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Implemented GetTextExtent() for GTK 2.0.

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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
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44
src/gtk1/window.cpp
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@@ -48,6 +48,7 @@
#include "wx/intl.h"
#include "wx/settings.h"
#include "wx/log.h"
#include "wx/fontutil.h"
#ifdef __WXDEBUG__
#include "wx/thread.h"
@@ -3138,12 +3139,55 @@ void wxWindowGTK::GetTextExtent( const wxString& string,
if (theFont) fontToUse = *theFont;
wxCHECK_RET( fontToUse.Ok(), wxT("invalid font") );
if (string.IsEmpty())
{
if (x) (*y) = 0;
if (x) (*y) = 0;
return;
}
#ifdef __WXGTK20__
PangoContext *context = NULL;
if (m_widget)
gtk_widget_get_pango_context( m_widget );
if (!context)
{
if (x) (*y) = 0;
if (x) (*y) = 0;
return;
}
PangoFontDescription *desc = fontToUse.GetNativeFontInfo()->description;
PangoLayout *layout = pango_layout_new(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 (x) (*x) = (wxCoord) rect.width;
if (y) (*y) = (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( 1.0 );
if (x) (*x) = gdk_string_width( font, wxGTK_CONV( string ) );
if (y) (*y) = font->ascent + font->descent;
if (descent) (*descent) = font->descent;
if (externalLeading) (*externalLeading) = 0; // ??
#endif
}
void wxWindowGTK::SetFocus()