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/*
** Bobi - The Ultimate Amiga Bob Manipulator
**
** Get.c - Bob aus einem Bild ausschneiden
**
** COPYRIGHT (C) 1989-1993 BY CHRISTIAN A. WEBER, ZUERICH, SWITZERLAND.
** ALL RIGHTS RESERVED. NO PART OF THIS SOFTWARE MAY BE COPIED, REPRODUCED,
** OR TRANSMITTED IN ANY FORM OR BY ANY MEANS, WITHOUT THE PRIOR WRITTEN
** PERMISSION OF THE AUTHOR. NO WARRANTY. USE AT YOUR OWN RISK.
*/
#include <proto/exec.h>
#include <proto/graphics.h>
#include <proto/intuition.h>
#include <graphics/rastport.h>
#include "Bobi.h"
#include "BobStructure.h"
extern struct MyBob *BobTable[];
extern struct Screen *mainscreen,*picturescreen;
extern struct Window *mainwindow,*toolwindow,*picturewindow;
extern WORD numbobs,actbobnum;
extern struct Gadget AutoSizeGadget;
extern char LabelGadgetSIBuff[];
static int x0,x1,y0,y1;
/****************************************************************************
** Der Benutzer kann auf dem Picture-Screen ein Bob ausschneiden,
** die Koordinaten werden in x0/y0/x1/y1 gespeichert
*/
static BOOL CutBob(BOOL multiflag)
{
struct IntuiMessage *msg;
BOOL looping=TRUE, okflag=FALSE;
x0 = -1; /* Startwerte, gegen MultiCutNoMove-Bug */
x1 = picturewindow->MouseX;
y1 = picturewindow->MouseY;
DrawCross(picturescreen,x1,y1);
ScreenToFront(picturescreen);
ActivateWindow(picturewindow);
ModifyIDCMP(picturewindow,MOUSEMOVE+MOUSEBUTTONS);
do
{
WaitPort(picturewindow->UserPort);
while(msg = (struct IntuiMessage *)GetMsg(picturewindow->UserPort))
{
if(msg->Class == MOUSEBUTTONS)
{
switch(msg->Code)
{
case SELECTDOWN:
x0 = x1;
y0 = y1;
DrawCross(picturescreen,x0,y0);
break;
case SELECTUP:
okflag=TRUE; /* hier kein break! */
default:
looping=FALSE;
break;
}
break;
}
else /* Muss MOUSEMOVE sein */
{
DrawCross(picturescreen,x1,y1);
x1 = MIN(msg->MouseX, picturescreen->Width-1);
y1 = MIN(msg->MouseY, picturescreen->Height-1);
DrawCross(picturescreen,x1,y1);
}
ReplyMsg((struct Message *)msg);
}
} while(looping);
DrawCross(picturescreen,x1,y1);
DrawCross(picturescreen,x0,y0);
ModifyIDCMP(picturewindow,0);
if(!multiflag) /* Falls nur 1 Bob zu cutten: mainscreen hervorbringen */
{
ScreenToFront(mainscreen);
ActivateWindow(toolwindow?toolwindow:mainwindow);
}
if(x0>x1) { WORD dummy=x0; x0=x1; x1=dummy; }
if(y0>y1) { WORD dummy=y0; y0=y1; y1=dummy; }
return okflag;
}
/****************************************************************************
** Bob an der gewünschten Stelle des Bildes ausschneiden
*/
BOOL GetBob(int x,int y,int w,int h)
{
BOOL success = FALSE;
if(picturescreen == NULL) return FALSE; /* Nix auszuschneiden! */
if(w<0)
{
x += w; w = -w;
}
if(h<0)
{
y += h; h = -h;
}
if(AutoSizeGadget.Flags & SELECTED)
{
int x1 = x+w-1, y1 = y+h-1;
while((x<x1) && (w>0))
{
int i;
for(i=y; i<y1; i++)
{
if(ReadPixel(&picturescreen->RastPort,x,i))
goto xlgot;
}
x++; w--;
}
xlgot:
while((y<y1) && (h>0))
{
int i;
for(i=x; i<x1; i++)
{
if(ReadPixel(&picturescreen->RastPort,i,y))
goto ylgot;
}
y++; h--;
}
ylgot:
while(w>0)
{
int i;
for(i=y; i<y1; i++)
{
if(ReadPixel(&picturescreen->RastPort,x1-1,i))
goto xhgot;
}
x1--; w--;
}
xhgot:
while(h>0)
{
int i;
for(i=x; i<x1; i++)
{
if(ReadPixel(&picturescreen->RastPort,i,y1-1))
goto yhgot;
}
y1--; h--;
}
yhgot: ;
} /* if(autosize) */
if((w>0) && (h>0))
{
struct BitMap *tmpmap;
if(tmpmap=MakeBitMap(w,h,picturescreen->BitMap.Depth))
{
struct MyBob *bob;
BltBitMap(&(picturescreen->BitMap),x,y,tmpmap,0,0,w,h,0xc0,0xff,0);
WaitBlit();
if(bob=BitMapToBob(BobTable[actbobnum],tmpmap,w))
{
if(numbobs<MAXNUMBOBS)
{
if(BobTable[actbobnum]) /* Falls Bob existiert */
{
FreeBob(BobTable[actbobnum]);
}
else /* Neues Bob an Tabellenende anhängen */
{
numbobs++;
sprintf(bob->SourceLabel,LabelGadgetSIBuff,actbobnum);
RefreshBobNum(); /* Prop-Gadget anpassen */
}
BobTable[actbobnum] = bob;
ShowBob(bob);
success = TRUE;
}
else ShowMonoReq2("Too many bobs!");
}
else ShowMonoReq2("Not enough memory for this bob");
MyFreeBitMap(tmpmap);
}
else ShowMonoReq2("Not enough memory for tmp BitMap");
}
return success;
}
/****************************************************************************
** Aus Bild ausschneiden und Bob generieren
*/
static BOOL GetOneBob(BOOL multiflag)
{
if(picturescreen)
{
if(CutBob(multiflag))
{
return GetBob(x0,y0,x1-x0+1,y1-y0+1);
}
else /* CutBob()==0: mit rechter Maustaste abgebrochen */
{
if(multiflag)
{
ScreenToFront(mainscreen);
ActivateWindow(toolwindow?toolwindow:mainwindow);
}
else ShowMonoReq2("Operation cancelled");
}
}
else ShowMonoReq2("No picture loaded, use 'Load IFF'");
return FALSE;
}
/****************************************************************************
** Ein Bob ausschneiden
*/
void GetBobFunc()
{
GetOneBob(FALSE);
}
/****************************************************************************
** Mehrere Bobs ausschneiden
*/
void GetMultiFunc()
{
while(GetOneBob(TRUE)) actbobnum++;
if(actbobnum>0) --actbobnum;
RefreshBobNum();
}
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