src/video/bwindow/SDL_BWin.h
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FUNCTIONS
This source file includes following functions.
- SDL_BWin
- Show
- Shown
- InhibitResize
- FrameResized
- CreateView
- SetBitmap
- SetXYOffset
- BeginDraw
- DrawAsync
- EndDraw
- SwapBuffers
- View
- Minimize
- WindowActivated
- QuitRequested
1 /*
2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga
4
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Library General Public
7 License as published by the Free Software Foundation; either
8 version 2 of the License, or (at your option) any later version.
9
10 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Library General Public License for more details.
14
15 You should have received a copy of the GNU Library General Public
16 License along with this library; if not, write to the Free
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18
19 Sam Lantinga
20 slouken@devolution.com
21 */
22
23 #ifdef SAVE_RCSID
24 static char rcsid =
25 "@(#) $Id: SDL_BWin.h,v 1.2.2.7 2001/02/10 07:20:05 hercules Exp $";
26 #endif
27
28 #ifndef _SDL_BWin_h
29 #define _SDL_BWin_h
30
31 #include <stdio.h>
32 #include <AppKit.h>
33 #include <InterfaceKit.h>
34 #include <be/game/DirectWindow.h>
35 #ifdef HAVE_OPENGL
36 #include <be/opengl/GLView.h>
37 #endif
38
39 #include "SDL_BeApp.h"
40 #include "SDL_events.h"
41 #include "SDL_BView.h"
42
43 extern "C" {
44 #include "SDL_events_c.h"
45 };
46
47 class SDL_BWin : public BDirectWindow
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48 {
49 public:
50 SDL_BWin(BRect bounds) :
51 BDirectWindow(bounds, "Untitled", B_TITLED_WINDOW, 0) {
52 the_view = NULL;
53 #ifdef HAVE_OPENGL
54 SDL_GLView = NULL;
55 #endif
56 SDL_View = NULL;
57 Unlock();
58 shown = false;
59 inhibit_resize = false;
60 }
61 virtual ~SDL_BWin() {
62 Lock();
63 if ( the_view ) {
64 #ifdef HAVE_OPENGL
65 if ( the_view == SDL_GLView ) {
66 SDL_GLView->UnlockGL();
67 }
68 #endif
69 RemoveChild(the_view);
70 the_view = NULL;
71 }
72 Unlock();
73 #ifdef HAVE_OPENGL
74 if ( SDL_GLView ) {
75 delete SDL_GLView;
76 }
77 #endif
78 if ( SDL_View ) {
79 delete SDL_View;
80 }
81 }
82
83 /* Override the Show() method so we can tell when we've been shown */
84 virtual void Show(void) {
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85 BWindow::Show();
86 shown = true;
87 }
88 virtual bool Shown(void) {
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89 return (shown);
90 }
91 /* If called, the next resize event will not be forwarded to SDL. */
92 virtual void InhibitResize(void) {
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93 inhibit_resize=true;
94 }
95 /* Handle resizing of the window */
96 virtual void FrameResized(float width, float height) {
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97 if(inhibit_resize)
98 inhibit_resize = false;
99 else
100 SDL_PrivateResize((int)width, (int)height);
101 }
102 virtual int CreateView(Uint32 flags) {
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103 int retval;
104
105 retval = 0;
106 Lock();
107 if ( flags & SDL_OPENGL ) {
108 #ifdef HAVE_OPENGL
109 if ( SDL_GLView == NULL ) {
110 /* FIXME: choose BGL type via user flags */
111 SDL_GLView = new BGLView(Bounds(), "SDL GLView",
112 B_FOLLOW_ALL_SIDES,
113 (B_WILL_DRAW|B_FRAME_EVENTS),
114 (BGL_RGB|BGL_DOUBLE|BGL_DEPTH));
115 }
116 if ( the_view != SDL_GLView ) {
117 if ( the_view ) {
118 RemoveChild(the_view);
119 }
120 AddChild(SDL_GLView);
121 SDL_GLView->LockGL();
122 the_view = SDL_GLView;
123 }
124 #else
125 SDL_SetError("OpenGL support not enabled");
126 retval = -1;
127 #endif
128 } else {
129 if ( SDL_View == NULL ) {
130 SDL_View = new SDL_BView(Bounds());
131 }
132 if ( the_view != SDL_View ) {
133 if ( the_view ) {
134 #ifdef HAVE_OPENGL
135 if ( the_view == SDL_GLView ) {
136 SDL_GLView->UnlockGL();
137 }
138 #endif
139 RemoveChild(the_view);
140 }
141 AddChild(SDL_View);
142 the_view = SDL_View;
143 }
144 }
145 Unlock();
146 return(retval);
147 }
148 virtual void SetBitmap(BBitmap *bitmap) {
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149 SDL_View->SetBitmap(bitmap);
150 }
151 virtual void SetXYOffset(int x, int y) {
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152 #ifdef HAVE_OPENGL
153 if ( the_view == SDL_GLView ) {
154 return;
155 }
156 #endif
157 SDL_View->SetXYOffset(x, y);
158 }
159 virtual bool BeginDraw(void) {
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160 return(Lock());
161 }
162 virtual void DrawAsync(BRect updateRect) {
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163 SDL_View->DrawAsync(updateRect);
164 }
165 virtual void EndDraw(void) {
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166 SDL_View->Sync();
167 Unlock();
168 }
169 #ifdef HAVE_OPENGL
170 virtual void SwapBuffers(void) {
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171 SDL_GLView->UnlockGL();
172 SDL_GLView->LockGL();
173 SDL_GLView->SwapBuffers();
174 }
175 #endif
176 virtual BView *View(void) {
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177 return(the_view);
178 }
179
180 /* Hook functions -- overridden */
181 virtual void Minimize(bool minimize) {
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182 /* This is only called when mimimized, not when restored */
183 //SDL_PrivateAppActive(minimize, SDL_APPACTIVE);
184 BWindow::Minimize(minimize);
185 }
186 virtual void WindowActivated(bool active) {
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187 SDL_PrivateAppActive(active, SDL_APPINPUTFOCUS);
188 }
189 virtual bool QuitRequested(void) {
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190 if ( SDL_BeAppActive > 0 ) {
191 SDL_PrivateQuit();
192 /* We don't ever actually close the window here because
193 the application should respond to the quit request,
194 or ignore it as desired.
195 */
196 return(false);
197 }
198 return(true); /* Close the app window */
199 }
200
201 private:
202 #ifdef HAVE_OPENGL
203 BGLView *SDL_GLView;
204 #endif
205 SDL_BView *SDL_View;
206 BView *the_view;
207
208 bool shown;
209 bool inhibit_resize;
210 };
211
212 #endif /* _SDL_BWin_h */