1 files changed, 148 insertions, 0 deletions
diff --git a/gfx/thebes/gfxRect.h b/gfx/thebes/gfxRect.h
new file mode 100644
index 000000000..56d5c43e5
--- /dev/null
+++ b/gfx/thebes/gfxRect.h
@@ -0,0 +1,148 @@
+/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef GFX_RECT_H
+#define GFX_RECT_H
+
+#include "gfxTypes.h"
+#include "gfxPoint.h"
+#include "nsDebug.h"
+#include "nsRect.h"
+#include "mozilla/gfx/BaseMargin.h"
+#include "mozilla/gfx/BaseRect.h"
+#include "mozilla/gfx/MatrixFwd.h"
+#include "mozilla/Assertions.h"
+
+struct gfxQuad;
+
+struct gfxMargin : public mozilla::gfx::BaseMargin<gfxFloat, gfxMargin> {
+  typedef mozilla::gfx::BaseMargin<gfxFloat, gfxMargin> Super;
+
+  // Constructors
+  gfxMargin() : Super() {}
+  gfxMargin(const gfxMargin& aMargin) : Super(aMargin) {}
+  gfxMargin(gfxFloat aTop, gfxFloat aRight, gfxFloat aBottom, gfxFloat aLeft)
+    : Super(aTop, aRight, aBottom, aLeft) {}
+};
+
+namespace mozilla {
+    namespace css {
+        enum Corner {
+            // this order is important!
+            eCornerTopLeft = 0,
+            eCornerTopRight = 1,
+            eCornerBottomRight = 2,
+            eCornerBottomLeft = 3,
+            eNumCorners = 4
+        };
+    } // namespace css
+} // namespace mozilla
+#define NS_CORNER_TOP_LEFT mozilla::css::eCornerTopLeft
+#define NS_CORNER_TOP_RIGHT mozilla::css::eCornerTopRight
+#define NS_CORNER_BOTTOM_RIGHT mozilla::css::eCornerBottomRight
+#define NS_CORNER_BOTTOM_LEFT mozilla::css::eCornerBottomLeft
+#define NS_NUM_CORNERS mozilla::css::eNumCorners
+
+#define NS_FOR_CSS_CORNERS(var_)                         \
+    for (mozilla::css::Corner var_ = NS_CORNER_TOP_LEFT; \
+         var_ <= NS_CORNER_BOTTOM_LEFT;                  \
+         var_++)
+
+static inline mozilla::css::Corner operator++(mozilla::css::Corner& corner, int) {
+    NS_PRECONDITION(corner >= NS_CORNER_TOP_LEFT &&
+                    corner < NS_NUM_CORNERS, "Out of range corner");
+    corner = mozilla::css::Corner(corner + 1);
+    return corner;
+}
+
+struct gfxRect :
+    public mozilla::gfx::BaseRect<gfxFloat, gfxRect, gfxPoint, gfxSize, gfxMargin> {
+    typedef mozilla::gfx::BaseRect<gfxFloat, gfxRect, gfxPoint, gfxSize, gfxMargin> Super;
+
+    gfxRect() : Super() {}
+    gfxRect(const gfxPoint& aPos, const gfxSize& aSize) :
+        Super(aPos, aSize) {}
+    gfxRect(gfxFloat aX, gfxFloat aY, gfxFloat aWidth, gfxFloat aHeight) :
+        Super(aX, aY, aWidth, aHeight) {}
+
+    /**
+     * Return true if all components of this rect are within
+     * aEpsilon of integer coordinates, defined as
+     *   |round(coord) - coord| <= |aEpsilon|
+     * for x,y,width,height.
+     */
+    bool WithinEpsilonOfIntegerPixels(gfxFloat aEpsilon) const;
+
+    gfxPoint AtCorner(mozilla::css::Corner corner) const {
+        switch (corner) {
+            case NS_CORNER_TOP_LEFT: return TopLeft();
+            case NS_CORNER_TOP_RIGHT: return TopRight();
+            case NS_CORNER_BOTTOM_RIGHT: return BottomRight();
+            case NS_CORNER_BOTTOM_LEFT: return BottomLeft();
+            default:
+                NS_ERROR("Invalid corner!");
+                break;
+        }
+        return gfxPoint(0.0, 0.0);
+    }
+
+    gfxPoint CCWCorner(mozilla::Side side) const {
+        switch (side) {
+            case NS_SIDE_TOP: return TopLeft();
+            case NS_SIDE_RIGHT: return TopRight();
+            case NS_SIDE_BOTTOM: return BottomRight();
+            case NS_SIDE_LEFT: return BottomLeft();
+        }
+        MOZ_CRASH("Incomplete switch");
+    }
+
+    gfxPoint CWCorner(mozilla::Side side) const {
+        switch (side) {
+            case NS_SIDE_TOP: return TopRight();
+            case NS_SIDE_RIGHT: return BottomRight();
+            case NS_SIDE_BOTTOM: return BottomLeft();
+            case NS_SIDE_LEFT: return TopLeft();
+        }
+        MOZ_CRASH("Incomplete switch");
+    }
+
+    /* Conditions this border to Cairo's max coordinate space.
+     * The caller can check IsEmpty() after Condition() -- if it's TRUE,
+     * the caller can possibly avoid doing any extra rendering.
+     */
+    void Condition();
+
+    void Scale(gfxFloat k) {
+        NS_ASSERTION(k >= 0.0, "Invalid (negative) scale factor");
+        x *= k;
+        y *= k;
+        width *= k;
+        height *= k;
+    }
+
+    void Scale(gfxFloat sx, gfxFloat sy) {
+        NS_ASSERTION(sx >= 0.0, "Invalid (negative) scale factor");
+        NS_ASSERTION(sy >= 0.0, "Invalid (negative) scale factor");
+        x *= sx;
+        y *= sy;
+        width *= sx;
+        height *= sy;
+    }
+
+    void ScaleInverse(gfxFloat k) {
+        NS_ASSERTION(k > 0.0, "Invalid (negative) scale factor");
+        x /= k;
+        y /= k;
+        width /= k;
+        height /= k;
+    }
+
+    /*
+     * Transform this rectangle with aMatrix, resulting in a gfxQuad.
+     */
+    gfxQuad TransformToQuad(const mozilla::gfx::Matrix4x4 &aMatrix) const;
+};
+
+#endif /* GFX_RECT_H */