ReactOS 0.4.15-dev-6056-gb29b268
draglist.c File Reference
#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winuser.h"
#include "winnls.h"
#include "commctrl.h"
#include "comctl32.h"
#include "wine/debug.h"
Include dependency graph for draglist.c:

Go to the source code of this file.

Classes

struct  _DRAGLISTDATA
 

Macros

#define DRAGLIST_SUBCLASSID   0
 
#define DRAGLIST_SCROLLPERIOD   200
 
#define DRAGLIST_TIMERID   666
 
#define DRAGICON_HOTSPOT_X   17
 
#define DRAGICON_HOTSPOT_Y   7
 
#define DRAGICON_HEIGHT   32
 

Typedefs

typedef struct _DRAGLISTDATA DRAGLISTDATA
 

Functions

 WINE_DEFAULT_DEBUG_CHANNEL (commctrl)
 
static LRESULT DragList_Notify (HWND hwndLB, UINT uNotification)
 
static void DragList_EndDrag (HWND hwnd, DRAGLISTDATA *data)
 
static LRESULT CALLBACK DragList_SubclassWindowProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam, UINT_PTR uIdSubclass, DWORD_PTR dwRefData)
 
BOOL WINAPI MakeDragList (HWND hwndLB)
 
VOID WINAPI DrawInsert (HWND hwndParent, HWND hwndLB, INT nItem)
 
INT WINAPI LBItemFromPt (HWND hwndLB, POINT pt, BOOL bAutoScroll)
 

Variables

UINT uDragListMessage = 0
 
static DWORD dwLastScrollTime = 0
 
static HICON hDragArrow = NULL
 

Macro Definition Documentation

◆ DRAGICON_HEIGHT

#define DRAGICON_HEIGHT   32

Definition at line 52 of file draglist.c.

◆ DRAGICON_HOTSPOT_X

#define DRAGICON_HOTSPOT_X   17

Definition at line 50 of file draglist.c.

◆ DRAGICON_HOTSPOT_Y

#define DRAGICON_HOTSPOT_Y   7

Definition at line 51 of file draglist.c.

◆ DRAGLIST_SCROLLPERIOD

#define DRAGLIST_SCROLLPERIOD   200

Definition at line 46 of file draglist.c.

◆ DRAGLIST_SUBCLASSID

#define DRAGLIST_SUBCLASSID   0

Definition at line 45 of file draglist.c.

◆ DRAGLIST_TIMERID

#define DRAGLIST_TIMERID   666

Definition at line 47 of file draglist.c.

Typedef Documentation

◆ DRAGLISTDATA

Function Documentation

◆ DragList_EndDrag()

static void DragList_EndDrag ( HWND  hwnd,
DRAGLISTDATA data 
)
static

Definition at line 94 of file draglist.c.

95{
98 /* clear any drag insert icon present */
99 InvalidateRect(GetParent(hwnd), &data->last_drag_icon_rect, TRUE);
100 /* clear data for next use */
101 memset(data, 0, sizeof(*data));
102}
#define TRUE
Definition: types.h:120
#define DRAGLIST_TIMERID
Definition: draglist.c:47
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
Definition: gl.h:1950
#define memset(x, y, z)
Definition: compat.h:39
_In_ LONG _In_ HWND hwnd
Definition: winddi.h:4023
BOOL WINAPI ReleaseCapture(void)
Definition: message.c:2890
HWND WINAPI GetParent(_In_ HWND)
BOOL WINAPI InvalidateRect(_In_opt_ HWND, _In_opt_ LPCRECT, _In_ BOOL)
BOOL WINAPI KillTimer(_In_opt_ HWND, _In_ UINT_PTR)

Referenced by DragList_SubclassWindowProc().

◆ DragList_Notify()

static LRESULT DragList_Notify ( HWND  hwndLB,
UINT  uNotification 
)
static

Definition at line 84 of file draglist.c.

85{
86 DRAGLISTINFO dli;
87 dli.hWnd = hwndLB;
88 dli.uNotification = uNotification;
90 return SendMessageW(GetParent(hwndLB), uDragListMessage, GetDlgCtrlID(hwndLB), (LPARAM)&dli);
91}
UINT uDragListMessage
Definition: draglist.c:73
UINT uNotification
Definition: commctrl.h:2092
LONG_PTR LPARAM
Definition: windef.h:208
BOOL WINAPI GetCursorPos(_Out_ LPPOINT)
Definition: cursoricon.c:2639
int WINAPI GetDlgCtrlID(_In_ HWND)
LRESULT WINAPI SendMessageW(_In_ HWND, _In_ UINT, _In_ WPARAM, _In_ LPARAM)

Referenced by DragList_SubclassWindowProc().

◆ DragList_SubclassWindowProc()

static LRESULT CALLBACK DragList_SubclassWindowProc ( HWND  hwnd,
UINT  uMsg,
WPARAM  wParam,
LPARAM  lParam,
UINT_PTR  uIdSubclass,
DWORD_PTR  dwRefData 
)
static

Definition at line 111 of file draglist.c.

112{
114 switch (uMsg)
115 {
116 case WM_LBUTTONDOWN:
117 SetFocus(hwnd);
119 if (data->dragging)
120 {
123 }
124 /* note that we don't absorb this message to let the list box
125 * do its thing (normally selecting an item) */
126 break;
127
128 case WM_KEYDOWN:
129 case WM_RBUTTONDOWN:
130 /* user cancelled drag by either right clicking or
131 * by pressing the escape key */
132 if ((data->dragging) &&
133 ((uMsg == WM_RBUTTONDOWN) || (wParam == VK_ESCAPE)))
134 {
135 /* clean up and absorb message */
138 return 0;
139 }
140 break;
141
142 case WM_MOUSEMOVE:
143 case WM_TIMER:
144 if (data->dragging)
145 {
147 /* optimisation so that we don't have to load the cursor
148 * all of the time whilst dragging */
149 if (data->last_dragging_response != cursor)
150 {
151 switch (cursor)
152 {
153 case DL_STOPCURSOR:
154 data->cursor = LoadCursorW(NULL, (LPCWSTR)IDC_NO);
155 SetCursor(data->cursor);
156 break;
157 case DL_COPYCURSOR:
159 SetCursor(data->cursor);
160 break;
161 case DL_MOVECURSOR:
163 SetCursor(data->cursor);
164 break;
165 }
166 data->last_dragging_response = cursor;
167 }
168 /* don't pass this message on to List Box */
169 return 0;
170 }
171 break;
172
173 case WM_LBUTTONUP:
174 if (data->dragging)
175 {
178 }
179 break;
180
181 case WM_GETDLGCODE:
182 /* tell dialog boxes that we want to receive WM_KEYDOWN events
183 * for keys like VK_ESCAPE */
184 if (data->dragging)
185 return DLGC_WANTALLKEYS;
186 break;
187 case WM_NCDESTROY:
189 Free(data);
190 break;
191 }
192 return DefSubclassProc(hwnd, uMsg, wParam, lParam);
193}
#define IDC_COPY
Definition: resource.h:17
WPARAM wParam
Definition: combotst.c:138
LPARAM lParam
Definition: combotst.c:139
HMODULE COMCTL32_hModule
Definition: commctrl.c:79
BOOL WINAPI RemoveWindowSubclass(HWND hWnd, SUBCLASSPROC pfnSubclass, UINT_PTR uID)
Definition: commctrl.c:1390
LRESULT WINAPI DefSubclassProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
Definition: commctrl.c:1496
#define NULL
Definition: types.h:112
static LRESULT CALLBACK DragList_SubclassWindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam, UINT_PTR uIdSubclass, DWORD_PTR dwRefData)
Definition: draglist.c:111
#define DRAGLIST_SUBCLASSID
Definition: draglist.c:45
static LRESULT DragList_Notify(HWND hwndLB, UINT uNotification)
Definition: draglist.c:84
#define DRAGLIST_SCROLLPERIOD
Definition: draglist.c:46
static void DragList_EndDrag(HWND hwnd, DRAGLISTDATA *data)
Definition: draglist.c:94
const char cursor[]
Definition: icontest.c:13
#define DL_BEGINDRAG
Definition: commctrl.h:2097
#define DL_MOVECURSOR
Definition: commctrl.h:2105
#define DL_CANCELDRAG
Definition: commctrl.h:2100
#define DL_COPYCURSOR
Definition: commctrl.h:2104
#define DL_DRAGGING
Definition: commctrl.h:2098
_In_ SUBCLASSPROC _In_ UINT_PTR _In_ DWORD_PTR dwRefData
Definition: commctrl.h:5058
#define DL_STOPCURSOR
Definition: commctrl.h:2103
#define DL_DROPPED
Definition: commctrl.h:2099
LONG_PTR LRESULT
Definition: windef.h:209
HWND WINAPI SetCapture(_In_ HWND hWnd)
#define IDC_NO
Definition: winuser.h:692
#define DLGC_WANTALLKEYS
Definition: winuser.h:2602
#define IDC_ARROW
Definition: winuser.h:682
HCURSOR WINAPI SetCursor(_In_opt_ HCURSOR)
#define WM_MOUSEMOVE
Definition: winuser.h:1765
#define WM_LBUTTONDOWN
Definition: winuser.h:1766
HCURSOR WINAPI LoadCursorW(_In_opt_ HINSTANCE, _In_ LPCWSTR)
Definition: cursoricon.c:2074
UINT_PTR WINAPI SetTimer(_In_opt_ HWND, _In_ UINT_PTR, _In_ UINT, _In_opt_ TIMERPROC)
#define WM_RBUTTONDOWN
Definition: winuser.h:1769
HWND WINAPI SetFocus(_In_opt_ HWND)
#define WM_TIMER
Definition: winuser.h:1732
#define WM_LBUTTONUP
Definition: winuser.h:1767
#define WM_NCDESTROY
Definition: winuser.h:1674
#define WM_KEYDOWN
Definition: winuser.h:1705
#define VK_ESCAPE
Definition: winuser.h:2204
#define WM_GETDLGCODE
Definition: winuser.h:1679
_In_opt_ PALLOCATE_FUNCTION _In_opt_ PFREE_FUNCTION Free
Definition: exfuncs.h:815
const WCHAR * LPCWSTR
Definition: xmlstorage.h:185

Referenced by DragList_SubclassWindowProc(), DrawInsert(), and MakeDragList().

◆ DrawInsert()

VOID WINAPI DrawInsert ( HWND  hwndParent,
HWND  hwndLB,
INT  nItem 
)

Definition at line 224 of file draglist.c.

225{
226 RECT rcItem, rcListBox, rcDragIcon;
227 HDC hdc;
229
230 TRACE("(%p %p %d)\n", hwndParent, hwndLB, nItem);
231
232 if (!hDragArrow)
234
235 if (LB_ERR == SendMessageW(hwndLB, LB_GETITEMRECT, nItem, (LPARAM)&rcItem))
236 return;
237
238 if (!GetWindowRect(hwndLB, &rcListBox))
239 return;
240
241 /* convert item rect to parent co-ordinates */
242 if (!MapWindowPoints(hwndLB, hwndParent, (LPPOINT)&rcItem, 2))
243 return;
244
245 /* convert list box rect to parent co-ordinates */
246 if (!MapWindowPoints(HWND_DESKTOP, hwndParent, (LPPOINT)&rcListBox, 2))
247 return;
248
249 rcDragIcon.left = rcListBox.left - DRAGICON_HOTSPOT_X;
250 rcDragIcon.top = rcItem.top - DRAGICON_HOTSPOT_Y;
251 rcDragIcon.right = rcListBox.left;
252 rcDragIcon.bottom = rcDragIcon.top + DRAGICON_HEIGHT;
253
255 return;
256
257 if (nItem < 0)
258 SetRectEmpty(&rcDragIcon);
259
260 /* prevent flicker by only redrawing when necessary */
261 if (!EqualRect(&rcDragIcon, &data->last_drag_icon_rect))
262 {
263 /* get rid of any previous inserts drawn */
264 RedrawWindow(hwndParent, &data->last_drag_icon_rect, NULL,
266
267 data->last_drag_icon_rect = rcDragIcon;
268
269 if (nItem >= 0)
270 {
272
273 DrawIcon(hdc, rcDragIcon.left, rcDragIcon.top, hDragArrow);
274
276 }
277 }
278}
#define IDI_DRAGARROW
Definition: comctl32.h:100
BOOL WINAPI GetWindowSubclass(HWND hWnd, SUBCLASSPROC pfnSubclass, UINT_PTR uID, DWORD_PTR *pdwRef)
Definition: commctrl.c:1348
static HWND hwndParent
Definition: cryptui.c:300
#define DRAGICON_HOTSPOT_Y
Definition: draglist.c:51
#define DRAGICON_HOTSPOT_X
Definition: draglist.c:50
static HICON hDragArrow
Definition: draglist.c:75
#define DRAGICON_HEIGHT
Definition: draglist.c:52
HDC hdc
Definition: main.c:9
static HDC
Definition: imagelist.c:92
#define TRACE(s)
Definition: solgame.cpp:4
LONG right
Definition: windef.h:308
LONG bottom
Definition: windef.h:309
LONG top
Definition: windef.h:307
LONG left
Definition: windef.h:306
uint32_t DWORD_PTR
Definition: typedefs.h:65
#define LB_ERR
Definition: winuser.h:2422
int WINAPI ReleaseDC(_In_opt_ HWND, _In_ HDC)
BOOL WINAPI RedrawWindow(_In_opt_ HWND, _In_opt_ LPCRECT, _In_opt_ HRGN, _In_ UINT)
BOOL WINAPI GetWindowRect(_In_ HWND, _Out_ LPRECT)
BOOL WINAPI DrawIcon(_In_ HDC, _In_ int, _In_ int, _In_ HICON)
Definition: cursoricon.c:1987
#define LB_GETITEMRECT
Definition: winuser.h:2033
#define RDW_UPDATENOW
Definition: winuser.h:1210
#define RDW_ERASE
Definition: winuser.h:1201
int WINAPI MapWindowPoints(_In_opt_ HWND hWndFrom, _In_opt_ HWND hWndTo, _Inout_updates_(cPoints) LPPOINT lpPoints, _In_ UINT cPoints)
#define HWND_DESKTOP
Definition: winuser.h:1199
HDC WINAPI GetDC(_In_opt_ HWND)
BOOL WINAPI SetRectEmpty(_Out_ LPRECT)
#define RDW_INTERNALPAINT
Definition: winuser.h:1203
BOOL WINAPI EqualRect(_In_ LPCRECT, _In_ LPCRECT)
HICON WINAPI LoadIconW(_In_opt_ HINSTANCE hInstance, _In_ LPCWSTR lpIconName)
Definition: cursoricon.c:2044
#define RDW_INVALIDATE
Definition: winuser.h:1204

Referenced by TOOLBAR_Cust_AvailDragListNotification(), and TOOLBAR_Cust_ToolbarDragListNotification().

◆ LBItemFromPt()

INT WINAPI LBItemFromPt ( HWND  hwndLB,
POINT  pt,
BOOL  bAutoScroll 
)

Definition at line 289 of file draglist.c.

290{
291 RECT rcClient;
292 INT nIndex;
293 DWORD dwScrollTime;
294
295 TRACE("(%p %d x %d %s)\n",
296 hwndLB, pt.x, pt.y, bAutoScroll ? "TRUE" : "FALSE");
297
298 ScreenToClient (hwndLB, &pt);
299 GetClientRect (hwndLB, &rcClient);
300 nIndex = (INT)SendMessageW (hwndLB, LB_GETTOPINDEX, 0, 0);
301
302 if (PtInRect (&rcClient, pt))
303 {
304 /* point is inside -- get the item index */
305 while (TRUE)
306 {
307 if (SendMessageW (hwndLB, LB_GETITEMRECT, nIndex, (LPARAM)&rcClient) == LB_ERR)
308 return -1;
309
310 if (PtInRect (&rcClient, pt))
311 return nIndex;
312
313 nIndex++;
314 }
315 }
316 else
317 {
318 /* point is outside */
319 if (!bAutoScroll)
320 return -1;
321
322 if ((pt.x > rcClient.right) || (pt.x < rcClient.left))
323 return -1;
324
325 if (pt.y < 0)
326 nIndex--;
327 else
328 nIndex++;
329
330 dwScrollTime = GetTickCount ();
331
332 if ((dwScrollTime - dwLastScrollTime) < DRAGLIST_SCROLLPERIOD)
333 return -1;
334
335 dwLastScrollTime = dwScrollTime;
336
337 SendMessageW (hwndLB, LB_SETTOPINDEX, nIndex, 0);
338 }
339
340 return -1;
341}
DWORD WINAPI GetTickCount(VOID)
Definition: time.c:455
static DWORD dwLastScrollTime
Definition: draglist.c:74
#define pt(x, y)
Definition: drawing.c:79
unsigned long DWORD
Definition: ntddk_ex.h:95
#define INT
Definition: polytest.cpp:20
int32_t INT
Definition: typedefs.h:58
#define LB_SETTOPINDEX
Definition: winuser.h:2060
#define LB_GETTOPINDEX
Definition: winuser.h:2041
BOOL WINAPI PtInRect(_In_ LPCRECT, _In_ POINT)
BOOL WINAPI GetClientRect(_In_ HWND, _Out_ LPRECT)
BOOL WINAPI ScreenToClient(_In_ HWND, _Inout_ LPPOINT)

Referenced by TOOLBAR_Cust_AvailDragListNotification(), and TOOLBAR_Cust_ToolbarDragListNotification().

◆ MakeDragList()

BOOL WINAPI MakeDragList ( HWND  hwndLB)

Definition at line 204 of file draglist.c.

205{
207
208 TRACE("(%p)\n", hwndLB);
209
210 if (!uDragListMessage)
212
214}
PVOID Alloc(IN DWORD dwFlags, IN SIZE_T dwBytes)
Definition: main.c:63
BOOL WINAPI SetWindowSubclass(HWND hWnd, SUBCLASSPROC pfnSubclass, UINT_PTR uIDSubclass, DWORD_PTR dwRef)
Definition: commctrl.c:1261
static const WCHAR DRAGLISTMSGSTRINGW[]
Definition: commctrl.h:27
UINT WINAPI RegisterWindowMessageW(_In_ LPCWSTR)

Referenced by TOOLBAR_CustomizeDialogProc().

◆ WINE_DEFAULT_DEBUG_CHANNEL()

WINE_DEFAULT_DEBUG_CHANNEL ( commctrl  )

Variable Documentation

◆ dwLastScrollTime

DWORD dwLastScrollTime = 0
static

Definition at line 74 of file draglist.c.

Referenced by LBItemFromPt().

◆ hDragArrow

HICON hDragArrow = NULL
static

Definition at line 75 of file draglist.c.

Referenced by DrawInsert().

◆ uDragListMessage

UINT uDragListMessage = 0

Definition at line 73 of file draglist.c.

Referenced by DragList_Notify(), MakeDragList(), and TOOLBAR_CustomizeDialogProc().