src/stc/scintilla/src/ViewStyle.cxx

   1 // Scintilla source code edit control
   2 // ViewStyle.cxx - store information on how the document is to be viewed
   3 // Copyright 1998-2000 by Neil Hodgson <neilh@scintilla.org>
   4 // The License.txt file describes the conditions under which this software may be distributed.
   5
   6 #include <string.h>
   7
   8 #include "Platform.h"
   9
  10 #include "Scintilla.h"
  11 #include "Indicator.h"
  12 #include "LineMarker.h"
  13 #include "Style.h"
  14 #include "ViewStyle.h"
  15
  16 MarginStyle::MarginStyle() :
  17         symbol(false), width(16), mask(0xffffffff), sensitive(false) {
  18 }
  19
  20 // A list of the fontnames - avoids wasting space in each style
  21 FontNames::FontNames() {
  22         max = 0;
  23 }
  24
  25 FontNames::~FontNames() {
  26         Clear();
  27 }
  28
  29 void FontNames::Clear() {
  30         for (int i=0;i<max;i++) {
  31                 delete []names[i];
  32         }
  33         max = 0;
  34 }
  35
  36 const char *FontNames::Save(const char *name) {
  37         if (!name)
  38                 return 0;
  39         for (int i=0;i<max;i++) {
  40                 if (strcmp(names[i], name) == 0) {
  41                         return names[i];
  42                 }
  43         }
  44         names[max] = new char[strlen(name) + 1];
  45         strcpy(names[max], name);
  46         max++;
  47         return names[max-1];
  48 }
  49
  50 ViewStyle::ViewStyle() {
  51         Init();
  52 }
  53
  54 ViewStyle::ViewStyle(const ViewStyle &source) {
  55         Init();
  56         for (unsigned int sty=0;sty<(sizeof(styles)/sizeof(styles[0]));sty++) {
  57                 styles[sty] = source.styles[sty];
  58                 // Can't just copy fontname as its lifetime is relative to its owning ViewStyle
  59                 styles[sty].fontName = fontNames.Save(source.styles[sty].fontName);
  60         }
  61         for (int mrk=0;mrk<=MARKER_MAX;mrk++) {
  62                 markers[mrk] = source.markers[mrk];
  63         }
  64         for (int ind=0;ind<=INDIC_MAX;ind++) {
  65                 indicators[ind] = source.indicators[ind];
  66         }
  67
  68         selforeset = source.selforeset;
  69         selforeground.desired = source.selforeground.desired;
  70         selbackset = source.selbackset;
  71         selbackground.desired = source.selbackground.desired;
  72         selbackground2.desired = source.selbackground2.desired;
  73         selbar.desired = source.selbar.desired;
  74         selbarlight.desired = source.selbarlight.desired;
  75         caretcolour.desired = source.caretcolour.desired;
  76         edgecolour.desired = source.edgecolour.desired;
  77         edgeState = source.edgeState;
  78         leftMarginWidth = source.leftMarginWidth;
  79         rightMarginWidth = source.rightMarginWidth;
  80         for (int i=0;i < margins; i++) {
  81                 ms[i] = source.ms[i];
  82         }
  83         symbolMargin = source.symbolMargin;
  84         maskInLine = source.maskInLine;
  85         fixedColumnWidth = source.fixedColumnWidth;
  86         zoomLevel = source.zoomLevel;
  87         viewWhitespace = source.viewWhitespace;
  88         viewIndentationGuides = source.viewIndentationGuides;
  89         viewEOL = source.viewEOL;
  90         showMarkedLines = source.showMarkedLines;
  91 }
  92
  93 ViewStyle::~ViewStyle() {
  94 }
  95
  96 void ViewStyle::Init() {
  97         fontNames.Clear();
  98         ResetDefaultStyle();
  99
 100         indicators[0].style = INDIC_SQUIGGLE;
 101         indicators[0].fore = Colour(0, 0x7f, 0);
 102         indicators[1].style = INDIC_TT;
 103         indicators[1].fore = Colour(0, 0, 0xff);
 104         indicators[2].style = INDIC_PLAIN;
 105         indicators[2].fore = Colour(0xff, 0, 0);
 106
 107         lineHeight = 1;
 108         maxAscent = 1;
 109         maxDescent = 1;
 110         aveCharWidth = 8;
 111         spaceWidth = 8;
 112
 113         selforeset = false;
 114         selforeground.desired = Colour(0xff, 0, 0);
 115         selbackset = true;
 116         selbackground.desired = Colour(0xc0, 0xc0, 0xc0);
 117         selbackground2.desired = Colour(0xb0, 0xb0, 0xb0);
 118         selbar.desired = Platform::Chrome();
 119         selbarlight.desired = Platform::ChromeHighlight();
 120         styles[STYLE_LINENUMBER].fore.desired = Colour(0, 0, 0);
 121         styles[STYLE_LINENUMBER].back.desired = Platform::Chrome();
 122         //caretcolour.desired = Colour(0xff, 0, 0);
 123         caretcolour.desired = Colour(0, 0, 0);
 124         edgecolour.desired = Colour(0xc0, 0xc0, 0xc0);
 125         edgeState = EDGE_NONE;
 126
 127         leftMarginWidth = 1;
 128         rightMarginWidth = 1;
 129         ms[0].symbol = false;
 130         ms[0].width = 0;
 131         ms[0].mask = 0;
 132         ms[1].symbol = true;
 133         ms[1].width = 16;
 134         ms[1].mask = ~SC_MASK_FOLDERS;
 135         ms[2].symbol = true;
 136         ms[2].width = 14;       // Nice width for arrows
 137         ms[2].mask = SC_MASK_FOLDERS;
 138         ms[2].width = 0;        // Nice width for arrows
 139         ms[2].mask = 0;
 140         fixedColumnWidth = leftMarginWidth;
 141         symbolMargin = false;
 142         maskInLine = 0xffffffff;
 143         for (int margin=0; margin < margins; margin++) {
 144                 fixedColumnWidth += ms[margin].width;
 145                 symbolMargin = symbolMargin || ms[margin].symbol;
 146                 if (ms[margin].width > 0)
 147                         maskInLine &= ~ms[margin].mask;
 148         }
 149         zoomLevel = 0;
 150         viewWhitespace = wsInvisible;
 151         viewIndentationGuides = false;
 152         viewEOL = false;
 153         showMarkedLines = true;
 154 }
 155
 156 void ViewStyle::RefreshColourPalette(Palette &pal, bool want) {
 157         unsigned int i;
 158         for (i=0;i<(sizeof(styles)/sizeof(styles[0]));i++) {
 159                 pal.WantFind(styles[i].fore, want);
 160                 pal.WantFind(styles[i].back, want);
 161         }
 162         for (i=0;i<(sizeof(indicators)/sizeof(indicators[0]));i++) {
 163                 pal.WantFind(indicators[i].fore, want);
 164         }
 165         for (i=0;i<(sizeof(markers)/sizeof(markers[0]));i++) {
 166                 pal.WantFind(markers[i].fore, want);
 167                 pal.WantFind(markers[i].back, want);
 168         }
 169         pal.WantFind(selforeground, want);
 170         pal.WantFind(selbackground, want);
 171         pal.WantFind(selbackground2, want);
 172         pal.WantFind(selbar, want);
 173         pal.WantFind(selbarlight, want);
 174         pal.WantFind(caretcolour, want);
 175         pal.WantFind(edgecolour, want);
 176 }
 177
 178 void ViewStyle::Refresh(Surface &surface) {
 179         selbar.desired = Platform::Chrome();
 180         selbarlight.desired = Platform::ChromeHighlight();
 181         styles[STYLE_DEFAULT].Realise(surface, zoomLevel);
 182         maxAscent = styles[STYLE_DEFAULT].ascent;
 183         maxDescent = styles[STYLE_DEFAULT].descent;
 184         for (unsigned int i=0;i<(sizeof(styles)/sizeof(styles[0]));i++) {
 185                 if (i != STYLE_DEFAULT) {
 186                         styles[i].Realise(surface, zoomLevel, &styles[STYLE_DEFAULT]);
 187                         if (maxAscent < styles[i].ascent)
 188                                 maxAscent = styles[i].ascent;
 189                         if (maxDescent < styles[i].descent)
 190                                 maxDescent = styles[i].descent;
 191                 }
 192         }
 193
 194         lineHeight = maxAscent + maxDescent;
 195         aveCharWidth = styles[STYLE_DEFAULT].aveCharWidth;
 196         spaceWidth = styles[STYLE_DEFAULT].spaceWidth;
 197
 198         fixedColumnWidth = leftMarginWidth;
 199         symbolMargin = false;
 200         maskInLine = 0xffffffff;
 201         for (int margin=0; margin < margins; margin++) {
 202                 fixedColumnWidth += ms[margin].width;
 203                 symbolMargin = symbolMargin || ms[margin].symbol;
 204                 if (ms[margin].width > 0)
 205                         maskInLine &= ~ms[margin].mask;
 206         }
 207 }
 208
 209 void ViewStyle::ResetDefaultStyle() {
 210         styles[STYLE_DEFAULT].Clear(Colour(0,0,0), Colour(0xff,0xff,0xff),
 211                 Platform::DefaultFontSize(), fontNames.Save(Platform::DefaultFont()),
 212                 SC_CHARSET_DEFAULT,
 213                 false, false, false, false, true);
 214 }
 215
 216 void ViewStyle::ClearStyles() {
 217         // Reset all styles to be like the default style
 218         for (unsigned int i=0;i<(sizeof(styles)/sizeof(styles[0]));i++) {
 219                 if (i != STYLE_DEFAULT) {
 220                         styles[i].Clear(
 221                                 styles[STYLE_DEFAULT].fore.desired,
 222                                 styles[STYLE_DEFAULT].back.desired,
 223                                 styles[STYLE_DEFAULT].size,
 224                                 styles[STYLE_DEFAULT].fontName,
 225                                 styles[STYLE_DEFAULT].characterSet,
 226                                 styles[STYLE_DEFAULT].bold,
 227                                 styles[STYLE_DEFAULT].italic,
 228                                 styles[STYLE_DEFAULT].eolFilled,
 229                                 styles[STYLE_DEFAULT].underline,
 230                                 styles[STYLE_DEFAULT].visible);
 231                 }
 232         }
 233         styles[STYLE_LINENUMBER].back.desired = Platform::Chrome();
 234 }
 235
 236 void ViewStyle::SetStyleFontName(int styleIndex, const char *name) {
 237         styles[styleIndex].fontName = fontNames.Save(name);
 238 }