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More text drawing work. I might need to make a generic button metrics function for this instead.

This commit is contained in:
Pietro Gagliardi 2018-10-21 22:23:11 -04:00
parent 836e0dc2c7
commit d15dfa06a8
1 changed files with 47 additions and 6 deletions
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53
doc/misctests/winbuttonexplorertheme.cpp
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@ -120,6 +120,8 @@ void drawExplorerChevron(HTHEME theme, HDC dc, HWND rebar, WPARAM band, RECT *rc
&r, rcPaint); &r, rcPaint);
} }
#define hasNonsplitArrow(button) ((button) == leftButtons[0] || (button) == leftButtons[1] || (button) == leftButtons[2])
// TODO check errors // TODO check errors
LRESULT drawExplorerButton(NMCUSTOMDRAW *nm) LRESULT drawExplorerButton(NMCUSTOMDRAW *nm)
{ {
@ -128,6 +130,11 @@ LRESULT drawExplorerButton(NMCUSTOMDRAW *nm)
int part, state; int part, state;
LRESULT n; LRESULT n;
WCHAR *buf; WCHAR *buf;
int textState;
COLORREF textColor;
RECT textRect;
RECT arrowRect;
DTTOPTS dttopts;
if (nm->dwDrawStage != CDDS_PREPAINT) if (nm->dwDrawStage != CDDS_PREPAINT)
return CDRF_DODEFAULT; return CDRF_DODEFAULT;
@ -148,15 +155,49 @@ LRESULT drawExplorerButton(NMCUSTOMDRAW *nm)
DrawThemeBackground(theme, nm->hdc, DrawThemeBackground(theme, nm->hdc,
part, state, part, state,
&r, &(nm->rc)); &r, &(nm->rc));
// TODO these values are only for part==3
textState = 1;
if ((nm->uItemState & CDIS_DISABLED) != 0)
textState = 6;
// TODO name the constant for the property ID
GetThemeColor(theme,
3, textState,
3803, &textColor);
n = SendMessageW(button, WM_GETTEXTLENGTH, 0, 0); n = SendMessageW(button, WM_GETTEXTLENGTH, 0, 0);
buf = new WCHAR[n + 1]; buf = new WCHAR[n + 1];
GetWindowTextW(button, buf, n + 1); GetWindowTextW(button, buf, n + 1);
SetBkMode(nm->hdc, TRANSPARENT); textRect = r;
DrawThemeText(textstyleTheme, nm->hdc, if (hasNonsplitArrow(button)) {
SIZE arrowSize;
// TS_MIN returns 1x1 and TS_DRAW returns 0x0, so...
GetThemePartSize(theme, nm->hdc,
6, 0,
NULL, TS_TRUE, &arrowSize);
textRect.right -= arrowSize.cx;
arrowRect.left = textRect.right;
arrowRect.top = textRect.top + (textRect.bottom - textRect.top - arrowSize.cy) / 2;
arrowRect.right = arrowRect.left + arrowSize.cx;
arrowRect.bottom = arrowRect.top + arrowSize.cy;
// TODO this should be in DIPs
textRect.right -= 1;
}
ZeroMemory(&dttopts, sizeof (DTTOPTS));
dttopts.dwSize = sizeof (DTTOPTS);
dttopts.dwFlags = DTT_TEXTCOLOR;
dttopts.crText = textColor;
DrawThemeTextEx(textstyleTheme, nm->hdc,
4, 0, 4, 0,
buf, n, DT_CENTER | DT_VCENTER | DT_SINGLELINE, buf, n, DT_CENTER | DT_VCENTER | DT_SINGLELINE,
0, &r); &textRect, &dttopts);
delete[] buf; delete[] buf;
if (hasNonsplitArrow(button))
DrawThemeBackground(theme, nm->hdc,
6, 0,
&arrowRect, &(nm->rc));
return CDRF_SKIPDEFAULT; return CDRF_SKIPDEFAULT;
} }
@ -302,11 +343,9 @@ SIZE buttonSize(HWND button)
TMT_FONT, &lf); TMT_FONT, &lf);
contentRect.right += 2 * (abs(lf.lfHeight) / 6); contentRect.right += 2 * (abs(lf.lfHeight) / 6);
if (button == leftButtons[0] || button == leftButtons[1] || button == leftButtons[2]) { if (hasNonsplitArrow(button)) {
SIZE arrowSize; SIZE arrowSize;
// TODO this should be in DIPs
contentRect.right += 1;
// TS_MIN returns 1x1 and TS_DRAW returns 0x0, so... // TS_MIN returns 1x1 and TS_DRAW returns 0x0, so...
GetThemePartSize(theme, dc, GetThemePartSize(theme, dc,
6, 0, 6, 0,
@ -315,6 +354,8 @@ SIZE buttonSize(HWND button)
// TODO I don't think dui70.dll takes this into consideration... // TODO I don't think dui70.dll takes this into consideration...
if (contentRect.bottom < arrowSize.cy) if (contentRect.bottom < arrowSize.cy)
contentRect.bottom = arrowSize.cy; contentRect.bottom = arrowSize.cy;
// TODO this should be in DIPs
contentRect.right += 1;
} }
// TODO these should be DIPs // TODO these should be DIPs