Initial copy of Scintilla 3.21 code

[wxWidgets.git] / src / stc / scintilla / src / Style.cxx

diff --git a/src/stc/scintilla/src/Style.cxx b/src/stc/scintilla/src/Style.cxx
index 4314dec0acff0d569dcc694b50d35a655383c4b1..375738c6799546f2d9d05f0099c94236790f574c 100644 (file)
--- a/src/stc/scintilla/src/Style.cxx
+++ b/src/stc/scintilla/src/Style.cxx
@@ -16,21 +16,56 @@
 using namespace Scintilla;
 #endif
 
-Style::Style() {
-       aliasOfDefaultFont = true;
+FontAlias::FontAlias() {
+}
+
+FontAlias::~FontAlias() {
+       SetID(0);
+       // ~Font will not release the actual font resource sine it is now 0
+}
+
+void FontAlias::MakeAlias(Font &fontOrigin) {
+       SetID(fontOrigin.GetID());
+}
+
+void FontAlias::ClearFont() {
+       SetID(0);
+}
+
+bool FontSpecification::EqualTo(const FontSpecification &other) const {
+       return weight == other.weight &&
+              italic == other.italic &&
+              size == other.size &&
+              characterSet == other.characterSet &&
+              fontName == other.fontName;
+}
+
+FontMeasurements::FontMeasurements() {
+       Clear();
+}
+
+void FontMeasurements::Clear() {
+       ascent = 1;
+       descent = 1;
+       aveCharWidth = 1;
+       spaceWidth = 1;
+       sizeZoomed = 2;
+}
+
+Style::Style() : FontSpecification() {
        Clear(ColourDesired(0, 0, 0), ColourDesired(0xff, 0xff, 0xff),
-             Platform::DefaultFontSize(), 0, SC_CHARSET_DEFAULT,
-             false, false, false, false, caseMixed, true, true, false);
+             Platform::DefaultFontSize() * SC_FONT_SIZE_MULTIPLIER, 0, SC_CHARSET_DEFAULT,
+             SC_WEIGHT_NORMAL, false, false, false, caseMixed, true, true, false);
 }
 
-Style::Style(const Style &source) {
+Style::Style(const Style &source) : FontSpecification(), FontMeasurements() {
        Clear(ColourDesired(0, 0, 0), ColourDesired(0xff, 0xff, 0xff),
              0, 0, 0,
-             false, false, false, false, caseMixed, true, true, false);
-       fore.desired = source.fore.desired;
-       back.desired = source.back.desired;
+             SC_WEIGHT_NORMAL, false, false, false, caseMixed, true, true, false);
+       fore = source.fore;
+       back = source.back;
        characterSet = source.characterSet;
-       bold = source.bold;
+       weight = source.weight;
        italic = source.italic;
        size = source.size;
        eolFilled = source.eolFilled;
@@ -42,11 +77,6 @@ Style::Style(const Style &source) {
 }
 
 Style::~Style() {
-       if (aliasOfDefaultFont)
-               font.SetID(0);
-       else
-               font.Release();
-       aliasOfDefaultFont = false;
 }
 
 Style &Style::operator=(const Style &source) {
@@ -54,11 +84,11 @@ Style &Style::operator=(const Style &source) {
                return * this;
        Clear(ColourDesired(0, 0, 0), ColourDesired(0xff, 0xff, 0xff),
              0, 0, SC_CHARSET_DEFAULT,
-             false, false, false, false, caseMixed, true, true, false);
-       fore.desired = source.fore.desired;
-       back.desired = source.back.desired;
+             SC_WEIGHT_NORMAL, false, false, false, caseMixed, true, true, false);
+       fore = source.fore;
+       back = source.back;
        characterSet = source.characterSet;
-       bold = source.bold;
+       weight = source.weight;
        italic = source.italic;
        size = source.size;
        eolFilled = source.eolFilled;
@@ -70,14 +100,14 @@ Style &Style::operator=(const Style &source) {
 }
 
 void Style::Clear(ColourDesired fore_, ColourDesired back_, int size_,
-                  const char *fontName_, int characterSet_,
-                  bool bold_, bool italic_, bool eolFilled_,
-                  bool underline_, ecaseForced caseForce_,
-                 bool visible_, bool changeable_, bool hotspot_) {
-       fore.desired = fore_;
-       back.desired = back_;
+        const char *fontName_, int characterSet_,
+        int weight_, bool italic_, bool eolFilled_,
+        bool underline_, ecaseForced caseForce_,
+        bool visible_, bool changeable_, bool hotspot_) {
+       fore = fore_;
+       back = back_;
        characterSet = characterSet_;
-       bold = bold_;
+       weight = weight_;
        italic = italic_;
        size = size_;
        fontName = fontName_;
@@ -87,72 +117,31 @@ void Style::Clear(ColourDesired fore_, ColourDesired back_, int size_,
        visible = visible_;
        changeable = changeable_;
        hotspot = hotspot_;
-       if (aliasOfDefaultFont)
-               font.SetID(0);
-       else
-               font.Release();
-       aliasOfDefaultFont = false;
+       font.ClearFont();
+       FontMeasurements::Clear();
 }
 
 void Style::ClearTo(const Style &source) {
        Clear(
-               source.fore.desired,
-               source.back.desired,
-               source.size,
-               source.fontName,
-               source.characterSet,
-               source.bold,
-               source.italic,
-               source.eolFilled,
-               source.underline,
-               source.caseForce,
-               source.visible,
-               source.changeable,
-               source.hotspot);
-}
-
-bool Style::EquivalentFontTo(const Style *other) const {
-       if (bold != other->bold ||
-               italic != other->italic ||
-               size != other->size ||
-               characterSet != other->characterSet)
-               return false;
-       if (fontName == other->fontName)
-               return true;
-       if (!fontName)
-               return false;
-       if (!other->fontName)
-               return false;
-       return strcmp(fontName, other->fontName) == 0;
+           source.fore,
+           source.back,
+           source.size,
+           source.fontName,
+           source.characterSet,
+           source.weight,
+           source.italic,
+           source.eolFilled,
+           source.underline,
+           source.caseForce,
+           source.visible,
+           source.changeable,
+           source.hotspot);
 }
 
-void Style::Realise(Surface &surface, int zoomLevel, Style *defaultStyle, int extraFontFlag) {
-       sizeZoomed = size + zoomLevel;
-       if (sizeZoomed <= 2)    // Hangs if sizeZoomed <= 1
-               sizeZoomed = 2;
-
-       if (aliasOfDefaultFont)
-               font.SetID(0);
-       else
-               font.Release();
-       int deviceHeight = surface.DeviceHeightFont(sizeZoomed);
-       aliasOfDefaultFont = defaultStyle &&
-                            (EquivalentFontTo(defaultStyle) || !fontName);
-       if (aliasOfDefaultFont) {
-               font.SetID(defaultStyle->font.GetID());
-       } else if (fontName) {
-               font.Create(fontName, characterSet, deviceHeight, bold, italic, extraFontFlag);
-       } else {
-               font.SetID(0);
-       }
-
-       ascent = surface.Ascent(font);
-       descent = surface.Descent(font);
-       // Probably more typographically correct to include leading
-       // but that means more complex drawing as leading must be erased
-       //lineHeight = surface.ExternalLeading() + surface.Height();
-       externalLeading = surface.ExternalLeading(font);
-       lineHeight = surface.Height(font);
-       aveCharWidth = surface.AverageCharWidth(font);
-       spaceWidth = surface.WidthChar(font, ' ');
+void Style::Copy(Font &font_, const FontMeasurements &fm_) {
+       font.MakeAlias(font_);
+#if PLAT_WX
+       font.SetAscent(fm_.ascent);
+#endif
+       (FontMeasurements &)(*this) = fm_;
 }