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annotate test/testime.c @ 4750:22aa6a631d34

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Changed StartTextInput to take an SDL_Window parameter.
author dewyatt
date Thu, 08 Jul 2010 01:35:47 -0400
parents 3e69e077cb95
children 8c229370ddba b99b1024607a
rev   line source
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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 #ifdef HAVE_SDL_TTF
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9 #include "SDL_ttf.h"
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10 #endif
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11
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12 #define DEFAULT_PTSIZE 30
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13 #ifdef __QNXNTO__
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14 #define DEFAULT_FONT "/usr/photon/font_repository/tt0003m_.ttf"
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15 #else
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16 #define DEFAULT_FONT "/System/Library/Fonts/华文细黑.ttf"
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17 #endif
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18 #define MAX_TEXT_LENGTH 256
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19
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20 SDL_Surface *screen;
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21
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22 #ifdef HAVE_SDL_TTF
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23 TTF_Font *font;
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24 #endif
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25 SDL_Rect textRect, markedRect;
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26 Uint32 lineColor, backColor;
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27 SDL_Color textColor = { 0, 0, 0 };
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28 char text[MAX_TEXT_LENGTH], *markedText;
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29
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30 void usage()
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31 {
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32 printf("usage: testime [--font fontfile] [--fullscreen]\n");
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33 exit(0);
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34 }
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35
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36 void InitVideo(int argc, char *argv[])
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37 {
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38 int width = 640, height = 480;
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39 int flags = SDL_HWSURFACE;
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40 const char *fontname = DEFAULT_FONT;
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41 int fullscreen = 0;
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42
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43 for (argc--, argv++; argc > 0; argc--, argv++)
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44 {
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45 if (strcmp(argv[0], "--help") == 0)
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46 usage();
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47
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48 else if (strcmp(argv[0], "--fullscreen") == 0)
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49 fullscreen = 1;
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50
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51 else if (strcmp(argv[0], "--font") == 0)
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52 {
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53 argc--;
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54 argv++;
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55
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56 if (argc > 0)
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57 fontname = argv[0];
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58 else
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59 usage();
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60 }
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61 }
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62
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63 SDL_setenv("SDL_VIDEO_WINDOW_POS", "center", 1);
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64 if (SDL_Init(SDL_INIT_VIDEO) < 0)
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65 {
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66 fprintf(stderr, "Unable to init SDL: %s\n", SDL_GetError());
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67 exit(-1);
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68 }
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69
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70 #ifdef HAVE_SDL_TTF
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71 /* Initialize fonts */
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72 TTF_Init();
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73
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74 font = TTF_OpenFont(fontname, DEFAULT_PTSIZE);
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75 if (! font)
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76 {
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77 fprintf(stderr, "Failed to find font: %s\n", TTF_GetError());
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78 exit(-1);
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79 }
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80 #endif
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81
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82 printf("Using font: %s\n", fontname);
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83 atexit(SDL_Quit);
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84
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85 if (fullscreen)
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86 {
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87 SDL_DisplayMode mode;
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88 SDL_GetDesktopDisplayMode(&mode);
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89
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90 width = mode.w;
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91 height = mode.h;
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92 fprintf(stderr, "%dx%d\n", width, height);
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93 flags |= SDL_FULLSCREEN;
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94 }
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95
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96 /* Create window */
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97 screen = SDL_SetVideoMode(width, height, 32, flags);
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98 if (screen == NULL)
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99 {
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100 fprintf(stderr, "Unable to set %dx%d video: %s\n",
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101 width, height, SDL_GetError());
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102 exit(-1);
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103 }
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104 }
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105
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106 void CleanupVideo()
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107 {
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108 SDL_StopTextInput();
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109 #ifdef HAVE_SDL_TTF
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110 TTF_CloseFont(font);
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111 TTF_Quit();
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112 #endif
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113 }
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114
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115 void InitInput()
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116 {
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117 backColor = SDL_MapRGB(screen->format, 0xFF, 0xFF, 0xFF);
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118 lineColor = SDL_MapRGB(screen->format, 0x0, 0x0, 0x0);
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119
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120 /* Prepare a rect for text input */
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121 textRect.x = textRect.y = 100;
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122 textRect.w = screen->w - 2 * textRect.x;
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123 textRect.h = 50;
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124
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125 text[0] = 0;
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126 markedRect = textRect;
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127 markedText = NULL;
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128
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129 SDL_StartTextInput();
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130 }
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131
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132 #ifdef HAVE_SDL_TTF
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133 static void RenderText(SDL_Surface *sur,
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134 TTF_Font *font,
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135 const char *text,
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136 int x, int y,
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137 SDL_Color color)
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138 {
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139 SDL_Surface *textSur = TTF_RenderUTF8_Blended(font, text, color);
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140 SDL_Rect dest = { x, y, textSur->w, textSur->h };
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141
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142 SDL_BlitSurface(textSur, NULL, sur, &dest);
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143 SDL_FreeSurface(textSur);
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144 }
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145 #endif
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146
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147 void Redraw()
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148 {
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149 int w = 0, h = textRect.h;
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150 SDL_Rect cursorRect, underlineRect;
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151
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152 SDL_FillRect(screen, &textRect, backColor);
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153
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154 #ifdef HAVE_SDL_TTF
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155 if (strlen(text))
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156 {
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157 RenderText(screen, font, text, textRect.x, textRect.y, textColor);
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158 TTF_SizeUTF8(font, text, &w, &h);
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159 }
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160 #endif
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161
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162 markedRect.x = textRect.x + w;
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163 markedRect.w = textRect.w - w;
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164 if (markedRect.w < 0)
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165 {
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166 SDL_Flip(screen);
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167 // Stop text input because we cannot hold any more characters
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168 SDL_StopTextInput();
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169 return;
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170 }
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171 else
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172 {
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173 SDL_StartTextInput();
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174 }
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175
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176 cursorRect = markedRect;
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177 cursorRect.w = 2;
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178 cursorRect.h = h;
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179
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180 SDL_FillRect(screen, &markedRect, backColor);
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181 if (markedText)
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182 {
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183 #ifdef HAVE_SDL_TTF
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184 RenderText(screen, font, markedText, markedRect.x, markedRect.y, textColor);
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185 TTF_SizeUTF8(font, markedText, &w, &h);
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186 #endif
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187
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188 underlineRect = markedRect;
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189 underlineRect.y += (h - 2);
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190 underlineRect.h = 2;
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191 underlineRect.w = w;
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192
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193 cursorRect.x += w + 1;
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194
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195 SDL_FillRect(screen, &underlineRect, lineColor);
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196 }
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197
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198 SDL_FillRect(screen, &cursorRect, lineColor);
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199
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200 SDL_Flip(screen);
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201
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202 SDL_SetTextInputRect(&markedRect);
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203 }
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204
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205 void
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206 HotKey_ToggleFullScreen(void)
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207 {
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208 SDL_Surface *screen;
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diff changeset
209
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diff changeset
210 screen = SDL_GetVideoSurface();
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211 if (SDL_WM_ToggleFullScreen(screen)) {
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diff changeset
212 printf("Toggled fullscreen mode - now %s\n",
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213 (screen->flags & SDL_FULLSCREEN) ? "fullscreen" : "windowed");
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214 } else {
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215 printf("Unable to toggle fullscreen mode\n");
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216 }
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217 }
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218
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219 int main(int argc, char *argv[])
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220 {
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221 SDL_Event event;
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222 int done = 0;
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diff changeset
223
3280
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224 InitVideo(argc, argv);
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225 InitInput();
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226 Redraw();
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227
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228 while (! done && SDL_WaitEvent(&event))
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229 {
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230 switch (event.type)
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diff changeset
231 {
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232 case SDL_KEYDOWN:
3478
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233 switch (event.key.keysym.sym)
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234 {
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235 case SDLK_ESCAPE:
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236 done = 1;
f7541260e89c Added support for QNX default font. Backspace and Return keys now handled.
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237 break;
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238 case SDLK_RETURN:
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239 text[0]=0x00;
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240 Redraw();
f7541260e89c Added support for QNX default font. Backspace and Return keys now handled.
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241 break;
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242 case SDLK_BACKSPACE:
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243 {
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244 int textlen=SDL_strlen(text);
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245
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246 do {
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247 if (textlen==0)
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248 {
f7541260e89c Added support for QNX default font. Backspace and Return keys now handled.
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diff changeset
249 break;
f7541260e89c Added support for QNX default font. Backspace and Return keys now handled.
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250 }
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251 if ((text[textlen-1] & 0x80) == 0x00)
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252 {
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253 /* One byte */
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254 text[textlen-1]=0x00;
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255 break;
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diff changeset
256 }
f7541260e89c Added support for QNX default font. Backspace and Return keys now handled.
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257 if ((text[textlen-1] & 0xC0) == 0x80)
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diff changeset
258 {
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diff changeset
259 /* Byte from the multibyte sequence */
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260 text[textlen-1]=0x00;
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diff changeset
261 textlen--;
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diff changeset
262 }
f7541260e89c Added support for QNX default font. Backspace and Return keys now handled.
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diff changeset
263 if ((text[textlen-1] & 0xC0) == 0xC0)
f7541260e89c Added support for QNX default font. Backspace and Return keys now handled.
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264 {
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265 /* First byte of multibyte sequence */
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266 text[textlen-1]=0x00;
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267 break;
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268 }
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269 } while(1);
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270
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271 Redraw();
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272 }
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273 break;
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274 }
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275
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276 if (done)
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277 {
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278 break;
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279 }
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280
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281 fprintf(stderr,
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282 "Keyboard: scancode 0x%08X = %s, keycode 0x%08X = %s\n",
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283 event.key.keysym.scancode,
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284 SDL_GetScancodeName(event.key.keysym.scancode),
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285 event.key.keysym.sym, SDL_GetKeyName(event.key.keysym.sym));
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286 break;
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287
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288 case SDL_TEXTINPUT:
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289 if (SDL_strlen(event.text.text) == 0 || event.text.text[0] == '\n' ||
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290 markedRect.w < 0)
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291 break;
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292
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293 fprintf(stderr, "Keyboard: text input \"%s\"\n", event.text.text);
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294
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295 if (SDL_strlen(text) + SDL_strlen(event.text.text) < sizeof(text))
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296 strcpy(text + SDL_strlen(text), event.text.text);
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297
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298 fprintf(stderr, "text inputed: %s\n", text);
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299
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300 // After text inputed, we can clear up markedText because it
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301 // is committed
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302 markedText = NULL;
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303 Redraw();
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304 break;
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305
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306 case SDL_TEXTEDITING:
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307 fprintf(stderr, "text editing \"%s\", selected range (%d, %d)\n",
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308 event.edit.text, event.edit.start, event.edit.length);
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309
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310 markedText = event.edit.text;
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311 Redraw();
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312 break;
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313
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314 case SDL_QUIT:
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315 done = 1;
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316 break;
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317
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318 default:
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319 break;
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320 }
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321 }
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322
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323 CleanupVideo();
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324 return 0;
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325 }