/*============================================================================*/
/*  Planes.c: By Kevin T. Seghetti					      */
/*  Change depth of screen						      */
/*============================================================================*/

#include "equates.h"
#include <functions.h>
#include <exec/types.h>
#include <intuition/intuition.h>

#include <graphics/gfx.h>
#include "iff/jiff.h"

/*----------------------------------------------------------------------------*/

extern USHORT areaPattern[];
extern FLAG UndoBuffer,PatternOn;
extern struct Screen *MPaintScreen;
extern struct NewScreen NewMPaintScreen;
extern struct Window *MPaintWindow,*ToolWindow,*PaletteWindow,*HistWindow,*CoordWindow;
extern struct RastPort UndoRastPort;
extern int MaxColor;
extern UWORD colortable[];
extern struct Window *InitWindow();
extern struct TmpRas myTmpRas;
extern struct RastPort *VRastPort;
extern SHORT PaintWidth;
extern UBYTE *TempPlane;

FLAG Tool,Palette,Coord;

/*============================================================================*/

ShutDownOldScreen()
{
    if(MPaintWindow)
     {
	ClearMenuStrip(MPaintWindow);
	CloseWindow(MPaintWindow);
     }
    DeleteAllPages();

    Tool = (!ToolWindow);
    Palette = (!PaletteWindow);
    Coord = (!CoordWindow);

    if(HistWindow)
	CloseHistWindow();

    if(CoordWindow)
	CloseCoordWindow();

    if(ToolWindow)
	CloseToolWindow();

    if(PaletteWindow)
	ClosePaletteWindow();

    if(UndoBuffer)
	myfree_planes( UndoRastPort.BitMap );

    if(MPaintScreen)
	CloseScreen(MPaintScreen);
}

/*============================================================================*/

SetUpNewScreen()
{
    MPaintScreen = OpenScreen(&NewMPaintScreen);
    if(!MPaintScreen)
	cleanup("Cannot open custom screen",5);

    InitWindow();

    VRastPort = MPaintWindow->RPort;
    VRastPort->TmpRas = &myTmpRas;

    if(PatternOn)
	SetAfPt(VRastPort,&areaPattern[0],1L);

    if(!TempPlane)
	InitTempPlane();

    InitDefaults();

    LoadRGB4(&MPaintScreen->ViewPort,colortable,(long)MaxColor);

    if(!Coord)
	OpenCoordWindow();

    if(!Tool)
	OpenToolWindow();

    if(!Palette)
	OpenPaletteWindow();

/*    InitUndoBuffer(); */
    UndoBuffer = FALSE;
}

/*============================================================================*/

ChangeDepth(Depth)
int Depth;
{
    if(PaintWidth > 320 && Depth == 5)
	return();

    ShutDownOldScreen();

    NewMPaintScreen.Depth = Depth;

    MaxColor = 1 << Depth;

    SetUpNewScreen();
}