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comctl32: Move marquee logic into separate function.

This commit is contained in:
Owen Rudge 2009-11-02 10:57:52 -06:00 committed by Alexandre Julliard
parent 14991b78d8
commit 038e36aded
1 changed files with 127 additions and 83 deletions
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210
dlls/comctl32/listview.c
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@ -249,7 +249,9 @@ typedef struct tagLISTVIEW_INFO
BOOL bRButtonDown;
BOOL bDragging;
BOOL bMarqueeSelect; /* marquee selection/highlight underway */
RECT marqueeRect;
RECT marqueeRect; /* absolute coordinates of marquee selection */
RECT marqueeDrawRect; /* relative coordinates for drawing marquee */
POINT marqueeOrigin; /* absolute coordinates of marquee click origin */
POINT ptClickPos; /* point where the user clicked */
BOOL bNoItemMetrics; /* flags if item metrics are not yet computed */
INT nItemHeight;
@ -3593,6 +3595,103 @@ static LRESULT LISTVIEW_MouseHover(LISTVIEW_INFO *infoPtr, WORD fwKeys, INT x, I
return 0;
}
/***
* DESCRIPTION:
* Utility routine to draw and highlight items within a marquee selection rectangle.
*
* PARAMETER(S):
* [I] infoPtr : valid pointer to the listview structure
* [I] coords_orig : original co-ordinates of the cursor
* [I] coords_offs : offsetted coordinates of the cursor
* [I] offset : offset amount
* [I] scroll : Bitmask of which directions we should scroll, if at all
*
* RETURN:
* None.
*/
static void LISTVIEW_MarqueeHighlight(LISTVIEW_INFO *infoPtr, LPPOINT coords_orig, LPPOINT coords_offs, LPPOINT offset, INT scroll)
{
BOOL controlDown = FALSE;
LVITEMW item;
ITERATOR i;
RECT rect;
if (coords_offs->x > infoPtr->marqueeOrigin.x)
{
rect.left = infoPtr->marqueeOrigin.x;
rect.right = coords_offs->x;
}
else
{
rect.left = coords_offs->x;
rect.right = infoPtr->marqueeOrigin.x;
}
if (coords_offs->y > infoPtr->marqueeOrigin.y)
{
rect.top = infoPtr->marqueeOrigin.y;
rect.bottom = coords_offs->y;
}
else
{
rect.top = coords_offs->y;
rect.bottom = infoPtr->marqueeOrigin.y;
}
/* Cancel out the old marquee rectangle and draw the new one */
LISTVIEW_InvalidateRect(infoPtr, &infoPtr->marqueeDrawRect);
/* Invert the items in the old marquee rectangle */
iterator_frameditems_absolute(&i, infoPtr, &infoPtr->marqueeRect);
while (iterator_next(&i))
{
if (i.nItem > -1)
{
if (LISTVIEW_GetItemState(infoPtr, i.nItem, LVIS_SELECTED) == LVIS_SELECTED)
item.state = 0;
else
item.state = LVIS_SELECTED;
item.stateMask = LVIS_SELECTED;
LISTVIEW_SetItemState(infoPtr, i.nItem, &item);
}
}
iterator_destroy(&i);
CopyRect(&infoPtr->marqueeRect, &rect);
CopyRect(&infoPtr->marqueeDrawRect, &rect);
OffsetRect(&infoPtr->marqueeDrawRect, offset->x, offset->y);
/* Iterate over the items within our marquee rectangle */
iterator_frameditems_absolute(&i, infoPtr, &infoPtr->marqueeRect);
if (GetKeyState(VK_CONTROL) & 0x8000)
controlDown = TRUE;
while (iterator_next(&i))
{
if (i.nItem > -1)
{
/* If CTRL is pressed, invert. If not, always select the item. */
if ((controlDown) && (LISTVIEW_GetItemState(infoPtr, i.nItem, LVIS_SELECTED)))
item.state = 0;
else
item.state = LVIS_SELECTED;
item.stateMask = LVIS_SELECTED;
LISTVIEW_SetItemState(infoPtr, i.nItem, &item);
}
}
iterator_destroy(&i);
LISTVIEW_InvalidateRect(infoPtr, &rect);
}
/***
* DESCRIPTION:
* Called whenever WM_MOUSEMOVE is received.
@ -3620,93 +3719,27 @@ static LRESULT LISTVIEW_MouseMove(LISTVIEW_INFO *infoPtr, WORD fwKeys, INT x, IN
WORD wDragWidth = GetSystemMetrics(SM_CXDRAG);
WORD wDragHeight= GetSystemMetrics(SM_CYDRAG);
/* Ensure coordinates are within client bounds */
if (x < 0)
x = 0;
if (y < 0)
y = 0;
if (x > infoPtr->rcList.right)
x = infoPtr->rcList.right;
if (y > infoPtr->rcList.bottom)
y = infoPtr->rcList.bottom;
if (infoPtr->bMarqueeSelect)
{
LVITEMW item;
ITERATOR i;
POINT coords_orig;
POINT coords_offs;
POINT offset;
if (x > infoPtr->ptClickPos.x)
{
rect.left = infoPtr->ptClickPos.x;
rect.right = x;
}
else
{
rect.left = x;
rect.right = infoPtr->ptClickPos.x;
}
coords_orig.x = x;
coords_orig.y = y;
if (y > infoPtr->ptClickPos.y)
{
rect.top = infoPtr->ptClickPos.y;
rect.bottom = y;
}
else
{
rect.top = y;
rect.bottom = infoPtr->ptClickPos.y;
}
/* Get offset */
LISTVIEW_GetOrigin(infoPtr, &offset);
/* Cancel out the old marquee rectangle and draw the new one */
LISTVIEW_InvalidateRect(infoPtr, &infoPtr->marqueeRect);
/* Ensure coordinates are within client bounds */
coords_offs.x = max(min(x, infoPtr->rcList.right), 0);
coords_offs.y = max(min(y, infoPtr->rcList.bottom), 0);
/* Invert the items in the old marquee rectangle */
iterator_frameditems(&i, infoPtr, &infoPtr->marqueeRect);
/* Offset coordinates by the appropriate amount */
coords_offs.x -= offset.x;
coords_offs.y -= offset.y;
while (iterator_next(&i))
{
if (i.nItem > -1)
{
if (LISTVIEW_GetItemState(infoPtr, i.nItem, LVIS_SELECTED) == LVIS_SELECTED)
item.state = 0;
else
item.state = LVIS_SELECTED;
item.stateMask = LVIS_SELECTED;
LISTVIEW_SetItemState(infoPtr, i.nItem, &item);
}
}
iterator_destroy(&i);
CopyRect(&infoPtr->marqueeRect, &rect);
/* Iterate over the items within our marquee rectangle */
iterator_frameditems(&i, infoPtr, &rect);
while (iterator_next(&i))
{
if (i.nItem > -1)
{
/* If CTRL is pressed, invert. If not, always select the item. */
if ((fwKeys & MK_CONTROL) && (LISTVIEW_GetItemState(infoPtr, i.nItem, LVIS_SELECTED)))
item.state = 0;
else
item.state = LVIS_SELECTED;
item.stateMask = LVIS_SELECTED;
LISTVIEW_SetItemState(infoPtr, i.nItem, &item);
}
}
iterator_destroy(&i);
LISTVIEW_InvalidateRect(infoPtr, &rect);
LISTVIEW_MarqueeHighlight(infoPtr, &coords_orig, &coords_offs, &offset, 0);
return 0;
}
@ -3758,6 +3791,14 @@ static LRESULT LISTVIEW_MouseMove(LISTVIEW_INFO *infoPtr, WORD fwKeys, INT x, IN
If return value is non-zero, cancel. */
if (!(infoPtr->dwStyle & LVS_SINGLESEL) && (notify_hdr(infoPtr, LVN_MARQUEEBEGIN, &hdr) == 0))
{
/* Store the absolute coordinates of the click */
POINT offset;
LISTVIEW_GetOrigin(infoPtr, &offset);
infoPtr->marqueeOrigin.x = infoPtr->ptClickPos.x - offset.x;
infoPtr->marqueeOrigin.y = infoPtr->ptClickPos.y - offset.y;
/* Begin selection and capture mouse */
infoPtr->bMarqueeSelect = TRUE;
SetCapture(infoPtr->hwndSelf);
}
@ -4767,7 +4808,7 @@ enddraw:
/* Draw marquee rectangle if appropriate */
if (infoPtr->bMarqueeSelect)
DrawFocusRect(hdc, &infoPtr->marqueeRect);
DrawFocusRect(hdc, &infoPtr->marqueeDrawRect);
if (cdmode & CDRF_NOTIFYPOSTPAINT)
notify_postpaint(infoPtr, &nmlvcd);
@ -9621,14 +9662,17 @@ static LRESULT LISTVIEW_LButtonUp(LISTVIEW_INFO *infoPtr, WORD wKey, INT x, INT
/* Remove the marquee rectangle and release our mouse capture */
if (infoPtr->bMarqueeSelect)
{
LISTVIEW_InvalidateRect(infoPtr, &infoPtr->marqueeRect);
LISTVIEW_InvalidateRect(infoPtr, &infoPtr->marqueeDrawRect);
ReleaseCapture();
}
SetRect(&infoPtr->marqueeRect, 0, 0, 0, 0);
SetRect(&infoPtr->marqueeDrawRect, 0, 0, 0, 0);
infoPtr->bDragging = FALSE;
infoPtr->bMarqueeSelect = FALSE;
KillTimer(infoPtr->hwndSelf, (UINT_PTR) infoPtr);
return 0;
}