Mercurial > sdl-ios-xcode
annotate test/testime.c @ 5154:8ef640410ac9
SDL doesn't actually support the physical/logical palette split anymore.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Tue, 01 Feb 2011 21:51:09 -0800 |
parents | 1435f8a6425c |
children | 762e40fb8e28 |
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1 /* A simple program to test the Input Method support in the SDL library (1.3+) */ |
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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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12 #define DEFAULT_PTSIZE 30 |
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13 #define DEFAULT_FONT "/System/Library/Fonts/华文细黑.ttf" |
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14 #define MAX_TEXT_LENGTH 256 |
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15 |
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16 SDL_Surface *screen; |
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17 |
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18 #ifdef HAVE_SDL_TTF |
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19 TTF_Font *font; |
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20 #endif |
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21 SDL_Rect textRect, markedRect; |
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22 Uint32 lineColor, backColor; |
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23 SDL_Color textColor = { 0, 0, 0 }; |
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24 char text[MAX_TEXT_LENGTH], markedText[SDL_TEXTEDITINGEVENT_TEXT_SIZE]; |
4757 | 25 int cursor = 0; |
26 | |
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27 size_t utf8_length(unsigned char c) |
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28 { |
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29 c = (unsigned char)(0xff & c); |
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30 if (c < 0x80) |
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31 return 1; |
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32 else if ((c >> 5) ==0x6) |
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33 return 2; |
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34 else if ((c >> 4) == 0xe) |
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35 return 3; |
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36 else if ((c >> 3) == 0x1e) |
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37 return 4; |
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38 else |
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39 return 0; |
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40 } |
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41 |
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42 char *utf8_next(char *p) |
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43 { |
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44 size_t len = utf8_length(*p); |
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45 size_t i = 0; |
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46 if (!len) |
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47 return 0; |
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48 |
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49 for (; i < len; ++i) |
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50 { |
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51 ++p; |
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52 if (!*p) |
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53 return 0; |
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54 } |
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55 return p; |
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56 } |
4757 | 57 |
58 char *utf8_advance(char *p, size_t distance) | |
59 { | |
60 size_t i = 0; | |
61 for (; i < distance && p; ++i) | |
62 { | |
63 p = utf8_next(p); | |
64 } | |
65 return p; | |
66 } | |
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67 |
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68 void usage() |
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69 { |
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70 printf("usage: testime [--font fontfile] [--fullscreen]\n"); |
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71 exit(0); |
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72 } |
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73 |
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74 void InitVideo(int argc, char *argv[]) |
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75 { |
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76 int width = 640, height = 480; |
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77 int flags = SDL_HWSURFACE; |
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78 const char *fontname = DEFAULT_FONT; |
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79 int fullscreen = 0; |
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80 |
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81 for (argc--, argv++; argc > 0; argc--, argv++) |
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82 { |
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83 if (strcmp(argv[0], "--help") == 0) |
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84 usage(); |
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85 |
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86 else if (strcmp(argv[0], "--fullscreen") == 0) |
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87 fullscreen = 1; |
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88 |
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89 else if (strcmp(argv[0], "--font") == 0) |
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90 { |
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91 argc--; |
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92 argv++; |
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93 |
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94 if (argc > 0) |
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95 fontname = argv[0]; |
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96 else |
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97 usage(); |
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98 } |
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99 } |
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100 |
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101 SDL_setenv("SDL_VIDEO_WINDOW_POS", "center", 1); |
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102 if (SDL_Init(SDL_INIT_VIDEO) < 0) |
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103 { |
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104 fprintf(stderr, "Unable to init SDL: %s\n", SDL_GetError()); |
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105 exit(-1); |
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106 } |
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107 |
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108 #ifdef HAVE_SDL_TTF |
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109 /* Initialize fonts */ |
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110 TTF_Init(); |
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111 |
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112 font = TTF_OpenFont(fontname, DEFAULT_PTSIZE); |
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113 if (! font) |
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114 { |
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115 fprintf(stderr, "Failed to find font: %s\n", TTF_GetError()); |
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116 exit(-1); |
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117 } |
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118 #endif |
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119 |
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120 printf("Using font: %s\n", fontname); |
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121 atexit(SDL_Quit); |
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122 |
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123 if (fullscreen) |
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124 { |
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125 SDL_DisplayMode mode; |
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126 SDL_GetDesktopDisplayMode(&mode); |
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127 |
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128 width = mode.w; |
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129 height = mode.h; |
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130 fprintf(stderr, "%dx%d\n", width, height); |
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131 flags |= SDL_FULLSCREEN; |
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132 } |
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133 |
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134 /* Create window */ |
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135 screen = SDL_SetVideoMode(width, height, 32, flags); |
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136 if (screen == NULL) |
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137 { |
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138 fprintf(stderr, "Unable to set %dx%d video: %s\n", |
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139 width, height, SDL_GetError()); |
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140 exit(-1); |
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141 } |
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142 } |
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143 |
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144 void CleanupVideo() |
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145 { |
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146 SDL_StopTextInput(); |
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147 #ifdef HAVE_SDL_TTF |
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148 TTF_CloseFont(font); |
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149 TTF_Quit(); |
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150 #endif |
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151 } |
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152 |
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153 void InitInput() |
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154 { |
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155 backColor = SDL_MapRGB(screen->format, 0xFF, 0xFF, 0xFF); |
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156 lineColor = SDL_MapRGB(screen->format, 0x0, 0x0, 0x0); |
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157 |
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158 /* Prepare a rect for text input */ |
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159 textRect.x = textRect.y = 100; |
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160 textRect.w = screen->w - 2 * textRect.x; |
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161 textRect.h = 50; |
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162 |
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163 text[0] = 0; |
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164 markedRect = textRect; |
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165 markedText[0] = 0; |
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166 |
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167 SDL_StartTextInput(); |
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168 } |
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169 |
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170 #ifdef HAVE_SDL_TTF |
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171 static void RenderText(SDL_Surface *sur, |
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172 TTF_Font *font, |
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173 const char *text, |
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174 int x, int y, |
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175 SDL_Color color) |
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176 { |
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177 if (text && *text) { |
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178 SDL_Surface *textSur = TTF_RenderUTF8_Blended(font, text, color); |
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179 SDL_Rect dest = { x, y, textSur->w, textSur->h }; |
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180 |
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181 SDL_BlitSurface(textSur, NULL, sur, &dest); |
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182 SDL_FreeSurface(textSur); |
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183 } |
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184 } |
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185 #endif |
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186 |
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187 void Redraw() |
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188 { |
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189 int w = 0, h = textRect.h; |
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190 SDL_Rect cursorRect, underlineRect; |
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191 |
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192 SDL_FillRect(screen, &textRect, backColor); |
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193 |
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194 #ifdef HAVE_SDL_TTF |
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195 if (*text) |
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196 { |
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197 RenderText(screen, font, text, textRect.x, textRect.y, textColor); |
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198 TTF_SizeUTF8(font, text, &w, &h); |
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199 } |
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200 #endif |
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201 |
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202 markedRect.x = textRect.x + w; |
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203 markedRect.w = textRect.w - w; |
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204 if (markedRect.w < 0) |
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205 { |
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206 SDL_Flip(screen); |
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207 // Stop text input because we cannot hold any more characters |
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208 SDL_StopTextInput(); |
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209 return; |
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210 } |
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211 else |
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212 { |
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213 SDL_StartTextInput(); |
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214 } |
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215 |
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216 cursorRect = markedRect; |
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217 cursorRect.w = 2; |
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218 cursorRect.h = h; |
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219 |
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220 SDL_FillRect(screen, &markedRect, backColor); |
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221 if (markedText[0]) |
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222 { |
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223 #ifdef HAVE_SDL_TTF |
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225 { | |
226 char *p = utf8_advance(markedText, cursor); | |
227 char c = 0; | |
228 if (!p) | |
229 p = &markedText[strlen(markedText)]; | |
230 | |
231 c = *p; | |
232 *p = 0; | |
233 TTF_SizeUTF8(font, markedText, &w, 0); | |
234 cursorRect.x += w; | |
235 *p = c; | |
236 } | |
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237 RenderText(screen, font, markedText, markedRect.x, markedRect.y, textColor); |
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238 TTF_SizeUTF8(font, markedText, &w, &h); |
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239 #endif |
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240 |
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241 underlineRect = markedRect; |
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242 underlineRect.y += (h - 2); |
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243 underlineRect.h = 2; |
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244 underlineRect.w = w; |
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245 |
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246 SDL_FillRect(screen, &underlineRect, lineColor); |
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247 } |
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248 |
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249 SDL_FillRect(screen, &cursorRect, lineColor); |
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250 |
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251 SDL_Flip(screen); |
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252 |
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253 SDL_SetTextInputRect(&markedRect); |
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254 } |
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255 |
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256 void |
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257 HotKey_ToggleFullScreen(void) |
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258 { |
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259 SDL_Surface *screen; |
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260 |
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261 screen = SDL_GetVideoSurface(); |
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262 if (SDL_WM_ToggleFullScreen(screen)) { |
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263 printf("Toggled fullscreen mode - now %s\n", |
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264 (screen->flags & SDL_FULLSCREEN) ? "fullscreen" : "windowed"); |
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265 } else { |
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266 printf("Unable to toggle fullscreen mode\n"); |
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267 } |
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268 } |
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269 |
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270 int main(int argc, char *argv[]) |
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271 { |
3338 | 272 SDL_Event event; |
273 int done = 0; | |
274 | |
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275 InitVideo(argc, argv); |
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276 InitInput(); |
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277 Redraw(); |
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278 |
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279 while (! done && SDL_WaitEvent(&event)) |
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280 { |
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281 switch (event.type) |
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282 { |
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283 case SDL_KEYDOWN: |
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284 switch (event.key.keysym.sym) |
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285 { |
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286 case SDLK_ESCAPE: |
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287 done = 1; |
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288 break; |
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289 case SDLK_RETURN: |
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290 text[0]=0x00; |
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291 Redraw(); |
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292 break; |
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293 case SDLK_BACKSPACE: |
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294 { |
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295 int textlen=SDL_strlen(text); |
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296 |
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297 do { |
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298 if (textlen==0) |
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299 { |
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300 break; |
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301 } |
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302 if ((text[textlen-1] & 0x80) == 0x00) |
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303 { |
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304 /* One byte */ |
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305 text[textlen-1]=0x00; |
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306 break; |
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307 } |
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308 if ((text[textlen-1] & 0xC0) == 0x80) |
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309 { |
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310 /* Byte from the multibyte sequence */ |
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311 text[textlen-1]=0x00; |
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312 textlen--; |
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313 } |
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314 if ((text[textlen-1] & 0xC0) == 0xC0) |
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315 { |
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316 /* First byte of multibyte sequence */ |
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317 text[textlen-1]=0x00; |
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318 break; |
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319 } |
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320 } while(1); |
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321 |
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322 Redraw(); |
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323 } |
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324 break; |
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325 } |
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326 |
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327 if (done) |
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328 { |
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329 break; |
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330 } |
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331 |
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332 fprintf(stderr, |
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333 "Keyboard: scancode 0x%08X = %s, keycode 0x%08X = %s\n", |
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334 event.key.keysym.scancode, |
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335 SDL_GetScancodeName(event.key.keysym.scancode), |
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336 event.key.keysym.sym, SDL_GetKeyName(event.key.keysym.sym)); |
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337 break; |
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338 |
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339 case SDL_TEXTINPUT: |
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340 if (SDL_strlen(event.text.text) == 0 || event.text.text[0] == '\n' || |
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341 markedRect.w < 0) |
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342 break; |
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343 |
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344 fprintf(stderr, "Keyboard: text input \"%s\"\n", event.text.text); |
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345 |
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346 if (SDL_strlen(text) + SDL_strlen(event.text.text) < sizeof(text)) |
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347 SDL_strlcat(text, event.text.text, sizeof(text)); |
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348 |
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349 fprintf(stderr, "text inputed: %s\n", text); |
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350 |
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351 // After text inputed, we can clear up markedText because it |
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352 // is committed |
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353 markedText[0] = 0; |
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354 Redraw(); |
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355 break; |
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356 |
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357 case SDL_TEXTEDITING: |
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358 fprintf(stderr, "text editing \"%s\", selected range (%d, %d)\n", |
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359 event.edit.text, event.edit.start, event.edit.length); |
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360 |
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361 strcpy(markedText, event.edit.text); |
4757 | 362 cursor = event.edit.start; |
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363 Redraw(); |
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364 break; |
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365 |
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366 case SDL_QUIT: |
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367 done = 1; |
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368 break; |
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369 |
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370 default: |
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371 break; |
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372 } |
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373 } |
00cace2d9080
Merged a cleaned up version of Jiang's code changes from Google Summer of Code 2009
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
374 |
00cace2d9080
Merged a cleaned up version of Jiang's code changes from Google Summer of Code 2009
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
375 CleanupVideo(); |
00cace2d9080
Merged a cleaned up version of Jiang's code changes from Google Summer of Code 2009
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
376 return 0; |
00cace2d9080
Merged a cleaned up version of Jiang's code changes from Google Summer of Code 2009
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
377 } |