mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-24 13:21:05 +00:00
ab2154bd1b
This greatly improves non-native theme on Windows in presence of fractional DPI (see bug 1657191). This matches what the Windows native theme does, to my knowledge, see ScaleForFrameDPI in nsNativeThemeWin.h. However I think the right fix is to not make these LayoutDeviceInt* things but LayoutDevice*. That's a bigger fix, and fits well as a follow-up to this bug, so let's land this in the meantime. Differential Revision: https://phabricator.services.mozilla.com/D97937
484 lines
17 KiB
C++
484 lines
17 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* 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 MOZILLA_GFX_RECT_H_
|
|
#define MOZILLA_GFX_RECT_H_
|
|
|
|
#include "BaseRect.h"
|
|
#include "BaseMargin.h"
|
|
#include "NumericTools.h"
|
|
#include "Point.h"
|
|
#include "Tools.h"
|
|
#include "mozilla/Maybe.h"
|
|
|
|
#include <cmath>
|
|
|
|
namespace mozilla {
|
|
|
|
template <typename>
|
|
struct IsPixel;
|
|
|
|
namespace gfx {
|
|
|
|
template <class units, class F>
|
|
struct RectTyped;
|
|
|
|
template <class units>
|
|
struct IntMarginTyped : public BaseMargin<int32_t, IntMarginTyped<units> >,
|
|
public units {
|
|
static_assert(IsPixel<units>::value,
|
|
"'units' must be a coordinate system tag");
|
|
|
|
typedef BaseMargin<int32_t, IntMarginTyped<units> > Super;
|
|
|
|
IntMarginTyped() : Super() {}
|
|
IntMarginTyped(int32_t aTop, int32_t aRight, int32_t aBottom, int32_t aLeft)
|
|
: Super(aTop, aRight, aBottom, aLeft) {}
|
|
|
|
// XXX When all of the code is ported, the following functions to convert
|
|
// to and from unknown types should be removed.
|
|
|
|
static IntMarginTyped<units> FromUnknownMargin(
|
|
const IntMarginTyped<UnknownUnits>& aMargin) {
|
|
return IntMarginTyped<units>(aMargin.top, aMargin.right, aMargin.bottom,
|
|
aMargin.left);
|
|
}
|
|
|
|
IntMarginTyped<UnknownUnits> ToUnknownMargin() const {
|
|
return IntMarginTyped<UnknownUnits>(this->top, this->right, this->bottom,
|
|
this->left);
|
|
}
|
|
};
|
|
typedef IntMarginTyped<UnknownUnits> IntMargin;
|
|
|
|
template <class units, class F = Float>
|
|
struct MarginTyped : public BaseMargin<F, MarginTyped<units, F> >,
|
|
public units {
|
|
static_assert(IsPixel<units>::value,
|
|
"'units' must be a coordinate system tag");
|
|
|
|
typedef BaseMargin<F, MarginTyped<units, F> > Super;
|
|
|
|
MarginTyped() : Super() {}
|
|
MarginTyped(F aTop, F aRight, F aBottom, F aLeft)
|
|
: Super(aTop, aRight, aBottom, aLeft) {}
|
|
explicit MarginTyped(const IntMarginTyped<units>& aMargin)
|
|
: Super(F(aMargin.top), F(aMargin.right), F(aMargin.bottom),
|
|
F(aMargin.left)) {}
|
|
|
|
bool WithinEpsilonOf(const MarginTyped& aOther, F aEpsilon) const {
|
|
return fabs(this->left - aOther.left) < aEpsilon &&
|
|
fabs(this->top - aOther.top) < aEpsilon &&
|
|
fabs(this->right - aOther.right) < aEpsilon &&
|
|
fabs(this->bottom - aOther.bottom) < aEpsilon;
|
|
}
|
|
|
|
IntMarginTyped<units> Rounded() const {
|
|
return IntMarginTyped<units>(int32_t(std::floor(this->top + 0.5f)),
|
|
int32_t(std::floor(this->right + 0.5f)),
|
|
int32_t(std::floor(this->bottom + 0.5f)),
|
|
int32_t(std::floor(this->left + 0.5f)));
|
|
}
|
|
};
|
|
typedef MarginTyped<UnknownUnits> Margin;
|
|
typedef MarginTyped<UnknownUnits, double> MarginDouble;
|
|
|
|
template <class units>
|
|
IntMarginTyped<units> RoundedToInt(const MarginTyped<units>& aMargin) {
|
|
return aMargin.Rounded();
|
|
}
|
|
|
|
template <class units>
|
|
struct IntRectTyped
|
|
: public BaseRect<int32_t, IntRectTyped<units>, IntPointTyped<units>,
|
|
IntSizeTyped<units>, IntMarginTyped<units> >,
|
|
public units {
|
|
static_assert(IsPixel<units>::value,
|
|
"'units' must be a coordinate system tag");
|
|
|
|
typedef BaseRect<int32_t, IntRectTyped<units>, IntPointTyped<units>,
|
|
IntSizeTyped<units>, IntMarginTyped<units> >
|
|
Super;
|
|
typedef IntRectTyped<units> Self;
|
|
typedef IntParam<int32_t> ToInt;
|
|
|
|
IntRectTyped() : Super() {}
|
|
IntRectTyped(const IntPointTyped<units>& aPos,
|
|
const IntSizeTyped<units>& aSize)
|
|
: Super(aPos, aSize) {}
|
|
|
|
IntRectTyped(ToInt aX, ToInt aY, ToInt aWidth, ToInt aHeight)
|
|
: Super(aX.value, aY.value, aWidth.value, aHeight.value) {}
|
|
|
|
static IntRectTyped<units> RoundIn(float aX, float aY, float aW, float aH) {
|
|
return IntRectTyped<units>::RoundIn(
|
|
RectTyped<units, float>(aX, aY, aW, aH));
|
|
}
|
|
|
|
static IntRectTyped<units> RoundOut(float aX, float aY, float aW, float aH) {
|
|
return IntRectTyped<units>::RoundOut(
|
|
RectTyped<units, float>(aX, aY, aW, aH));
|
|
}
|
|
|
|
static IntRectTyped<units> Round(float aX, float aY, float aW, float aH) {
|
|
return IntRectTyped<units>::Round(RectTyped<units, float>(aX, aY, aW, aH));
|
|
}
|
|
|
|
static IntRectTyped<units> Truncate(float aX, float aY, float aW, float aH) {
|
|
return IntRectTyped<units>(IntPointTyped<units>::Truncate(aX, aY),
|
|
IntSizeTyped<units>::Truncate(aW, aH));
|
|
}
|
|
|
|
static IntRectTyped<units> RoundIn(const RectTyped<units, float>& aRect) {
|
|
auto tmp(aRect);
|
|
tmp.RoundIn();
|
|
return IntRectTyped(int32_t(tmp.X()), int32_t(tmp.Y()),
|
|
int32_t(tmp.Width()), int32_t(tmp.Height()));
|
|
}
|
|
|
|
static IntRectTyped<units> RoundOut(const RectTyped<units, float>& aRect) {
|
|
auto tmp(aRect);
|
|
tmp.RoundOut();
|
|
return IntRectTyped(int32_t(tmp.X()), int32_t(tmp.Y()),
|
|
int32_t(tmp.Width()), int32_t(tmp.Height()));
|
|
}
|
|
|
|
static IntRectTyped<units> Round(const RectTyped<units, float>& aRect) {
|
|
auto tmp(aRect);
|
|
tmp.Round();
|
|
return IntRectTyped(int32_t(tmp.X()), int32_t(tmp.Y()),
|
|
int32_t(tmp.Width()), int32_t(tmp.Height()));
|
|
}
|
|
|
|
static IntRectTyped<units> Truncate(const RectTyped<units, float>& aRect) {
|
|
return IntRectTyped::Truncate(aRect.X(), aRect.Y(), aRect.Width(),
|
|
aRect.Height());
|
|
}
|
|
|
|
// Rounding isn't meaningful on an integer rectangle.
|
|
void Round() {}
|
|
void RoundIn() {}
|
|
void RoundOut() {}
|
|
|
|
// XXX When all of the code is ported, the following functions to convert
|
|
// to and from unknown types should be removed.
|
|
|
|
static IntRectTyped<units> FromUnknownRect(
|
|
const IntRectTyped<UnknownUnits>& rect) {
|
|
return IntRectTyped<units>(rect.X(), rect.Y(), rect.Width(), rect.Height());
|
|
}
|
|
|
|
IntRectTyped<UnknownUnits> ToUnknownRect() const {
|
|
return IntRectTyped<UnknownUnits>(this->X(), this->Y(), this->Width(),
|
|
this->Height());
|
|
}
|
|
|
|
bool Overflows() const {
|
|
CheckedInt<int32_t> xMost = this->X();
|
|
xMost += this->Width();
|
|
CheckedInt<int32_t> yMost = this->Y();
|
|
yMost += this->Height();
|
|
return !xMost.isValid() || !yMost.isValid();
|
|
}
|
|
|
|
// Same as Union(), but in the cases where aRect is non-empty, the union is
|
|
// done while guarding against overflow. If an overflow is detected, Nothing
|
|
// is returned.
|
|
[[nodiscard]] Maybe<Self> SafeUnion(const Self& aRect) const {
|
|
if (this->IsEmpty()) {
|
|
return aRect.Overflows() ? Nothing() : Some(aRect);
|
|
} else if (aRect.IsEmpty()) {
|
|
return Some(*static_cast<const Self*>(this));
|
|
} else {
|
|
return this->SafeUnionEdges(aRect);
|
|
}
|
|
}
|
|
|
|
// Same as UnionEdges, but guards against overflow. If an overflow is
|
|
// detected, Nothing is returned.
|
|
[[nodiscard]] Maybe<Self> SafeUnionEdges(const Self& aRect) const {
|
|
if (this->Overflows() || aRect.Overflows()) {
|
|
return Nothing();
|
|
}
|
|
// If neither |this| nor |aRect| overflow, then their XMost/YMost values
|
|
// should be safe to use.
|
|
CheckedInt<int32_t> newX = std::min(this->x, aRect.x);
|
|
CheckedInt<int32_t> newY = std::min(this->y, aRect.y);
|
|
CheckedInt<int32_t> newXMost = std::max(this->XMost(), aRect.XMost());
|
|
CheckedInt<int32_t> newYMost = std::max(this->YMost(), aRect.YMost());
|
|
CheckedInt<int32_t> newW = newXMost - newX;
|
|
CheckedInt<int32_t> newH = newYMost - newY;
|
|
if (!newW.isValid() || !newH.isValid()) {
|
|
return Nothing();
|
|
}
|
|
return Some(Self(newX.value(), newY.value(), newW.value(), newH.value()));
|
|
}
|
|
|
|
// This is here only to keep IPDL-generated code happy. DO NOT USE.
|
|
bool operator==(const IntRectTyped<units>& aRect) const {
|
|
return IntRectTyped<units>::IsEqualEdges(aRect);
|
|
}
|
|
|
|
void InflateToMultiple(const IntSizeTyped<units>& aTileSize) {
|
|
if (this->IsEmpty()) {
|
|
return;
|
|
}
|
|
|
|
int32_t yMost = this->YMost();
|
|
int32_t xMost = this->XMost();
|
|
|
|
this->x = mozilla::RoundDownToMultiple(this->x, aTileSize.width);
|
|
this->y = mozilla::RoundDownToMultiple(this->y, aTileSize.height);
|
|
xMost = mozilla::RoundUpToMultiple(xMost, aTileSize.width);
|
|
yMost = mozilla::RoundUpToMultiple(yMost, aTileSize.height);
|
|
|
|
this->SetWidth(xMost - this->x);
|
|
this->SetHeight(yMost - this->y);
|
|
}
|
|
};
|
|
typedef IntRectTyped<UnknownUnits> IntRect;
|
|
|
|
template <class units, class F = Float>
|
|
struct RectTyped : public BaseRect<F, RectTyped<units, F>, PointTyped<units, F>,
|
|
SizeTyped<units, F>, MarginTyped<units, F> >,
|
|
public units {
|
|
static_assert(IsPixel<units>::value,
|
|
"'units' must be a coordinate system tag");
|
|
|
|
typedef BaseRect<F, RectTyped<units, F>, PointTyped<units, F>,
|
|
SizeTyped<units, F>, MarginTyped<units, F> >
|
|
Super;
|
|
|
|
RectTyped() : Super() {}
|
|
RectTyped(const PointTyped<units, F>& aPos, const SizeTyped<units, F>& aSize)
|
|
: Super(aPos, aSize) {}
|
|
RectTyped(F _x, F _y, F _width, F _height) : Super(_x, _y, _width, _height) {}
|
|
explicit RectTyped(const IntRectTyped<units>& rect)
|
|
: Super(F(rect.X()), F(rect.Y()), F(rect.Width()), F(rect.Height())) {}
|
|
|
|
void NudgeToIntegers() {
|
|
NudgeToInteger(&(this->x));
|
|
NudgeToInteger(&(this->y));
|
|
NudgeToInteger(&(this->width));
|
|
NudgeToInteger(&(this->height));
|
|
}
|
|
|
|
bool ToIntRect(IntRectTyped<units>* aOut) const {
|
|
*aOut =
|
|
IntRectTyped<units>(int32_t(this->X()), int32_t(this->Y()),
|
|
int32_t(this->Width()), int32_t(this->Height()));
|
|
return RectTyped<units, F>(F(aOut->X()), F(aOut->Y()), F(aOut->Width()),
|
|
F(aOut->Height()))
|
|
.IsEqualEdges(*this);
|
|
}
|
|
|
|
// XXX When all of the code is ported, the following functions to convert to
|
|
// and from unknown types should be removed.
|
|
|
|
static RectTyped<units, F> FromUnknownRect(
|
|
const RectTyped<UnknownUnits, F>& rect) {
|
|
return RectTyped<units, F>(rect.X(), rect.Y(), rect.Width(), rect.Height());
|
|
}
|
|
|
|
RectTyped<UnknownUnits, F> ToUnknownRect() const {
|
|
return RectTyped<UnknownUnits, F>(this->X(), this->Y(), this->Width(),
|
|
this->Height());
|
|
}
|
|
|
|
// This is here only to keep IPDL-generated code happy. DO NOT USE.
|
|
bool operator==(const RectTyped<units, F>& aRect) const {
|
|
return RectTyped<units, F>::IsEqualEdges(aRect);
|
|
}
|
|
|
|
bool WithinEpsilonOf(const RectTyped& aOther, F aEpsilon) const {
|
|
return fabs(this->x - aOther.x) < aEpsilon &&
|
|
fabs(this->y - aOther.y) < aEpsilon &&
|
|
fabs(this->width - aOther.width) < aEpsilon &&
|
|
fabs(this->height - aOther.height) < aEpsilon;
|
|
}
|
|
};
|
|
typedef RectTyped<UnknownUnits> Rect;
|
|
typedef RectTyped<UnknownUnits, double> RectDouble;
|
|
|
|
template <class units>
|
|
IntRectTyped<units> RoundedToInt(const RectTyped<units>& aRect) {
|
|
RectTyped<units> copy(aRect);
|
|
copy.Round();
|
|
return IntRectTyped<units>(int32_t(copy.X()), int32_t(copy.Y()),
|
|
int32_t(copy.Width()), int32_t(copy.Height()));
|
|
}
|
|
|
|
template <class units>
|
|
bool RectIsInt32Safe(const RectTyped<units>& aRect) {
|
|
float min = (float)std::numeric_limits<std::int32_t>::min();
|
|
float max = (float)std::numeric_limits<std::int32_t>::max();
|
|
return aRect.x > min && aRect.y > min && aRect.width < max &&
|
|
aRect.height < max && aRect.XMost() < max && aRect.YMost() < max;
|
|
}
|
|
|
|
template <class units>
|
|
IntRectTyped<units> RoundedIn(const RectTyped<units>& aRect) {
|
|
return IntRectTyped<units>::RoundIn(aRect);
|
|
}
|
|
|
|
template <class units>
|
|
IntRectTyped<units> RoundedOut(const RectTyped<units>& aRect) {
|
|
return IntRectTyped<units>::RoundOut(aRect);
|
|
}
|
|
|
|
template <class units>
|
|
IntRectTyped<units> TruncatedToInt(const RectTyped<units>& aRect) {
|
|
return IntRectTyped<units>::Truncate(aRect);
|
|
}
|
|
|
|
template <class units>
|
|
RectTyped<units> IntRectToRect(const IntRectTyped<units>& aRect) {
|
|
return RectTyped<units>(aRect.X(), aRect.Y(), aRect.Width(), aRect.Height());
|
|
}
|
|
|
|
// Convenience functions for intersecting and unioning two rectangles wrapped in
|
|
// Maybes.
|
|
template <typename Rect>
|
|
Maybe<Rect> IntersectMaybeRects(const Maybe<Rect>& a, const Maybe<Rect>& b) {
|
|
if (!a) {
|
|
return b;
|
|
} else if (!b) {
|
|
return a;
|
|
} else {
|
|
return Some(a->Intersect(*b));
|
|
}
|
|
}
|
|
template <typename Rect>
|
|
Maybe<Rect> UnionMaybeRects(const Maybe<Rect>& a, const Maybe<Rect>& b) {
|
|
if (!a) {
|
|
return b;
|
|
} else if (!b) {
|
|
return a;
|
|
} else {
|
|
return Some(a->Union(*b));
|
|
}
|
|
}
|
|
|
|
struct RectCornerRadii final {
|
|
Size radii[eCornerCount];
|
|
|
|
RectCornerRadii() = default;
|
|
|
|
explicit RectCornerRadii(Float radius) {
|
|
for (const auto i : mozilla::AllPhysicalCorners()) {
|
|
radii[i].SizeTo(radius, radius);
|
|
}
|
|
}
|
|
|
|
RectCornerRadii(Float radiusX, Float radiusY) {
|
|
for (const auto i : mozilla::AllPhysicalCorners()) {
|
|
radii[i].SizeTo(radiusX, radiusY);
|
|
}
|
|
}
|
|
|
|
RectCornerRadii(Float tl, Float tr, Float br, Float bl) {
|
|
radii[eCornerTopLeft].SizeTo(tl, tl);
|
|
radii[eCornerTopRight].SizeTo(tr, tr);
|
|
radii[eCornerBottomRight].SizeTo(br, br);
|
|
radii[eCornerBottomLeft].SizeTo(bl, bl);
|
|
}
|
|
|
|
RectCornerRadii(const Size& tl, const Size& tr, const Size& br,
|
|
const Size& bl) {
|
|
radii[eCornerTopLeft] = tl;
|
|
radii[eCornerTopRight] = tr;
|
|
radii[eCornerBottomRight] = br;
|
|
radii[eCornerBottomLeft] = bl;
|
|
}
|
|
|
|
const Size& operator[](size_t aCorner) const { return radii[aCorner]; }
|
|
|
|
Size& operator[](size_t aCorner) { return radii[aCorner]; }
|
|
|
|
bool operator==(const RectCornerRadii& aOther) const {
|
|
return TopLeft() == aOther.TopLeft() && TopRight() == aOther.TopRight() &&
|
|
BottomRight() == aOther.BottomRight() &&
|
|
BottomLeft() == aOther.BottomLeft();
|
|
}
|
|
|
|
bool AreRadiiSame() const {
|
|
return TopLeft() == TopRight() && TopLeft() == BottomRight() &&
|
|
TopLeft() == BottomLeft();
|
|
}
|
|
|
|
void Scale(Float aXScale, Float aYScale) {
|
|
for (const auto i : mozilla::AllPhysicalCorners()) {
|
|
radii[i].Scale(aXScale, aYScale);
|
|
}
|
|
}
|
|
|
|
const Size TopLeft() const { return radii[eCornerTopLeft]; }
|
|
Size& TopLeft() { return radii[eCornerTopLeft]; }
|
|
|
|
const Size TopRight() const { return radii[eCornerTopRight]; }
|
|
Size& TopRight() { return radii[eCornerTopRight]; }
|
|
|
|
const Size BottomRight() const { return radii[eCornerBottomRight]; }
|
|
Size& BottomRight() { return radii[eCornerBottomRight]; }
|
|
|
|
const Size BottomLeft() const { return radii[eCornerBottomLeft]; }
|
|
Size& BottomLeft() { return radii[eCornerBottomLeft]; }
|
|
|
|
bool IsEmpty() const {
|
|
return TopLeft().IsEmpty() && TopRight().IsEmpty() &&
|
|
BottomRight().IsEmpty() && BottomLeft().IsEmpty();
|
|
}
|
|
};
|
|
|
|
/* A rounded rectangle abstraction.
|
|
*
|
|
* This can represent a rectangle with a different pair of radii on each corner.
|
|
*
|
|
* Note: CoreGraphics and Direct2D only support rounded rectangle with the same
|
|
* radii on all corners. However, supporting CSS's border-radius requires the
|
|
* extra flexibility. */
|
|
struct RoundedRect {
|
|
typedef mozilla::gfx::RectCornerRadii RectCornerRadii;
|
|
|
|
RoundedRect(const Rect& aRect, const RectCornerRadii& aCorners)
|
|
: rect(aRect), corners(aCorners) {}
|
|
|
|
void Deflate(Float aTopWidth, Float aBottomWidth, Float aLeftWidth,
|
|
Float aRightWidth) {
|
|
// deflate the internal rect
|
|
rect.SetRect(rect.X() + aLeftWidth, rect.Y() + aTopWidth,
|
|
std::max(0.f, rect.Width() - aLeftWidth - aRightWidth),
|
|
std::max(0.f, rect.Height() - aTopWidth - aBottomWidth));
|
|
|
|
corners.radii[mozilla::eCornerTopLeft].width = std::max(
|
|
0.f, corners.radii[mozilla::eCornerTopLeft].width - aLeftWidth);
|
|
corners.radii[mozilla::eCornerTopLeft].height = std::max(
|
|
0.f, corners.radii[mozilla::eCornerTopLeft].height - aTopWidth);
|
|
|
|
corners.radii[mozilla::eCornerTopRight].width = std::max(
|
|
0.f, corners.radii[mozilla::eCornerTopRight].width - aRightWidth);
|
|
corners.radii[mozilla::eCornerTopRight].height = std::max(
|
|
0.f, corners.radii[mozilla::eCornerTopRight].height - aTopWidth);
|
|
|
|
corners.radii[mozilla::eCornerBottomLeft].width = std::max(
|
|
0.f, corners.radii[mozilla::eCornerBottomLeft].width - aLeftWidth);
|
|
corners.radii[mozilla::eCornerBottomLeft].height = std::max(
|
|
0.f, corners.radii[mozilla::eCornerBottomLeft].height - aBottomWidth);
|
|
|
|
corners.radii[mozilla::eCornerBottomRight].width = std::max(
|
|
0.f, corners.radii[mozilla::eCornerBottomRight].width - aRightWidth);
|
|
corners.radii[mozilla::eCornerBottomRight].height = std::max(
|
|
0.f, corners.radii[mozilla::eCornerBottomRight].height - aBottomWidth);
|
|
}
|
|
Rect rect;
|
|
RectCornerRadii corners;
|
|
};
|
|
|
|
} // namespace gfx
|
|
} // namespace mozilla
|
|
|
|
#endif /* MOZILLA_GFX_RECT_H_ */
|