contrib/src/stc/scintilla/src/ViewStyle.cxx

   1 // Scintilla source code edit control
   2 /** @file ViewStyle.cxx
   3  ** Store information on how the document is to be viewed.
   4  **/
   5 // Copyright 1998-2003 by Neil Hodgson <neilh@scintilla.org>
   6 // The License.txt file describes the conditions under which this software may be distributed.
   7
   8 #include <string.h>
   9
  10 #include "Platform.h"
  11
  12 #include "Scintilla.h"
  13 #include "Indicator.h"
  14 #include "XPM.h"
  15 #include "LineMarker.h"
  16 #include "Style.h"
  17 #include "ViewStyle.h"
  18
  19 MarginStyle::MarginStyle() :
  20         symbol(false), width(16), mask(0xffffffff), sensitive(false) {
  21 }
  22
  23 // A list of the fontnames - avoids wasting space in each style
  24 FontNames::FontNames() {
  25         max = 0;
  26 }
  27
  28 FontNames::~FontNames() {
  29         Clear();
  30 }
  31
  32 void FontNames::Clear() {
  33         for (int i=0;i<max;i++) {
  34                 delete []names[i];
  35         }
  36         max = 0;
  37 }
  38
  39 const char *FontNames::Save(const char *name) {
  40         if (!name)
  41                 return 0;
  42         for (int i=0;i<max;i++) {
  43                 if (strcmp(names[i], name) == 0) {
  44                         return names[i];
  45                 }
  46         }
  47         names[max] = new char[strlen(name) + 1];
  48         strcpy(names[max], name);
  49         max++;
  50         return names[max-1];
  51 }
  52
  53 ViewStyle::ViewStyle() {
  54         Init();
  55 }
  56
  57 ViewStyle::ViewStyle(const ViewStyle &source) {
  58         Init();
  59         for (unsigned int sty=0;sty<(sizeof(styles)/sizeof(styles[0]));sty++) {
  60                 styles[sty] = source.styles[sty];
  61                 // Can't just copy fontname as its lifetime is relative to its owning ViewStyle
  62                 styles[sty].fontName = fontNames.Save(source.styles[sty].fontName);
  63         }
  64         for (int mrk=0;mrk<=MARKER_MAX;mrk++) {
  65                 markers[mrk] = source.markers[mrk];
  66         }
  67         for (int ind=0;ind<=INDIC_MAX;ind++) {
  68                 indicators[ind] = source.indicators[ind];
  69         }
  70
  71         selforeset = source.selforeset;
  72         selforeground.desired = source.selforeground.desired;
  73         selbackset = source.selbackset;
  74         selbackground.desired = source.selbackground.desired;
  75         selbackground2.desired = source.selbackground2.desired;
  76
  77         foldmarginColourSet = source.foldmarginColourSet;
  78         foldmarginColour.desired = source.foldmarginColour.desired;
  79         foldmarginHighlightColourSet = source.foldmarginHighlightColourSet;
  80         foldmarginHighlightColour.desired = source.foldmarginHighlightColour.desired;
  81
  82         hotspotForegroundSet = source.hotspotForegroundSet;
  83         hotspotForeground.desired = source.hotspotForeground.desired;
  84         hotspotBackgroundSet = source.hotspotBackgroundSet;
  85         hotspotBackground.desired = source.hotspotBackground.desired;
  86         hotspotUnderline = source.hotspotUnderline;
  87         hotspotSingleLine = source.hotspotSingleLine;
  88
  89         whitespaceForegroundSet = source.whitespaceForegroundSet;
  90         whitespaceForeground.desired = source.whitespaceForeground.desired;
  91         whitespaceBackgroundSet = source.whitespaceBackgroundSet;
  92         whitespaceBackground.desired = source.whitespaceBackground.desired;
  93         selbar.desired = source.selbar.desired;
  94         selbarlight.desired = source.selbarlight.desired;
  95         caretcolour.desired = source.caretcolour.desired;
  96         showCaretLineBackground = source.showCaretLineBackground;
  97         caretLineBackground.desired = source.caretLineBackground.desired;
  98         edgecolour.desired = source.edgecolour.desired;
  99         edgeState = source.edgeState;
 100         caretWidth = source.caretWidth;
 101         someStylesProtected = false;
 102         leftMarginWidth = source.leftMarginWidth;
 103         rightMarginWidth = source.rightMarginWidth;
 104         for (int i=0;i < margins; i++) {
 105                 ms[i] = source.ms[i];
 106         }
 107         symbolMargin = source.symbolMargin;
 108         maskInLine = source.maskInLine;
 109         fixedColumnWidth = source.fixedColumnWidth;
 110         zoomLevel = source.zoomLevel;
 111         viewWhitespace = source.viewWhitespace;
 112         viewIndentationGuides = source.viewIndentationGuides;
 113         viewEOL = source.viewEOL;
 114         showMarkedLines = source.showMarkedLines;
 115         extraFontFlag = source.extraFontFlag;
 116 }
 117
 118 ViewStyle::~ViewStyle() {
 119 }
 120
 121 void ViewStyle::Init() {
 122         fontNames.Clear();
 123         ResetDefaultStyle();
 124
 125         indicators[0].style = INDIC_SQUIGGLE;
 126         indicators[0].fore = ColourDesired(0, 0x7f, 0);
 127         indicators[1].style = INDIC_TT;
 128         indicators[1].fore = ColourDesired(0, 0, 0xff);
 129         indicators[2].style = INDIC_PLAIN;
 130         indicators[2].fore = ColourDesired(0xff, 0, 0);
 131
 132         lineHeight = 1;
 133         maxAscent = 1;
 134         maxDescent = 1;
 135         aveCharWidth = 8;
 136         spaceWidth = 8;
 137
 138         selforeset = false;
 139         selforeground.desired = ColourDesired(0xff, 0, 0);
 140         selbackset = true;
 141         selbackground.desired = ColourDesired(0xc0, 0xc0, 0xc0);
 142         selbackground2.desired = ColourDesired(0xb0, 0xb0, 0xb0);
 143
 144         foldmarginColourSet = false;
 145         foldmarginColour.desired = ColourDesired(0xff, 0, 0);
 146         foldmarginHighlightColourSet = false;
 147         foldmarginHighlightColour.desired = ColourDesired(0xc0, 0xc0, 0xc0);
 148
 149         whitespaceForegroundSet = false;
 150         whitespaceForeground.desired = ColourDesired(0, 0, 0);
 151         whitespaceBackgroundSet = false;
 152         whitespaceBackground.desired = ColourDesired(0xff, 0xff, 0xff);
 153         selbar.desired = Platform::Chrome();
 154         selbarlight.desired = Platform::ChromeHighlight();
 155         styles[STYLE_LINENUMBER].fore.desired = ColourDesired(0, 0, 0);
 156         styles[STYLE_LINENUMBER].back.desired = Platform::Chrome();
 157         caretcolour.desired = ColourDesired(0, 0, 0);
 158         showCaretLineBackground = false;
 159         caretLineBackground.desired = ColourDesired(0xff, 0xff, 0);
 160         edgecolour.desired = ColourDesired(0xc0, 0xc0, 0xc0);
 161         edgeState = EDGE_NONE;
 162         caretWidth = 1;
 163         someStylesProtected = false;
 164
 165         hotspotForegroundSet = false;
 166         hotspotForeground.desired = ColourDesired(0, 0, 0xff);
 167         hotspotBackgroundSet = false;
 168         hotspotBackground.desired = ColourDesired(0xff, 0xff, 0xff);
 169         hotspotUnderline = true;
 170         hotspotSingleLine = true;
 171
 172         leftMarginWidth = 1;
 173         rightMarginWidth = 1;
 174         ms[0].symbol = false;
 175         ms[0].width = 0;
 176         ms[0].mask = 0;
 177         ms[1].symbol = true;
 178         ms[1].width = 16;
 179         ms[1].mask = ~SC_MASK_FOLDERS;
 180         ms[2].symbol = true;
 181         ms[2].width = 0;
 182         ms[2].mask = 0;
 183         fixedColumnWidth = leftMarginWidth;
 184         symbolMargin = false;
 185         maskInLine = 0xffffffff;
 186         for (int margin=0; margin < margins; margin++) {
 187                 fixedColumnWidth += ms[margin].width;
 188                 symbolMargin = symbolMargin || ms[margin].symbol;
 189                 if (ms[margin].width > 0)
 190                         maskInLine &= ~ms[margin].mask;
 191         }
 192         zoomLevel = 0;
 193         viewWhitespace = wsInvisible;
 194         viewIndentationGuides = false;
 195         viewEOL = false;
 196         showMarkedLines = true;
 197         extraFontFlag = false;
 198 }
 199
 200 void ViewStyle::RefreshColourPalette(Palette &pal, bool want) {
 201         unsigned int i;
 202         for (i=0;i<(sizeof(styles)/sizeof(styles[0]));i++) {
 203                 pal.WantFind(styles[i].fore, want);
 204                 pal.WantFind(styles[i].back, want);
 205         }
 206         for (i=0;i<(sizeof(indicators)/sizeof(indicators[0]));i++) {
 207                 pal.WantFind(indicators[i].fore, want);
 208         }
 209         for (i=0;i<(sizeof(markers)/sizeof(markers[0]));i++) {
 210                 markers[i].RefreshColourPalette(pal, want);
 211         }
 212         pal.WantFind(selforeground, want);
 213         pal.WantFind(selbackground, want);
 214         pal.WantFind(selbackground2, want);
 215
 216         pal.WantFind(foldmarginColour, want);
 217         pal.WantFind(foldmarginHighlightColour, want);
 218
 219         pal.WantFind(whitespaceForeground, want);
 220         pal.WantFind(whitespaceBackground, want);
 221         pal.WantFind(selbar, want);
 222         pal.WantFind(selbarlight, want);
 223         pal.WantFind(caretcolour, want);
 224         pal.WantFind(caretLineBackground, want);
 225         pal.WantFind(edgecolour, want);
 226         pal.WantFind(hotspotForeground, want);
 227         pal.WantFind(hotspotBackground, want);
 228 }
 229
 230 void ViewStyle::Refresh(Surface &surface) {
 231         selbar.desired = Platform::Chrome();
 232         selbarlight.desired = Platform::ChromeHighlight();
 233         styles[STYLE_DEFAULT].Realise(surface, zoomLevel, NULL, extraFontFlag);
 234         maxAscent = styles[STYLE_DEFAULT].ascent;
 235         maxDescent = styles[STYLE_DEFAULT].descent;
 236         someStylesProtected = false;
 237         for (unsigned int i=0;i<(sizeof(styles)/sizeof(styles[0]));i++) {
 238                 if (i != STYLE_DEFAULT) {
 239                         styles[i].Realise(surface, zoomLevel, &styles[STYLE_DEFAULT], extraFontFlag);
 240                         if (maxAscent < styles[i].ascent)
 241                                 maxAscent = styles[i].ascent;
 242                         if (maxDescent < styles[i].descent)
 243                                 maxDescent = styles[i].descent;
 244                 }
 245                 if (styles[i].IsProtected()) {
 246                         someStylesProtected = true;
 247                 }
 248         }
 249
 250         lineHeight = maxAscent + maxDescent;
 251         aveCharWidth = styles[STYLE_DEFAULT].aveCharWidth;
 252         spaceWidth = styles[STYLE_DEFAULT].spaceWidth;
 253
 254         fixedColumnWidth = leftMarginWidth;
 255         symbolMargin = false;
 256         maskInLine = 0xffffffff;
 257         for (int margin=0; margin < margins; margin++) {
 258                 fixedColumnWidth += ms[margin].width;
 259                 symbolMargin = symbolMargin || ms[margin].symbol;
 260                 if (ms[margin].width > 0)
 261                         maskInLine &= ~ms[margin].mask;
 262         }
 263 }
 264
 265 void ViewStyle::ResetDefaultStyle() {
 266         styles[STYLE_DEFAULT].Clear(ColourDesired(0,0,0),
 267                 ColourDesired(0xff,0xff,0xff),
 268                 Platform::DefaultFontSize(), fontNames.Save(Platform::DefaultFont()),
 269                 SC_CHARSET_DEFAULT,
 270                 false, false, false, false, Style::caseMixed, true, true, false);
 271 }
 272
 273 void ViewStyle::ClearStyles() {
 274         // Reset all styles to be like the default style
 275         for (unsigned int i=0;i<(sizeof(styles)/sizeof(styles[0]));i++) {
 276                 if (i != STYLE_DEFAULT) {
 277                         styles[i].ClearTo(styles[STYLE_DEFAULT]);
 278                 }
 279         }
 280         styles[STYLE_LINENUMBER].back.desired = Platform::Chrome();
 281 }
 282
 283 void ViewStyle::SetStyleFontName(int styleIndex, const char *name) {
 284         styles[styleIndex].fontName = fontNames.Save(name);
 285 }
 286
 287 bool ViewStyle::ProtectionActive() const {
 288     return someStylesProtected;
 289 }