Initial import of qscintilla from 2007

1 files changed, 154 insertions, 0 deletions

diff --git a/src/Style.cpp b/src/Style.cpp
new file mode 100755
index 0000000..f01aee0
--- /dev/null
+++ b/src/Style.cpp
@@ -0,0 +1,154 @@
+// Scintilla source code edit control
+/** @file Style.cxx
+ ** Defines the font and colour style for a class of text.
+ **/
+// Copyright 1998-2001 by Neil Hodgson <neilh@scintilla.org>
+// The License.txt file describes the conditions under which this software may be distributed.
+
+#include <string.h>
+
+#include "Platform.h"
+
+#include "Scintilla.h"
+#include "Style.h"
+
+Style::Style() {
+	aliasOfDefaultFont = true;
+	Clear(ColourDesired(0, 0, 0), ColourDesired(0xff, 0xff, 0xff),
+	      Platform::DefaultFontSize(), 0, SC_CHARSET_DEFAULT,
+	      false, false, false, false, caseMixed, true, true, false);
+}
+
+Style::Style(const Style &source) {
+	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;
+	characterSet = source.characterSet;
+	bold = source.bold;
+	italic = source.italic;
+	size = source.size;
+	eolFilled = source.eolFilled;
+	underline = source.underline;
+	caseForce = source.caseForce;
+	visible = source.visible;
+	changeable = source.changeable;
+	hotspot = source.hotspot;
+}
+
+Style::~Style() {
+	if (aliasOfDefaultFont)
+		font.SetID(0);
+	else
+		font.Release();
+	aliasOfDefaultFont = false;
+}
+
+Style &Style::operator=(const Style &source) {
+	if (this == &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;
+	characterSet = source.characterSet;
+	bold = source.bold;
+	italic = source.italic;
+	size = source.size;
+	eolFilled = source.eolFilled;
+	underline = source.underline;
+	caseForce = source.caseForce;
+	visible = source.visible;
+	changeable = source.changeable;
+	return *this;
+}
+
+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_;
+	characterSet = characterSet_;
+	bold = bold_;
+	italic = italic_;
+	size = size_;
+	fontName = fontName_;
+	eolFilled = eolFilled_;
+	underline = underline_;
+	caseForce = caseForce_;
+	visible = visible_;
+	changeable = changeable_;
+	hotspot = hotspot_;
+	if (aliasOfDefaultFont)
+		font.SetID(0);
+	else
+		font.Release();
+	aliasOfDefaultFont = false;
+}
+
+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;
+}
+
+void Style::Realise(Surface &surface, int zoomLevel, Style *defaultStyle, bool 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, ' ');
+}