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// Scintilla source code edit control
/** @file LineMarker.cxx
** Defines the look of a line marker in the margin.
**/
// Copyright 1998-2011 by Neil Hodgson <neilh@scintilla.org>
// The License.txt file describes the conditions under which this software may be distributed.
#include <cstring>
#include <cmath>
#include <stdexcept>
#include <vector>
#include <map>
#include <algorithm>
#include <memory>
#include "Platform.h"
#include "Scintilla.h"
#include "IntegerRectangle.h"
#include "XPM.h"
#include "LineMarker.h"
using namespace Scintilla;
LineMarker::LineMarker(const LineMarker &other) {
// Defined to avoid pxpm and image being blindly copied, not as a complete copy constructor.
markType = other.markType;
fore = other.fore;
back = other.back;
backSelected = other.backSelected;
alpha = other.alpha;
if (other.pxpm)
pxpm = Sci::make_unique<XPM>(*other.pxpm);
else
pxpm = nullptr;
if (other.image)
image = Sci::make_unique<RGBAImage>(*other.image);
else
image = nullptr;
customDraw = other.customDraw;
}
LineMarker &LineMarker::operator=(const LineMarker &other) {
// Defined to avoid pxpm and image being blindly copied, not as a complete assignment operator.
if (this != &other) {
markType = other.markType;
fore = other.fore;
back = other.back;
backSelected = other.backSelected;
alpha = other.alpha;
if (other.pxpm)
pxpm = Sci::make_unique<XPM>(*other.pxpm);
else
pxpm = nullptr;
if (other.image)
image = Sci::make_unique<RGBAImage>(*other.image);
else
image = nullptr;
customDraw = other.customDraw;
}
return *this;
}
void LineMarker::SetXPM(const char *textForm) {
pxpm = Sci::make_unique<XPM>(textForm);
markType = SC_MARK_PIXMAP;
}
void LineMarker::SetXPM(const char *const *linesForm) {
pxpm = Sci::make_unique<XPM>(linesForm);
markType = SC_MARK_PIXMAP;
}
void LineMarker::SetRGBAImage(Point sizeRGBAImage, float scale, const unsigned char *pixelsRGBAImage) {
image = Sci::make_unique<RGBAImage>(static_cast<int>(sizeRGBAImage.x), static_cast<int>(sizeRGBAImage.y), scale, pixelsRGBAImage);
markType = SC_MARK_RGBAIMAGE;
}
static void DrawBox(Surface *surface, int centreX, int centreY, int armSize, ColourDesired fore, ColourDesired back) {
const PRectangle rc = PRectangle::FromInts(
centreX - armSize,
centreY - armSize,
centreX + armSize + 1,
centreY + armSize + 1);
surface->RectangleDraw(rc, back, fore);
}
static void DrawCircle(Surface *surface, int centreX, int centreY, int armSize, ColourDesired fore, ColourDesired back) {
const PRectangle rcCircle = PRectangle::FromInts(
centreX - armSize,
centreY - armSize,
centreX + armSize + 1,
centreY + armSize + 1);
surface->Ellipse(rcCircle, back, fore);
}
static void DrawPlus(Surface *surface, int centreX, int centreY, int armSize, ColourDesired fore) {
const PRectangle rcV = PRectangle::FromInts(centreX, centreY - armSize + 2, centreX + 1, centreY + armSize - 2 + 1);
surface->FillRectangle(rcV, fore);
const PRectangle rcH = PRectangle::FromInts(centreX - armSize + 2, centreY, centreX + armSize - 2 + 1, centreY + 1);
surface->FillRectangle(rcH, fore);
}
static void DrawMinus(Surface *surface, int centreX, int centreY, int armSize, ColourDesired fore) {
const PRectangle rcH = PRectangle::FromInts(centreX - armSize + 2, centreY, centreX + armSize - 2 + 1, centreY + 1);
surface->FillRectangle(rcH, fore);
}
void LineMarker::Draw(Surface *surface, PRectangle &rcWhole, Font &fontForCharacter, FoldPart part, int marginStyle) const {
if (customDraw) {
customDraw(surface, rcWhole, fontForCharacter, static_cast<int>(part), marginStyle, this);
return;
}
ColourDesired colourHead = back;
ColourDesired colourBody = back;
ColourDesired colourTail = back;
switch (part) {
case FoldPart::head:
case FoldPart::headWithTail:
colourHead = backSelected;
colourTail = backSelected;
break;
case FoldPart::body:
colourHead = backSelected;
colourBody = backSelected;
break;
case FoldPart::tail:
colourBody = backSelected;
colourTail = backSelected;
break;
default:
// FoldPart::undefined
break;
}
if ((markType == SC_MARK_PIXMAP) && (pxpm)) {
pxpm->Draw(surface, rcWhole);
return;
}
if ((markType == SC_MARK_RGBAIMAGE) && (image)) {
// Make rectangle just large enough to fit image centred on centre of rcWhole
PRectangle rcImage;
rcImage.top = ((rcWhole.top + rcWhole.bottom) - image->GetScaledHeight()) / 2;
rcImage.bottom = rcImage.top + image->GetScaledHeight();
rcImage.left = ((rcWhole.left + rcWhole.right) - image->GetScaledWidth()) / 2;
rcImage.right = rcImage.left + image->GetScaledWidth();
surface->DrawRGBAImage(rcImage, image->GetWidth(), image->GetHeight(), image->Pixels());
return;
}
const IntegerRectangle ircWhole(rcWhole);
// Restrict most shapes a bit
const PRectangle rc(rcWhole.left, rcWhole.top + 1, rcWhole.right, rcWhole.bottom - 1);
// Ensure does not go beyond edge
const int minDim = std::min(ircWhole.Width(), ircWhole.Height() - 2) - 1;
int centreX = (ircWhole.right + ircWhole.left) / 2;
const int centreY = (ircWhole.bottom + ircWhole.top) / 2;
const int dimOn2 = minDim / 2;
const int dimOn4 = minDim / 4;
const int blobSize = dimOn2 - 1;
const int armSize = dimOn2 - 2;
if (marginStyle == SC_MARGIN_NUMBER || marginStyle == SC_MARGIN_TEXT || marginStyle == SC_MARGIN_RTEXT) {
// On textual margins move marker to the left to try to avoid overlapping the text
centreX = ircWhole.left + dimOn2 + 1;
}
switch (markType) {
case SC_MARK_ROUNDRECT: {
PRectangle rcRounded = rc;
rcRounded.left = rc.left + 1;
rcRounded.right = rc.right - 1;
surface->RoundedRectangle(rcRounded, fore, back);
}
break;
case SC_MARK_CIRCLE: {
const PRectangle rcCircle = PRectangle::FromInts(
centreX - dimOn2,
centreY - dimOn2,
centreX + dimOn2,
centreY + dimOn2);
surface->Ellipse(rcCircle, fore, back);
}
break;
case SC_MARK_ARROW: {
Point pts[] = {
Point::FromInts(centreX - dimOn4, centreY - dimOn2),
Point::FromInts(centreX - dimOn4, centreY + dimOn2),
Point::FromInts(centreX + dimOn2 - dimOn4, centreY),
};
surface->Polygon(pts, Sci::size(pts), fore, back);
}
break;
case SC_MARK_ARROWDOWN: {
Point pts[] = {
Point::FromInts(centreX - dimOn2, centreY - dimOn4),
Point::FromInts(centreX + dimOn2, centreY - dimOn4),
Point::FromInts(centreX, centreY + dimOn2 - dimOn4),
};
surface->Polygon(pts, Sci::size(pts), fore, back);
}
break;
case SC_MARK_PLUS: {
Point pts[] = {
Point::FromInts(centreX - armSize, centreY - 1),
Point::FromInts(centreX - 1, centreY - 1),
Point::FromInts(centreX - 1, centreY - armSize),
Point::FromInts(centreX + 1, centreY - armSize),
Point::FromInts(centreX + 1, centreY - 1),
Point::FromInts(centreX + armSize, centreY - 1),
Point::FromInts(centreX + armSize, centreY + 1),
Point::FromInts(centreX + 1, centreY + 1),
Point::FromInts(centreX + 1, centreY + armSize),
Point::FromInts(centreX - 1, centreY + armSize),
Point::FromInts(centreX - 1, centreY + 1),
Point::FromInts(centreX - armSize, centreY + 1),
};
surface->Polygon(pts, Sci::size(pts), fore, back);
}
break;
case SC_MARK_MINUS: {
Point pts[] = {
Point::FromInts(centreX - armSize, centreY - 1),
Point::FromInts(centreX + armSize, centreY - 1),
Point::FromInts(centreX + armSize, centreY + 1),
Point::FromInts(centreX - armSize, centreY + 1),
};
surface->Polygon(pts, Sci::size(pts), fore, back);
}
break;
case SC_MARK_SMALLRECT: {
PRectangle rcSmall;
rcSmall.left = rc.left + 1;
rcSmall.top = rc.top + 2;
rcSmall.right = rc.right - 1;
rcSmall.bottom = rc.bottom - 2;
surface->RectangleDraw(rcSmall, fore, back);
}
break;
case SC_MARK_EMPTY:
case SC_MARK_BACKGROUND:
case SC_MARK_UNDERLINE:
case SC_MARK_AVAILABLE:
// An invisible marker so don't draw anything
break;
case SC_MARK_VLINE: {
surface->PenColour(colourBody);
surface->MoveTo(centreX, ircWhole.top);
surface->LineTo(centreX, ircWhole.bottom);
}
break;
case SC_MARK_LCORNER: {
surface->PenColour(colourTail);
surface->MoveTo(centreX, ircWhole.top);
surface->LineTo(centreX, centreY);
surface->LineTo(ircWhole.right - 1, centreY);
}
break;
case SC_MARK_TCORNER: {
surface->PenColour(colourTail);
surface->MoveTo(centreX, centreY);
surface->LineTo(ircWhole.right - 1, centreY);
surface->PenColour(colourBody);
surface->MoveTo(centreX, ircWhole.top);
surface->LineTo(centreX, centreY + 1);
surface->PenColour(colourHead);
surface->LineTo(centreX, ircWhole.bottom);
}
break;
case SC_MARK_LCORNERCURVE: {
surface->PenColour(colourTail);
surface->MoveTo(centreX, ircWhole.top);
surface->LineTo(centreX, centreY - 3);
surface->LineTo(centreX + 3, centreY);
surface->LineTo(ircWhole.right - 1, centreY);
}
break;
case SC_MARK_TCORNERCURVE: {
surface->PenColour(colourTail);
surface->MoveTo(centreX, centreY - 3);
surface->LineTo(centreX + 3, centreY);
surface->LineTo(ircWhole.right - 1, centreY);
surface->PenColour(colourBody);
surface->MoveTo(centreX, ircWhole.top);
surface->LineTo(centreX, centreY - 2);
surface->PenColour(colourHead);
surface->LineTo(centreX, ircWhole.bottom);
}
break;
case SC_MARK_BOXPLUS: {
DrawBox(surface, centreX, centreY, blobSize, fore, colourHead);
DrawPlus(surface, centreX, centreY, blobSize, colourTail);
}
break;
case SC_MARK_BOXPLUSCONNECTED: {
if (part == FoldPart::headWithTail)
surface->PenColour(colourTail);
else
surface->PenColour(colourBody);
surface->MoveTo(centreX, centreY + blobSize);
surface->LineTo(centreX, ircWhole.bottom);
surface->PenColour(colourBody);
surface->MoveTo(centreX, ircWhole.top);
surface->LineTo(centreX, centreY - blobSize);
DrawBox(surface, centreX, centreY, blobSize, fore, colourHead);
DrawPlus(surface, centreX, centreY, blobSize, colourTail);
if (part == FoldPart::body) {
surface->PenColour(colourTail);
surface->MoveTo(centreX + 1, centreY + blobSize);
surface->LineTo(centreX + blobSize + 1, centreY + blobSize);
surface->MoveTo(centreX + blobSize, centreY + blobSize);
surface->LineTo(centreX + blobSize, centreY - blobSize);
surface->MoveTo(centreX + 1, centreY - blobSize);
surface->LineTo(centreX + blobSize + 1, centreY - blobSize);
}
}
break;
case SC_MARK_BOXMINUS: {
DrawBox(surface, centreX, centreY, blobSize, fore, colourHead);
DrawMinus(surface, centreX, centreY, blobSize, colourTail);
surface->PenColour(colourHead);
surface->MoveTo(centreX, centreY + blobSize);
surface->LineTo(centreX, ircWhole.bottom);
}
break;
case SC_MARK_BOXMINUSCONNECTED: {
DrawBox(surface, centreX, centreY, blobSize, fore, colourHead);
DrawMinus(surface, centreX, centreY, blobSize, colourTail);
surface->PenColour(colourHead);
surface->MoveTo(centreX, centreY + blobSize);
surface->LineTo(centreX, ircWhole.bottom);
surface->PenColour(colourBody);
surface->MoveTo(centreX, ircWhole.top);
surface->LineTo(centreX, centreY - blobSize);
if (part == FoldPart::body) {
surface->PenColour(colourTail);
surface->MoveTo(centreX + 1, centreY + blobSize);
surface->LineTo(centreX + blobSize + 1, centreY + blobSize);
surface->MoveTo(centreX + blobSize, centreY + blobSize);
surface->LineTo(centreX + blobSize, centreY - blobSize);
surface->MoveTo(centreX + 1, centreY - blobSize);
surface->LineTo(centreX + blobSize + 1, centreY - blobSize);
}
}
break;
case SC_MARK_CIRCLEPLUS: {
DrawCircle(surface, centreX, centreY, blobSize, fore, colourHead);
DrawPlus(surface, centreX, centreY, blobSize, colourTail);
}
break;
case SC_MARK_CIRCLEPLUSCONNECTED: {
if (part == FoldPart::headWithTail)
surface->PenColour(colourTail);
else
surface->PenColour(colourBody);
surface->MoveTo(centreX, centreY + blobSize);
surface->LineTo(centreX, ircWhole.bottom);
surface->PenColour(colourBody);
surface->MoveTo(centreX, ircWhole.top);
surface->LineTo(centreX, centreY - blobSize);
DrawCircle(surface, centreX, centreY, blobSize, fore, colourHead);
DrawPlus(surface, centreX, centreY, blobSize, colourTail);
}
break;
case SC_MARK_CIRCLEMINUS: {
surface->PenColour(colourHead);
surface->MoveTo(centreX, centreY + blobSize);
surface->LineTo(centreX, ircWhole.bottom);
DrawCircle(surface, centreX, centreY, blobSize, fore, colourHead);
DrawMinus(surface, centreX, centreY, blobSize, colourTail);
}
break;
case SC_MARK_CIRCLEMINUSCONNECTED: {
surface->PenColour(colourHead);
surface->MoveTo(centreX, centreY + blobSize);
surface->LineTo(centreX, ircWhole.bottom);
surface->PenColour(colourBody);
surface->MoveTo(centreX, ircWhole.top);
surface->LineTo(centreX, centreY - blobSize);
DrawCircle(surface, centreX, centreY, blobSize, fore, colourHead);
DrawMinus(surface, centreX, centreY, blobSize, colourTail);
}
break;
case SC_MARK_DOTDOTDOT: {
XYPOSITION right = static_cast<XYPOSITION>(centreX - 6);
for (int b = 0; b < 3; b++) {
const PRectangle rcBlob(right, rc.bottom - 4, right + 2, rc.bottom - 2);
surface->FillRectangle(rcBlob, fore);
right += 5.0f;
}
}
break;
case SC_MARK_ARROWS: {
surface->PenColour(fore);
int right = centreX - 2;
const int armLength = dimOn2 - 1;
for (int b = 0; b < 3; b++) {
surface->MoveTo(right, centreY);
surface->LineTo(right - armLength, centreY - armLength);
surface->MoveTo(right, centreY);
surface->LineTo(right - armLength, centreY + armLength);
right += 4;
}
}
break;
case SC_MARK_SHORTARROW: {
Point pts[] = {
Point::FromInts(centreX, centreY + dimOn2),
Point::FromInts(centreX + dimOn2, centreY),
Point::FromInts(centreX, centreY - dimOn2),
Point::FromInts(centreX, centreY - dimOn4),
Point::FromInts(centreX - dimOn4, centreY - dimOn4),
Point::FromInts(centreX - dimOn4, centreY + dimOn4),
Point::FromInts(centreX, centreY + dimOn4),
Point::FromInts(centreX, centreY + dimOn2),
};
surface->Polygon(pts, Sci::size(pts), fore, back);
}
break;
case SC_MARK_FULLRECT:
surface->FillRectangle(rcWhole, back);
break;
case SC_MARK_LEFTRECT: {
PRectangle rcLeft = rcWhole;
rcLeft.right = rcLeft.left + 4;
surface->FillRectangle(rcLeft, back);
}
break;
case SC_MARK_BOOKMARK: {
const int halfHeight = minDim / 3;
Point pts[] = {
Point::FromInts(ircWhole.left, centreY - halfHeight),
Point::FromInts(ircWhole.right - 3, centreY - halfHeight),
Point::FromInts(ircWhole.right - 3 - halfHeight, centreY),
Point::FromInts(ircWhole.right - 3, centreY + halfHeight),
Point::FromInts(ircWhole.left, centreY + halfHeight),
};
surface->Polygon(pts, Sci::size(pts), fore, back);
}
break;
case SC_MARK_VERTICALBOOKMARK: {
const int halfWidth = minDim / 3;
Point pts[] = {
Point::FromInts(centreX - halfWidth, centreY - dimOn2),
Point::FromInts(centreX + halfWidth, centreY - dimOn2),
Point::FromInts(centreX + halfWidth, centreY + dimOn2),
Point::FromInts(centreX, centreY + dimOn2 - halfWidth),
Point::FromInts(centreX - halfWidth, centreY + dimOn2),
};
surface->Polygon(pts, Sci::size(pts), fore, back);
}
break;
default:
if (markType >= SC_MARK_CHARACTER) {
char character[1];
character[0] = static_cast<char>(markType - SC_MARK_CHARACTER);
const XYPOSITION width = surface->WidthText(fontForCharacter, character, 1);
PRectangle rcText = rc;
rcText.left += (rc.Width() - width) / 2;
rcText.right = rc.left + width;
surface->DrawTextClipped(rcText, fontForCharacter, rcText.bottom - 2,
character, 1, fore, back);
} else {
// treat as SC_MARK_FULLRECT
surface->FillRectangle(rcWhole, back);
}
break;
}
}
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