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