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comctl32: header: Draw the drag image and hot dividers while dragging an item.

This commit is contained in:
Mikołaj Zalewski 2006-05-25 23:53:24 +02:00 committed by Alexandre Julliard
parent 89b62b48c6
commit 7ab41112ae
1 changed files with 83 additions and 25 deletions
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108
dlls/comctl32/header.c
View File

@ -32,6 +32,7 @@
*/
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include "windef.h"
@ -77,7 +78,9 @@ typedef struct
HCURSOR hcurDivopen; /* handle to a cursor (used over dividers) <-||-> */
BOOL bCaptured; /* Is the mouse captured? */
BOOL bPressed; /* Is a header item pressed (down)? */
BOOL bDragging; /* Are we dragging an item? */
BOOL bTracking; /* Is in tracking mode? */
POINT ptLButtonDown; /* The point where the left button was pressed */
INT iMoveItem; /* index of tracked item. (Tracking mode) */
INT xTrackOffset; /* distance between the right side of the tracked item and the cursor */
INT xOldTrack; /* track offset (see above) after the last WM_MOUSEMOVE */
@ -512,6 +515,9 @@ HEADER_Refresh (HWND hwnd, HDC hdc)
/* get rect for the bar, adjusted for the border */
GetClientRect (hwnd, &rect);
if (infoPtr->bDragging)
ImageList_DragShowNolock(FALSE);
hFont = infoPtr->hFont ? infoPtr->hFont : GetStockObject (SYSTEM_FONT);
hOldFont = SelectObject (hdc, hFont);
@ -546,6 +552,9 @@ HEADER_Refresh (HWND hwnd, HDC hdc)
if (infoPtr->iHotDivider != -1)
HEADER_DrawHotDivider(hwnd, hdc);
if (infoPtr->bDragging)
ImageList_DragShowNolock(TRUE);
SelectObject (hdc, hOldFont);
}
@ -1556,6 +1565,16 @@ HEADER_GetFont (HWND hwnd)
}
static BOOL
HEADER_IsDragDistance(HEADER_INFO *infoPtr, POINT *pt)
{
/* Windows allows for a mouse movement before starting the drag. We use the
* SM_CXDOUBLECLICK/SM_CYDOUBLECLICK as that distance.
*/
return (abs(infoPtr->ptLButtonDown.x - pt->x)>GetSystemMetrics(SM_CXDOUBLECLK) ||
abs(infoPtr->ptLButtonDown.y - pt->y)>GetSystemMetrics(SM_CYDOUBLECLK));
}
static LRESULT
HEADER_LButtonDblClk (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
@ -1594,7 +1613,9 @@ HEADER_LButtonDown (HWND hwnd, WPARAM wParam, LPARAM lParam)
SetCapture (hwnd);
infoPtr->bCaptured = TRUE;
infoPtr->bPressed = TRUE;
infoPtr->bDragging = FALSE;
infoPtr->iMoveItem = nItem;
infoPtr->ptLButtonDown = pt;
infoPtr->items[nItem].bDown = TRUE;
@ -1644,7 +1665,37 @@ HEADER_LButtonUp (HWND hwnd, WPARAM wParam, LPARAM lParam)
HEADER_InternalHitTest (hwnd, &pt, &flags, &nItem);
if (infoPtr->bPressed) {
if ((nItem == infoPtr->iMoveItem) && (flags == HHT_ONHEADER)) {
if (infoPtr->bDragging)
{
ImageList_DragShowNolock(FALSE);
ImageList_EndDrag();
infoPtr->items[infoPtr->iMoveItem].bDown=FALSE;
/* FIXME: the new order field should be sent, not the old one */
if (!HEADER_SendHeaderNotifyT(hwnd, HDN_ENDDRAG, infoPtr->iMoveItem, HDI_ORDER, NULL))
{
HEADER_ITEM *lpItem;
INT newindex = HEADER_IndexToOrder(hwnd,nItem);
INT oldindex = HEADER_IndexToOrder(hwnd,infoPtr->iMoveItem);
TRACE("Exchanging [index:order] [%d:%d] [%d:%d]\n",
infoPtr->iMoveItem,oldindex,nItem,newindex);
lpItem= &infoPtr->items[nItem];
lpItem->iOrder=oldindex;
lpItem= &infoPtr->items[infoPtr->iMoveItem];
lpItem->iOrder = newindex;
infoPtr->order[oldindex] = nItem;
infoPtr->order[newindex] = infoPtr->iMoveItem;
infoPtr->bRectsValid = FALSE;
InvalidateRect(hwnd, NULL, FALSE);
}
else
InvalidateRect(hwnd, &infoPtr->items[infoPtr->iMoveItem].rect, FALSE);
}
else if (!(dwStyle&HDS_DRAGDROP) || !HEADER_IsDragDistance(infoPtr, &pt))
{
infoPtr->items[infoPtr->iMoveItem].bDown = FALSE;
hdc = GetDC (hwnd);
HEADER_RefreshItem (hwnd, hdc, infoPtr->iMoveItem);
@ -1652,27 +1703,6 @@ HEADER_LButtonUp (HWND hwnd, WPARAM wParam, LPARAM lParam)
HEADER_SendClickNotify (hwnd, HDN_ITEMCLICKA, infoPtr->iMoveItem);
}
else if (flags == HHT_ONHEADER)
{
HEADER_ITEM *lpItem;
INT newindex = HEADER_IndexToOrder(hwnd,nItem);
INT oldindex = HEADER_IndexToOrder(hwnd,infoPtr->iMoveItem);
TRACE("Exchanging [index:order] [%d:%d] [%d:%d]\n",
infoPtr->iMoveItem,oldindex,nItem,newindex);
lpItem= &infoPtr->items[nItem];
lpItem->iOrder=oldindex;
lpItem= &infoPtr->items[infoPtr->iMoveItem];
lpItem->iOrder = newindex;
infoPtr->order[oldindex] = nItem;
infoPtr->order[newindex] = infoPtr->iMoveItem;
infoPtr->bRectsValid = FALSE;
InvalidateRect(hwnd, NULL, FALSE);
/* FIXME: Should some WM_NOTIFY be sent */
}
TRACE("Released item %d!\n", infoPtr->iMoveItem);
infoPtr->bPressed = FALSE;
@ -1735,7 +1765,6 @@ HEADER_NotifyFormat (HWND hwnd, WPARAM wParam, LPARAM lParam)
return 0;
}
static LRESULT
HEADER_MouseLeave (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
@ -1779,7 +1808,36 @@ HEADER_MouseMove (HWND hwnd, WPARAM wParam, LPARAM lParam)
}
if (infoPtr->bCaptured) {
if (infoPtr->bPressed) {
/* check if we should drag the header */
if (infoPtr->bPressed && !infoPtr->bDragging && dwStyle&HDS_DRAGDROP
&& HEADER_IsDragDistance(infoPtr, &pt))
{
if (!HEADER_SendHeaderNotifyT(hwnd, HDN_BEGINDRAG, infoPtr->iMoveItem, 0, NULL))
{
HIMAGELIST hDragItem = (HIMAGELIST)HEADER_CreateDragImage(hwnd, infoPtr->iMoveItem);
if (hDragItem != NULL)
{
HEADER_ITEM *lpItem = &infoPtr->items[infoPtr->iMoveItem];
TRACE("Starting item drag\n");
ImageList_BeginDrag(hDragItem, 0, pt.x - lpItem->rect.left, 0);
ImageList_DragShowNolock(TRUE);
ImageList_Destroy(hDragItem);
infoPtr->bDragging = TRUE;
}
}
}
if (infoPtr->bDragging)
{
POINT drag;
drag.x = pt.x;
drag.y = 0;
ClientToScreen(hwnd, &drag);
ImageList_DragMove(drag.x, drag.y);
HEADER_SetHotDivider(hwnd, TRUE, lParam);
}
if (infoPtr->bPressed && !infoPtr->bDragging) {
BOOL oldState = infoPtr->items[infoPtr->iMoveItem].bDown;
if ((nItem == infoPtr->iMoveItem) && (flags == HHT_ONHEADER))
infoPtr->items[infoPtr->iMoveItem].bDown = TRUE;
@ -1836,7 +1894,7 @@ HEADER_MouseMove (HWND hwnd, WPARAM wParam, LPARAM lParam)
if (hotTrackEnabled) {
TRACKMOUSEEVENT tme;
if (oldHotItem != infoPtr->iHotItem) {
if (oldHotItem != infoPtr->iHotItem && !infoPtr->bDragging) {
hdc = GetDC (hwnd);
if (oldHotItem != -1) HEADER_RefreshItem (hwnd, hdc, oldHotItem);
if (infoPtr->iHotItem != -1) HEADER_RefreshItem (hwnd, hdc, infoPtr->iHotItem);