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notepad-plus-plus/scintilla/src/ViewStyle.cxx

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// Scintilla source code edit control
/** @file ViewStyle.cxx
** Store information on how the document is to be viewed.
**/
// Copyright 1998-2003 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 "SplitVector.h"
#include "Partitioning.h"
#include "RunStyles.h"
#include "Indicator.h"
#include "XPM.h"
#include "LineMarker.h"
#include "Style.h"
#include "ViewStyle.h"
#ifdef SCI_NAMESPACE
using namespace Scintilla;
#endif
MarginStyle::MarginStyle() :
style(SC_MARGIN_SYMBOL), width(0), mask(0), sensitive(false) {
}
// A list of the fontnames - avoids wasting space in each style
FontNames::FontNames() {
size = 8;
names = new char *[size];
max = 0;
}
FontNames::~FontNames() {
Clear();
delete []names;
names = 0;
}
void FontNames::Clear() {
for (int i=0;i<max;i++) {
delete []names[i];
}
max = 0;
}
const char *FontNames::Save(const char *name) {
if (!name)
return 0;
for (int i=0;i<max;i++) {
if (strcmp(names[i], name) == 0) {
return names[i];
}
}
if (max >= size) {
// Grow array
int sizeNew = size * 2;
char **namesNew = new char *[sizeNew];
for (int j=0;j<max;j++) {
namesNew[j] = names[j];
}
delete []names;
names = namesNew;
size = sizeNew;
}
names[max] = new char[strlen(name) + 1];
strcpy(names[max], name);
max++;
return names[max-1];
}
ViewStyle::ViewStyle() {
Init();
}
ViewStyle::ViewStyle(const ViewStyle &source) {
Init(source.stylesSize);
for (unsigned int sty=0;sty<source.stylesSize;sty++) {
styles[sty] = source.styles[sty];
// Can't just copy fontname as its lifetime is relative to its owning ViewStyle
styles[sty].fontName = fontNames.Save(source.styles[sty].fontName);
}
for (int mrk=0;mrk<=MARKER_MAX;mrk++) {
markers[mrk] = source.markers[mrk];
}
for (int ind=0;ind<=INDIC_MAX;ind++) {
indicators[ind] = source.indicators[ind];
}
selforeset = source.selforeset;
selforeground.desired = source.selforeground.desired;
selbackset = source.selbackset;
selbackground.desired = source.selbackground.desired;
selbackground2.desired = source.selbackground2.desired;
selAlpha = source.selAlpha;
selEOLFilled = source.selEOLFilled;
foldmarginColourSet = source.foldmarginColourSet;
foldmarginColour.desired = source.foldmarginColour.desired;
foldmarginHighlightColourSet = source.foldmarginHighlightColourSet;
foldmarginHighlightColour.desired = source.foldmarginHighlightColour.desired;
hotspotForegroundSet = source.hotspotForegroundSet;
hotspotForeground.desired = source.hotspotForeground.desired;
hotspotBackgroundSet = source.hotspotBackgroundSet;
hotspotBackground.desired = source.hotspotBackground.desired;
hotspotUnderline = source.hotspotUnderline;
hotspotSingleLine = source.hotspotSingleLine;
whitespaceForegroundSet = source.whitespaceForegroundSet;
whitespaceForeground.desired = source.whitespaceForeground.desired;
whitespaceBackgroundSet = source.whitespaceBackgroundSet;
whitespaceBackground.desired = source.whitespaceBackground.desired;
selbar.desired = source.selbar.desired;
selbarlight.desired = source.selbarlight.desired;
caretcolour.desired = source.caretcolour.desired;
showCaretLineBackground = source.showCaretLineBackground;
showCaretLineBackgroundAlways = source.showCaretLineBackgroundAlways;
caretLineBackground.desired = source.caretLineBackground.desired;
caretLineAlpha = source.caretLineAlpha;
edgecolour.desired = source.edgecolour.desired;
edgeState = source.edgeState;
caretStyle = source.caretStyle;
caretWidth = source.caretWidth;
someStylesProtected = false;
leftMarginWidth = source.leftMarginWidth;
rightMarginWidth = source.rightMarginWidth;
for (int i=0;i < margins; i++) {
ms[i] = source.ms[i];
}
symbolMargin = source.symbolMargin;
maskInLine = source.maskInLine;
fixedColumnWidth = source.fixedColumnWidth;
zoomLevel = source.zoomLevel;
viewWhitespace = source.viewWhitespace;
viewIndentationGuides = source.viewIndentationGuides;
viewEOL = source.viewEOL;
showMarkedLines = source.showMarkedLines;
extraFontFlag = source.extraFontFlag;
}
ViewStyle::~ViewStyle() {
delete []styles;
styles = NULL;
}
void ViewStyle::Init(size_t stylesSize_) {
stylesSize = 0;
styles = NULL;
AllocStyles(stylesSize_);
fontNames.Clear();
ResetDefaultStyle();
indicators[0].style = INDIC_SQUIGGLE;
indicators[0].under = false;
indicators[0].fore = ColourDesired(0, 0x7f, 0);
indicators[1].style = INDIC_TT;
indicators[1].under = false;
indicators[1].fore = ColourDesired(0, 0, 0xff);
indicators[2].style = INDIC_PLAIN;
indicators[2].under = false;
indicators[2].fore = ColourDesired(0xff, 0, 0);
lineHeight = 1;
maxAscent = 1;
maxDescent = 1;
aveCharWidth = 8;
spaceWidth = 8;
selforeset = false;
selforeground.desired = ColourDesired(0xff, 0, 0);
selbackset = true;
selbackground.desired = ColourDesired(0xc0, 0xc0, 0xc0);
selbackground2.desired = ColourDesired(0xb0, 0xb0, 0xb0);
selAlpha = SC_ALPHA_NOALPHA;
selEOLFilled = false;
foldmarginColourSet = false;
foldmarginColour.desired = ColourDesired(0xff, 0, 0);
foldmarginHighlightColourSet = false;
foldmarginHighlightColour.desired = ColourDesired(0xc0, 0xc0, 0xc0);
whitespaceForegroundSet = false;
whitespaceForeground.desired = ColourDesired(0, 0, 0);
whitespaceBackgroundSet = false;
whitespaceBackground.desired = ColourDesired(0xff, 0xff, 0xff);
selbar.desired = Platform::Chrome();
selbarlight.desired = Platform::ChromeHighlight();
styles[STYLE_LINENUMBER].fore.desired = ColourDesired(0, 0, 0);
styles[STYLE_LINENUMBER].back.desired = Platform::Chrome();
caretcolour.desired = ColourDesired(0, 0, 0);
showCaretLineBackground = false;
showCaretLineBackgroundAlways = false;
caretLineBackground.desired = ColourDesired(0xff, 0xff, 0);
caretLineAlpha = SC_ALPHA_NOALPHA;
edgecolour.desired = ColourDesired(0xc0, 0xc0, 0xc0);
edgeState = EDGE_NONE;
caretStyle = CARETSTYLE_LINE;
caretWidth = 1;
someStylesProtected = false;
hotspotForegroundSet = false;
hotspotForeground.desired = ColourDesired(0, 0, 0xff);
hotspotBackgroundSet = false;
hotspotBackground.desired = ColourDesired(0xff, 0xff, 0xff);
hotspotUnderline = true;
hotspotSingleLine = true;
leftMarginWidth = 1;
rightMarginWidth = 1;
ms[0].style = SC_MARGIN_NUMBER;
ms[0].width = 0;
ms[0].mask = 0;
ms[1].style = SC_MARGIN_SYMBOL;
ms[1].width = 16;
ms[1].mask = ~SC_MASK_FOLDERS;
ms[2].style = SC_MARGIN_SYMBOL;
ms[2].width = 0;
ms[2].mask = 0;
fixedColumnWidth = leftMarginWidth;
symbolMargin = false;
maskInLine = 0xffffffff;
for (int margin=0; margin < margins; margin++) {
fixedColumnWidth += ms[margin].width;
symbolMargin = symbolMargin || (ms[margin].style != SC_MARGIN_NUMBER);
if (ms[margin].width > 0)
maskInLine &= ~ms[margin].mask;
}
zoomLevel = 0;
viewWhitespace = wsInvisible;
viewIndentationGuides = ivNone;
viewEOL = false;
showMarkedLines = true;
extraFontFlag = false;
}
void ViewStyle::RefreshColourPalette(Palette &pal, bool want) {
unsigned int i;
for (i=0;i<stylesSize;i++) {
pal.WantFind(styles[i].fore, want);
pal.WantFind(styles[i].back, want);
}
for (i=0;i<(sizeof(indicators)/sizeof(indicators[0]));i++) {
pal.WantFind(indicators[i].fore, want);
}
for (i=0;i<(sizeof(markers)/sizeof(markers[0]));i++) {
markers[i].RefreshColourPalette(pal, want);
}
pal.WantFind(selforeground, want);
pal.WantFind(selbackground, want);
pal.WantFind(selbackground2, want);
pal.WantFind(foldmarginColour, want);
pal.WantFind(foldmarginHighlightColour, want);
pal.WantFind(whitespaceForeground, want);
pal.WantFind(whitespaceBackground, want);
pal.WantFind(selbar, want);
pal.WantFind(selbarlight, want);
pal.WantFind(caretcolour, want);
pal.WantFind(caretLineBackground, want);
pal.WantFind(edgecolour, want);
pal.WantFind(hotspotForeground, want);
pal.WantFind(hotspotBackground, want);
}
void ViewStyle::Refresh(Surface &surface) {
selbar.desired = Platform::Chrome();
selbarlight.desired = Platform::ChromeHighlight();
styles[STYLE_DEFAULT].Realise(surface, zoomLevel, NULL, extraFontFlag);
maxAscent = styles[STYLE_DEFAULT].ascent;
maxDescent = styles[STYLE_DEFAULT].descent;
someStylesProtected = false;
for (unsigned int i=0; i<stylesSize; i++) {
if (i != STYLE_DEFAULT) {
styles[i].Realise(surface, zoomLevel, &styles[STYLE_DEFAULT], extraFontFlag);
if (maxAscent < styles[i].ascent)
maxAscent = styles[i].ascent;
if (maxDescent < styles[i].descent)
maxDescent = styles[i].descent;
}
if (styles[i].IsProtected()) {
someStylesProtected = true;
}
}
lineHeight = maxAscent + maxDescent;
aveCharWidth = styles[STYLE_DEFAULT].aveCharWidth;
spaceWidth = styles[STYLE_DEFAULT].spaceWidth;
fixedColumnWidth = leftMarginWidth;
symbolMargin = false;
maskInLine = 0xffffffff;
for (int margin=0; margin < margins; margin++) {
fixedColumnWidth += ms[margin].width;
symbolMargin = symbolMargin || (ms[margin].style != SC_MARGIN_NUMBER);
if (ms[margin].width > 0)
maskInLine &= ~ms[margin].mask;
}
}
void ViewStyle::AllocStyles(size_t sizeNew) {
Style *stylesNew = new Style[sizeNew];
size_t i=0;
for (; i<stylesSize; i++) {
stylesNew[i] = styles[i];
stylesNew[i].fontName = styles[i].fontName;
}
if (stylesSize > STYLE_DEFAULT) {
for (; i<sizeNew; i++) {
if (i != STYLE_DEFAULT) {
stylesNew[i].ClearTo(styles[STYLE_DEFAULT]);
}
}
}
delete []styles;
styles = stylesNew;
stylesSize = sizeNew;
}
void ViewStyle::EnsureStyle(size_t index) {
if (index >= stylesSize) {
size_t sizeNew = stylesSize * 2;
while (sizeNew < index)
sizeNew *= 2;
AllocStyles(sizeNew);
}
}
void ViewStyle::ResetDefaultStyle() {
styles[STYLE_DEFAULT].Clear(ColourDesired(0,0,0),
ColourDesired(0xff,0xff,0xff),
Platform::DefaultFontSize(), fontNames.Save(Platform::DefaultFont()),
SC_CHARSET_DEFAULT,
false, false, false, false, Style::caseMixed, true, true, false);
}
void ViewStyle::ClearStyles() {
// Reset all styles to be like the default style
for (unsigned int i=0; i<stylesSize; i++) {
if (i != STYLE_DEFAULT) {
styles[i].ClearTo(styles[STYLE_DEFAULT]);
}
}
styles[STYLE_LINENUMBER].back.desired = Platform::Chrome();
// Set call tip fore/back to match the values previously set for call tips
styles[STYLE_CALLTIP].back.desired = ColourDesired(0xff, 0xff, 0xff);
styles[STYLE_CALLTIP].fore.desired = ColourDesired(0x80, 0x80, 0x80);
}
void ViewStyle::SetStyleFontName(int styleIndex, const char *name) {
styles[styleIndex].fontName = fontNames.Save(name);
}
bool ViewStyle::ProtectionActive() const {
return someStylesProtected;
}