ui_be.cpp

另一个分形程序

/*
 *     XaoS, a fast portable realtime fractal zoomer 
 *                  Copyright © 1996,1997 by
 *
 *      Jan Hubicka          ([e-mail])
 *      Thomas Marsh         ([e-mail])
 *
 *	ui_be.cpp	BeOS user interface code, Jens Kilian ([e-mail])
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <cstdio>
#include <cstring>
#include <malloc.h>

#include <Application.h>
#include <Autolock.h>
#include <Bitmap.h>
#include <ScrollBar.h>
#include <ByteOrder.h>
#include <GraphicsDefs.h>
#include <InterfaceDefs.h>
#include <StringView.h>
#include <View.h>
#include <Point.h>
#include <Rect.h>
#include <Screen.h>
#include <Box.h>
#include <Alert.h>

#include "XaoSWindow.h"
#include "XaoSDirectWindow.h"
#include "XaoSDirectScreen.h"
#include "XaoSMenu.h"
#include "XaoSView.h"
#include "MenuItem.h"
#include "XaoSDirectView.h"
#include "XaoSScreenView.h"
#include "XaoSEvent.h"
#include "XaoSDialog.h"

#include "version.h"
#include "cursor.h"
#include "fconfig.h"
#include "ui.h"
#include "xmenu.h"
#include "xerror.h"
#include "archaccel.h"

static void be_enabledisable(struct uih_context *c, CONST char *name);

static int visible=0;
static XaoSMenu *gpMenu;
static BView *mainView;
static BWindow *gpWindow;			// our BWindow
static XaoSWindow *gpNormalWindow;			// our BWindow for normal mode
static XaoSDirectWindow *gpDirectWindow;		// our BWindow for direct mode
static XaoSDirectScreen *gpDirectScreen;		// our BWindow for direct screen mode
static XaoSView *gpView;				// our BView
static XaoSDirectView *gpDirectView;			// our BView for direct mode
static BStringView *sView;
static BBox *boxView;
static int fullscreen;
static BRect *Previous=NULL;
static int isfullscreen;

const int NCOLORS = 256;				// # of colors in 8-bit mode
static int ignorequit=0;
static color_space gColorSpace;		// color space to use
static BBitmap *gpDisplayBuffer[2];		// display buffer
static size_t gBufferSize;	// size of buffer memory
static char *gpFractalBuffers[2] =	// fractal buffers
{
	0, 0
};
static int gCurrentBuffer;

extern int be_noalert;
extern struct ui_driver be_driver, be_direct_driver, be_screen_driver;
static int color8bit = 0;				// parameters settable from command line
static int bitmap = 0;
static int truecolor = 0;
static int hicolor = 0;
static int realcolor = 0;
static int grayscale = 0;
static char *window_size = 0;
static int view_width = XSIZE;
static int view_height = YSIZE;
static int async;
static CONST char *screen_mode="640x480x8";


static port_id mEventPort=0;
#define DIRECTWINDOW 1
#define DIRECTSCREEN 2
static int direct=0;

static void be_screen_display(void);

void be_get_imagespecs(int cs, int *imagetype, int *rmask, int *gmask, int *bmask)
{
        switch(cs) {
		case B_GRAY1:  
		  *imagetype = UI_MIBITMAP;
		  break;
		case B_GRAY8:  /* BeOS conversion routines don't seems to support this*/
		  *imagetype = UI_GRAYSCALE;
		  break;
		case B_CMAP8:
		  *imagetype = UI_FIXEDCOLOR;
		  break;
		case B_RGB24:  /*Untested*/
		case B_RGB24_BIG:
		  *imagetype = UI_TRUECOLOR24;
		  *rmask = 0x000000ff;
		  *gmask = 0x0000ff00;
		  *bmask = 0x00ff0000;
		  x_fatalerror("24bpp truecolor support is not compiled in. Contact authors\n");
		  break;
		case B_RGB32: 
		  *imagetype = UI_TRUECOLOR;
		  *rmask = B_HOST_TO_LENDIAN_INT32(0x00ff0000);
		  *gmask = B_HOST_TO_LENDIAN_INT32(0x0000ff00);
		  *bmask = B_HOST_TO_LENDIAN_INT32(0x000000ff);
		  break;
		case B_RGB32_BIG:   /*Untested*/
		  *imagetype = UI_TRUECOLOR;
		  *rmask = B_HOST_TO_BENDIAN_INT32(0x00ff0000);
		  *gmask = B_HOST_TO_BENDIAN_INT32(0x0000ff00);
		  *bmask = B_HOST_TO_BENDIAN_INT32(0x000000ff);
		  break;
                case B_RGB15:
                  *imagetype = UI_TRUECOLOR16;
                  *rmask = B_HOST_TO_LENDIAN_INT16(31 * 32 * 32);
                  *gmask = B_HOST_TO_LENDIAN_INT16(31 * 32);
                  *bmask = B_HOST_TO_LENDIAN_INT16(31);
                  break;
                case B_RGB16:
                  *imagetype = UI_TRUECOLOR16;
                  *rmask = B_HOST_TO_LENDIAN_INT16(31 * 64 * 32);
                  *gmask = B_HOST_TO_LENDIAN_INT16(63 * 32);
                  *bmask = B_HOST_TO_LENDIAN_INT16(31);
		  break;
                case B_RGB15_BIG:  /*Untested*/
                  *imagetype = UI_TRUECOLOR16;
                  *rmask = B_HOST_TO_BENDIAN_INT16(31 * 32 * 32);
                  *gmask = B_HOST_TO_BENDIAN_INT16(31 * 32);
                  *bmask = B_HOST_TO_BENDIAN_INT16(31);
                  break;
                case B_RGB16_BIG: /*Untested*/
                  *imagetype = UI_TRUECOLOR16;
                  *rmask = B_HOST_TO_BENDIAN_INT16(31 * 64 * 32);
                  *gmask = B_HOST_TO_BENDIAN_INT16(63 * 32);
                  *bmask = B_HOST_TO_BENDIAN_INT16(31);
		  break;
		default: x_fatalerror("Unsupported image type %i. Plase contact authors!", cs);

           }
}
// Return display buffer size.
static void be_get_size(int *x, int *y)
{
	// Select the display mode, trying to optimize performance.
	BScreen screen;
	color_space cs = screen.ColorSpace();

	const union {
		char c[4];
		int32 i;
	} test = { { 'B', 'e', 'O', 'S' } };
	const bool bigEndian = test.i == 'BeOS';
	if (!direct) {
		if (color8bit) cs=B_CMAP8;
		if (truecolor && cs!=B_RGB32 && cs!=B_RGB24 && cs!=B_RGB32_BIG && cs!=B_RGB24_BIG) cs=B_RGB32;
		if (hicolor && cs!=B_RGB16 && cs!=B_RGB16 && cs!=B_RGB16_BIG && cs!=B_RGB16_BIG) cs=B_RGB16;
		if (realcolor && cs!=B_RGB15 && cs!=B_RGB15 && cs!=B_RGB15_BIG && cs!=B_RGB15_BIG) cs=B_RGB15;
		if (grayscale) cs=B_GRAY8;
		if (bitmap) cs=B_GRAY1;
	} else {
	  /* Wait until cs is set. FIXME this is hack expecting that mov is atomic...grr */
          do {cs=gpDirectWindow->fFormat;} while(!cs);
        }
	if (cs==B_RGB16 || cs==B_RGB16_BIG) cs=bigEndian?B_RGB16_BIG: B_RGB16;
	if (cs==B_RGB15 || cs==B_RGB15_BIG) cs=bigEndian?B_RGB15_BIG: B_RGB15;
        be_get_imagespecs(cs, &be_driver.imagetype, &be_driver.rmask, &be_driver.gmask, &be_driver.bmask);

        gColorSpace=cs;
        be_direct_driver.imagetype = be_driver.imagetype;
        be_direct_driver.rmask = be_driver.rmask;
        be_direct_driver.gmask = be_driver.gmask;
        be_direct_driver.bmask = be_driver.bmask;
			
	*x = view_width;
	*y = view_height;
}

// XaoS has a somewhat different notion of buttons than BeOS ...
static int map_be_buttons(uint32 beButtons, uint32 /*modifiers*/)
{
	const uint32 bothButtons = B_PRIMARY_MOUSE_BUTTON|B_SECONDARY_MOUSE_BUTTON;
	if ((beButtons & bothButtons) == bothButtons) {
		// Left + right button -> middle, for serial mice (still buggy in DR9).
		return BUTTON2;
	}
	
	return ((beButtons & B_PRIMARY_MOUSE_BUTTON) ? BUTTON1 : 0)
		  | ((beButtons & B_SECONDARY_MOUSE_BUTTON) ? BUTTON3 : 0)
		  | ((beButtons & B_TERTIARY_MOUSE_BUTTON) ? BUTTON2 : 0);
}
void
be_setfullscreen()
{
	if(isfullscreen!=fullscreen)
	{
	  isfullscreen=fullscreen;
	  if(fullscreen) {
		     if (Previous) Previous=NULL;
                     Previous = new BRect(gpWindow->Frame());
                     BScreen a_screen(gpWindow);
                     gpWindow->MoveTo(a_screen.Frame().left, a_screen.Frame().top);
                     gpWindow->ResizeTo(a_screen.Frame().Width(), a_screen.Frame().Height());
	  }
	  else
	  {
                        gpWindow->ResizeTo(Previous->Width(), Previous->Height());
                        gpWindow->MoveTo(Previous->left, Previous->top);
			Previous = NULL;
			delete Previous;
	  }
	}
}
// Read the mouse.
static void be_getmouse(int *x, int *y, int *buttons)
{
	BPoint mouseLocation;
	uint32 mouseButtons;
	{	BAutolock locker(gpWindow);
		if (direct == DIRECTSCREEN)
		mainView->GetMouse(&mouseLocation, &mouseButtons);
		else
		gpView->GetMouse(&mouseLocation, &mouseButtons);
	}
	*x = (int)mouseLocation.x;
	*y = (int)mouseLocation.y;
	*buttons = map_be_buttons(mouseButtons, modifiers());
}

// Get next event from keyboard, mouse, etc.
static void be_processevents(int wait, int *x, int *y, int *buttons, int *k)
{
	static int currX = 0, currY = 0;
	static int currButtons = 0;
	static int cursorMask = 0;

        if (!visible) gpWindow->Show(), visible=0;
	if (wait && direct == DIRECTSCREEN) {
	     snooze(16000);
	     wait=0;
        }
	if (wait || port_count(/*gpView->EventPort()*/mEventPort) > 0) {
		do {
			// Read events from our message port.
			int32 eventCode;
			XaoSEvent event;
			if (read_port(/*gpView->EventPort()*/ mEventPort, &eventCode, &event, sizeof(XaoSEvent))
				 < B_NO_ERROR) {
				 break;
			}
			
			// Handle event.
			switch (eventCode) {

			case XaoSEvent::KeyDown:
				switch (event.keyEvent.bytes[0]) {

				case B_LEFT_ARROW:
					cursorMask |= 1;
					ui_key(UIKEY_LEFT);
					break;
				
				case B_RIGHT_ARROW:
					cursorMask |= 2;
					ui_key(UIKEY_RIGHT);
					break;
				
				case B_UP_ARROW:
					cursorMask |= 4;
					ui_key(UIKEY_UP);
					break;
				
				case B_DOWN_ARROW:
					cursorMask |= 8;
					ui_key(UIKEY_DOWN);
					break;

				case B_PAGE_UP:
					cursorMask |= 4;
					ui_key(UIKEY_PGUP);
					break;
				
				case B_PAGE_DOWN:
					cursorMask |= 8;
					ui_key(UIKEY_PGDOWN);
					break;

				case B_HOME:
					ui_key(UIKEY_HOME);
					break;
				
				case B_END:
					ui_key(UIKEY_END);
					break;

				case B_BACKSPACE:
					ui_key(UIKEY_BACKSPACE);
					break;
				
				case B_TAB:
					ui_key(UIKEY_TAB);
					break;
				
				case B_ESCAPE:
					ui_key(UIKEY_ESC);
					break;
				
				default:
					if (event.keyEvent.numBytes == 1) {
						if (event.keyEvent.bytes[0] == B_F1_KEY) {
							event.keyEvent.bytes[0] = 'h';
						}
						if (ui_key(event.keyEvent.bytes[0]) == 2) {
							return;
						}
					}
					break;
				}
				break;

			case XaoSEvent::KeyUp:
				switch (event.keyEvent.bytes[0]) {

				case B_LEFT_ARROW:
					cursorMask &= ~1;
					break;
				
				case B_RIGHT_ARROW:
					cursorMask &= ~2;
					break;
				
				case B_UP_ARROW:
					cursorMask &= ~4;
					break;
				
				case B_DOWN_ARROW:
					cursorMask &= ~8;
					break;

				default:
					break;
				}
				break;

			case XaoSEvent::Mouse:
				currX = event.mouseEvent.x;
				currY = event.mouseEvent.y;
				currButtons = map_be_buttons(event.mouseEvent.buttons,
													   event.mouseEvent.modifiers);
				break;

			case XaoSEvent::Quit: 
                            if (!ignorequit) ui_quit(); 
                            else ignorequit=0;
                            break;
			case XaoSEvent::Menu:
			    ui_menuactivate(event.command, NULL);
			    break;
			case XaoSEvent::Dialog:
			    ui_menuactivate(event.dialogEvent.command, event.dialogEvent.param);
			    break;
			case XaoSEvent::Redraw:
			    be_screen_display();
			    break;