-
Notifications
You must be signed in to change notification settings - Fork 81
/
windrag.cc
264 lines (224 loc) · 6.45 KB
/
windrag.cc
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
264
/*
* This file implements some Win32 OLE2 specific Drag and Drop structures.
* Most of the code is a modification of the OLE2 SDK sample programs
* "drgdrps" and "drgdrpt". If you want to see them, don't search at
* Microsoft (I didn't find them there, seems they reorganised their servers)
* but instead at
* http://ftp.se.kde.org/pub/vendor/microsoft/Softlib/MSLFILES/
*/
#if defined(_WIN32) && defined(USE_EXULTSTUDIO)
# include "windrag.h"
# include "ignore_unused_variable_warning.h"
# include "u7drag.h"
# include <cstring>
# include <iostream>
static UINT CF_EXULT = RegisterClipboardFormat(U7_TARGET_DROPFILE_NAME_MIME);
// Just in case
# ifndef DECLSPEC_NOTHROW
# define DECLSPEC_NOTHROW
# endif
// IDropTarget implementation
Windnd::Windnd(
HWND hgwnd, Move_shape_handler_fun movefun,
Move_combo_handler_fun movecmbfun, Drop_shape_handler_fun shapefun,
Drop_chunk_handler_fun cfun, Drop_npc_handler_fun npcfun,
Drop_combo_handler_fun combfun)
: gamewin(hgwnd), move_shape_handler(movefun),
move_combo_handler(movecmbfun), shape_handler(shapefun),
chunk_handler(cfun), npc_handler(npcfun), combo_handler(combfun),
drag_id(-1) {
std::memset(&data, 0, sizeof(data));
m_cRef = 1;
}
STDMETHODIMP DECLSPEC_NOTHROW
Windnd::QueryInterface(REFIID iid, void** ppvObject) {
*ppvObject = nullptr;
if (IID_IUnknown == iid || IID_IDropTarget == iid) {
*ppvObject = this;
}
if (nullptr == *ppvObject) {
return E_NOINTERFACE;
}
static_cast<LPUNKNOWN>(*ppvObject)->AddRef();
return NOERROR;
}
STDMETHODIMP_(ULONG) DECLSPEC_NOTHROW Windnd::AddRef() {
return ++m_cRef;
}
STDMETHODIMP_(ULONG) DECLSPEC_NOTHROW Windnd::Release() {
if (0 != --m_cRef) {
return m_cRef;
}
delete this;
return 0;
}
STDMETHODIMP DECLSPEC_NOTHROW Windnd::DragEnter(
IDataObject* pDataObject, DWORD grfKeyState, POINTL pt,
DWORD* pdwEffect) {
ignore_unused_variable_warning(grfKeyState, pt);
if (!is_valid(pDataObject)) {
*pdwEffect = DROPEFFECT_NONE;
} else {
*pdwEffect = DROPEFFECT_COPY;
}
std::memset(&data, 0, sizeof(data));
FORMATETC fetc;
fetc.cfFormat = CF_EXULT;
fetc.ptd = nullptr;
fetc.dwAspect = DVASPECT_CONTENT;
fetc.lindex = -1;
fetc.tymed = TYMED_HGLOBAL;
STGMEDIUM med;
pDataObject->GetData(&fetc, &med);
const unsigned char* dragdata
= static_cast<unsigned char*>(GlobalLock(med.hGlobal));
if (Is_u7_shapeid(dragdata)) {
drag_id = U7_TARGET_SHAPEID;
Get_u7_shapeid(
dragdata, data.shape.file, data.shape.shape, data.shape.frame);
} else if (Is_u7_chunkid(dragdata)) {
drag_id = U7_TARGET_CHUNKID;
Get_u7_chunkid(dragdata, data.chunk.chunknum);
} else if (Is_u7_comboid(dragdata)) {
drag_id = U7_TARGET_COMBOID;
Get_u7_comboid(
dragdata, data.combo.xtiles, data.combo.ytiles,
data.combo.right, data.combo.below, data.combo.cnt,
data.combo.combo);
} else if (Is_u7_npcid(dragdata)) {
drag_id = U7_TARGET_NPCID;
Get_u7_npcid(dragdata, data.npc.npcnum);
}
GlobalUnlock(med.hGlobal);
ReleaseStgMedium(&med);
prevx = -1;
prevy = -1;
return S_OK;
}
STDMETHODIMP DECLSPEC_NOTHROW
Windnd::DragOver(DWORD grfKeyState, POINTL pt, DWORD* pdwEffect) {
ignore_unused_variable_warning(grfKeyState);
*pdwEffect = DROPEFFECT_COPY;
// Todo
POINT pnt = {pt.x, pt.y};
ScreenToClient(gamewin, &pnt);
switch (drag_id) {
case U7_TARGET_SHAPEID:
if (data.shape.file == U7_SHAPE_SHAPES) {
if (move_shape_handler) {
move_shape_handler(
data.shape.shape, data.shape.frame, pnt.x, pnt.y, prevx,
prevy, true);
}
}
break;
case U7_TARGET_COMBOID:
if (data.combo.cnt > 0) {
if (move_combo_handler) {
move_combo_handler(
data.combo.xtiles, data.combo.ytiles, data.combo.right,
data.combo.below, pnt.x, pnt.y, prevx, prevy, true);
}
}
break;
default:
break;
}
prevx = pnt.x;
prevy = pnt.y;
return S_OK;
}
STDMETHODIMP DECLSPEC_NOTHROW Windnd::DragLeave() {
if (move_shape_handler) {
move_shape_handler(-1, -1, 0, 0, prevx, prevy, true);
}
switch (drag_id) {
case U7_TARGET_SHAPEID:
break;
case U7_TARGET_COMBOID:
delete data.combo.combo;
break;
default:
break;
}
std::memset(&data, 0, sizeof(data));
drag_id = -1;
return S_OK;
}
STDMETHODIMP DECLSPEC_NOTHROW Windnd::Drop(
IDataObject* pDataObject, DWORD grfKeyState, POINTL pt,
DWORD* pdwEffect) {
ignore_unused_variable_warning(grfKeyState);
*pdwEffect = DROPEFFECT_COPY;
// retrieve the dragged data
FORMATETC fetc;
fetc.cfFormat = CF_EXULT;
fetc.ptd = nullptr;
fetc.dwAspect = DVASPECT_CONTENT;
fetc.lindex = -1;
fetc.tymed = TYMED_HGLOBAL;
STGMEDIUM med;
pDataObject->GetData(&fetc, &med);
const unsigned char* dragdata
= static_cast<unsigned char*>(GlobalLock(med.hGlobal));
POINT pnt = {pt.x, pt.y};
ScreenToClient(gamewin, &pnt);
if (Is_u7_shapeid(dragdata)) {
int file;
int shape;
int frame;
Get_u7_shapeid(dragdata, file, shape, frame);
std::cerr << "(Exult) Dropping SHAPE at " << pt.x << " " << pt.y
<< " for " << file << " " << shape << " " << frame
<< std::endl;
if (file == U7_SHAPE_SHAPES) {
if (shape_handler) {
(*shape_handler)(shape, frame, pnt.x, pnt.y);
}
}
} else if (Is_u7_npcid(dragdata)) {
int npcnum;
Get_u7_npcid(dragdata, npcnum);
std::cerr << "(Exult) Dropping NPC at " << pt.x << " " << pt.y
<< " for " << npcnum << std::endl;
if (npc_handler) {
(*npc_handler)(npcnum, pnt.x, pnt.y);
}
} else if (Is_u7_chunkid(dragdata)) {
int chunknum;
Get_u7_chunkid(dragdata, chunknum);
std::cerr << "(Exult) Dropping CHUNK at " << pt.x << " " << pt.y
<< " for " << chunknum << std::endl;
if (chunk_handler) {
(*chunk_handler)(chunknum, pnt.x, pnt.y);
}
} else if (Is_u7_comboid(dragdata)) {
int xtiles;
int ytiles;
int right;
int below;
int cnt;
U7_combo_data* combo;
Get_u7_comboid(dragdata, xtiles, ytiles, right, below, cnt, combo);
std::cerr << "(Exult) Dropping COMBO at " << pt.x << " " << pt.y
<< " for " << xtiles << " " << ytiles << " " << right << " "
<< below << " " << cnt << std::endl;
if (combo_handler) {
(*combo_handler)(cnt, combo, pnt.x, pnt.y);
}
delete combo;
}
GlobalUnlock(med.hGlobal);
ReleaseStgMedium(&med);
return S_OK;
}
bool Windnd::is_valid(IDataObject* pDataObject) {
FORMATETC fetc;
fetc.cfFormat = CF_EXULT;
fetc.ptd = nullptr;
fetc.dwAspect = DVASPECT_CONTENT;
fetc.lindex = -1;
fetc.tymed = TYMED_HGLOBAL;
return SUCCEEDED(pDataObject->QueryGetData(&fetc));
}
#endif