/////////////////////////////////////////////////////////////////////////////
-// Name: common/fontcmn.cpp
+// Name: src/common/fontcmn.cpp
// Purpose: implementation of wxFontBase methods
// Author: Vadim Zeitlin
// Modified by:
// headers
// ----------------------------------------------------------------------------
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma implementation "fontbase.h"
-#endif
-
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
-#pragma hdrstop
+ #pragma hdrstop
#endif
-#ifndef WX_PRECOMP
#include "wx/font.h"
-#include "wx/intl.h"
+
+#ifndef WX_PRECOMP
+ #include "wx/dc.h"
+ #include "wx/intl.h"
+ #include "wx/dcscreen.h"
+ #include "wx/log.h"
#endif // WX_PRECOMP
#include "wx/gdicmn.h"
#if defined(__WXMSW__)
- #include "wx/msw/private.h" // includes windows.h for LOGFONT
- #include "wx/msw/winundef.h"
+ #include "wx/msw/private.h" // includes windows.h for LOGFONT
+ #include "wx/msw/winundef.h"
#endif
#include "wx/fontutil.h" // for wxNativeFontInfo
#include "wx/fontmap.h"
+#include "wx/fontenum.h"
#include "wx/tokenzr.h"
// implementation
// ============================================================================
+// ----------------------------------------------------------------------------
+// helper functions
+// ----------------------------------------------------------------------------
+
+static void AdjustFontSize(wxFont& font, wxDC& dc, const wxSize& pixelSize)
+{
+ int currentSize = 0;
+ int largestGood = 0;
+ int smallestBad = 0;
+
+ bool initialGoodFound = false;
+ bool initialBadFound = false;
+
+ // NB: this assignment was separated from the variable definition
+ // in order to fix a gcc v3.3.3 compiler crash
+ currentSize = font.GetPointSize();
+ while (currentSize > 0)
+ {
+ dc.SetFont(font);
+
+ // if currentSize (in points) results in a font that is smaller
+ // than required by pixelSize it is considered a good size
+ if (dc.GetCharHeight() <= pixelSize.GetHeight() &&
+ (!pixelSize.GetWidth() ||
+ dc.GetCharWidth() <= pixelSize.GetWidth()))
+ {
+ largestGood = currentSize;
+ initialGoodFound = true;
+ }
+ else
+ {
+ smallestBad = currentSize;
+ initialBadFound = true;
+ }
+ if (!initialGoodFound)
+ {
+ currentSize /= 2;
+ }
+ else if (!initialBadFound)
+ {
+ currentSize *= 2;
+ }
+ else
+ {
+ int distance = smallestBad - largestGood;
+ if (distance == 1)
+ break;
+
+ currentSize = largestGood + distance / 2;
+ }
+
+ font.SetPointSize(currentSize);
+ }
+
+ if (currentSize != largestGood)
+ font.SetPointSize(largestGood);
+}
+
// ----------------------------------------------------------------------------
// wxFontBase
// ----------------------------------------------------------------------------
return new wxFont(size, family, style, weight, underlined, face, encoding);
}
-/* static */
-wxFont *wxFontBase::New(int pointSize,
- wxFontFamily family,
- int flags,
- const wxString& face,
- wxFontEncoding encoding)
+static inline int flags2Style(int flags)
{
- return New
- (
- pointSize,
- family,
- flags & wxFONTFLAG_ITALIC
+ return flags & wxFONTFLAG_ITALIC
? wxFONTSTYLE_ITALIC
: flags & wxFONTFLAG_SLANT
? wxFONTSTYLE_SLANT
- : wxFONTSTYLE_NORMAL,
- flags & wxFONTFLAG_LIGHT
+ : wxFONTSTYLE_NORMAL;
+}
+
+static inline int flags2Weight(int flags)
+{
+ return flags & wxFONTFLAG_LIGHT
? wxFONTWEIGHT_LIGHT
: flags & wxFONTFLAG_BOLD
? wxFONTWEIGHT_BOLD
- : wxFONTWEIGHT_NORMAL,
- (flags & wxFONTFLAG_UNDERLINED) != 0,
- face,
- encoding
- );
+ : wxFONTWEIGHT_NORMAL;
+}
+
+static inline bool flags2Underlined(int flags)
+{
+ return (flags & wxFONTFLAG_UNDERLINED) != 0;
+}
+
+/* static */
+wxFont *wxFontBase::New(int pointSize,
+ wxFontFamily family,
+ int flags,
+ const wxString& face,
+ wxFontEncoding encoding)
+{
+ return New(pointSize, family, flags2Style(flags), flags2Weight(flags),
+ flags2Underlined(flags), face, encoding);
+}
+
+/* static */
+wxFont *wxFontBase::New(const wxSize& pixelSize,
+ int family,
+ int style,
+ int weight,
+ bool underlined,
+ const wxString& face,
+ wxFontEncoding encoding)
+{
+#if defined(__WXMSW__)
+ return new wxFont(pixelSize, family, style, weight, underlined,
+ face, encoding);
+#else
+ wxFont *self = New(10, family, style, weight, underlined, face, encoding);
+ wxScreenDC dc;
+ AdjustFontSize(*(wxFont *)self, dc, pixelSize);
+ return self;
+#endif
+}
+
+/* static */
+wxFont *wxFontBase::New(const wxSize& pixelSize,
+ wxFontFamily family,
+ int flags,
+ const wxString& face,
+ wxFontEncoding encoding)
+{
+ return New(pixelSize, family, flags2Style(flags), flags2Weight(flags),
+ flags2Underlined(flags), face, encoding);
+}
+
+wxSize wxFontBase::GetPixelSize() const
+{
+ wxScreenDC dc;
+ dc.SetFont(*(wxFont *)this);
+ return wxSize(dc.GetCharWidth(), dc.GetCharHeight());
+}
+
+bool wxFontBase::IsUsingSizeInPixels() const
+{
+ return false;
+}
+
+void wxFontBase::SetPixelSize( const wxSize& pixelSize )
+{
+ wxScreenDC dc;
+ AdjustFontSize(*(wxFont *)this, dc, pixelSize);
}
/* static */
if ( fontInfo )
{
fontDesc = fontInfo->ToString();
+ wxASSERT_MSG(!fontDesc.IsEmpty(), wxT("This should be a non-empty string!"));
+ }
+ else
+ {
+ wxFAIL_MSG(wxT("Derived class should have created the wxNativeFontInfo!"));
}
return fontDesc;
if ( fontInfo )
{
fontDesc = fontInfo->ToUserString();
+ wxASSERT_MSG(!fontDesc.IsEmpty(), wxT("This should be a non-empty string!"));
+ }
+ else
+ {
+ wxFAIL_MSG(wxT("Derived class should have created the wxNativeFontInfo!"));
}
return fontDesc;
}
-void wxFontBase::SetNativeFontInfo(const wxString& info)
+bool wxFontBase::SetNativeFontInfo(const wxString& info)
{
wxNativeFontInfo fontInfo;
if ( !info.empty() && fontInfo.FromString(info) )
{
SetNativeFontInfo(fontInfo);
+ return true;
}
+
+ UnRef();
+ return false;
}
-void wxFontBase::SetNativeFontInfoUserDesc(const wxString& info)
+bool wxFontBase::SetNativeFontInfoUserDesc(const wxString& info)
{
wxNativeFontInfo fontInfo;
if ( !info.empty() && fontInfo.FromUserString(info) )
{
SetNativeFontInfo(fontInfo);
+ return true;
}
-}
-
-wxFont& wxFont::operator=(const wxFont& font)
-{
- if ( this != &font )
- Ref(font);
- return (wxFont &)*this;
+ UnRef();
+ return false;
}
bool wxFontBase::operator==(const wxFont& font) const
GetStyle() == font.GetStyle() &&
GetWeight() == font.GetWeight() &&
GetUnderlined() == font.GetUnderlined() &&
- GetFaceName() == font.GetFaceName() &&
+ GetFaceName().IsSameAs(font.GetFaceName(), false) &&
GetEncoding() == font.GetEncoding()
);
}
}
}
+bool wxFontBase::SetFaceName(const wxString &facename)
+{
+ if (!wxFontEnumerator::IsValidFacename(facename))
+ {
+ UnRef(); // make Ok() return false
+ return false;
+ }
+
+ return true;
+}
+
+
// ----------------------------------------------------------------------------
// wxNativeFontInfo
// ----------------------------------------------------------------------------
+// Up to now, there are no native implementations of this function:
+void wxNativeFontInfo::SetFaceName(const wxArrayString &facenames)
+{
+ for (size_t i=0; i < facenames.GetCount(); i++)
+ {
+ if (wxFontEnumerator::IsValidFacename(facenames[i]))
+ {
+ SetFaceName(facenames[i]);
+ return;
+ }
+ }
+
+ // set the first valid facename we can find on this system
+ wxString validfacename = wxFontEnumerator::GetFacenames().Item(0);
+ wxLogTrace(wxT("font"), wxT("Falling back to '%s'"), validfacename.c_str());
+ SetFaceName(validfacename);
+}
+
+
#ifdef wxNO_NATIVE_FONTINFO
// These are the generic forms of FromString()/ToString.
underlined = underlined_;
}
-void wxNativeFontInfo::SetFaceName(wxString facename_)
+bool wxNativeFontInfo::SetFaceName(const wxString& facename_)
{
faceName = facename_;
+ return true;
}
void wxNativeFontInfo::SetFamily(wxFontFamily family_)
// but what else can we do?
if ( GetUnderlined() )
{
- desc << _("underlined ");
+ desc << _("underlined");
}
switch ( GetWeight() )
break;
case wxFONTWEIGHT_LIGHT:
- desc << _("light ");
+ desc << _(" light");
break;
case wxFONTWEIGHT_BOLD:
- desc << _("bold ");
+ desc << _(" bold");
break;
}
// we don't distinguish between the two for now anyhow...
case wxFONTSTYLE_ITALIC:
case wxFONTSTYLE_SLANT:
- desc << _("italic");
+ desc << _(" italic");
break;
}
wxFontEncoding enc = GetEncoding();
if ( enc != wxFONTENCODING_DEFAULT && enc != wxFONTENCODING_SYSTEM )
{
- desc << _T(' ') << wxFontMapper::Get()->GetEncodingName(enc);
+ desc << _T(' ') << wxFontMapper::GetEncodingName(enc);
}
#endif // wxUSE_FONTMAP
- return desc;
+ return desc.Strip(wxString::both).MakeLower();
}
bool wxNativeFontInfo::FromUserString(const wxString& s)
wxString face;
unsigned long size;
-
-#if wxUSE_FONTMAP
- wxFontEncoding encoding;
-#endif // wxUSE_FONTMAP
+ bool weightfound = false, pointsizefound = false, encodingfound = false;
while ( tokenizer.HasMoreTokens() )
{
else if ( token == _T("light") || token == _("light") )
{
SetWeight(wxFONTWEIGHT_LIGHT);
+ weightfound = true;
}
else if ( token == _T("bold") || token == _("bold") )
{
SetWeight(wxFONTWEIGHT_BOLD);
+ weightfound = true;
}
else if ( token == _T("italic") || token == _("italic") )
{
else if ( token.ToULong(&size) )
{
SetPointSize(size);
+ pointsizefound = true;
}
+ else
+ {
#if wxUSE_FONTMAP
- else if ( (encoding = wxFontMapper::Get()->CharsetToEncoding(token, false))
- != wxFONTENCODING_DEFAULT )
+ // try to interpret this as an encoding
+ wxFontEncoding encoding = wxFontMapper::Get()->CharsetToEncoding(token, false);
+ if ( encoding != wxFONTENCODING_DEFAULT &&
+ encoding != wxFONTENCODING_SYSTEM ) // returned when the recognition failed
{
SetEncoding(encoding);
+ encodingfound = true;
}
-#endif // wxUSE_FONTMAP
- else // assume it is the face name
+ else
{
+#endif // wxUSE_FONTMAP
+
+ // assume it is the face name
if ( !face.empty() )
{
face += _T(' ');
// skip the code which resets face below
continue;
+
+#if wxUSE_FONTMAP
+ }
+#endif // wxUSE_FONTMAP
}
// if we had had the facename, we shouldn't continue appending tokens
// bar")
if ( !face.empty() )
{
- SetFaceName(face);
+ // NB: the check on the facename is implemented in wxFontBase::SetFaceName
+ // and not in wxNativeFontInfo::SetFaceName thus we need to explicitely
+ // call here wxFontEnumerator::IsValidFacename
+ if (!wxFontEnumerator::IsValidFacename(face) ||
+ !SetFaceName(face))
+ SetFaceName(wxNORMAL_FONT->GetFaceName());
face.clear();
}
}
// we might not have flushed it inside the loop
if ( !face.empty() )
{
- SetFaceName(face);
+ // NB: the check on the facename is implemented in wxFontBase::SetFaceName
+ // and not in wxNativeFontInfo::SetFaceName thus we need to explicitely
+ // call here wxFontEnumerator::IsValidFacename
+ if (!wxFontEnumerator::IsValidFacename(face) ||
+ !SetFaceName(face))
+ SetFaceName(wxNORMAL_FONT->GetFaceName());
}
+ // set point size to default value if size was not given
+ if ( !pointsizefound )
+ SetPointSize(wxNORMAL_FONT->GetPointSize());
+
+ // set font weight to default value if weight was not given
+ if ( !weightfound )
+ SetWeight(wxFONTWEIGHT_NORMAL);
+
+#if wxUSE_FONTMAP
+ // set font encoding to default value if encoding was not given
+ if ( !encodingfound )
+ SetEncoding(wxFONTENCODING_SYSTEM);
+#endif // wxUSE_FONTMAP
+
return true;
}
#endif // generic or wxMSW or wxOS2
-
projects / wxWidgets.git / blobdiff