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Diffstat (limited to 'src/LineMarker.cxx')
| -rw-r--r-- | src/LineMarker.cxx | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/src/LineMarker.cxx b/src/LineMarker.cxx new file mode 100644 index 000000000..9afccb822 --- /dev/null +++ b/src/LineMarker.cxx @@ -0,0 +1,125 @@ +// 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 xpts[] = { + Point(centreX - armSize, centreY), + Point(centreX, centreY), + Point(centreX, centreY - armSize), + Point(centreX, centreY - armSize), + Point(centreX, centreY), + Point(centreX + armSize, centreY), + Point(centreX + armSize, centreY), + Point(centreX, centreY), + Point(centreX, centreY + armSize), + Point(centreX, centreY + armSize), + Point(centreX, centreY), + Point(centreX - armSize, centreY), + }; + 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), + }; + Point xpts[] = { + Point(centreX - armSize, centreY), + Point(centreX + armSize, centreY), + Point(centreX + armSize, centreY), + Point(centreX - armSize, centreY), + }; + 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); + } +} |