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Item height/expand button width must be >= than imagelist size. 

Avoid a magic number, add FIXME for incorrect +/- drawing.
This commit is contained in:
Jon Griffiths 2004-09-28 02:35:48 +00:00 committed by Alexandre Julliard
parent cd516fd185
commit f479f10660
1 changed files with 70 additions and 28 deletions
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80
dlls/comctl32/treeview.c
View File

@ -1642,6 +1642,35 @@ TREEVIEW_GetImageList(TREEVIEW_INFO *infoPtr, WPARAM wParam)
}
}
#define TVHEIGHT_MIN 16
#define TVHEIGHT_FONT_ADJUST 3 /* 2 for focus border + 1 for margin some apps assume */
/* Compute the natural height for items. */
static UINT
TREEVIEW_NaturalHeight(TREEVIEW_INFO *infoPtr)
{
TEXTMETRICW tm;
HDC hdc = GetDC(0);
HFONT hOldFont = SelectObject(hdc, infoPtr->hFont);
UINT height;
/* Height is the maximum of:
* 16 (a hack because our fonts are tiny), and
* The text height + border & margin, and
* The size of the normal image list
*/
GetTextMetricsW(hdc, &tm);
SelectObject(hdc, hOldFont);
ReleaseDC(0, hdc);
height = TVHEIGHT_MIN;
if (height < tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST)
height = tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST;
if (height < infoPtr->normalImageHeight)
height = infoPtr->normalImageHeight;
return height;
}
static LRESULT
TREEVIEW_SetImageList(TREEVIEW_INFO *infoPtr, WPARAM wParam, HIMAGELIST himlNew)
{
@ -1688,6 +1717,25 @@ TREEVIEW_SetImageList(TREEVIEW_INFO *infoPtr, WPARAM wParam, HIMAGELIST himlNew)
if (oldWidth != infoPtr->normalImageWidth ||
oldHeight != infoPtr->normalImageHeight)
{
BOOL bRecalcVisable = FALSE;
if (oldHeight != infoPtr->normalImageHeight &&
!infoPtr->bHeightSet)
{
infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
bRecalcVisable = TRUE;
}
if (infoPtr->normalImageWidth > MINIMUM_INDENT &&
infoPtr->normalImageWidth != infoPtr->uIndent)
{
infoPtr->uIndent = infoPtr->normalImageWidth;
bRecalcVisable = TRUE;
}
if (bRecalcVisable)
TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
TREEVIEW_UpdateScrollBars(infoPtr);
}
@ -1697,24 +1745,6 @@ TREEVIEW_SetImageList(TREEVIEW_INFO *infoPtr, WPARAM wParam, HIMAGELIST himlNew)
return (LRESULT)himlOld;
}
/* Compute the natural height (based on the font size) for items. */
static UINT
TREEVIEW_NaturalHeight(TREEVIEW_INFO *infoPtr)
{
TEXTMETRICW tm;
HDC hdc = GetDC(0);
HFONT hOldFont = SelectObject(hdc, infoPtr->hFont);
GetTextMetricsW(hdc, &tm);
SelectObject(hdc, hOldFont);
ReleaseDC(0, hdc);
/* The 16 is a hack because our fonts are tiny. */
/* add 2 for the focus border and 1 more for margin some apps assume */
return max(16, tm.tmHeight + tm.tmExternalLeading + 3);
}
static LRESULT
TREEVIEW_SetItemHeight(TREEVIEW_INFO *infoPtr, INT newHeight)
{
@ -2289,6 +2319,18 @@ TREEVIEW_DrawItemLines(TREEVIEW_INFO *infoPtr, HDC hdc, TREEVIEW_ITEM *item)
HBRUSH hbr = CreateSolidBrush(infoPtr->clrBk);
HBRUSH hbrOld = SelectObject(hdc, hbr);
/* FIXME: Native actually draws:
*
* xxx
* X x
* xxx xxx xxxxxxx
* x x or x x
* xxx xxx xxxxxxx
* x x
* xxx
*
* This looks a lot better when the icon size is increased.
*/
Rectangle(hdc, centerx - rectsize - 1, centery - rectsize - 1,
centerx + rectsize + 2, centery + rectsize + 2);
@ -4667,7 +4709,7 @@ TREEVIEW_Create(HWND hwnd, const CREATESTRUCTW *lpcs)
infoPtr->treeWidth = 0;
infoPtr->treeHeight = 0;
infoPtr->uIndent = 19;
infoPtr->uIndent = MINIMUM_INDENT;
infoPtr->selectedItem = 0;
infoPtr->focusedItem = 0;
/* hotItem? */