Implemented GetTextExtent() for GTK 2.0.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@16485 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Robert Roebling
2002-08-13 17:23:20 +00:00
parent 5c0a20c393
commit 48d011c896
4 changed files with 160 additions and 8 deletions

View File

@@ -1427,8 +1427,8 @@ void wxWindowDC::DoDrawText( const wxString &text, wxCoord x, wxCoord y )
PangoLayout *layout = pango_layout_new(m_context);
pango_layout_set_font_description(layout, m_fontdesc);
{
const wxWX2MBbuf data = text.mb_str(wxConvUTF8);
pango_layout_set_text(layout, data, strlen(data));
const wxCharBuffer data = wxConvUTF8.cWC2MB( text );
pango_layout_set_text(layout, (const char*) data, strlen( (const char*) data ));
}
PangoLayoutLine *line = (PangoLayoutLine *)pango_layout_get_lines(layout)->data;
PangoRectangle rect;
@@ -1447,7 +1447,6 @@ void wxWindowDC::DoDrawText( const wxString &text, wxCoord x, wxCoord y )
gdk_gc_set_foreground( m_textGC, m_textForegroundColour.GetColor() );
}
gdk_draw_string( m_window, font, m_textGC, x, y + font->ascent, text.mbc_str() );
#endif // GTK+ 2.0/1.x
/* CMB 17/7/98: simple underline: ignores scaling and underlying
X font's XA_UNDERLINE_POSITION and XA_UNDERLINE_THICKNESS
@@ -1458,6 +1457,7 @@ void wxWindowDC::DoDrawText( const wxString &text, wxCoord x, wxCoord y )
if (font->descent > 0) ul_y++;
gdk_draw_line( m_window, m_textGC, x, ul_y, x + width, ul_y);
}
#endif // GTK+ 2.0/1.x
#if defined(__WXGTK20__) && wxUSE_WCHAR_T
g_object_unref( G_OBJECT( layout ) );
@@ -1588,12 +1588,44 @@ void wxWindowDC::DoGetTextExtent(const wxString &string,
{
wxFont fontToUse = m_font;
if (theFont) fontToUse = *theFont;
if (string.IsEmpty())
{
if (width) (*width) = 0;
if (height) (*height) = 0;
return;
}
#ifdef __WXGTK20__
PangoFontDescription *desc = fontToUse.GetNativeFontInfo()->description;
PangoLayout *layout = pango_layout_new(m_context);
pango_layout_set_font_description(layout, desc);
{
const wxCharBuffer data = wxConvUTF8.cWC2MB( string );
pango_layout_set_text(layout, (const char*) data, strlen( (const char*) data ));
}
PangoLayoutLine *line = (PangoLayoutLine *)pango_layout_get_lines(layout)->data;
PangoRectangle rect;
pango_layout_line_get_extents(line, NULL, &rect);
if (width) (*width) = (wxCoord) rect.width;
if (height) (*height) = (wxCoord) rect.height;
if (descent)
{
// Do something about metrics here
(*descent) = 0;
}
if (externalLeading) (*externalLeading) = 0; // ??
g_object_unref( G_OBJECT( layout ) );
#else
GdkFont *font = fontToUse.GetInternalFont( m_scaleY );
if (width) (*width) = wxCoord(gdk_string_width( font, string.mbc_str() ) / m_scaleX);
if (height) (*height) = wxCoord((font->ascent + font->descent) / m_scaleY);
if (descent) (*descent) = wxCoord(font->descent / m_scaleY);
if (externalLeading) (*externalLeading) = 0; // ??
#endif
}
wxCoord wxWindowDC::GetCharWidth() const