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gfx/thebes/RoundedRect.h@b8a032363ba2 (annotated)

gfx/thebes/RoundedRect.h

Thu, 22 Jan 2015 13:21:57 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Thu, 22 Jan 2015 13:21:57 +0100

branch

TOR_BUG_9701

changeset 15

b8a032363ba2

permissions

-rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

michael@0	1	/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
michael@0	2	* This Source Code Form is subject to the terms of the Mozilla Public
michael@0	3	* License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0	4	* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0	5
michael@0	6	#include "gfxRect.h"
michael@0	7
michael@0	8	namespace mozilla {
michael@0	9	/* A rounded rectangle abstraction.
michael@0	10	*
michael@0	11	* This can represent a rectangle with a different pair of radii on each corner.
michael@0	12	*
michael@0	13	* Note: CoreGraphics and Direct2D only support rounded rectangle with the same
michael@0	14	* radii on all corners. However, supporting CSS's border-radius requires the extra flexibility. */
michael@0	15	struct RoundedRect {
michael@0	16	RoundedRect(gfxRect &aRect, gfxCornerSizes &aCorners) : rect(aRect), corners(aCorners) { }
michael@0	17	void Deflate(gfxFloat aTopWidth, gfxFloat aBottomWidth, gfxFloat aLeftWidth, gfxFloat aRightWidth) {
michael@0	18	// deflate the internal rect
michael@0	19	rect.x += aLeftWidth;
michael@0	20	rect.y += aTopWidth;
michael@0	21	rect.width = std::max(0., rect.width - aLeftWidth - aRightWidth);
michael@0	22	rect.height = std::max(0., rect.height - aTopWidth - aBottomWidth);
michael@0	23
michael@0	24	corners.sizes[NS_CORNER_TOP_LEFT].width = std::max(0., corners.sizes[NS_CORNER_TOP_LEFT].width - aLeftWidth);
michael@0	25	corners.sizes[NS_CORNER_TOP_LEFT].height = std::max(0., corners.sizes[NS_CORNER_TOP_LEFT].height - aTopWidth);
michael@0	26
michael@0	27	corners.sizes[NS_CORNER_TOP_RIGHT].width = std::max(0., corners.sizes[NS_CORNER_TOP_RIGHT].width - aRightWidth);
michael@0	28	corners.sizes[NS_CORNER_TOP_RIGHT].height = std::max(0., corners.sizes[NS_CORNER_TOP_RIGHT].height - aTopWidth);
michael@0	29
michael@0	30	corners.sizes[NS_CORNER_BOTTOM_LEFT].width = std::max(0., corners.sizes[NS_CORNER_BOTTOM_LEFT].width - aLeftWidth);
michael@0	31	corners.sizes[NS_CORNER_BOTTOM_LEFT].height = std::max(0., corners.sizes[NS_CORNER_BOTTOM_LEFT].height - aBottomWidth);
michael@0	32
michael@0	33	corners.sizes[NS_CORNER_BOTTOM_RIGHT].width = std::max(0., corners.sizes[NS_CORNER_BOTTOM_RIGHT].width - aRightWidth);
michael@0	34	corners.sizes[NS_CORNER_BOTTOM_RIGHT].height = std::max(0., corners.sizes[NS_CORNER_BOTTOM_RIGHT].height - aBottomWidth);
michael@0	35	}
michael@0	36	gfxRect rect;
michael@0	37	gfxCornerSizes corners;
michael@0	38	};
michael@0	39
michael@0	40	} // namespace mozilla