contrib/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 ViewStyle::ViewStyle() {
  21         Init();
  22 }
  23
  24 ViewStyle::ViewStyle(const ViewStyle &source) {
  25         Init();
  26         for (int sty=0;sty<=STYLE_MAX;sty++) {
  27                 styles[sty] = source.styles[sty];
  28         }
  29         for (int mrk=0;mrk<=MARKER_MAX;mrk++) {
  30                 markers[mrk] = source.markers[mrk];
  31         }
  32         for (int ind=0;ind<=INDIC_MAX;ind++) {
  33                 indicators[ind] = source.indicators[ind];
  34         }
  35
  36         selforeset = source.selforeset;
  37         selforeground.desired = source.selforeground.desired;
  38         selbackset = source.selbackset;
  39         selbackground.desired = source.selbackground.desired;
  40         selbar.desired = source.selbar.desired;
  41         selbarlight.desired = source.selbarlight.desired;
  42         caretcolour.desired = source.caretcolour.desired;
  43         edgecolour.desired = source.edgecolour.desired;
  44         leftMarginWidth = source.leftMarginWidth;
  45         rightMarginWidth = source.rightMarginWidth;
  46         for (int i=0;i < margins; i++) {
  47                 ms[i] = source.ms[i];
  48         }
  49         symbolMargin = source.symbolMargin;
  50         maskInLine = source.maskInLine;
  51         fixedColumnWidth = source.fixedColumnWidth;
  52         zoomLevel = source.zoomLevel;
  53         viewWhitespace = source.viewWhitespace;
  54         viewEOL = source.viewEOL;
  55         showMarkedLines = source.showMarkedLines;
  56 }
  57
  58 ViewStyle::~ViewStyle() {
  59 }
  60
  61 void ViewStyle::Init() {
  62         indicators[0].style = INDIC_SQUIGGLE;
  63         indicators[0].fore = Colour(0, 0x7f, 0);
  64         indicators[1].style = INDIC_TT;
  65         indicators[1].fore = Colour(0, 0, 0xff);
  66         indicators[2].style = INDIC_PLAIN;
  67         indicators[2].fore = Colour(0xff, 0, 0);
  68
  69         lineHeight = 1;
  70         maxAscent = 1;
  71         maxDescent = 1;
  72         aveCharWidth = 8;
  73         spaceWidth = 8;
  74
  75         selforeset = false;
  76         selforeground.desired = Colour(0xff, 0, 0);
  77         selbackset = true;
  78         selbackground.desired = Colour(0xc0, 0xc0, 0xc0);
  79         selbar.desired = Platform::Chrome();
  80         selbarlight.desired = Platform::ChromeHighlight();
  81         styles[STYLE_LINENUMBER].fore.desired = Colour(0, 0, 0);
  82         styles[STYLE_LINENUMBER].back.desired = Platform::Chrome();
  83         //caretcolour.desired = Colour(0xff, 0, 0);
  84         caretcolour.desired = Colour(0, 0, 0);
  85         edgecolour.desired = Colour(0xc0, 0xc0, 0xc0);
  86
  87         leftMarginWidth = 1;
  88         rightMarginWidth = 1;
  89         ms[0].symbol = false;
  90         ms[0].width = 0;
  91         ms[0].mask = 0;
  92         ms[1].symbol = true;
  93         ms[1].width = 16;
  94         ms[1].mask = ~SC_MASK_FOLDERS;
  95         ms[2].symbol = true;
  96         ms[2].width = 14;       // Nice width for arrows
  97         ms[2].mask = SC_MASK_FOLDERS;
  98         ms[2].width = 0;        // Nice width for arrows
  99         ms[2].mask = 0;
 100         fixedColumnWidth = leftMarginWidth;
 101         symbolMargin = false;
 102         maskInLine = 0xffffffff;
 103         for (int margin=0; margin < margins; margin++) {
 104                 fixedColumnWidth += ms[margin].width;
 105                 symbolMargin = symbolMargin || ms[margin].symbol;
 106                 if (ms[margin].width > 0)
 107                         maskInLine &= ~ms[margin].mask;
 108         }
 109         zoomLevel = 0;
 110         viewWhitespace = false;
 111         viewEOL = false;
 112         showMarkedLines = true;
 113 }
 114
 115 void ViewStyle::RefreshColourPalette(Palette &pal, bool want) {
 116         unsigned int i;
 117         for (i=0;i<(sizeof(styles)/sizeof(styles[0]));i++) {
 118                 pal.WantFind(styles[i].fore, want);
 119                 pal.WantFind(styles[i].back, want);
 120         }
 121         for (i=0;i<(sizeof(indicators)/sizeof(indicators[0]));i++) {
 122                 pal.WantFind(indicators[i].fore, want);
 123         }
 124         for (i=0;i<(sizeof(markers)/sizeof(markers[0]));i++) {
 125                 pal.WantFind(markers[i].fore, want);
 126                 pal.WantFind(markers[i].back, want);
 127         }
 128         pal.WantFind(selforeground, want);
 129         pal.WantFind(selbackground, want);
 130         pal.WantFind(selbar, want);
 131         pal.WantFind(selbarlight, want);
 132         pal.WantFind(caretcolour, want);
 133         pal.WantFind(edgecolour, want);
 134 }
 135
 136 void ViewStyle::Refresh(Surface &surface) {
 137         selbar.desired = Platform::Chrome();
 138         selbarlight.desired = Platform::ChromeHighlight();
 139         maxAscent = 1;
 140         maxDescent = 1;
 141         for (unsigned int i=0;i<(sizeof(styles)/sizeof(styles[0]));i++) {
 142                 styles[i].Realise(surface, zoomLevel);
 143                 if (maxAscent < styles[i].ascent)
 144                         maxAscent = styles[i].ascent;
 145                 if (maxDescent < styles[i].descent)
 146                         maxDescent = styles[i].descent;
 147         }
 148
 149         lineHeight = maxAscent + maxDescent;
 150         aveCharWidth = styles[STYLE_DEFAULT].aveCharWidth;
 151         spaceWidth = styles[STYLE_DEFAULT].spaceWidth;
 152
 153         fixedColumnWidth = leftMarginWidth;
 154         symbolMargin = false;
 155         maskInLine = 0xffffffff;
 156         for (int margin=0; margin < margins; margin++) {
 157                 fixedColumnWidth += ms[margin].width;
 158                 symbolMargin = symbolMargin || ms[margin].symbol;
 159                 if (ms[margin].width > 0)
 160                         maskInLine &= ~ms[margin].mask;
 161         }
 162 }
 163
 164 void ViewStyle::ResetDefaultStyle() {
 165         styles[STYLE_DEFAULT].Clear();
 166 }
 167
 168 void ViewStyle::ClearStyles() {
 169         // Reset all styles to be like the default style
 170         for (int i=0; i<=STYLE_MAX; i++) {
 171                 if (i != STYLE_DEFAULT) {
 172                         styles[i].Clear(
 173                                 styles[STYLE_DEFAULT].fore.desired,
 174                                 styles[STYLE_DEFAULT].back.desired,
 175                                 styles[STYLE_DEFAULT].size,
 176                                 styles[STYLE_DEFAULT].fontName,
 177                                 styles[STYLE_DEFAULT].bold,
 178                                 styles[STYLE_DEFAULT].italic);
 179                 }
 180         }
 181         styles[STYLE_LINENUMBER].back.desired = Platform::Chrome();
 182 }
 183