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// Scintilla source code edit control
// LineMarker.cxx - defines the look of a line marker in the margin
// Copyright 1998-2000 by Neil Hodgson <neilh@scintilla.org>
// The License.txt file describes the conditions under which this software may be distributed.
#include "Platform.h"
#include "Scintilla.h"
#include "LineMarker.h"
void LineMarker::Draw(Surface *surface, PRectangle &rc) {
int minDim = Platform::Minimum(rc.Width(), rc.Height());
minDim--; // Ensure does not go beyond edge
int centreX = (rc.right + rc.left) / 2;
int centreY = (rc.bottom + rc.top) / 2;
int dimOn2 = minDim / 2;
int dimOn4 = minDim / 4;
if (rc.Width() > (rc.Height() * 2)) {
// Wide column is line number so move to left to try to avoid overlapping number
centreX = rc.left + dimOn2 + 1;
}
if (markType == SC_MARK_ROUNDRECT) {
PRectangle rcRounded = rc;
rcRounded.left = rc.left + 1;
rcRounded.right = rc.right - 1;
surface->RoundedRectangle(rcRounded, fore.allocated, back.allocated);
} else if (markType == SC_MARK_CIRCLE) {
PRectangle rcCircle;
rcCircle.left = centreX - dimOn2;
rcCircle.top = centreY - dimOn2;
rcCircle.right = centreX + dimOn2;
rcCircle.bottom = centreY + dimOn2;
surface->Ellipse(rcCircle, fore.allocated, back.allocated);
} else if (markType == SC_MARK_ARROW) {
Point pts[] = {
Point(centreX - dimOn4, centreY - dimOn2),
Point(centreX - dimOn4, centreY + dimOn2),
Point(centreX + dimOn2 - dimOn4, centreY),
};
surface->Polygon(pts, sizeof(pts) / sizeof(pts[0]),
fore.allocated, back.allocated);
} else if (markType == SC_MARK_ARROWDOWN) {
Point pts[] = {
Point(centreX - dimOn2, centreY - dimOn4),
Point(centreX + dimOn2, centreY - dimOn4),
Point(centreX, centreY + dimOn2 - dimOn4),
};
surface->Polygon(pts, sizeof(pts) / sizeof(pts[0]),
fore.allocated, back.allocated);
} else if (markType == SC_MARK_PLUS) {
int armSize = dimOn2-2;
Point pts[] = {
Point(centreX - armSize, centreY - 1),
Point(centreX - 1, centreY - 1),
Point(centreX - 1, centreY - armSize),
Point(centreX + 1, centreY - armSize),
Point(centreX + 1, centreY - 1),
Point(centreX + armSize, centreY -1),
Point(centreX + armSize, centreY +1),
Point(centreX + 1, centreY + 1),
Point(centreX + 1, centreY + armSize),
Point(centreX - 1, centreY + armSize),
Point(centreX - 1, centreY + 1),
Point(centreX - armSize, centreY + 1),
};
surface->Polygon(pts, sizeof(pts) / sizeof(pts[0]),
fore.allocated, back.allocated);
} else if (markType == SC_MARK_MINUS) {
int armSize = dimOn2-2;
Point pts[] = {
Point(centreX - armSize, centreY - 1),
Point(centreX + armSize, centreY -1),
Point(centreX + armSize, centreY +1),
Point(centreX - armSize, centreY + 1),
};
surface->Polygon(pts, sizeof(pts) / sizeof(pts[0]),
fore.allocated, back.allocated);
} else if (markType == 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.allocated, back.allocated);
} else if (markType == SC_MARK_EMPTY) {
// An invisible marker so don't draw anything
} else { // SC_MARK_SHORTARROW
Point pts[] = {
Point(centreX, centreY + dimOn2),
Point(centreX + dimOn2, centreY),
Point(centreX, centreY - dimOn2),
Point(centreX, centreY - dimOn4),
Point(centreX - dimOn4, centreY - dimOn4),
Point(centreX - dimOn4, centreY + dimOn4),
Point(centreX, centreY + dimOn4),
Point(centreX, centreY + dimOn2),
};
surface->Polygon(pts, sizeof(pts) / sizeof(pts[0]),
fore.allocated, back.allocated);
}
}
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