scintilla/src/EditModel.cxx

   1 // Scintilla source code edit control
   2 /** @file EditModel.cxx
   3  ** Defines the editor state that must be visible to EditorView.
   4  **/
   5 // Copyright 1998-2014 by Neil Hodgson <neilh@scintilla.org>
   6 // The License.txt file describes the conditions under which this software may be distributed.
   7
   8 #include <cstddef>
   9 #include <cstdlib>
  10 #include <cassert>
  11 #include <cstring>
  12 #include <cmath>
  13
  14 #include <stdexcept>
  15 #include <string>
  16 #include <vector>
  17 #include <map>
  18 #include <algorithm>
  19 #include <memory>
  20
  21 #include "Platform.h"
  22
  23 #include "ILoader.h"
  24 #include "ILexer.h"
  25 #include "Scintilla.h"
  26
  27 #include "CharacterCategory.h"
  28
  29 #include "Position.h"
  30 #include "UniqueString.h"
  31 #include "SplitVector.h"
  32 #include "Partitioning.h"
  33 #include "RunStyles.h"
  34 #include "ContractionState.h"
  35 #include "CellBuffer.h"
  36 #include "KeyMap.h"
  37 #include "Indicator.h"
  38 #include "LineMarker.h"
  39 #include "Style.h"
  40 #include "ViewStyle.h"
  41 #include "CharClassify.h"
  42 #include "Decoration.h"
  43 #include "CaseFolder.h"
  44 #include "Document.h"
  45 #include "UniConversion.h"
  46 #include "Selection.h"
  47 #include "PositionCache.h"
  48 #include "EditModel.h"
  49
  50 using namespace Scintilla;
  51
  52 Caret::Caret() :
  53         active(false), on(false), period(500) {}
  54
  55 EditModel::EditModel() : braces{} {
  56         inOverstrike = false;
  57         xOffset = 0;
  58         trackLineWidth = false;
  59         posDrag = SelectionPosition(Sci::invalidPosition);
  60         braces[0] = Sci::invalidPosition;
  61         braces[1] = Sci::invalidPosition;
  62         bracesMatchStyle = STYLE_BRACEBAD;
  63         highlightGuideColumn = 0;
  64         primarySelection = true;
  65         imeInteraction = imeWindowed;
  66         foldFlags = 0;
  67         foldDisplayTextStyle = SC_FOLDDISPLAYTEXT_HIDDEN;
  68         hotspot = Range(Sci::invalidPosition);
  69         hoverIndicatorPos = Sci::invalidPosition;
  70         wrapWidth = LineLayout::wrapWidthInfinite;
  71         pdoc = new Document(SC_DOCUMENTOPTION_DEFAULT);
  72         pdoc->AddRef();
  73         pcs = ContractionStateCreate(pdoc->IsLarge());
  74 }
  75
  76 EditModel::~EditModel() {
  77         pdoc->Release();
  78         pdoc = nullptr;
  79 }
  80
  81 void EditModel::SetDefaultFoldDisplayText(const char *text) {
  82         defaultFoldDisplayText = IsNullOrEmpty(text) ? UniqueString() : UniqueStringCopy(text);
  83 }
  84
  85 const char *EditModel::GetDefaultFoldDisplayText() const noexcept {
  86         return defaultFoldDisplayText.get();
  87 }
  88
  89 const char *EditModel::GetFoldDisplayText(Sci::Line lineDoc) const {
  90         if (foldDisplayTextStyle == SC_FOLDDISPLAYTEXT_HIDDEN || pcs->GetExpanded(lineDoc)) {
  91                 return nullptr;
  92         }
  93
  94         const char *text = pcs->GetFoldDisplayText(lineDoc);
  95         return text ? text : defaultFoldDisplayText.get();
  96 }
  97