huwcampbell.com
Reactos
1//
2// CardLib - DropZone class
3//
4// Freeware
5// Copyright J Brown 2001
6//
7
8#include "cardlib.h"
9
10bool CardWindow::RegisterDropZone(int id, RECT *rect, pDropZoneProc proc)
11{
12 if(nNumDropZones == MAXDROPZONES)
13 return false;
14
15 DropZone *dz = new DropZone(id, rect, proc);
16
17 dropzone[nNumDropZones++] = dz;
18
19 return false;
20}
21
22DropZone *CardWindow::GetDropZoneFromRect(RECT *rect)
23{
24 for(int i = 0; i < nNumDropZones; i++)
25 {
26 RECT inter;
27 RECT zone;
28
29 //if any part of the drag rectangle falls within a drop zone,
30 //let that take priority over any other card stack.
31 dropzone[i]->GetZone(&zone);
32
33 if(IntersectRect(&inter, rect, &zone))
34 {
35 //see if the callback wants us to drop a card on
36 //a particular stack
37 return dropzone[i];
38 }
39 }
40
41 return 0;
42}
43
44bool CardWindow::DeleteDropZone(int id)
45{
46 for(int i = 0; i < nNumDropZones; i++)
47 {
48 if(dropzone[i]->id == id)
49 {
50 DropZone *dz = dropzone[i];
51
52 //shift any after this one backwards
53 for(int j = i; j < nNumDropZones - 1; j++)
54 {
55 dropzone[j] = dropzone[j + 1];
56 }
57
58 delete dz;
59 nNumDropZones--;
60 return true;
61 }
62 }
63
64 return false;
65}
66