Use extraFontFlag to specify if anti-aliased fonts should be used.

Use GetPartialTextExtents.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@25751 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

contrib/include/wx/stc/stc.h

@@ -2482,7 +2482,14 @@ public:
     bool DoDropText(long x, long y, const wxString& data);
 #endif
 
+    // Specify whether anti-aliased fonts should be used.  Will have no effect
+    // on some platforms, but on some (wxMac for example) can greatly improve
+    // performance.
+    void SetUseAntiAliasing(bool useAA);
 
+    // Returns the current UseAntiAliasing setting.
+    bool GetUseAntiAliasing();
+    
 
 //----------------------------------------------------------------------
 

contrib/src/stc/PlatWX.cpp

@@ -100,7 +100,7 @@ Font::Font() {
 Font::~Font() {
 }
 
-void Font::Create(const char *faceName, int characterSet, int size, bool bold, bool italic) {
+void Font::Create(const char *faceName, int characterSet, int size, bool bold, bool italic, bool extraFontFlag) {
     wxFontEncoding encoding;
 
     Release();
@@ -185,13 +185,15 @@ void Font::Create(const char *faceName, int characterSet, int size, bool bold, b
     if (ea.GetCount())
         encoding = ea[0];
 
-    id = new wxFont(size,
+    wxFont* font = new wxFont(size,
                     wxDEFAULT,
                     italic ? wxITALIC :  wxNORMAL,
                     bold ? wxBOLD : wxNORMAL,
                     false,
                     stc2wx(faceName),
                     encoding);
+    font->SetNoAntiAliasing(!extraFontFlag);
+    id = font;
 }
 
 
@@ -445,42 +447,18 @@ void SurfaceImpl::DrawTextTransparent(PRectangle rc, Font &font, int ybase,
 
 void SurfaceImpl::MeasureWidths(Font &font, const char *s, int len, int *positions) {
 
-    wxString str = stc2wx(s, len);
+    wxString   str = stc2wx(s, len);
+    wxArrayInt tpos;
+
     SetFont(font);
 
-#ifndef __WXMAC__
+    hdc->GetPartialTextExtents(str, tpos);
-    // Calculate the position of each character based on the widths of
-    // the previous characters
-    int* tpos = new int[len+1];
-    int totalWidth = 0;
-    size_t i;
-    for (i=0; i<str.Length(); i++) {
-        int w, h;
-        hdc->GetTextExtent(str[i], &w, &h);
-        totalWidth += w;
-        tpos[i] = totalWidth;
-    }
-#else
-    // Instead of a running total, remeasure from the begining of the
-    // text for each character's position.  This is because with AA fonts
-    // on OS X widths can be fractions of pixels wide when more than one
-    // are drawn together, so the sum of all character widths is not necessarily
-    // (and probably not) the same as the whole string width.
-    int* tpos = new int[len+1];
-    size_t i;
-    for (i=0; i<str.Length(); i++) {
-        int w, h;
-        hdc->GetTextExtent(str.Left(i+1), &w, &h);
-        tpos[i] = w;
-    }
-#endif
-
 
 #if wxUSE_UNICODE
     // Map the widths for UCS-2 characters back to the UTF-8 input string
     // NOTE:  I don't think this is right for when sizeof(wxChar) > 2, ie wxGTK2
     // so figure it out and fix it!
-    i = 0;
+    size_t i = 0;
     size_t ui = 0;
     while ((int)i < len) {
         unsigned char uch = (unsigned char)s[i];
@@ -498,10 +476,8 @@ void SurfaceImpl::MeasureWidths(Font &font, const char *s, int len, int *positio
 #else
 
     // If not unicode then just use the widths we have
-    memcpy(positions, tpos, len * sizeof(*tpos));
+    memcpy(positions, tpos.begin(), len * sizeof(int));
 #endif
-
-    delete [] tpos;
 }
 
 

contrib/src/stc/ScintillaWX.cpp

@@ -160,6 +160,7 @@ void ScintillaWX::Initialise() {
     dropTarget->SetScintilla(this);
     stc->SetDropTarget(dropTarget);
 #endif
+    vs.extraFontFlag = true;
 }
 
 
@@ -907,5 +908,15 @@ void ScintillaWX::ClipChildren(wxDC& WXUNUSED(dc), PRectangle WXUNUSED(rect)) {
 }
 #endif
 
+
+void ScintillaWX::SetUseAntiAliasing(bool useAA) {
+    vs.extraFontFlag = useAA;
+    InvalidateStyleRedraw();
+}
+
+bool ScintillaWX::GetUseAntiAliasing() {
+    return vs.extraFontFlag;
+}
+ 
 //----------------------------------------------------------------------
 //----------------------------------------------------------------------

contrib/src/stc/ScintillaWX.h

@@ -164,6 +164,8 @@ public:
     void DoScrollToLine(int line);
     void DoScrollToColumn(int column);
     void ClipChildren(wxDC& dc, PRectangle rect);
+    void SetUseAntiAliasing(bool useAA);
+    bool GetUseAntiAliasing();
 
 private:
     bool                capturedMouse;

contrib/src/stc/stc.cpp

@@ -2230,6 +2230,14 @@ bool wxStyledTextCtrl::DoDropText(long x, long y, const wxString& data) {
 #endif
 
 
+void wxStyledTextCtrl::SetUseAntiAliasing(bool useAA) {
+    m_swx->SetUseAntiAliasing(useAA);
+}
+
+bool wxStyledTextCtrl::GetUseAntiAliasing() {
+    return m_swx->GetUseAntiAliasing();
+}
+
 //----------------------------------------------------------------------
 // Event handlers
 

contrib/src/stc/stc.cpp.in

@@ -392,6 +392,14 @@ bool wxStyledTextCtrl::DoDropText(long x, long y, const wxString& data) {
 #endif
 
 
+void wxStyledTextCtrl::SetUseAntiAliasing(bool useAA) {
+    m_swx->SetUseAntiAliasing(useAA);
+}
+
+bool wxStyledTextCtrl::GetUseAntiAliasing() {
+    return m_swx->GetUseAntiAliasing();
+}
+
 //----------------------------------------------------------------------
 // Event handlers
 

contrib/src/stc/stc.h.in

@@ -210,7 +210,14 @@ public:
     bool DoDropText(long x, long y, const wxString& data);
 #endif
 
+    // Specify whether anti-aliased fonts should be used.  Will have no effect
+    // on some platforms, but on some (wxMac for example) can greatly improve
+    // performance.
+    void SetUseAntiAliasing(bool useAA);
 
+    // Returns the current UseAntiAliasing setting.
+    bool GetUseAntiAliasing();
+    
 
 //----------------------------------------------------------------------
 

include/wx/stc/stc.h

@@ -2482,7 +2482,14 @@ public:
     bool DoDropText(long x, long y, const wxString& data);
 #endif
 
+    // Specify whether anti-aliased fonts should be used.  Will have no effect
+    // on some platforms, but on some (wxMac for example) can greatly improve
+    // performance.
+    void SetUseAntiAliasing(bool useAA);
 
+    // Returns the current UseAntiAliasing setting.
+    bool GetUseAntiAliasing();
+    
 
 //----------------------------------------------------------------------
 

src/stc/PlatWX.cpp

@@ -100,7 +100,7 @@ Font::Font() {
 Font::~Font() {
 }
 
-void Font::Create(const char *faceName, int characterSet, int size, bool bold, bool italic) {
+void Font::Create(const char *faceName, int characterSet, int size, bool bold, bool italic, bool extraFontFlag) {
     wxFontEncoding encoding;
 
     Release();
@@ -185,13 +185,15 @@ void Font::Create(const char *faceName, int characterSet, int size, bool bold, b
     if (ea.GetCount())
         encoding = ea[0];
 
-    id = new wxFont(size,
+    wxFont* font = new wxFont(size,
                     wxDEFAULT,
                     italic ? wxITALIC :  wxNORMAL,
                     bold ? wxBOLD : wxNORMAL,
                     false,
                     stc2wx(faceName),
                     encoding);
+    font->SetNoAntiAliasing(!extraFontFlag);
+    id = font;
 }
 
 
@@ -445,42 +447,18 @@ void SurfaceImpl::DrawTextTransparent(PRectangle rc, Font &font, int ybase,
 
 void SurfaceImpl::MeasureWidths(Font &font, const char *s, int len, int *positions) {
 
-    wxString str = stc2wx(s, len);
+    wxString   str = stc2wx(s, len);
+    wxArrayInt tpos;
+
     SetFont(font);
 
-#ifndef __WXMAC__
+    hdc->GetPartialTextExtents(str, tpos);
-    // Calculate the position of each character based on the widths of
-    // the previous characters
-    int* tpos = new int[len+1];
-    int totalWidth = 0;
-    size_t i;
-    for (i=0; i<str.Length(); i++) {
-        int w, h;
-        hdc->GetTextExtent(str[i], &w, &h);
-        totalWidth += w;
-        tpos[i] = totalWidth;
-    }
-#else
-    // Instead of a running total, remeasure from the begining of the
-    // text for each character's position.  This is because with AA fonts
-    // on OS X widths can be fractions of pixels wide when more than one
-    // are drawn together, so the sum of all character widths is not necessarily
-    // (and probably not) the same as the whole string width.
-    int* tpos = new int[len+1];
-    size_t i;
-    for (i=0; i<str.Length(); i++) {
-        int w, h;
-        hdc->GetTextExtent(str.Left(i+1), &w, &h);
-        tpos[i] = w;
-    }
-#endif
-
 
 #if wxUSE_UNICODE
     // Map the widths for UCS-2 characters back to the UTF-8 input string
     // NOTE:  I don't think this is right for when sizeof(wxChar) > 2, ie wxGTK2
     // so figure it out and fix it!
-    i = 0;
+    size_t i = 0;
     size_t ui = 0;
     while ((int)i < len) {
         unsigned char uch = (unsigned char)s[i];
@@ -498,10 +476,8 @@ void SurfaceImpl::MeasureWidths(Font &font, const char *s, int len, int *positio
 #else
 
     // If not unicode then just use the widths we have
-    memcpy(positions, tpos, len * sizeof(*tpos));
+    memcpy(positions, tpos.begin(), len * sizeof(int));
 #endif
-
-    delete [] tpos;
 }
 
 

src/stc/ScintillaWX.cpp

@@ -160,6 +160,7 @@ void ScintillaWX::Initialise() {
     dropTarget->SetScintilla(this);
     stc->SetDropTarget(dropTarget);
 #endif
+    vs.extraFontFlag = true;
 }
 
 
@@ -907,5 +908,15 @@ void ScintillaWX::ClipChildren(wxDC& WXUNUSED(dc), PRectangle WXUNUSED(rect)) {
 }
 #endif
 
+
+void ScintillaWX::SetUseAntiAliasing(bool useAA) {
+    vs.extraFontFlag = useAA;
+    InvalidateStyleRedraw();
+}
+
+bool ScintillaWX::GetUseAntiAliasing() {
+    return vs.extraFontFlag;
+}
+ 
 //----------------------------------------------------------------------
 //----------------------------------------------------------------------

src/stc/ScintillaWX.h

@@ -164,6 +164,8 @@ public:
     void DoScrollToLine(int line);
     void DoScrollToColumn(int column);
     void ClipChildren(wxDC& dc, PRectangle rect);
+    void SetUseAntiAliasing(bool useAA);
+    bool GetUseAntiAliasing();
 
 private:
     bool                capturedMouse;

src/stc/stc.cpp

@@ -2230,6 +2230,14 @@ bool wxStyledTextCtrl::DoDropText(long x, long y, const wxString& data) {
 #endif
 
 
+void wxStyledTextCtrl::SetUseAntiAliasing(bool useAA) {
+    m_swx->SetUseAntiAliasing(useAA);
+}
+
+bool wxStyledTextCtrl::GetUseAntiAliasing() {
+    return m_swx->GetUseAntiAliasing();
+}
+
 //----------------------------------------------------------------------
 // Event handlers
 

src/stc/stc.cpp.in

@@ -392,6 +392,14 @@ bool wxStyledTextCtrl::DoDropText(long x, long y, const wxString& data) {
 #endif
 
 
+void wxStyledTextCtrl::SetUseAntiAliasing(bool useAA) {
+    m_swx->SetUseAntiAliasing(useAA);
+}
+
+bool wxStyledTextCtrl::GetUseAntiAliasing() {
+    return m_swx->GetUseAntiAliasing();
+}
+
 //----------------------------------------------------------------------
 // Event handlers
 

src/stc/stc.h.in

@@ -210,7 +210,14 @@ public:
     bool DoDropText(long x, long y, const wxString& data);
 #endif
 
+    // Specify whether anti-aliased fonts should be used.  Will have no effect
+    // on some platforms, but on some (wxMac for example) can greatly improve
+    // performance.
+    void SetUseAntiAliasing(bool useAA);
 
+    // Returns the current UseAntiAliasing setting.
+    bool GetUseAntiAliasing();
+    
 
 //----------------------------------------------------------------------