void wxMetafileDCImpl::DoGetTextExtent(const wxString& string,
wxCoord *x, wxCoord *y,
wxCoord *descent, wxCoord *externalLeading,
const wxFont *theFont) const
{
const wxFont *fontToUse = theFont;
if (!fontToUse)
fontToUse = &m_font;
ScreenHDC dc;
SelectInHDC selFont(dc, GetHfontOf(*fontToUse));
SIZE sizeRect;
TEXTMETRIC tm;
::GetTextExtentPoint32(dc, WXSTRINGCAST string, wxStrlen(WXSTRINGCAST string), &sizeRect);
::GetTextMetrics(dc, &tm);
if ( x )
*x = sizeRect.cx;
if ( y )
*y = sizeRect.cy;
if ( descent )
*descent = tm.tmDescent;
if ( externalLeading )
*externalLeading = tm.tmExternalLeading;
}
void drawTextWithSpacing(GraphicsContext* graphicsContext, const SimpleFontData* font, const wxColour& color, const GlyphBuffer& glyphBuffer, int from, int numGlyphs, const FloatPoint& point)
{
#if USE(WXGC)
wxGCDC* dc = static_cast<wxGCDC*>(graphicsContext->platformContext());
#else
wxDC* dc = graphicsContext->platformContext();
#endif
// get the native HDC handle to draw using native APIs
HDC hdc = 0;
#if USE(WXGC)
wxGraphicsContext* gc = dc->GetGraphicsContext();
Gdiplus::Graphics* g;
if (gc) {
g = (Gdiplus::Graphics*)gc->GetNativeContext();
hdc = g->GetHDC();
}
#else
hdc = static_cast<HDC>(dc->GetHDC());
#endif
// ExtTextOut wants the offsets as an array of ints, so extract them
// from the glyph buffer
const GlyphBufferGlyph* glyphs = glyphBuffer.glyphs(from);
const GlyphBufferAdvance* advances = glyphBuffer.advances(from);
float y = point.y() - font->ascent();
float x = point.x();
int* spacing = new int[numGlyphs - from];
for (unsigned i = 0; i < numGlyphs; ++i)
spacing[i] = advances[i].width();
wxFont* wxfont = font->getWxFont();
if (wxfont && wxfont->IsOk())
::SelectObject(hdc, GetHfontOf(*wxfont));
if (color.Ok())
::SetTextColor(hdc, color.GetPixel());
// do not draw background behind characters
::SetBkMode(hdc, TRANSPARENT);
// draw text with optional character widths array
wxString string = wxString((wxChar*)(&glyphs[from]), numGlyphs);
::ExtTextOut(hdc, x, y, 0, NULL, string.c_str(), string.length(), spacing);
::SetBkMode(hdc, TRANSPARENT);
#if USE(WXGC)
g->ReleaseHDC(hdc);
#endif
delete [] spacing;
}
void wxListBox::SetHorizontalExtent(const wxString& s)
{
// in any case, our best size could have changed
InvalidateBestSize();
// the rest is only necessary if we want a horizontal scrollbar
if ( !HasFlag(wxHSCROLL) )
return;
WindowHDC dc(GetHwnd());
SelectInHDC selFont(dc, GetHfontOf(GetFont()));
TEXTMETRIC lpTextMetric;
::GetTextMetrics(dc, &lpTextMetric);
int largestExtent = 0;
SIZE extentXY;
if ( s.empty() )
{
// set extent to the max length of all strings
for ( unsigned int i = 0; i < m_noItems; i++ )
{
const wxString str = GetString(i);
::GetTextExtentPoint32(dc, str.c_str(), str.length(), &extentXY);
int extentX = (int)(extentXY.cx + lpTextMetric.tmAveCharWidth);
if ( extentX > largestExtent )
largestExtent = extentX;
}
}
else // just increase the extent to the length of this string
{
int existingExtent = (int)SendMessage(GetHwnd(),
LB_GETHORIZONTALEXTENT, 0, 0L);
::GetTextExtentPoint32(dc, s.c_str(), s.length(), &extentXY);
int extentX = (int)(extentXY.cx + lpTextMetric.tmAveCharWidth);
if ( extentX > existingExtent )
largestExtent = extentX;
}
if ( largestExtent )
SendMessage(GetHwnd(), LB_SETHORIZONTALEXTENT, LOWORD(largestExtent), 0L);
//else: it shouldn't change
}
void FastDC::SetFontStyles(int fontStyles, std::map<int,wxFont>& fontMap) {
const int fontStyle = (fontStyles & wxFONTFLAG_ITALIC) ? wxFONTSTYLE_ITALIC : wxFONTSTYLE_NORMAL;
const int fontWeight = (fontStyles & wxFONTFLAG_BOLD) ? wxFONTWEIGHT_BOLD : wxFONTWEIGHT_NORMAL;
const bool fontUnderline = (fontStyles & wxFONTFLAG_UNDERLINED) ? true : false;
// Check if we need to change font style
// (changing the font can be expensive, so we want to avoid it if possible)
const bool styleChanged = (m_font.GetStyle() != fontStyle);
const bool widthChanged = (m_font.GetWeight() != fontWeight);
const bool underlineChanged = (m_font.GetUnderlined() != fontUnderline);
if (!styleChanged && !widthChanged && !underlineChanged) return;
// Check if we have font in cache
std::map<int,wxFont>::const_iterator p = fontMap.find(fontStyles);
if (p == fontMap.end()) {
m_font.SetStyle(fontStyle);
m_font.SetWeight(fontWeight);
m_font.SetUnderlined(fontUnderline);
fontMap[fontStyles] = m_font;
}
else m_font = p->second;
/*m_font.SetStyle(fontStyle);
m_font.SetWeight(fontWeight);
m_font.SetUnderlined(fontUnderline);*/
#ifdef __WXMSW__
HGDIOBJ hfont = ::SelectObject(GetHdc(), GetHfontOf(m_font));
if ( hfont == HGDI_ERROR )
{
wxLogLastError(_T("SelectObject(font)"));
}
else // selected ok
{
if ( !m_oldFont )
m_oldFont = (WXHPEN)hfont;
}
#else
SetFont(m_font);
#endif
}
void wxTextMeasure::BeginMeasuring()
{
if ( m_dc )
{
m_hdc = m_dc->GetHDC();
// Non-native wxDC subclasses should override their DoGetTextExtent()
// and other methods.
wxASSERT_MSG( m_hdc, wxS("Must not be used with non-native wxDCs") );
}
else if ( m_win )
{
m_hdc = ::GetDC(GetHwndOf(m_win));
}
// We need to set the font if it's explicitly specified, of course, but
// also if we're associated with a window because the window HDC created
// above has the default font selected into it and not the font of the
// window.
if ( m_font || m_win )
m_hfontOld = (HFONT)::SelectObject(m_hdc, GetHfontOf(GetFont()));
}
// draw the item
bool wxOwnerDrawn::OnDrawItem(wxDC& dc, const wxRect& rc,
wxODAction, wxODStatus stat)
{
// we do nothing if item isn't ownerdrawn
if ( !IsOwnerDrawn() )
return true;
wxMSWDCImpl *impl = (wxMSWDCImpl*) dc.GetImpl();
HDC hdc = GetHdcOf(*impl);
RECT rect;
wxCopyRectToRECT(rc, rect);
{
// set the font and colors
wxFont font;
GetFontToUse(font);
wxColour colText, colBack;
GetColourToUse(stat, colText, colBack);
SelectInHDC selFont(hdc, GetHfontOf(font));
wxMSWImpl::wxTextColoursChanger textCol(hdc, colText, colBack);
wxMSWImpl::wxBkModeChanger bkMode(hdc, wxBRUSHSTYLE_TRANSPARENT);
AutoHBRUSH hbr(wxColourToPalRGB(colBack));
SelectInHDC selBrush(hdc, hbr);
::FillRect(hdc, &rect, hbr);
// using native API because it recognizes '&'
wxString text = GetName();
SIZE sizeRect;
::GetTextExtentPoint32(hdc, text.c_str(), text.length(), &sizeRect);
int flags = DST_PREFIXTEXT;
if ( (stat & wxODDisabled) && !(stat & wxODSelected) )
flags |= DSS_DISABLED;
if ( (stat & wxODHidePrefix) )
flags |= DSS_HIDEPREFIX;
int x = rc.x + GetMarginWidth();
int y = rc.y + (rc.GetHeight() - sizeRect.cy) / 2;
int cx = rc.GetWidth() - GetMarginWidth();
int cy = sizeRect.cy;
::DrawState(hdc, NULL, NULL, wxMSW_CONV_LPARAM(text),
text.length(), x, y, cx, cy, flags);
} // reset to default the font, colors and brush
if (stat & wxODHasFocus)
::DrawFocusRect(hdc, &rect);
return true;
}
void wxStaticBox::PaintForeground(wxDC& dc, const RECT& rc)
{
wxMSWDCImpl *impl = (wxMSWDCImpl*) dc.GetImpl();
MSWDefWindowProc(WM_PAINT, (WPARAM)GetHdcOf(*impl), 0);
// when using XP themes, neither setting the text colour nor transparent
// background mode doesn't change anything: the static box def window proc
// still draws the label in its own colours, so we need to redraw the text
// ourselves if we have a non default fg colour
if ( m_hasFgCol && wxUxThemeEngine::GetIfActive() )
{
// draw over the text in default colour in our colour
HDC hdc = GetHdcOf(*impl);
::SetTextColor(hdc, GetForegroundColour().GetPixel());
const bool rtl = wxTheApp->GetLayoutDirection() == wxLayout_RightToLeft;
if ( rtl )
::SetTextAlign(hdc, TA_RTLREADING | TA_RIGHT);
// Get dimensions of the label
const wxString label = GetLabel();
// choose the correct font
AutoHFONT font;
SelectInHDC selFont;
if ( m_hasFont )
{
selFont.Init(hdc, GetHfontOf(GetFont()));
}
else // no font set, use the one set by the theme
{
wxUxThemeHandle hTheme(this, L"BUTTON");
if ( hTheme )
{
wxUxThemeFont themeFont;
if ( wxUxThemeEngine::Get()->GetThemeFont
(
hTheme,
hdc,
BP_GROUPBOX,
GBS_NORMAL,
TMT_FONT,
themeFont.GetPtr()
) == S_OK )
{
font.Init(themeFont.GetLOGFONT());
if ( font )
selFont.Init(hdc, font);
}
}
}
// Get the font extent
int width, height;
dc.GetTextExtent(wxStripMenuCodes(label, wxStrip_Mnemonics),
&width, &height);
int x;
int y = height;
// first we need to correctly paint the background of the label
// as Windows ignores the brush offset when doing it
//
// FIXME: value of x is hardcoded as this is what it is on my system,
// no idea if it's true everywhere
RECT dimensions = {0, 0, 0, y};
if ( !rtl )
{
x = 9;
dimensions.left = x;
dimensions.right = x + width;
}
else
{
x = rc.right - 7;
dimensions.left = x - width;
dimensions.right = x;
}
// need to adjust the rectangle to cover all the label background
dimensions.left -= 2;
dimensions.right += 2;
dimensions.bottom += 2;
if ( UseBgCol() )
{
// our own background colour should be used for the background of
// the label: this is consistent with the behaviour under pre-XP
// systems (i.e. without visual themes) and generally makes sense
wxBrush brush = wxBrush(GetBackgroundColour());
wxMSWDCImpl *impl = (wxMSWDCImpl*) dc.GetImpl();
::FillRect(GetHdcOf(*impl), &dimensions, GetHbrushOf(brush));
}
else // paint parent background
{
PaintBackground(dc, dimensions);
}
UINT drawTextFlags = DT_SINGLELINE | DT_VCENTER;
// determine the state of UI queues to draw the text correctly under XP
// and later systems
static const bool isXPorLater = wxGetWinVersion() >= wxWinVersion_XP;
if ( isXPorLater )
{
if ( ::SendMessage(GetHwnd(), WM_QUERYUISTATE, 0, 0) &
UISF_HIDEACCEL )
{
drawTextFlags |= DT_HIDEPREFIX;
}
}
// now draw the text
if ( !rtl )
{
RECT rc2 = { x, 0, x + width, y };
::DrawText(hdc, label.t_str(), label.length(), &rc2,
drawTextFlags);
}
else // RTL
{
RECT rc2 = { x, 0, x - width, y };
::DrawText(hdc, label.t_str(), label.length(), &rc2,
drawTextFlags | DT_RTLREADING);
}
}
}
bool wxMenuItem::OnDrawItem(wxDC& dc, const wxRect& rc,
wxODAction WXUNUSED(act), wxODStatus stat)
{
const MenuDrawData* data = MenuDrawData::Get();
wxMSWDCImpl *impl = (wxMSWDCImpl*) dc.GetImpl();
HDC hdc = GetHdcOf(*impl);
RECT rect;
wxCopyRectToRECT(rc, rect);
int imgWidth = wxMax(GetMarginWidth(), data->CheckSize.cx);
if ( IsOwnerDrawn() )
{
// font and colors to use
wxFont font;
GetFontToUse(font);
wxColour colText, colBack;
GetColourToUse(stat, colText, colBack);
// calculate metrics of item parts
RECT rcSelection = rect;
data->ItemMargin.ApplyTo(rcSelection);
RECT rcSeparator = rcSelection;
data->SeparatorMargin.ApplyTo(rcSeparator);
RECT rcGutter = rcSelection;
rcGutter.right = data->ItemMargin.cxLeftWidth
+ data->CheckBgMargin.cxLeftWidth
+ data->CheckMargin.cxLeftWidth
+ imgWidth
+ data->CheckMargin.cxRightWidth
+ data->CheckBgMargin.cxRightWidth;
RECT rcText = rcSelection;
rcText.left = rcGutter.right + data->TextBorder;
// we draw the text label vertically centered, but this results in it
// being 1px too low compared to native menus for some reason, fix it
if ( data->MenuLayout() != MenuDrawData::FullTheme )
rcText.top--;
#if wxUSE_UXTHEME
// If a custom background colour is explicitly specified, we should use
// it instead of the default theme background.
wxUxThemeEngine* const theme = GetBackgroundColour().IsOk()
? NULL
: MenuDrawData::GetUxThemeEngine();
if ( theme )
{
POPUPITEMSTATES state;
if ( stat & wxODDisabled )
{
state = (stat & wxODSelected) ? MPI_DISABLEDHOT
: MPI_DISABLED;
}
else if ( stat & wxODSelected )
{
state = MPI_HOT;
}
else
{
state = MPI_NORMAL;
}
wxUxThemeHandle hTheme(GetMenu()->GetWindow(), L"MENU");
if ( theme->IsThemeBackgroundPartiallyTransparent(hTheme,
MENU_POPUPITEM, state) )
{
theme->DrawThemeBackground(hTheme, hdc,
MENU_POPUPBACKGROUND,
0, &rect, NULL);
}
theme->DrawThemeBackground(hTheme, hdc, MENU_POPUPGUTTER,
0, &rcGutter, NULL);
if ( IsSeparator() )
{
rcSeparator.left = rcGutter.right;
theme->DrawThemeBackground(hTheme, hdc, MENU_POPUPSEPARATOR,
0, &rcSeparator, NULL);
return true;
}
theme->DrawThemeBackground(hTheme, hdc, MENU_POPUPITEM,
state, &rcSelection, NULL);
}
else
#endif // wxUSE_UXTHEME
{
if ( IsSeparator() )
{
DrawEdge(hdc, &rcSeparator, EDGE_ETCHED, BF_TOP);
return true;
}
AutoHBRUSH hbr(colBack.GetPixel());
SelectInHDC selBrush(hdc, hbr);
::FillRect(hdc, &rcSelection, hbr);
}
// draw text label
// using native API because it recognizes '&'
HDCTextColChanger changeTextCol(hdc, colText.GetPixel());
HDCBgColChanger changeBgCol(hdc, colBack.GetPixel());
HDCBgModeChanger changeBgMode(hdc, TRANSPARENT);
SelectInHDC selFont(hdc, GetHfontOf(font));
// item text name without mnemonic for calculating size
wxString text = GetName();
SIZE textSize;
::GetTextExtentPoint32(hdc, text.c_str(), text.length(), &textSize);
// item text name with mnemonic
text = GetItemLabel().BeforeFirst('\t');
int flags = DST_PREFIXTEXT;
// themes menu is using specified color for disabled labels
if ( data->MenuLayout() == MenuDrawData::Classic &&
(stat & wxODDisabled) && !(stat & wxODSelected) )
flags |= DSS_DISABLED;
if ( (stat & wxODHidePrefix) && !data->AlwaysShowCues )
flags |= DSS_HIDEPREFIX;
int x = rcText.left;
int y = rcText.top + (rcText.bottom - rcText.top - textSize.cy) / 2;
::DrawState(hdc, NULL, NULL, wxMSW_CONV_LPARAM(text),
text.length(), x, y, 0, 0, flags);
// ::SetTextAlign(hdc, TA_RIGHT) doesn't work with DSS_DISABLED or DSS_MONO
// as the last parameter in DrawState() (at least with Windows98). So we have
// to take care of right alignment ourselves.
wxString accel = GetItemLabel().AfterFirst(wxT('\t'));
if ( !accel.empty() )
{
SIZE accelSize;
::GetTextExtentPoint32(hdc, accel.c_str(), accel.length(), &accelSize);
flags = DST_TEXT;
// themes menu is using specified color for disabled labels
if ( data->MenuLayout() == MenuDrawData::Classic &&
(stat & wxODDisabled) && !(stat & wxODSelected) )
flags |= DSS_DISABLED;
x = rcText.right - data->ArrowMargin.GetTotalX()
- data->ArrowSize.cx
- data->ArrowBorder;
// right align accel on FullTheme menu, left otherwise
if ( data->MenuLayout() == MenuDrawData::FullTheme)
x -= accelSize.cx;
else
x -= m_parentMenu->GetMaxAccelWidth();
y = rcText.top + (rcText.bottom - rcText.top - accelSize.cy) / 2;
::DrawState(hdc, NULL, NULL, wxMSW_CONV_LPARAM(accel),
accel.length(), x, y, 0, 0, flags);
}
}
// draw the bitmap
RECT rcImg;
SetRect(&rcImg,
rect.left + data->ItemMargin.cxLeftWidth
+ data->CheckBgMargin.cxLeftWidth
+ data->CheckMargin.cxLeftWidth,
rect.top + data->ItemMargin.cyTopHeight
+ data->CheckBgMargin.cyTopHeight
+ data->CheckMargin.cyTopHeight,
rect.left + data->ItemMargin.cxLeftWidth
+ data->CheckBgMargin.cxLeftWidth
+ data->CheckMargin.cxLeftWidth
+ imgWidth,
rect.bottom - data->ItemMargin.cyBottomHeight
- data->CheckBgMargin.cyBottomHeight
- data->CheckMargin.cyBottomHeight);
if ( IsCheckable() && !m_bmpChecked.IsOk() )
{
if ( stat & wxODChecked )
{
DrawStdCheckMark((WXHDC)hdc, &rcImg, stat);
}
}
else
{
wxBitmap bmp;
if ( stat & wxODDisabled )
{
bmp = GetDisabledBitmap();
}
if ( !bmp.IsOk() )
{
// for not checkable bitmaps we should always use unchecked one
// because their checked bitmap is not set
bmp = GetBitmap(!IsCheckable() || (stat & wxODChecked));
#if wxUSE_IMAGE
if ( bmp.IsOk() && stat & wxODDisabled )
{
// we need to grey out the bitmap as we don't have any specific
// disabled bitmap
wxImage imgGrey = bmp.ConvertToImage().ConvertToGreyscale();
if ( imgGrey.IsOk() )
bmp = wxBitmap(imgGrey);
}
#endif // wxUSE_IMAGE
}
if ( bmp.IsOk() )
{
wxMemoryDC dcMem(&dc);
dcMem.SelectObjectAsSource(bmp);
// center bitmap
int nBmpWidth = bmp.GetWidth(),
nBmpHeight = bmp.GetHeight();
int x = rcImg.left + (imgWidth - nBmpWidth) / 2;
int y = rcImg.top + (rcImg.bottom - rcImg.top - nBmpHeight) / 2;
dc.Blit(x, y, nBmpWidth, nBmpHeight, &dcMem, 0, 0, wxCOPY, true);
}
}
return true;
}
void wxStaticBox::PaintForeground(wxDC& dc, const RECT& rc)
{
wxMSWDCImpl *impl = (wxMSWDCImpl*) dc.GetImpl();
MSWDefWindowProc(WM_PAINT, (WPARAM)GetHdcOf(*impl), 0);
// when using XP themes, neither setting the text colour nor transparent
// background mode doesn't change anything: the static box def window proc
// still draws the label in its own colours, so we need to redraw the text
// ourselves if we have a non default fg colour
if ( m_hasFgCol && wxUxThemeEngine::GetIfActive() )
{
// draw over the text in default colour in our colour
HDC hdc = GetHdcOf(*impl);
::SetTextColor(hdc, GetForegroundColour().GetPixel());
const bool rtl = wxTheApp->GetLayoutDirection() == wxLayout_RightToLeft;
if ( rtl )
::SetTextAlign(hdc, TA_RTLREADING | TA_RIGHT);
// Get dimensions of the label
const wxString label = GetLabel();
// choose the correct font
AutoHFONT font;
SelectInHDC selFont;
if ( m_hasFont )
{
selFont.Init(hdc, GetHfontOf(GetFont()));
}
else // no font set, use the one set by the theme
{
wxUxThemeHandle hTheme(this, L"BUTTON");
if ( hTheme )
{
// GetThemeFont() expects its parameter to be LOGFONTW and not
// LOGFONTA even in ANSI programs and will happily corrupt
// memory after the struct end if we pass a LOGFONTA (which is
// smaller) to it!
LOGFONTW lfw;
if ( wxUxThemeEngine::Get()->GetThemeFont
(
hTheme,
hdc,
BP_GROUPBOX,
GBS_NORMAL,
TMT_FONT,
(LOGFONT *)&lfw
) == S_OK )
{
#if wxUSE_UNICODE
// ok, no conversion necessary
const LOGFONT& lf = lfw;
#else // !wxUSE_UNICODE
// most of the fields are the same in LOGFONTA and LOGFONTW
LOGFONT lf;
memcpy(&lf, &lfw, sizeof(lf));
// but the face name must be converted
WideCharToMultiByte(CP_ACP, 0, lfw.lfFaceName, -1,
lf.lfFaceName, sizeof(lf.lfFaceName),
NULL, NULL);
#endif // wxUSE_UNICODE/!wxUSE_UNICODE
font.Init(lf);
if ( font )
selFont.Init(hdc, font);
}
}
}
// Get the font extent
int width, height;
dc.GetTextExtent(wxStripMenuCodes(label, wxStrip_Mnemonics),
&width, &height);
int x;
int y = height;
// first we need to correctly paint the background of the label
// as Windows ignores the brush offset when doing it
//
// FIXME: value of x is hardcoded as this is what it is on my system,
// no idea if it's true everywhere
RECT dimensions = {0, 0, 0, y};
if ( !rtl )
{
x = 9;
dimensions.left = x;
dimensions.right = x + width;
}
else
{
x = rc.right - 7;
dimensions.left = x - width;
dimensions.right = x;
}
// need to adjust the rectangle to cover all the label background
dimensions.left -= 2;
dimensions.right += 2;
dimensions.bottom += 2;
if ( UseBgCol() )
{
// our own background colour should be used for the background of
// the label: this is consistent with the behaviour under pre-XP
// systems (i.e. without visual themes) and generally makes sense
wxBrush brush = wxBrush(GetBackgroundColour());
wxMSWDCImpl *impl = (wxMSWDCImpl*) dc.GetImpl();
::FillRect(GetHdcOf(*impl), &dimensions, GetHbrushOf(brush));
}
else // paint parent background
{
PaintBackground(dc, dimensions);
}
// now draw the text
if ( !rtl )
{
RECT rc2 = { x, 0, x + width, y };
::DrawText(hdc, label.wx_str(), label.length(), &rc2,
DT_SINGLELINE | DT_VCENTER);
}
else // RTL
{
RECT rc2 = { x, 0, x - width, y };
::DrawText(hdc, label.wx_str(), label.length(), &rc2,
DT_SINGLELINE | DT_VCENTER | DT_RTLREADING);
}
}
}
