34be948fdb
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@60112 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
532 lines
14 KiB
C++
532 lines
14 KiB
C++
/////////////////////////////////////////////////////////////////////////////
|
|
// Name: src/gtk/font.cpp
|
|
// Purpose: wxFont for wxGTK
|
|
// Author: Robert Roebling
|
|
// Id: $Id$
|
|
// Copyright: (c) 1998 Robert Roebling and Julian Smart
|
|
// Licence: wxWindows licence
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
|
|
// ============================================================================
|
|
// declarations
|
|
// ============================================================================
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// headers
|
|
// ----------------------------------------------------------------------------
|
|
|
|
// For compilers that support precompilation, includes "wx.h".
|
|
#include "wx/wxprec.h"
|
|
|
|
#include "wx/font.h"
|
|
|
|
#ifndef WX_PRECOMP
|
|
#include "wx/log.h"
|
|
#include "wx/utils.h"
|
|
#include "wx/settings.h"
|
|
#include "wx/cmndata.h"
|
|
#include "wx/gdicmn.h"
|
|
#endif
|
|
|
|
#include "wx/fontutil.h"
|
|
#include "wx/tokenzr.h"
|
|
|
|
#include "wx/gtk/private.h"
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// constants
|
|
// ----------------------------------------------------------------------------
|
|
|
|
// the default size (in points) for the fonts
|
|
static const int wxDEFAULT_FONT_SIZE = 12;
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxFontRefData
|
|
// ----------------------------------------------------------------------------
|
|
|
|
class wxFontRefData : public wxGDIRefData
|
|
{
|
|
public:
|
|
// from broken down font parameters, also default ctor
|
|
wxFontRefData(int size = -1,
|
|
wxFontFamily family = wxFONTFAMILY_DEFAULT,
|
|
wxFontStyle style = wxFONTSTYLE_NORMAL,
|
|
wxFontWeight weight = wxFONTWEIGHT_NORMAL,
|
|
bool underlined = false,
|
|
const wxString& faceName = wxEmptyString,
|
|
wxFontEncoding encoding = wxFONTENCODING_DEFAULT);
|
|
|
|
wxFontRefData(const wxString& nativeFontInfoString);
|
|
|
|
// copy ctor
|
|
wxFontRefData( const wxFontRefData& data );
|
|
|
|
virtual ~wxFontRefData();
|
|
|
|
// setters: all of them also take care to modify m_nativeFontInfo if we
|
|
// have it so as to not lose the information not carried by our fields
|
|
void SetPointSize(int pointSize);
|
|
void SetFamily(wxFontFamily family);
|
|
void SetStyle(wxFontStyle style);
|
|
void SetWeight(wxFontWeight weight);
|
|
void SetUnderlined(bool underlined);
|
|
bool SetFaceName(const wxString& facename);
|
|
void SetEncoding(wxFontEncoding encoding);
|
|
|
|
void SetNoAntiAliasing( bool no = true ) { m_noAA = no; }
|
|
bool GetNoAntiAliasing() const { return m_noAA; }
|
|
|
|
// and this one also modifies all the other font data fields
|
|
void SetNativeFontInfo(const wxNativeFontInfo& info);
|
|
|
|
protected:
|
|
// common part of all ctors
|
|
void Init(int pointSize,
|
|
wxFontFamily family,
|
|
wxFontStyle style,
|
|
wxFontWeight weight,
|
|
bool underlined,
|
|
const wxString& faceName,
|
|
wxFontEncoding encoding);
|
|
|
|
// set all fields from (already initialized and valid) m_nativeFontInfo
|
|
void InitFromNative();
|
|
|
|
private:
|
|
wxFontFamily m_family;
|
|
wxFontEncoding m_encoding;
|
|
bool m_underlined;
|
|
bool m_noAA; // No anti-aliasing
|
|
|
|
// The native font info: basically a PangoFontDescription
|
|
wxNativeFontInfo m_nativeFontInfo;
|
|
|
|
friend class wxFont;
|
|
};
|
|
|
|
#define M_FONTDATA ((wxFontRefData*)m_refData)
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxFontRefData
|
|
// ----------------------------------------------------------------------------
|
|
|
|
void wxFontRefData::Init(int pointSize,
|
|
wxFontFamily family,
|
|
wxFontStyle style,
|
|
wxFontWeight weight,
|
|
bool underlined,
|
|
const wxString& faceName,
|
|
wxFontEncoding encoding)
|
|
{
|
|
m_family = family == wxFONTFAMILY_DEFAULT ? wxFONTFAMILY_SWISS : family;
|
|
|
|
m_underlined = underlined;
|
|
m_encoding = encoding;
|
|
if ( m_encoding == wxFONTENCODING_DEFAULT )
|
|
m_encoding = wxFont::GetDefaultEncoding();
|
|
|
|
m_noAA = false;
|
|
|
|
// Create native font info
|
|
m_nativeFontInfo.description = pango_font_description_new();
|
|
|
|
// And set its values
|
|
if (!faceName.empty())
|
|
{
|
|
pango_font_description_set_family( m_nativeFontInfo.description,
|
|
wxGTK_CONV_SYS(faceName) );
|
|
}
|
|
else
|
|
{
|
|
switch (m_family)
|
|
{
|
|
case wxFONTFAMILY_MODERN:
|
|
case wxFONTFAMILY_TELETYPE:
|
|
pango_font_description_set_family( m_nativeFontInfo.description, "monospace" );
|
|
break;
|
|
case wxFONTFAMILY_ROMAN:
|
|
pango_font_description_set_family( m_nativeFontInfo.description, "serif" );
|
|
break;
|
|
case wxFONTFAMILY_SWISS:
|
|
// SWISS = sans serif
|
|
default:
|
|
pango_font_description_set_family( m_nativeFontInfo.description, "sans" );
|
|
break;
|
|
}
|
|
}
|
|
|
|
SetStyle( style == wxDEFAULT ? wxFONTSTYLE_NORMAL : style );
|
|
SetPointSize( (pointSize == wxDEFAULT || pointSize == -1)
|
|
? wxDEFAULT_FONT_SIZE
|
|
: pointSize );
|
|
SetWeight( weight == wxDEFAULT ? wxFONTWEIGHT_NORMAL : weight );
|
|
}
|
|
|
|
void wxFontRefData::InitFromNative()
|
|
{
|
|
m_noAA = false;
|
|
|
|
// Get native info
|
|
PangoFontDescription *desc = m_nativeFontInfo.description;
|
|
|
|
// Pango sometimes needs to have a size
|
|
int pango_size = pango_font_description_get_size( desc );
|
|
if (pango_size == 0)
|
|
m_nativeFontInfo.SetPointSize(wxDEFAULT_FONT_SIZE);
|
|
|
|
wxString faceName = wxGTK_CONV_BACK_SYS(pango_font_description_get_family(desc));
|
|
if (faceName == wxT("monospace"))
|
|
{
|
|
m_family = wxFONTFAMILY_TELETYPE;
|
|
}
|
|
else if (faceName == wxT("sans"))
|
|
{
|
|
m_family = wxFONTFAMILY_SWISS;
|
|
}
|
|
else if (faceName == wxT("serif"))
|
|
{
|
|
m_family = wxFONTFAMILY_ROMAN;
|
|
}
|
|
else
|
|
{
|
|
m_family = wxFONTFAMILY_UNKNOWN;
|
|
}
|
|
|
|
// Pango description are never underlined
|
|
m_underlined = false;
|
|
|
|
// always with GTK+ 2
|
|
m_encoding = wxFONTENCODING_UTF8;
|
|
}
|
|
|
|
wxFontRefData::wxFontRefData( const wxFontRefData& data )
|
|
: wxGDIRefData()
|
|
{
|
|
m_family = data.m_family;
|
|
m_underlined = data.m_underlined;
|
|
m_encoding = data.m_encoding;
|
|
m_noAA = data.m_noAA;
|
|
|
|
// Forces a copy of the internal data. wxNativeFontInfo should probably
|
|
// have a copy ctor and assignment operator to fix this properly but that
|
|
// would break binary compatibility...
|
|
m_nativeFontInfo.FromString(data.m_nativeFontInfo.ToString());
|
|
}
|
|
|
|
wxFontRefData::wxFontRefData(int size, wxFontFamily family, wxFontStyle style,
|
|
wxFontWeight weight, bool underlined,
|
|
const wxString& faceName,
|
|
wxFontEncoding encoding)
|
|
{
|
|
Init(size, family, style, weight, underlined, faceName, encoding);
|
|
}
|
|
|
|
wxFontRefData::wxFontRefData(const wxString& nativeFontInfoString)
|
|
{
|
|
m_nativeFontInfo.FromString( nativeFontInfoString );
|
|
|
|
InitFromNative();
|
|
}
|
|
|
|
wxFontRefData::~wxFontRefData()
|
|
{
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxFontRefData SetXXX()
|
|
// ----------------------------------------------------------------------------
|
|
|
|
void wxFontRefData::SetPointSize(int pointSize)
|
|
{
|
|
m_nativeFontInfo.SetPointSize(pointSize);
|
|
}
|
|
|
|
/*
|
|
NOTE: disabled because pango_font_description_set_absolute_size() and
|
|
wxDC::GetCharHeight() do not mix well: setting with the former a pixel
|
|
size of "30" makes the latter return 36...
|
|
Besides, we need to return GetPointSize() a point size value even if
|
|
SetPixelSize() was used and this would require further changes
|
|
(and use of pango_font_description_get_size_is_absolute in some places).
|
|
|
|
bool wxFontRefData::SetPixelSize(const wxSize& pixelSize)
|
|
{
|
|
wxCHECK_MSG( pixelSize.GetWidth() >= 0 && pixelSize.GetHeight() > 0, false,
|
|
"Negative values for the pixel size or zero pixel height are not allowed" );
|
|
|
|
if (wx_pango_version_check(1,8,0) != NULL ||
|
|
pixelSize.GetWidth() != 0)
|
|
{
|
|
// NOTE: pango_font_description_set_absolute_size() only sets the font height;
|
|
// if the user set the pixel width of the font explicitly or the pango
|
|
// library is too old, we cannot proceed
|
|
return false;
|
|
}
|
|
|
|
pango_font_description_set_absolute_size( m_nativeFontInfo.description,
|
|
pixelSize.GetHeight() * PANGO_SCALE );
|
|
|
|
return true;
|
|
}
|
|
|
|
*/
|
|
|
|
void wxFontRefData::SetFamily(wxFontFamily family)
|
|
{
|
|
m_family = family;
|
|
|
|
// wxNativeInfo::SetFamily asserts because is currently not implemented---
|
|
// we just save the family here FIXME
|
|
}
|
|
|
|
void wxFontRefData::SetStyle(wxFontStyle style)
|
|
{
|
|
m_nativeFontInfo.SetStyle((wxFontStyle)style);
|
|
}
|
|
|
|
void wxFontRefData::SetWeight(wxFontWeight weight)
|
|
{
|
|
m_nativeFontInfo.SetWeight((wxFontWeight)weight);
|
|
}
|
|
|
|
void wxFontRefData::SetUnderlined(bool underlined)
|
|
{
|
|
m_underlined = underlined;
|
|
|
|
// the Pango font descriptor does not have an underlined attribute
|
|
// (and wxNativeFontInfo::SetUnderlined asserts); rather it's
|
|
// wxWindowDCImpl::DoDrawText that handles underlined fonts, so we
|
|
// here we just need to save the underlined attribute
|
|
}
|
|
|
|
bool wxFontRefData::SetFaceName(const wxString& facename)
|
|
{
|
|
return m_nativeFontInfo.SetFaceName(facename);
|
|
}
|
|
|
|
void wxFontRefData::SetEncoding(wxFontEncoding encoding)
|
|
{
|
|
m_encoding = encoding;
|
|
|
|
// the internal Pango encoding is always UTF8; here we save the
|
|
// encoding just to make it possible to return it from GetEncoding()
|
|
// FIXME: this seems wrong; shouldn't GetEncoding() always return wxFONTENCODING_UTF8?
|
|
}
|
|
|
|
void wxFontRefData::SetNativeFontInfo(const wxNativeFontInfo& info)
|
|
{
|
|
m_nativeFontInfo = info;
|
|
|
|
// set all the other font parameters from the native font info
|
|
InitFromNative();
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxFont creation
|
|
// ----------------------------------------------------------------------------
|
|
|
|
IMPLEMENT_DYNAMIC_CLASS(wxFont, wxGDIObject)
|
|
|
|
wxFont::wxFont(const wxNativeFontInfo& info)
|
|
{
|
|
Create( info.GetPointSize(),
|
|
info.GetFamily(),
|
|
info.GetStyle(),
|
|
info.GetWeight(),
|
|
info.GetUnderlined(),
|
|
info.GetFaceName(),
|
|
info.GetEncoding() );
|
|
}
|
|
|
|
bool wxFont::Create( int pointSize,
|
|
wxFontFamily family,
|
|
wxFontStyle style,
|
|
wxFontWeight weight,
|
|
bool underlined,
|
|
const wxString& face,
|
|
wxFontEncoding encoding )
|
|
{
|
|
UnRef();
|
|
|
|
m_refData = new wxFontRefData(pointSize, family, style, weight,
|
|
underlined, face, encoding);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool wxFont::Create(const wxString& fontname)
|
|
{
|
|
// VZ: does this really happen?
|
|
if ( fontname.empty() )
|
|
{
|
|
*this = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
|
|
|
|
return true;
|
|
}
|
|
|
|
m_refData = new wxFontRefData(fontname);
|
|
|
|
return true;
|
|
}
|
|
|
|
wxFont::~wxFont()
|
|
{
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// accessors
|
|
// ----------------------------------------------------------------------------
|
|
|
|
int wxFont::GetPointSize() const
|
|
{
|
|
wxCHECK_MSG( IsOk(), 0, wxT("invalid font") );
|
|
|
|
return M_FONTDATA->m_nativeFontInfo.GetPointSize();
|
|
}
|
|
|
|
wxString wxFont::GetFaceName() const
|
|
{
|
|
wxCHECK_MSG( IsOk(), wxEmptyString, wxT("invalid font") );
|
|
|
|
return M_FONTDATA->m_nativeFontInfo.GetFaceName();
|
|
}
|
|
|
|
wxFontFamily wxFont::GetFamily() const
|
|
{
|
|
wxCHECK_MSG( IsOk(), wxFONTFAMILY_MAX, wxT("invalid font") );
|
|
|
|
wxFontFamily ret = M_FONTDATA->m_nativeFontInfo.GetFamily();
|
|
|
|
if (ret == wxFONTFAMILY_DEFAULT)
|
|
ret = M_FONTDATA->m_family;
|
|
|
|
return ret;
|
|
}
|
|
|
|
wxFontStyle wxFont::GetStyle() const
|
|
{
|
|
wxCHECK_MSG( IsOk(), wxFONTSTYLE_MAX, wxT("invalid font") );
|
|
|
|
return M_FONTDATA->m_nativeFontInfo.GetStyle();
|
|
}
|
|
|
|
wxFontWeight wxFont::GetWeight() const
|
|
{
|
|
wxCHECK_MSG( IsOk(), wxFONTWEIGHT_MAX, wxT("invalid font") );
|
|
|
|
return M_FONTDATA->m_nativeFontInfo.GetWeight();
|
|
}
|
|
|
|
bool wxFont::GetUnderlined() const
|
|
{
|
|
wxCHECK_MSG( IsOk(), false, wxT("invalid font") );
|
|
|
|
return M_FONTDATA->m_underlined;
|
|
}
|
|
|
|
wxFontEncoding wxFont::GetEncoding() const
|
|
{
|
|
wxCHECK_MSG( IsOk(), wxFONTENCODING_SYSTEM, wxT("invalid font") );
|
|
|
|
return M_FONTDATA->m_encoding;
|
|
}
|
|
|
|
bool wxFont::GetNoAntiAliasing() const
|
|
{
|
|
wxCHECK_MSG( IsOk(), false, wxT("invalid font") );
|
|
|
|
return M_FONTDATA->m_noAA;
|
|
}
|
|
|
|
const wxNativeFontInfo *wxFont::GetNativeFontInfo() const
|
|
{
|
|
wxCHECK_MSG( IsOk(), NULL, wxT("invalid font") );
|
|
|
|
return &(M_FONTDATA->m_nativeFontInfo);
|
|
}
|
|
|
|
bool wxFont::IsFixedWidth() const
|
|
{
|
|
wxCHECK_MSG( IsOk(), false, wxT("invalid font") );
|
|
|
|
return wxFontBase::IsFixedWidth();
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// change font attributes
|
|
// ----------------------------------------------------------------------------
|
|
|
|
void wxFont::SetPointSize(int pointSize)
|
|
{
|
|
AllocExclusive();
|
|
|
|
M_FONTDATA->SetPointSize(pointSize);
|
|
}
|
|
|
|
void wxFont::SetFamily(wxFontFamily family)
|
|
{
|
|
AllocExclusive();
|
|
|
|
M_FONTDATA->SetFamily(family);
|
|
}
|
|
|
|
void wxFont::SetStyle(wxFontStyle style)
|
|
{
|
|
AllocExclusive();
|
|
|
|
M_FONTDATA->SetStyle(style);
|
|
}
|
|
|
|
void wxFont::SetWeight(wxFontWeight weight)
|
|
{
|
|
AllocExclusive();
|
|
|
|
M_FONTDATA->SetWeight(weight);
|
|
}
|
|
|
|
bool wxFont::SetFaceName(const wxString& faceName)
|
|
{
|
|
AllocExclusive();
|
|
|
|
return M_FONTDATA->SetFaceName(faceName) &&
|
|
wxFontBase::SetFaceName(faceName);
|
|
}
|
|
|
|
void wxFont::SetUnderlined(bool underlined)
|
|
{
|
|
AllocExclusive();
|
|
|
|
M_FONTDATA->SetUnderlined(underlined);
|
|
}
|
|
|
|
void wxFont::SetEncoding(wxFontEncoding encoding)
|
|
{
|
|
AllocExclusive();
|
|
|
|
M_FONTDATA->SetEncoding(encoding);
|
|
}
|
|
|
|
void wxFont::DoSetNativeFontInfo( const wxNativeFontInfo& info )
|
|
{
|
|
AllocExclusive();
|
|
|
|
M_FONTDATA->SetNativeFontInfo( info );
|
|
}
|
|
|
|
void wxFont::SetNoAntiAliasing( bool no )
|
|
{
|
|
AllocExclusive();
|
|
|
|
M_FONTDATA->SetNoAntiAliasing( no );
|
|
}
|
|
|
|
wxGDIRefData* wxFont::CreateGDIRefData() const
|
|
{
|
|
return new wxFontRefData;
|
|
}
|
|
|
|
wxGDIRefData* wxFont::CloneGDIRefData(const wxGDIRefData* data) const
|
|
{
|
|
return new wxFontRefData(*static_cast<const wxFontRefData*>(data));
|
|
}
|