149 lines
4.8 KiB
C++
149 lines
4.8 KiB
C++
/* -*- 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 */
|