annotate src/video/bwindow/SDL_BWin.h @ 4143:73e7e7f5b5a1 SDL-1.2

Don't recreate the GL content in windib target if SDL_SetVideoMode() is being called in response to a window resize event...prevents loss of GL state and objects.
author Ryan C. Gordon <icculus@icculus.org>
date Wed, 12 Mar 2008 22:01:48 +0000
parents 5804139bdf0b
children a1b03ba2fcd0
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22
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23 #ifndef _SDL_BWin_h
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24 #define _SDL_BWin_h
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25
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26 #include "SDL_config.h"
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27
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28 #include <stdio.h>
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29 #include <AppKit.h>
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30 #include <InterfaceKit.h>
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31 #include <be/game/DirectWindow.h>
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32 #if SDL_VIDEO_OPENGL
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33 #include <be/opengl/GLView.h>
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34 #endif
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35 #include <support/UTF8.h>
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36
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37 #include "../../main/beos/SDL_BeApp.h"
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38 #include "SDL_events.h"
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39 #include "SDL_BView.h"
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40
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41 extern "C" {
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42 #include "../../events/SDL_events_c.h"
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43
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44 extern int mouse_relative;
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45 };
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46
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47 class SDL_BWin : public BDirectWindow
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48 {
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49 public:
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50 SDL_BWin(BRect bounds) :
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51 BDirectWindow(bounds, "Untitled", B_TITLED_WINDOW, 0) {
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52 last_buttons = 0;
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53 the_view = NULL;
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54 #if SDL_VIDEO_OPENGL
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55 SDL_GLView = NULL;
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56 #endif
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57 SDL_View = NULL;
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58 Unlock();
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59 shown = false;
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60 inhibit_resize = false;
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61 }
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62
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63 virtual ~SDL_BWin() {
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64 Lock();
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65 if ( the_view ) {
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66 #if SDL_VIDEO_OPENGL
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67 if ( the_view == SDL_GLView ) {
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68 SDL_GLView->UnlockGL();
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69 }
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70 #endif
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71 RemoveChild(the_view);
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72 the_view = NULL;
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73 }
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74 Unlock();
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75 #if SDL_VIDEO_OPENGL
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76 if ( SDL_GLView ) {
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77 delete SDL_GLView;
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78 }
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79 #endif
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80 if ( SDL_View ) {
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81 delete SDL_View;
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82 }
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83 }
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84
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85
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86 /* Override the Show() method so we can tell when we've been shown */
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87 virtual void Show(void) {
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88 BWindow::Show();
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89 shown = true;
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90 }
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91 virtual bool Shown(void) {
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92 return (shown);
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93 }
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94 /* If called, the next resize event will not be forwarded to SDL. */
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95 virtual void InhibitResize(void) {
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96 inhibit_resize=true;
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97 }
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98 /* Handle resizing of the window */
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99 virtual void FrameResized(float width, float height) {
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100 if(inhibit_resize)
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101 inhibit_resize = false;
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102 else
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103 SDL_PrivateResize((int)width, (int)height);
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104 }
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105 virtual int CreateView(Uint32 flags, Uint32 gl_flags) {
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106 int retval;
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107
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108 retval = 0;
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109 Lock();
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110 if ( flags & SDL_OPENGL ) {
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111 #if SDL_VIDEO_OPENGL
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112 if ( SDL_GLView == NULL ) {
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113 SDL_GLView = new BGLView(Bounds(), "SDL GLView",
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114 B_FOLLOW_ALL_SIDES, (B_WILL_DRAW|B_FRAME_EVENTS),
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115 gl_flags);
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116 SDL_GLView->EnableDirectMode(true);
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117 }
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118 if ( the_view != SDL_GLView ) {
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119 if ( the_view ) {
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120 RemoveChild(the_view);
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121 }
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122 AddChild(SDL_GLView);
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123 SDL_GLView->LockGL();
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124 the_view = SDL_GLView;
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125 }
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126 #else
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127 SDL_SetError("OpenGL support not enabled");
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128 retval = -1;
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129 #endif
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130 } else {
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131 if ( SDL_View == NULL ) {
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132 SDL_View = new SDL_BView(Bounds());
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133 }
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134 if ( the_view != SDL_View ) {
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135 if ( the_view ) {
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136 #if SDL_VIDEO_OPENGL
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137 if ( the_view == SDL_GLView ) {
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138 SDL_GLView->UnlockGL();
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139 }
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140 #endif
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141 RemoveChild(the_view);
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142 }
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143 AddChild(SDL_View);
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144 the_view = SDL_View;
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145 }
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146 }
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147 Unlock();
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148 return(retval);
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149 }
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150 virtual void SetBitmap(BBitmap *bitmap) {
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151 SDL_View->SetBitmap(bitmap);
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152 }
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153 virtual void SetXYOffset(int x, int y) {
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154 #if SDL_VIDEO_OPENGL
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155 if ( the_view == SDL_GLView ) {
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156 return;
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157 }
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158 #endif
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159 SDL_View->SetXYOffset(x, y);
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160 }
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161 virtual void GetXYOffset(int &x, int &y) {
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162 #if SDL_VIDEO_OPENGL
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163 if ( the_view == SDL_GLView ) {
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164 x = 0;
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165 y = 0;
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166 return;
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167 }
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168 #endif
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169 SDL_View->GetXYOffset(x, y);
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170 }
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171 virtual void GetXYOffset(float &x, float &y) {
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172 #if SDL_VIDEO_OPENGL
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173 if ( the_view == SDL_GLView ) {
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174 x = 0.0f;
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175 y = 0.0f;
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176 return;
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177 }
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178 #endif
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179 SDL_View->GetXYOffset(x, y);
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180 }
0
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181 virtual bool BeginDraw(void) {
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182 return(Lock());
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183 }
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184 virtual void DrawAsync(BRect updateRect) {
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185 SDL_View->DrawAsync(updateRect);
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186 }
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187 virtual void EndDraw(void) {
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188 SDL_View->Sync();
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189 Unlock();
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190 }
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191 #if SDL_VIDEO_OPENGL
0
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192 virtual void SwapBuffers(void) {
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193 SDL_GLView->UnlockGL();
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194 SDL_GLView->LockGL();
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195 SDL_GLView->SwapBuffers();
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196 }
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197 #endif
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198 virtual BView *View(void) {
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199 return(the_view);
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200 }
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201
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202 /* Hook functions -- overridden */
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203 virtual void Minimize(bool minimize) {
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204 /* This is only called when mimimized, not when restored */
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205 //SDL_PrivateAppActive(minimize, SDL_APPACTIVE);
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206 BWindow::Minimize(minimize);
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207 }
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208 virtual void WindowActivated(bool active) {
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209 SDL_PrivateAppActive(active, SDL_APPINPUTFOCUS);
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210 }
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211 virtual bool QuitRequested(void) {
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212 if ( SDL_BeAppActive > 0 ) {
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213 SDL_PrivateQuit();
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214 /* We don't ever actually close the window here because
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215 the application should respond to the quit request,
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216 or ignore it as desired.
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217 */
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218 return(false);
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219 }
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220 return(true); /* Close the app window */
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221 }
906
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222 virtual void Quit() {
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223 if (!IsLocked())
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224 Lock();
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225 BDirectWindow::Quit();
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226 }
0
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227
907
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228 virtual int16 Translate2Unicode(const char *buf) {
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229 int32 state, srclen, dstlen;
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230 unsigned char destbuf[2];
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231 Uint16 unicode = 0;
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232
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233 if ((uchar)buf[0] > 127) {
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234 state = 0;
1336
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235 srclen = SDL_strlen(buf);
907
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236 dstlen = sizeof(destbuf);
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237 convert_from_utf8(B_UNICODE_CONVERSION, buf, &srclen, (char *)destbuf, &dstlen, &state);
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238 unicode = destbuf[0];
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239 unicode <<= 8;
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240 unicode |= destbuf[1];
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241 } else
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242 unicode = buf[0];
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243
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244 /* For some reason function keys map to control characters */
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245 # define CTRL(X) ((X)-'@')
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246 switch (unicode) {
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247 case CTRL('A'):
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248 case CTRL('B'):
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249 case CTRL('C'):
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250 case CTRL('D'):
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251 case CTRL('E'):
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diff changeset
252 case CTRL('K'):
3bd4d7a1ee04 Date: Mon, 21 Jun 2004 16:52:47 +0200
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253 case CTRL('L'):
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254 case CTRL('P'):
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255 if ( ! (SDL_GetModState() & KMOD_CTRL) )
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256 unicode = 0;
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257 break;
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258 /* Keyboard input maps newline to carriage return */
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259 case '\n':
3bd4d7a1ee04 Date: Mon, 21 Jun 2004 16:52:47 +0200
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260 unicode = '\r';
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261 break;
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diff changeset
262 default:
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diff changeset
263 break;
3bd4d7a1ee04 Date: Mon, 21 Jun 2004 16:52:47 +0200
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diff changeset
264 }
3bd4d7a1ee04 Date: Mon, 21 Jun 2004 16:52:47 +0200
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diff changeset
265
3bd4d7a1ee04 Date: Mon, 21 Jun 2004 16:52:47 +0200
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266 return unicode;
3bd4d7a1ee04 Date: Mon, 21 Jun 2004 16:52:47 +0200
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267 }
3bd4d7a1ee04 Date: Mon, 21 Jun 2004 16:52:47 +0200
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268
3878
678576473849 Fixed bug #286
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269 virtual void DispatchMessage(BMessage *msg, BHandler *target);
907
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270
0
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271 private:
1361
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diff changeset
272 #if SDL_VIDEO_OPENGL
0
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273 BGLView *SDL_GLView;
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274 #endif
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275 SDL_BView *SDL_View;
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276 BView *the_view;
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277 bool shown;
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278 bool inhibit_resize;
907
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279 int32 last_buttons;
0
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280 };
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281
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282 #endif /* _SDL_BWin_h */