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Separate item metrics computation from positioning 

Add support for computing state icon metrics.
This commit is contained in:
Dimitrie O. Paun 2002-10-11 17:57:27 +00:00 committed by Alexandre Julliard
parent 65442cd763
commit f1f447931e
1 changed files with 142 additions and 44 deletions
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186
dlls/comctl32/listview.c
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@ -1378,11 +1378,13 @@ static BOOL LISTVIEW_GetItemListOrigin(LISTVIEW_INFO *infoPtr, INT nItem, LPPOIN
* *
* PARAMETER(S): * PARAMETER(S):
* [I] infoPtr : valid pointer to the listview structure * [I] infoPtr : valid pointer to the listview structure
* [I] nItem : item number * [I] lpLVItem : item to compute the measures for
* [O] lprcBox : ptr to Box rectangle * [O] lprcBox : ptr to Box rectangle
* The internal LVIR_BOX rectangle * The internal LVIR_BOX rectangle
* [O] lprcBounds : ptr to Bounds rectangle * [O] lprcBounds : ptr to Bounds rectangle
* Same as LVM_GETITEMRECT with LVIR_BOUNDS * Same as LVM_GETITEMRECT with LVIR_BOUNDS
* [0] lprcState : ptr to State icon rectangle
* The internal LVIR_STATE rectangle
* [O] lprcIcon : ptr to Icon rectangle * [O] lprcIcon : ptr to Icon rectangle
* Same as LVM_GETITEMRECT with LVIR_ICON * Same as LVM_GETITEMRECT with LVIR_ICON
* [O] lprcLabel : ptr to Label rectangle * [O] lprcLabel : ptr to Label rectangle
@ -1392,54 +1394,73 @@ static BOOL LISTVIEW_GetItemListOrigin(LISTVIEW_INFO *infoPtr, INT nItem, LPPOIN
* TRUE if computations OK * TRUE if computations OK
* FALSE otherwise * FALSE otherwise
*/ */
static BOOL LISTVIEW_GetItemMeasures(LISTVIEW_INFO *infoPtr, INT nItem, static BOOL LISTVIEW_GetItemMetrics(LISTVIEW_INFO *infoPtr, LVITEMW *lpLVItem,
LPRECT lprcBox, LPRECT lprcBounds, LPRECT lprcBox, LPRECT lprcBounds,
LPRECT lprcIcon, LPRECT lprcLabel) LPRECT lprcState, LPRECT lprcIcon, LPRECT lprcLabel)
{ {
UINT uView = infoPtr->dwStyle & LVS_TYPEMASK; UINT uView = infoPtr->dwStyle & LVS_TYPEMASK;
BOOL doIcon = FALSE, doLabel = FALSE, oversizedBox = FALSE; BOOL doState = FALSE, doIcon = FALSE, doLabel = FALSE, oversizedBox = FALSE;
WCHAR szDispText[DISP_TEXT_SIZE] = { '\0' }; RECT Box, State, Icon, Label;
RECT Box, Icon, Label;
POINT Position, Origin;
LVITEMW lvItem;
ERR("(lpLVItem=%s)\n", debuglvitem_t(lpLVItem, TRUE));
/* Be smart and try to figure out the minimum we have to do */ /* Be smart and try to figure out the minimum we have to do */
if (lprcBounds) if (lprcBounds)
{ {
if (uView == LVS_REPORT) doIcon = TRUE; if (uView == LVS_REPORT) doIcon = TRUE;
else doLabel = TRUE; else doLabel = TRUE;
} }
if (uView == LVS_ICON && infoPtr->bFocus && if (uView == LVS_ICON && (lprcBox || lprcBounds || lprcLabel))
!(infoPtr->dwStyle & LVS_OWNERDRAWFIXED) && {
LISTVIEW_GetItemState(infoPtr, nItem, LVIS_FOCUSED)) if (!(lpLVItem->mask & LVIF_STATE) ||
oversizedBox = doLabel = TRUE; !(lpLVItem->stateMask & LVIS_FOCUSED))
return FALSE;
if ((lpLVItem->state & LVIS_FOCUSED) &&
!(infoPtr->dwStyle & LVS_OWNERDRAWFIXED))
oversizedBox = doLabel = TRUE;
}
if (lprcLabel) doLabel = TRUE; if (lprcLabel) doLabel = TRUE;
if (doLabel || lprcIcon) doIcon = TRUE; if (doLabel || lprcIcon) doIcon = TRUE;
if (doIcon || lprcState) doState = TRUE;
/* get what we need from the item before hand, so we make
* only one request. This can speed up things, if data
* is stored on the app side */
if (doLabel || (doIcon && uView == LVS_REPORT))
{
lvItem.mask = 0;
if (doIcon) lvItem.mask |= LVIF_INDENT;
if (doLabel) lvItem.mask |= LVIF_TEXT;
lvItem.iItem = nItem;
lvItem.iSubItem = 0;
lvItem.pszText = szDispText;
lvItem.cchTextMax = DISP_TEXT_SIZE;
if (!LISTVIEW_GetItemW(infoPtr, &lvItem)) return FALSE;
}
/************************************************************/ /************************************************************/
/* compute the box rectangle (it should be cheap to do) */ /* compute the box rectangle (it should be cheap to do) */
/************************************************************/ /************************************************************/
if (!LISTVIEW_GetItemListOrigin(infoPtr, nItem, &Position)) return FALSE; Box.left = 0;
if (!LISTVIEW_GetOrigin(infoPtr, &Origin)) return FALSE; Box.top = 0;
Box.left = Position.x + Origin.x; Box.right = infoPtr->nItemWidth;
Box.top = Position.y + Origin.y; Box.bottom = infoPtr->nItemHeight;
Box.right = Box.left + infoPtr->nItemWidth;
Box.bottom = Box.top + infoPtr->nItemHeight; /************************************************************/
/* compute STATEICON bounding box */
/************************************************************/
if (doState)
{
if (uView == LVS_ICON)
{
State.left = Box.left - infoPtr->iconStateSize.cx + 10;
if (infoPtr->himlNormal)
State.left += (infoPtr->iconSpacing.cx - infoPtr->iconSize.cx) / 2 - ICON_LR_HALF;
State.top = Box.top + infoPtr->iconSize.cy - infoPtr->iconStateSize.cy + 4;
}
else
{
/* we need the ident in report mode, if we don't have it, we fail */
if (uView == LVS_REPORT && !(lpLVItem->mask & LVIF_INDENT)) return FALSE;
State.left = Box.left;
if (uView == LVS_REPORT) State.left += infoPtr->iconSize.cx * lpLVItem->iIndent;
State.top = Box.top;
}
State.right = State.left;
State.bottom = State.top;
if (infoPtr->himlState)
{
State.right += infoPtr->iconStateSize.cx;
State.bottom += infoPtr->iconStateSize.cy;
}
if (lprcState) *lprcState = State;
TRACE(" - state=%s\n", debugrect(&State));
}
/************************************************************/ /************************************************************/
/* compute ICON bounding box (ala LVM_GETITEMRECT) */ /* compute ICON bounding box (ala LVM_GETITEMRECT) */
@ -1462,17 +1483,15 @@ static BOOL LISTVIEW_GetItemMeasures(LISTVIEW_INFO *infoPtr, INT nItem,
} }
else /* LVS_SMALLICON, LVS_LIST or LVS_REPORT */ else /* LVS_SMALLICON, LVS_LIST or LVS_REPORT */
{ {
/* do indent */ Icon.left = State.right;
Icon.left = Box.left; if (infoPtr->himlState) Icon.left += IMAGE_PADDING;
if (uView == LVS_REPORT) Icon.left += infoPtr->iconSize.cx * lvItem.iIndent;
if (infoPtr->himlState) Icon.left += infoPtr->iconStateSize.cx;
Icon.top = Box.top; Icon.top = Box.top;
Icon.right = Icon.left; Icon.right = Icon.left;
if (infoPtr->himlSmall) Icon.right += infoPtr->iconSize.cx; if (infoPtr->himlSmall) Icon.right += infoPtr->iconSize.cx;
Icon.bottom = Icon.top + infoPtr->nItemHeight; Icon.bottom = Icon.top + infoPtr->nItemHeight;
} }
if(lprcIcon) *lprcIcon = Icon; if(lprcIcon) *lprcIcon = Icon;
TRACE("hwnd=%x, item=%d, icon=%s\n", infoPtr->hwndSelf, nItem, debugrect(&Icon)); TRACE(" - icon=%s\n", debugrect(&Icon));
} }
/************************************************************/ /************************************************************/
@ -1481,13 +1500,16 @@ static BOOL LISTVIEW_GetItemMeasures(LISTVIEW_INFO *infoPtr, INT nItem,
if (doLabel) if (doLabel)
{ {
SIZE labelSize = { 0, 0 }; SIZE labelSize = { 0, 0 };
/* we need the text in non owner draw mode */
if (!(infoPtr->dwStyle & LVS_OWNERDRAWFIXED) && !(lpLVItem->mask & LVIF_TEXT)) return FALSE;
if (infoPtr->dwStyle & LVS_OWNERDRAWFIXED) if (infoPtr->dwStyle & LVS_OWNERDRAWFIXED)
{ {
labelSize.cx = infoPtr->nItemWidth; labelSize.cx = infoPtr->nItemWidth;
labelSize.cy = infoPtr->nItemHeight; labelSize.cy = infoPtr->nItemHeight;
} }
else if (is_textT(lvItem.pszText, TRUE)) else if (is_textT(lpLVItem->pszText, TRUE))
{ {
HFONT hFont = infoPtr->hFont ? infoPtr->hFont : infoPtr->hDefaultFont; HFONT hFont = infoPtr->hFont ? infoPtr->hFont : infoPtr->hDefaultFont;
HDC hdc = GetDC(infoPtr->hwndSelf); HDC hdc = GetDC(infoPtr->hwndSelf);
@ -1508,7 +1530,7 @@ static BOOL LISTVIEW_GetItemMeasures(LISTVIEW_INFO *infoPtr, INT nItem,
else else
uFormat = LV_SL_DT_FLAGS; uFormat = LV_SL_DT_FLAGS;
DrawTextW (hdc, lvItem.pszText, -1, &rcText, uFormat | DT_CALCRECT); DrawTextW (hdc, lpLVItem->pszText, -1, &rcText, uFormat | DT_CALCRECT);
labelSize.cx = min(rcText.right - rcText.left + TRAILING_PADDING, infoPtr->nItemWidth); labelSize.cx = min(rcText.right - rcText.left + TRAILING_PADDING, infoPtr->nItemWidth);
labelSize.cy = rcText.bottom - rcText.top; labelSize.cy = rcText.bottom - rcText.top;
@ -1540,15 +1562,15 @@ static BOOL LISTVIEW_GetItemMeasures(LISTVIEW_INFO *infoPtr, INT nItem,
else /* LVS_SMALLICON, LVS_LIST or LVS_REPORT */ else /* LVS_SMALLICON, LVS_LIST or LVS_REPORT */
{ {
Label.left = Icon.right; Label.left = Icon.right;
if (infoPtr->himlSmall) Label.left += IMAGE_PADDING;
Label.top = Box.top; Label.top = Box.top;
Label.right = Label.left + labelSize.cx; Label.right = Label.left + labelSize.cx;
if (infoPtr->himlSmall) Label.right += IMAGE_PADDING;
if (Label.right > Box.right) Label.right = Box.right; if (Label.right > Box.right) Label.right = Box.right;
Label.bottom = Label.top + infoPtr->nItemHeight; Label.bottom = Label.top + infoPtr->nItemHeight;
} }
if (lprcLabel) *lprcLabel = Label; if (lprcLabel) *lprcLabel = Label;
TRACE("hwnd=%x, item=%d, label=%s\n", infoPtr->hwndSelf, nItem, debugrect(&Label)); TRACE(" - label=%s\n", debugrect(&Label));
} }
/***********************************************************/ /***********************************************************/
@ -1566,12 +1588,87 @@ static BOOL LISTVIEW_GetItemMeasures(LISTVIEW_INFO *infoPtr, INT nItem,
} }
else else
UnionRect(lprcBounds, &Icon, &Label); UnionRect(lprcBounds, &Icon, &Label);
TRACE("hwnd=%x, item=%d, bounds=%s\n", infoPtr->hwndSelf, nItem, debugrect(lprcBounds)); TRACE(" - bounds=%s\n", debugrect(lprcBounds));
} }
if (oversizedBox) UnionRect(lprcBox, &Box, &Label); if (oversizedBox) UnionRect(lprcBox, &Box, &Label);
else if (lprcBox) *lprcBox = Box; else if (lprcBox) *lprcBox = Box;
TRACE("hwnd=%x, item=%d, box=%s\n", infoPtr->hwndSelf, nItem, debugrect(&Box)); TRACE(" - box=%s\n", debugrect(&Box));
return TRUE;
}
/***
* DESCRIPTION: [INTERNAL]
*
* PARAMETER(S):
* [I] infoPtr : valid pointer to the listview structure
* [I] nItem : item number
* [O] lprcBox : ptr to Box rectangle
* The internal LVIR_BOX rectangle
* [O] lprcBounds : ptr to Bounds rectangle
* Same as LVM_GETITEMRECT with LVIR_BOUNDS
* [O] lprcIcon : ptr to Icon rectangle
* Same as LVM_GETITEMRECT with LVIR_ICON
* [O] lprcLabel : ptr to Label rectangle
* Same as LVM_GETITEMRECT with LVIR_LABEL
*
* RETURN:
* TRUE if computations OK
* FALSE otherwise
*/
static BOOL LISTVIEW_GetItemMeasures(LISTVIEW_INFO *infoPtr, INT nItem,
LPRECT lprcBox, LPRECT lprcBounds,
LPRECT lprcIcon, LPRECT lprcLabel)
{
UINT uView = infoPtr->dwStyle & LVS_TYPEMASK;
WCHAR szDispText[DISP_TEXT_SIZE] = { '\0' };
BOOL doIcon = FALSE, doLabel = FALSE, oversizedBox = FALSE;
POINT Position, Origin;
LVITEMW lvItem;
if (!LISTVIEW_GetItemListOrigin(infoPtr, nItem, &Position)) return FALSE;
if (!LISTVIEW_GetOrigin(infoPtr, &Origin)) return FALSE;
/* Be smart and try to figure out the minimum we have to do */
if (lprcBounds)
{
if (uView == LVS_REPORT) doIcon = TRUE;
else doLabel = TRUE;
}
if (uView == LVS_ICON && (lprcBox || lprcBounds || lprcLabel) &&
infoPtr->bFocus && !(infoPtr->dwStyle & LVS_OWNERDRAWFIXED) &&
LISTVIEW_GetItemState(infoPtr, nItem, LVIS_FOCUSED))
oversizedBox = doLabel = TRUE;
if (lprcLabel) doLabel = TRUE;
if (doLabel || lprcIcon) doIcon = TRUE;
/* get what we need from the item before hand, so we make
* only one request. This can speed up things, if data
* is stored on the app side */
lvItem.mask = 0;
if (doIcon && uView == LVS_REPORT) lvItem.mask |= LVIF_INDENT;
if (doLabel) lvItem.mask |= LVIF_TEXT;
lvItem.iItem = nItem;
lvItem.iSubItem = 0;
lvItem.pszText = szDispText;
lvItem.cchTextMax = DISP_TEXT_SIZE;
if (lvItem.mask && !LISTVIEW_GetItemW(infoPtr, &lvItem)) return FALSE;
if (uView == LVS_ICON && (lprcBox || lprcBounds || lprcLabel))
{
lvItem.mask |= LVIF_STATE;
lvItem.stateMask = LVIS_FOCUSED;
lvItem.state = (oversizedBox ? LVIS_FOCUSED : 0);
}
if (!LISTVIEW_GetItemMetrics(infoPtr, &lvItem, lprcBox, lprcBounds, 0, lprcIcon, lprcLabel)) return FALSE;
Position.x += Origin.x;
Position.y += Origin.y;
if (lprcBox) OffsetRect(lprcBox, Position.x, Position.y);
if (lprcBounds) OffsetRect(lprcBounds, Position.x, Position.y);
if (lprcIcon) OffsetRect(lprcIcon, Position.x, Position.y);
if (lprcLabel) OffsetRect(lprcLabel, Position.x, Position.y);
return TRUE; return TRUE;
} }
@ -2131,6 +2228,7 @@ static BOOL remove_selection_range(LISTVIEW_INFO *infoPtr, INT lower, INT upper,
return TRUE; return TRUE;
} }
/*** /***
* Helper function for LISTVIEW_AddSelectionRange, and LISTVIEW_SetItem. * Helper function for LISTVIEW_AddSelectionRange, and LISTVIEW_SetItem.
*/ */