reactos/lib/3rdparty/cardlib/dropzone.cpp

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//
// CardLib - DropZone class
//
// Freeware
// Copyright J Brown 2001
//
#include <windows.h>
#include "cardlib.h"
#include "cardwindow.h"
#include "dropzone.h"
bool CardWindow::RegisterDropZone(int id, RECT *rect, pDropZoneProc proc)
{
if(nNumDropZones == MAXDROPZONES)
return false;
DropZone *dz = new DropZone(id, rect, proc);
dropzone[nNumDropZones++] = dz;
return false;
}
DropZone *CardWindow::GetDropZoneFromRect(RECT *rect)
{
for(int i = 0; i < nNumDropZones; i++)
{
RECT inter;
RECT zone;
//if any part of the drag rectangle falls within a drop zone,
//let that take priority over any other card stack.
dropzone[i]->GetZone(&zone);
if(IntersectRect(&inter, rect, &zone))
{
//see if the callback wants us to drop a card on
//a particular stack
return dropzone[i];
}
}
return 0;
}
bool CardWindow::DeleteDropZone(int id)
{
for(int i = 0; i < nNumDropZones; i++)
{
if(dropzone[i]->id == id)
{
DropZone *dz = dropzone[i];
//shift any after this one backwards
for(int j = i; j < nNumDropZones - 1; j++)
{
dropzone[j] = dropzone[j + 1];
}
delete dz;
nNumDropZones--;
return true;
}
}
return false;
}