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SDL_BView.h
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SDL_BView.h
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#ifndef _SDL_BView_h
#define _SDL_BView_h
/* This is the event handling and graphics update portion of SDL_BWin */
extern "C" {
#include "../../events/SDL_events_c.h"
};
class SDL_BView : public BView
{
public:
SDL_BView(BRect frame) :
BView(frame, "SDL View", B_FOLLOW_ALL_SIDES,
(B_WILL_DRAW|B_FRAME_EVENTS)) {
image = NULL;
xoff = yoff = 0;
SetViewColor(0,0,0,0);
SetHighColor(0,0,0,0);
}
virtual ~SDL_BView() {
SetBitmap(NULL);
}
/* Set drawing offsets for fullscreen mode */
virtual void SetXYOffset(int x, int y) {
xoff = x;
yoff = y;
}
virtual void GetXYOffset(int &x, int &y) {
x = xoff;
y = yoff;
}
virtual void GetXYOffset(float &x, float &y) {
x = (float)xoff;
y = (float)yoff;
}
/* The view changed size. If it means we're in fullscreen, we
* draw a nice black box in the entire view to get black borders.
*/
virtual void FrameResized(float width, float height) {
BRect bounds;
bounds.top = bounds.left = 0;
bounds.right = width;
bounds.bottom = height;
/* Fill the entire view with black */
FillRect(bounds, B_SOLID_HIGH);
/* And if there's an image, redraw it. */
if( image ) {
bounds = image->Bounds();
Draw(bounds);
}
}
/* Drawing portion of this complete breakfast. :) */
virtual void SetBitmap(BBitmap *bitmap) {
if ( image ) {
delete image;
}
image = bitmap;
}
virtual void Draw(BRect updateRect) {
if ( image ) {
if(xoff || yoff) {
BRect dest;
dest.top = updateRect.top + yoff;
dest.left = updateRect.left + xoff;
dest.bottom = updateRect.bottom + yoff;
dest.right = updateRect.right + xoff;
DrawBitmap(image, updateRect, dest);
} else {
DrawBitmap(image, updateRect, updateRect);
}
}
}
virtual void DrawAsync(BRect updateRect) {
if(xoff || yoff) {
BRect dest;
dest.top = updateRect.top + yoff;
dest.left = updateRect.left + xoff;
dest.bottom = updateRect.bottom + yoff;
dest.right = updateRect.right + xoff;;
DrawBitmapAsync(image, updateRect, dest);
} else {
DrawBitmapAsync(image, updateRect, updateRect);
}
}
private:
BBitmap *image;
int xoff, yoff;
};
#endif /* _SDL_BView_h */