summaryrefslogtreecommitdiff
path: root/win/GrpTree.cpp
blob: 362fa85ed52e2726b207305c80b9e67b69853ac2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
// GrpTree.cpp : implementation file
//

#include "stdafx.h"
#include "leocad.h"
#include "GrpTree.h"
#include "group.h"
#include "piece.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CGroupEditTree

CGroupEditTree::CGroupEditTree()
{
  m_bDragging = FALSE;
}

CGroupEditTree::~CGroupEditTree()
{
}


BEGIN_MESSAGE_MAP(CGroupEditTree, CTreeCtrl)
	//{{AFX_MSG_MAP(CGroupEditTree)
	ON_NOTIFY_REFLECT(TVN_BEGINDRAG, OnBeginDrag)
	ON_WM_LBUTTONUP()
	ON_WM_MOUSEMOVE()
	ON_NOTIFY_REFLECT(TVN_BEGINLABELEDIT, OnBeginLabelEdit)
	ON_NOTIFY_REFLECT(TVN_ENDLABELEDIT, OnEndLabelEdit)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CGroupEditTree message handlers

void CGroupEditTree::AddChildren(HTREEITEM hParent, Group* pGroup)
{
	int i;
	TV_INSERTSTRUCT tvstruct;
	tvstruct.hParent = hParent;
	tvstruct.hInsertAfter = TVI_SORT;

	for (i = 0; i < opts->groupcount; i++)
		if (opts->groupsgroups[i] == pGroup)
		{
			tvstruct.item.lParam = i + 0xFFFF;
			tvstruct.item.iImage = 0;
			tvstruct.item.iSelectedImage = 1;
			tvstruct.item.pszText = opts->groups[i]->m_strName;
			tvstruct.item.mask = TVIF_PARAM | TVIF_TEXT | TVIF_IMAGE | TVIF_SELECTEDIMAGE;

			HTREEITEM hti = InsertItem(&tvstruct);
			AddChildren(hti, opts->groups[i]);
		}

	for (i = 0; i < opts->piececount; i++)
		if (opts->piecesgroups[i] == pGroup)
		{
			tvstruct.item.lParam = i;
			tvstruct.item.iImage = 2;
			tvstruct.item.iSelectedImage = 2;
			tvstruct.item.pszText = (char*)opts->pieces[i]->GetName();
			tvstruct.item.mask = TVIF_PARAM | TVIF_TEXT | TVIF_IMAGE | TVIF_SELECTEDIMAGE;
			InsertItem(&tvstruct);
		}
}

void CGroupEditTree::OnBeginLabelEdit(NMHDR* pNMHDR, LRESULT* pResult) 
{
	TV_DISPINFO* pTVDispInfo = (TV_DISPINFO*)pNMHDR;
	GetEditControl()->LimitText(80);
	*pResult = 0;
}

void CGroupEditTree::OnEndLabelEdit(NMHDR* pNMHDR, LRESULT* pResult) 
{
	TV_DISPINFO* pTVDispInfo = (TV_DISPINFO*)pNMHDR;

	// Set result to TRUE to accept the changes
	*pResult = TRUE;
}

void CGroupEditTree::OnBeginDrag(NMHDR* pNMHDR, LRESULT* pResult) 
{
	NM_TREEVIEW* pNMTreeView = (NM_TREEVIEW*)pNMHDR;
	*pResult = 0;

	SetFocus();	// Receive WM_KEYDOWN
	m_hitemDrag = pNMTreeView->itemNew.hItem;
	m_hitemDrop = NULL;

	SelectItem(m_hitemDrag);
	if (!IsDropSource(m_hitemDrag))
		return;

	// get the image list for dragging
	m_pDragImage = CreateDragImage(m_hitemDrag);

	// CreateDragImage() returns NULL if no image list
	// associated with the tree view control
	if (!m_pDragImage)
		return;

	m_bDragging = TRUE;
	m_pDragImage->BeginDrag(0, CPoint(-15,-15));

	m_dropCursor = LoadCursor(NULL, IDC_ARROW);
	m_noDropCursor = LoadCursor(NULL, IDC_NO);

	POINT pt = pNMTreeView->ptDrag;
	ClientToScreen(&pt);
	m_pDragImage->DragEnter(NULL, pt);
	SetCapture();
	
	*pResult = 0;
}

void CGroupEditTree::OnMouseMove(UINT nFlags, CPoint point) 
{
	HTREEITEM hitem;
	UINT flags;

	if (m_bDragging)
	{
		POINT pt = point;
		ClientToScreen(&pt);
		CImageList::DragMove(pt);
		if ((hitem = HitTest(point, &flags)) != NULL)
		{
			CImageList::DragShowNolock(FALSE);
			m_hitemDrop = GetDropTarget(hitem);
			SelectDropTarget(m_hitemDrop);
			CImageList::DragShowNolock(TRUE);
		}
		else
			m_hitemDrop = NULL;

		if (m_hitemDrop)
			SetCursor(m_dropCursor);
		else
			SetCursor(m_noDropCursor);
	}

	CTreeCtrl::OnMouseMove(nFlags, point);
}

void CGroupEditTree::OnLButtonUp(UINT nFlags, CPoint point) 
{
	CTreeCtrl::OnLButtonUp(nFlags, point);

	if (m_bDragging)
	{
		m_bDragging = FALSE;
		CImageList::DragLeave(this);
		CImageList::EndDrag();
		ReleaseCapture();

		delete m_pDragImage;

		// Remove drop target highlighting
		SelectDropTarget(NULL);

		if (m_hitemDrag == m_hitemDrop || m_hitemDrop == NULL)
			return;

		// If Drag item is an ancestor of Drop item then return
		HTREEITEM htiParent = m_hitemDrop;
		while ((htiParent = GetParentItem(htiParent)) != NULL)
			if (htiParent == m_hitemDrag)
				return;
		
		Expand(m_hitemDrop, TVE_EXPAND);

		DWORD source = GetItemData(m_hitemDrag);
		DWORD dest = GetItemData(m_hitemDrop) - 0xFFFF;
		TV_INSERTSTRUCT tvstruct;
		tvstruct.hParent = m_hitemDrop;
		tvstruct.hInsertAfter = TVI_SORT;
		tvstruct.item.lParam = source;
		tvstruct.item.mask = TVIF_PARAM | TVIF_TEXT | TVIF_IMAGE | TVIF_SELECTEDIMAGE;
		DeleteItem(m_hitemDrag);

		if (source < 0xFFFF)
		{
			opts->piecesgroups[source] = opts->groups[dest];

			tvstruct.item.iImage = 2;
			tvstruct.item.iSelectedImage = 2;
			tvstruct.item.pszText = (char*)opts->pieces[source]->GetName();
			InsertItem(&tvstruct);
		}
		else
		{
			opts->groupsgroups[source - 0xFFFF] = opts->groups[dest];

			tvstruct.item.iImage = 0;
			tvstruct.item.iSelectedImage = 1;
			tvstruct.item.pszText = opts->groups[source - 0xFFFF]->m_strName;

			HTREEITEM hti = InsertItem(&tvstruct);
			AddChildren(hti, opts->groups[source - 0xFFFF]);
		}

//		AddChildren(m_hitemDrop, opts->groups[dest]);
	}
}

BOOL CGroupEditTree::PreTranslateMessage(MSG* pMsg) 
{
	if (pMsg->message == WM_KEYDOWN)
	{
		if (GetEditControl() 
			&& (pMsg->wParam == VK_RETURN
			||  pMsg->wParam == VK_ESCAPE))
		{
			::TranslateMessage(pMsg);
			::DispatchMessage(pMsg);
			return TRUE;	// DO NOT process further
		}

		if (pMsg->wParam == VK_ESCAPE 
			&& m_bDragging)
		{
			m_bDragging = 0;
			CImageList::DragLeave(NULL);
			CImageList::EndDrag();
			ReleaseCapture();
			SelectDropTarget(NULL);
			delete m_pDragImage;
			return TRUE;	// DO NOT process further
		}
	}

	return CTreeCtrl::PreTranslateMessage(pMsg);
}

BOOL CGroupEditTree::IsDropSource(HTREEITEM /*hItem*/)
{
	return TRUE;
}

HTREEITEM CGroupEditTree::GetDropTarget(HTREEITEM hItem)
{
	if (GetItemData(hItem) < 0xFFFF)
		hItem = GetParentItem(hItem);

	// inhibit drop on the drop source or its parent
	if (hItem == m_hitemDrag || hItem == GetParentItem(m_hitemDrag))
		return NULL;

	HTREEITEM htiParent = hItem;
	while ((htiParent = GetParentItem(htiParent)) != NULL)
		if (htiParent == m_hitemDrag)
			return NULL;

	return hItem;
}