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3131
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1 /* A simple program to test the Input Method support in the SDL library (1.3+) */
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2
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3 #include <stdlib.h>
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4 #include <stdio.h>
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5 #include <string.h>
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6
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7 #include "SDL.h"
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8 #include <SDL/SDL_ttf.h>
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9
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10 #define DEFAULT_PTSIZE 30
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11 #define DEFAULT_FONT "DroidSansFallback.ttf"
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12 #define MAX_TEXT_LENGTH 256
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13
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14 static void render_text(SDL_Surface *sur,
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15 TTF_Font *font,
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16 const char *text,
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17 int x, int y,
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18 SDL_Color color)
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19 {
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20 SDL_Surface *textSur = TTF_RenderUTF8_Blended(font, text, color);
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21 SDL_Rect dest = { x, y, textSur->w, textSur->h };
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22
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23 SDL_BlitSurface(textSur, NULL, sur, &dest);
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24 SDL_FreeSurface(textSur);
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25 }
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26
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27 int main(int argc, char *argv[])
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28 {
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29 int width, height;
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30 SDL_Surface *screen;
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31 TTF_Font *font;
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32
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33 width = 500, height = 250;
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34
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35 SDL_putenv("SDL_VIDEO_WINDOW_POS=center");
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36
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37 if (SDL_Init(SDL_INIT_VIDEO) < 0)
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38 {
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39 fprintf(stderr, "Unable to init SDL: %s\n", SDL_GetError());
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40 return -1;
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41 }
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42
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43 /* Initialize fonts */
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44 TTF_Init();
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45
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46 font = TTF_OpenFont(DEFAULT_FONT, DEFAULT_PTSIZE);
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47 if (! font)
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48 {
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49 fprintf(stderr, "Failed to find font: %s\n", SDL_GetError());
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50 exit(-1);
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51 }
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52
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53 atexit(SDL_Quit);
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54
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55 /* Create window */
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56 screen = SDL_SetVideoMode(width, height, 32,
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57 SDL_HWSURFACE | SDL_DOUBLEBUF);
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58 if (screen == NULL)
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59 {
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60 fprintf(stderr, "Unable to set %dx%d video: %s\n",
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61 width, height, SDL_GetError());
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62 return -1;
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63 }
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64
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65 /* Prepare a rect for text input */
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66 SDL_Rect textRect = { 100, 80, 300, 50 }, markedRect;
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67 Uint32 backColor = SDL_MapRGB(screen->format, 0xFF, 0xFF, 0xFF);
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68 SDL_Color textColor = { 0, 0, 0 };
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69 SDL_FillRect(screen, &textRect, backColor);
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70
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71 markedRect = textRect;
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72 SDL_StartTextInput(&markedRect);
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73
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74 SDL_Flip(screen);
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75
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76 SDL_Event event;
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77 int done = 0, inputed = 0;
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78 int w, h;
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79 char text[MAX_TEXT_LENGTH];
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80
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81 while (! done && SDL_WaitEvent(&event))
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82 {
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83 switch (event.type)
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84 {
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85 case SDL_KEYDOWN:
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86 fprintf(stderr,
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87 "Keyboard %d: scancode 0x%08X = %s, keycode 0x%08X = %s\n",
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88 event.key.which, event.key.keysym.scancode,
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89 SDL_GetScancodeName(event.key.keysym.scancode),
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90 event.key.keysym.sym, SDL_GetKeyName(event.key.keysym.sym));
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91 break;
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92
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93 case SDL_TEXTINPUT:
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94 fprintf(stderr, "Keyboard %d: text input \"%s\"\n",
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95 event.text.which, event.text.text);
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96
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97 if (inputed < sizeof(text))
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98 {
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99 strcpy(text + inputed, event.text.text);
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100 inputed += strlen(event.text.text);
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101 }
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102
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103 fprintf(stderr, "text inputed: %s\n", text);
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104 SDL_FillRect(screen, &textRect, backColor);
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105
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106 render_text(screen, font, text, textRect.x, textRect.y, textColor);
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107 TTF_SizeUTF8(font, text, &w, &h);
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108 markedRect.x = textRect.x + w;
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109 SDL_Flip(screen);
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110
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111 SDL_StartTextInput(&markedRect);
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112 break;
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113
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114 case SDL_QUIT:
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115 done = 1;
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116 break;
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117
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118 default:
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119 break;
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120 }
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121 }
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122
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123 TTF_CloseFont(font);
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124 TTF_Quit();
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125
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126 return 0;
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127 }
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128
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