefaultScreen(display);
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60 root = DefaultRootWindow(display);
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61 visual = DefaultVisual(display, screen);
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62 depth = DefaultDepth(display, screen);
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63 wattr.override_redirect = False;
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64 x = 10;
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65 y = 10;
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66 w = 200;
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67 h = 200;
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68 win = XCreateWindow(display, root,
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69 x, y,
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70 w, h,
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71 1, depth, InputOutput, visual,
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72 CWOverrideRedirect, &wattr);
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73 r = XMapWindow(display, win);
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74
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75 surface = cairo_xlib_surface_create(display, win, visual, w, h);
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76 if(surface == NULL)
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77 printf("cairo_xlib_surface_create\n");
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78
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79 drawing(surface, w, h);
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80
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81 XFlush(display);
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82 sleep(10);
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83
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84 XCloseDisplay(display);
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85 return 0;
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86 }