471 lines
16 KiB
C++
471 lines
16 KiB
C++
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// Scintilla source code edit control
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/** @file MarginView.cxx
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** Defines the appearance of the editor margin.
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**/
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// Copyright 1998-2014 by Neil Hodgson <neilh@scintilla.org>
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// The License.txt file describes the conditions under which this software may be distributed.
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include <math.h>
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#include <assert.h>
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#include <ctype.h>
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#include <stdexcept>
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#include <string>
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#include <vector>
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#include <map>
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#include <algorithm>
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#include <memory>
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#include "Platform.h"
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#include "ILexer.h"
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#include "Scintilla.h"
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#include "StringCopy.h"
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#include "SplitVector.h"
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#include "Partitioning.h"
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#include "RunStyles.h"
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#include "ContractionState.h"
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#include "CellBuffer.h"
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#include "KeyMap.h"
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#include "Indicator.h"
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#include "XPM.h"
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#include "LineMarker.h"
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#include "Style.h"
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#include "ViewStyle.h"
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#include "CharClassify.h"
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#include "Decoration.h"
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#include "CaseFolder.h"
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#include "Document.h"
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#include "UniConversion.h"
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#include "Selection.h"
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#include "PositionCache.h"
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#include "EditModel.h"
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#include "MarginView.h"
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#include "EditView.h"
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#ifdef SCI_NAMESPACE
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using namespace Scintilla;
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#endif
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#ifdef SCI_NAMESPACE
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namespace Scintilla {
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#endif
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void DrawWrapMarker(Surface *surface, PRectangle rcPlace,
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bool isEndMarker, ColourDesired wrapColour) {
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surface->PenColour(wrapColour);
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enum { xa = 1 }; // gap before start
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int w = static_cast<int>(rcPlace.right - rcPlace.left) - xa - 1;
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bool xStraight = isEndMarker; // x-mirrored symbol for start marker
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int x0 = static_cast<int>(xStraight ? rcPlace.left : rcPlace.right - 1);
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int y0 = static_cast<int>(rcPlace.top);
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int dy = static_cast<int>(rcPlace.bottom - rcPlace.top) / 5;
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int y = static_cast<int>(rcPlace.bottom - rcPlace.top) / 2 + dy;
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struct Relative {
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Surface *surface;
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int xBase;
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int xDir;
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int yBase;
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int yDir;
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void MoveTo(int xRelative, int yRelative) {
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surface->MoveTo(xBase + xDir * xRelative, yBase + yDir * yRelative);
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}
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void LineTo(int xRelative, int yRelative) {
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surface->LineTo(xBase + xDir * xRelative, yBase + yDir * yRelative);
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}
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};
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Relative rel = { surface, x0, xStraight ? 1 : -1, y0, 1 };
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// arrow head
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rel.MoveTo(xa, y);
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rel.LineTo(xa + 2 * w / 3, y - dy);
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rel.MoveTo(xa, y);
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rel.LineTo(xa + 2 * w / 3, y + dy);
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// arrow body
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rel.MoveTo(xa, y);
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rel.LineTo(xa + w, y);
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rel.LineTo(xa + w, y - 2 * dy);
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rel.LineTo(xa - 1, // on windows lineto is exclusive endpoint, perhaps GTK not...
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y - 2 * dy);
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}
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MarginView::MarginView() {
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pixmapSelMargin = 0;
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pixmapSelPattern = 0;
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pixmapSelPatternOffset1 = 0;
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wrapMarkerPaddingRight = 3;
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customDrawWrapMarker = NULL;
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}
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void MarginView::DropGraphics(bool freeObjects) {
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if (freeObjects) {
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delete pixmapSelMargin;
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pixmapSelMargin = 0;
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delete pixmapSelPattern;
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pixmapSelPattern = 0;
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delete pixmapSelPatternOffset1;
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pixmapSelPatternOffset1 = 0;
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} else {
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if (pixmapSelMargin)
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pixmapSelMargin->Release();
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if (pixmapSelPattern)
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pixmapSelPattern->Release();
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if (pixmapSelPatternOffset1)
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pixmapSelPatternOffset1->Release();
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}
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}
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void MarginView::AllocateGraphics(const ViewStyle &vsDraw) {
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if (!pixmapSelMargin)
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pixmapSelMargin = Surface::Allocate(vsDraw.technology);
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if (!pixmapSelPattern)
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pixmapSelPattern = Surface::Allocate(vsDraw.technology);
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if (!pixmapSelPatternOffset1)
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pixmapSelPatternOffset1 = Surface::Allocate(vsDraw.technology);
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}
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void MarginView::RefreshPixMaps(Surface *surfaceWindow, WindowID wid, const ViewStyle &vsDraw) {
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if (!pixmapSelPattern->Initialised()) {
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const int patternSize = 8;
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pixmapSelPattern->InitPixMap(patternSize, patternSize, surfaceWindow, wid);
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pixmapSelPatternOffset1->InitPixMap(patternSize, patternSize, surfaceWindow, wid);
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// This complex procedure is to reproduce the checkerboard dithered pattern used by windows
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// for scroll bars and Visual Studio for its selection margin. The colour of this pattern is half
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// way between the chrome colour and the chrome highlight colour making a nice transition
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// between the window chrome and the content area. And it works in low colour depths.
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PRectangle rcPattern = PRectangle::FromInts(0, 0, patternSize, patternSize);
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// Initialize default colours based on the chrome colour scheme. Typically the highlight is white.
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ColourDesired colourFMFill = vsDraw.selbar;
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ColourDesired colourFMStripes = vsDraw.selbarlight;
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if (!(vsDraw.selbarlight == ColourDesired(0xff, 0xff, 0xff))) {
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// User has chosen an unusual chrome colour scheme so just use the highlight edge colour.
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// (Typically, the highlight colour is white.)
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colourFMFill = vsDraw.selbarlight;
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}
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if (vsDraw.foldmarginColour.isSet) {
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// override default fold margin colour
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colourFMFill = vsDraw.foldmarginColour;
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}
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if (vsDraw.foldmarginHighlightColour.isSet) {
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// override default fold margin highlight colour
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colourFMStripes = vsDraw.foldmarginHighlightColour;
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}
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pixmapSelPattern->FillRectangle(rcPattern, colourFMFill);
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pixmapSelPatternOffset1->FillRectangle(rcPattern, colourFMStripes);
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for (int y = 0; y < patternSize; y++) {
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for (int x = y % 2; x < patternSize; x += 2) {
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PRectangle rcPixel = PRectangle::FromInts(x, y, x + 1, y + 1);
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pixmapSelPattern->FillRectangle(rcPixel, colourFMStripes);
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pixmapSelPatternOffset1->FillRectangle(rcPixel, colourFMFill);
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}
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}
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}
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}
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static int SubstituteMarkerIfEmpty(int markerCheck, int markerDefault, const ViewStyle &vs) {
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if (vs.markers[markerCheck].markType == SC_MARK_EMPTY)
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return markerDefault;
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return markerCheck;
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}
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void MarginView::PaintMargin(Surface *surface, int topLine, PRectangle rc, PRectangle rcMargin,
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const EditModel &model, const ViewStyle &vs) {
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PRectangle rcSelMargin = rcMargin;
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rcSelMargin.right = rcMargin.left;
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if (rcSelMargin.bottom < rc.bottom)
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rcSelMargin.bottom = rc.bottom;
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Point ptOrigin = model.GetVisibleOriginInMain();
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FontAlias fontLineNumber = vs.styles[STYLE_LINENUMBER].font;
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for (int margin = 0; margin <= SC_MAX_MARGIN; margin++) {
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if (vs.ms[margin].width > 0) {
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rcSelMargin.left = rcSelMargin.right;
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rcSelMargin.right = rcSelMargin.left + vs.ms[margin].width;
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if (vs.ms[margin].style != SC_MARGIN_NUMBER) {
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if (vs.ms[margin].mask & SC_MASK_FOLDERS) {
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// Required because of special way brush is created for selection margin
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// Ensure patterns line up when scrolling with separate margin view
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// by choosing correctly aligned variant.
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bool invertPhase = static_cast<int>(ptOrigin.y) & 1;
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surface->FillRectangle(rcSelMargin,
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invertPhase ? *pixmapSelPattern : *pixmapSelPatternOffset1);
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} else {
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ColourDesired colour;
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switch (vs.ms[margin].style) {
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case SC_MARGIN_BACK:
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colour = vs.styles[STYLE_DEFAULT].back;
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break;
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case SC_MARGIN_FORE:
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colour = vs.styles[STYLE_DEFAULT].fore;
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break;
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default:
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colour = vs.styles[STYLE_LINENUMBER].back;
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break;
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}
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surface->FillRectangle(rcSelMargin, colour);
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}
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} else {
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surface->FillRectangle(rcSelMargin, vs.styles[STYLE_LINENUMBER].back);
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}
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const int lineStartPaint = static_cast<int>(rcMargin.top + ptOrigin.y) / vs.lineHeight;
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int visibleLine = model.TopLineOfMain() + lineStartPaint;
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int yposScreen = lineStartPaint * vs.lineHeight - static_cast<int>(ptOrigin.y);
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// Work out whether the top line is whitespace located after a
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// lessening of fold level which implies a 'fold tail' but which should not
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// be displayed until the last of a sequence of whitespace.
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bool needWhiteClosure = false;
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if (vs.ms[margin].mask & SC_MASK_FOLDERS) {
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int level = model.pdoc->GetLevel(model.cs.DocFromDisplay(visibleLine));
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if (level & SC_FOLDLEVELWHITEFLAG) {
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int lineBack = model.cs.DocFromDisplay(visibleLine);
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int levelPrev = level;
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while ((lineBack > 0) && (levelPrev & SC_FOLDLEVELWHITEFLAG)) {
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lineBack--;
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levelPrev = model.pdoc->GetLevel(lineBack);
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}
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if (!(levelPrev & SC_FOLDLEVELHEADERFLAG)) {
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if ((level & SC_FOLDLEVELNUMBERMASK) < (levelPrev & SC_FOLDLEVELNUMBERMASK))
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needWhiteClosure = true;
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}
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}
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if (highlightDelimiter.isEnabled) {
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int lastLine = model.cs.DocFromDisplay(topLine + model.LinesOnScreen()) + 1;
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model.pdoc->GetHighlightDelimiters(highlightDelimiter, model.pdoc->LineFromPosition(model.sel.MainCaret()), lastLine);
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}
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}
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// Old code does not know about new markers needed to distinguish all cases
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const int folderOpenMid = SubstituteMarkerIfEmpty(SC_MARKNUM_FOLDEROPENMID,
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SC_MARKNUM_FOLDEROPEN, vs);
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const int folderEnd = SubstituteMarkerIfEmpty(SC_MARKNUM_FOLDEREND,
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SC_MARKNUM_FOLDER, vs);
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while ((visibleLine < model.cs.LinesDisplayed()) && yposScreen < rc.bottom) {
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PLATFORM_ASSERT(visibleLine < model.cs.LinesDisplayed());
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const int lineDoc = model.cs.DocFromDisplay(visibleLine);
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PLATFORM_ASSERT(model.cs.GetVisible(lineDoc));
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const int firstVisibleLine = model.cs.DisplayFromDoc(lineDoc);
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const int lastVisibleLine = model.cs.DisplayLastFromDoc(lineDoc);
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const bool firstSubLine = visibleLine == firstVisibleLine;
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const bool lastSubLine = visibleLine == lastVisibleLine;
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int marks = model.pdoc->GetMark(lineDoc);
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if (!firstSubLine)
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marks = 0;
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bool headWithTail = false;
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if (vs.ms[margin].mask & SC_MASK_FOLDERS) {
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// Decide which fold indicator should be displayed
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const int level = model.pdoc->GetLevel(lineDoc);
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const int levelNext = model.pdoc->GetLevel(lineDoc + 1);
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const int levelNum = level & SC_FOLDLEVELNUMBERMASK;
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const int levelNextNum = levelNext & SC_FOLDLEVELNUMBERMASK;
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if (level & SC_FOLDLEVELHEADERFLAG) {
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if (firstSubLine) {
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if (levelNum < levelNextNum) {
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if (model.cs.GetExpanded(lineDoc)) {
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if (levelNum == SC_FOLDLEVELBASE)
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marks |= 1 << SC_MARKNUM_FOLDEROPEN;
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else
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marks |= 1 << folderOpenMid;
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} else {
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if (levelNum == SC_FOLDLEVELBASE)
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marks |= 1 << SC_MARKNUM_FOLDER;
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else
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marks |= 1 << folderEnd;
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}
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} else if (levelNum > SC_FOLDLEVELBASE) {
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marks |= 1 << SC_MARKNUM_FOLDERSUB;
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}
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} else {
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if (levelNum < levelNextNum) {
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if (model.cs.GetExpanded(lineDoc)) {
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marks |= 1 << SC_MARKNUM_FOLDERSUB;
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} else if (levelNum > SC_FOLDLEVELBASE) {
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marks |= 1 << SC_MARKNUM_FOLDERSUB;
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}
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} else if (levelNum > SC_FOLDLEVELBASE) {
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marks |= 1 << SC_MARKNUM_FOLDERSUB;
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}
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}
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needWhiteClosure = false;
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const int firstFollowupLine = model.cs.DocFromDisplay(model.cs.DisplayFromDoc(lineDoc + 1));
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const int firstFollowupLineLevel = model.pdoc->GetLevel(firstFollowupLine);
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const int secondFollowupLineLevelNum = model.pdoc->GetLevel(firstFollowupLine + 1) & SC_FOLDLEVELNUMBERMASK;
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if (!model.cs.GetExpanded(lineDoc)) {
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if ((firstFollowupLineLevel & SC_FOLDLEVELWHITEFLAG) &&
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(levelNum > secondFollowupLineLevelNum))
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needWhiteClosure = true;
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if (highlightDelimiter.IsFoldBlockHighlighted(firstFollowupLine))
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headWithTail = true;
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}
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} else if (level & SC_FOLDLEVELWHITEFLAG) {
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if (needWhiteClosure) {
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if (levelNext & SC_FOLDLEVELWHITEFLAG) {
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marks |= 1 << SC_MARKNUM_FOLDERSUB;
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} else if (levelNextNum > SC_FOLDLEVELBASE) {
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marks |= 1 << SC_MARKNUM_FOLDERMIDTAIL;
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needWhiteClosure = false;
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} else {
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marks |= 1 << SC_MARKNUM_FOLDERTAIL;
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needWhiteClosure = false;
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}
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} else if (levelNum > SC_FOLDLEVELBASE) {
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if (levelNextNum < levelNum) {
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if (levelNextNum > SC_FOLDLEVELBASE) {
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marks |= 1 << SC_MARKNUM_FOLDERMIDTAIL;
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} else {
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marks |= 1 << SC_MARKNUM_FOLDERTAIL;
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}
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} else {
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marks |= 1 << SC_MARKNUM_FOLDERSUB;
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}
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}
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} else if (levelNum > SC_FOLDLEVELBASE) {
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if (levelNextNum < levelNum) {
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needWhiteClosure = false;
|
||
|
|
if (levelNext & SC_FOLDLEVELWHITEFLAG) {
|
||
|
|
marks |= 1 << SC_MARKNUM_FOLDERSUB;
|
||
|
|
needWhiteClosure = true;
|
||
|
|
} else if (lastSubLine) {
|
||
|
|
if (levelNextNum > SC_FOLDLEVELBASE) {
|
||
|
|
marks |= 1 << SC_MARKNUM_FOLDERMIDTAIL;
|
||
|
|
} else {
|
||
|
|
marks |= 1 << SC_MARKNUM_FOLDERTAIL;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
marks |= 1 << SC_MARKNUM_FOLDERSUB;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
marks |= 1 << SC_MARKNUM_FOLDERSUB;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
marks &= vs.ms[margin].mask;
|
||
|
|
|
||
|
|
PRectangle rcMarker = rcSelMargin;
|
||
|
|
rcMarker.top = static_cast<XYPOSITION>(yposScreen);
|
||
|
|
rcMarker.bottom = static_cast<XYPOSITION>(yposScreen + vs.lineHeight);
|
||
|
|
if (vs.ms[margin].style == SC_MARGIN_NUMBER) {
|
||
|
|
if (firstSubLine) {
|
||
|
|
char number[100] = "";
|
||
|
|
if (lineDoc >= 0)
|
||
|
|
sprintf(number, "%d", lineDoc + 1);
|
||
|
|
if (model.foldFlags & (SC_FOLDFLAG_LEVELNUMBERS | SC_FOLDFLAG_LINESTATE)) {
|
||
|
|
if (model.foldFlags & SC_FOLDFLAG_LEVELNUMBERS) {
|
||
|
|
int lev = model.pdoc->GetLevel(lineDoc);
|
||
|
|
sprintf(number, "%c%c %03X %03X",
|
||
|
|
(lev & SC_FOLDLEVELHEADERFLAG) ? 'H' : '_',
|
||
|
|
(lev & SC_FOLDLEVELWHITEFLAG) ? 'W' : '_',
|
||
|
|
lev & SC_FOLDLEVELNUMBERMASK,
|
||
|
|
lev >> 16
|
||
|
|
);
|
||
|
|
} else {
|
||
|
|
int state = model.pdoc->GetLineState(lineDoc);
|
||
|
|
sprintf(number, "%0X", state);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
PRectangle rcNumber = rcMarker;
|
||
|
|
// Right justify
|
||
|
|
XYPOSITION width = surface->WidthText(fontLineNumber, number, static_cast<int>(strlen(number)));
|
||
|
|
XYPOSITION xpos = rcNumber.right - width - vs.marginNumberPadding;
|
||
|
|
rcNumber.left = xpos;
|
||
|
|
DrawTextNoClipPhase(surface, rcNumber, vs.styles[STYLE_LINENUMBER],
|
||
|
|
rcNumber.top + vs.maxAscent, number, static_cast<int>(strlen(number)), drawAll);
|
||
|
|
} else if (vs.wrapVisualFlags & SC_WRAPVISUALFLAG_MARGIN) {
|
||
|
|
PRectangle rcWrapMarker = rcMarker;
|
||
|
|
rcWrapMarker.right -= wrapMarkerPaddingRight;
|
||
|
|
rcWrapMarker.left = rcWrapMarker.right - vs.styles[STYLE_LINENUMBER].aveCharWidth;
|
||
|
|
if (customDrawWrapMarker == NULL) {
|
||
|
|
DrawWrapMarker(surface, rcWrapMarker, false, vs.styles[STYLE_LINENUMBER].fore);
|
||
|
|
} else {
|
||
|
|
customDrawWrapMarker(surface, rcWrapMarker, false, vs.styles[STYLE_LINENUMBER].fore);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else if (vs.ms[margin].style == SC_MARGIN_TEXT || vs.ms[margin].style == SC_MARGIN_RTEXT) {
|
||
|
|
const StyledText stMargin = model.pdoc->MarginStyledText(lineDoc);
|
||
|
|
if (stMargin.text && ValidStyledText(vs, vs.marginStyleOffset, stMargin)) {
|
||
|
|
if (firstSubLine) {
|
||
|
|
surface->FillRectangle(rcMarker,
|
||
|
|
vs.styles[stMargin.StyleAt(0) + vs.marginStyleOffset].back);
|
||
|
|
if (vs.ms[margin].style == SC_MARGIN_RTEXT) {
|
||
|
|
int width = WidestLineWidth(surface, vs, vs.marginStyleOffset, stMargin);
|
||
|
|
rcMarker.left = rcMarker.right - width - 3;
|
||
|
|
}
|
||
|
|
DrawStyledText(surface, vs, vs.marginStyleOffset, rcMarker,
|
||
|
|
stMargin, 0, stMargin.length, drawAll);
|
||
|
|
} else {
|
||
|
|
// if we're displaying annotation lines, color the margin to match the associated document line
|
||
|
|
const int annotationLines = model.pdoc->AnnotationLines(lineDoc);
|
||
|
|
if (annotationLines && (visibleLine > lastVisibleLine - annotationLines)) {
|
||
|
|
surface->FillRectangle(rcMarker, vs.styles[stMargin.StyleAt(0) + vs.marginStyleOffset].back);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (marks) {
|
||
|
|
for (int markBit = 0; (markBit < 32) && marks; markBit++) {
|
||
|
|
if (marks & 1) {
|
||
|
|
LineMarker::typeOfFold tFold = LineMarker::undefined;
|
||
|
|
if ((vs.ms[margin].mask & SC_MASK_FOLDERS) && highlightDelimiter.IsFoldBlockHighlighted(lineDoc)) {
|
||
|
|
if (highlightDelimiter.IsBodyOfFoldBlock(lineDoc)) {
|
||
|
|
tFold = LineMarker::body;
|
||
|
|
} else if (highlightDelimiter.IsHeadOfFoldBlock(lineDoc)) {
|
||
|
|
if (firstSubLine) {
|
||
|
|
tFold = headWithTail ? LineMarker::headWithTail : LineMarker::head;
|
||
|
|
} else {
|
||
|
|
if (model.cs.GetExpanded(lineDoc) || headWithTail) {
|
||
|
|
tFold = LineMarker::body;
|
||
|
|
} else {
|
||
|
|
tFold = LineMarker::undefined;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else if (highlightDelimiter.IsTailOfFoldBlock(lineDoc)) {
|
||
|
|
tFold = LineMarker::tail;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
vs.markers[markBit].Draw(surface, rcMarker, fontLineNumber, tFold, vs.ms[margin].style);
|
||
|
|
}
|
||
|
|
marks >>= 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
visibleLine++;
|
||
|
|
yposScreen += vs.lineHeight;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
PRectangle rcBlankMargin = rcMargin;
|
||
|
|
rcBlankMargin.left = rcSelMargin.right;
|
||
|
|
surface->FillRectangle(rcBlankMargin, vs.styles[STYLE_DEFAULT].back);
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef SCI_NAMESPACE
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|