mirror of
https://github.com/flutter/flutter.git
synced 2026-02-20 02:29:02 +08:00
287 lines
10 KiB
C++
287 lines
10 KiB
C++
/*
|
|
* Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer in the documentation and/or other materials
|
|
* provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER "AS IS" AND ANY
|
|
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
|
|
* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
|
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
|
|
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
|
|
* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef BasicShapes_h
|
|
#define BasicShapes_h
|
|
|
|
#include "core/rendering/style/RenderStyleConstants.h"
|
|
#include "platform/Length.h"
|
|
#include "platform/LengthSize.h"
|
|
#include "platform/graphics/GraphicsTypes.h"
|
|
#include "wtf/RefCounted.h"
|
|
#include "wtf/RefPtr.h"
|
|
#include "wtf/Vector.h"
|
|
|
|
namespace blink {
|
|
|
|
class FloatRect;
|
|
class FloatSize;
|
|
class Path;
|
|
|
|
class BasicShape : public RefCounted<BasicShape> {
|
|
public:
|
|
virtual ~BasicShape() { }
|
|
|
|
enum Type {
|
|
BasicShapeEllipseType,
|
|
BasicShapePolygonType,
|
|
BasicShapeCircleType,
|
|
BasicShapeInsetType
|
|
};
|
|
|
|
bool canBlend(const BasicShape*) const;
|
|
bool isSameType(const BasicShape& other) const { return type() == other.type(); }
|
|
|
|
virtual void path(Path&, const FloatRect&) = 0;
|
|
virtual WindRule windRule() const { return RULE_NONZERO; }
|
|
virtual PassRefPtr<BasicShape> blend(const BasicShape*, double) const = 0;
|
|
virtual bool operator==(const BasicShape&) const = 0;
|
|
|
|
virtual Type type() const = 0;
|
|
|
|
protected:
|
|
BasicShape()
|
|
{
|
|
}
|
|
|
|
};
|
|
|
|
#define DEFINE_BASICSHAPE_TYPE_CASTS(thisType) \
|
|
DEFINE_TYPE_CASTS(thisType, BasicShape, value, value->type() == BasicShape::thisType##Type, value.type() == BasicShape::thisType##Type)
|
|
|
|
class BasicShapeCenterCoordinate {
|
|
public:
|
|
enum Direction {
|
|
TopLeft,
|
|
BottomRight
|
|
};
|
|
|
|
BasicShapeCenterCoordinate(Direction direction = TopLeft, const Length& length = Length(0, Fixed))
|
|
: m_direction(direction)
|
|
, m_length(length)
|
|
, m_computedLength(direction == TopLeft ? length : length.subtractFromOneHundredPercent())
|
|
{
|
|
}
|
|
|
|
BasicShapeCenterCoordinate(const BasicShapeCenterCoordinate& other)
|
|
: m_direction(other.direction())
|
|
, m_length(other.length())
|
|
, m_computedLength(other.m_computedLength)
|
|
{
|
|
}
|
|
|
|
bool operator==(const BasicShapeCenterCoordinate& other) const { return m_direction == other.m_direction && m_length == other.m_length && m_computedLength == other.m_computedLength; }
|
|
|
|
Direction direction() const { return m_direction; }
|
|
const Length& length() const { return m_length; }
|
|
const Length& computedLength() const { return m_computedLength; }
|
|
|
|
BasicShapeCenterCoordinate blend(const BasicShapeCenterCoordinate& other, double progress) const
|
|
{
|
|
return BasicShapeCenterCoordinate(TopLeft, m_computedLength.blend(other.m_computedLength, progress, ValueRangeAll));
|
|
}
|
|
|
|
private:
|
|
Direction m_direction;
|
|
Length m_length;
|
|
Length m_computedLength;
|
|
};
|
|
|
|
class BasicShapeRadius {
|
|
public:
|
|
enum Type {
|
|
Value,
|
|
ClosestSide,
|
|
FarthestSide
|
|
};
|
|
BasicShapeRadius() : m_type(ClosestSide) { }
|
|
explicit BasicShapeRadius(const Length& v) : m_value(v), m_type(Value) { }
|
|
explicit BasicShapeRadius(Type t) : m_type(t) { }
|
|
BasicShapeRadius(const BasicShapeRadius& other) : m_value(other.value()), m_type(other.type()) { }
|
|
bool operator==(const BasicShapeRadius& other) const { return m_type == other.m_type && m_value == other.m_value; }
|
|
|
|
const Length& value() const { return m_value; }
|
|
Type type() const { return m_type; }
|
|
|
|
bool canBlend(const BasicShapeRadius& other) const
|
|
{
|
|
// FIXME determine how to interpolate between keywords. See issue 330248.
|
|
return m_type == Value && other.type() == Value;
|
|
}
|
|
|
|
BasicShapeRadius blend(const BasicShapeRadius& other, double progress) const
|
|
{
|
|
if (m_type != Value || other.type() != Value)
|
|
return BasicShapeRadius(other);
|
|
|
|
return BasicShapeRadius(m_value.blend(other.value(), progress, ValueRangeNonNegative));
|
|
}
|
|
|
|
private:
|
|
Length m_value;
|
|
Type m_type;
|
|
|
|
};
|
|
|
|
class BasicShapeCircle FINAL : public BasicShape {
|
|
public:
|
|
static PassRefPtr<BasicShapeCircle> create() { return adoptRef(new BasicShapeCircle); }
|
|
|
|
const BasicShapeCenterCoordinate& centerX() const { return m_centerX; }
|
|
const BasicShapeCenterCoordinate& centerY() const { return m_centerY; }
|
|
const BasicShapeRadius& radius() const { return m_radius; }
|
|
|
|
float floatValueForRadiusInBox(FloatSize) const;
|
|
void setCenterX(BasicShapeCenterCoordinate centerX) { m_centerX = centerX; }
|
|
void setCenterY(BasicShapeCenterCoordinate centerY) { m_centerY = centerY; }
|
|
void setRadius(BasicShapeRadius radius) { m_radius = radius; }
|
|
|
|
virtual void path(Path&, const FloatRect&) OVERRIDE;
|
|
virtual PassRefPtr<BasicShape> blend(const BasicShape*, double) const OVERRIDE;
|
|
virtual bool operator==(const BasicShape&) const OVERRIDE;
|
|
|
|
virtual Type type() const OVERRIDE { return BasicShapeCircleType; }
|
|
private:
|
|
BasicShapeCircle() { }
|
|
|
|
BasicShapeCenterCoordinate m_centerX;
|
|
BasicShapeCenterCoordinate m_centerY;
|
|
BasicShapeRadius m_radius;
|
|
};
|
|
|
|
DEFINE_BASICSHAPE_TYPE_CASTS(BasicShapeCircle);
|
|
|
|
class BasicShapeEllipse FINAL : public BasicShape {
|
|
public:
|
|
static PassRefPtr<BasicShapeEllipse> create() { return adoptRef(new BasicShapeEllipse); }
|
|
|
|
const BasicShapeCenterCoordinate& centerX() const { return m_centerX; }
|
|
const BasicShapeCenterCoordinate& centerY() const { return m_centerY; }
|
|
const BasicShapeRadius& radiusX() const { return m_radiusX; }
|
|
const BasicShapeRadius& radiusY() const { return m_radiusY; }
|
|
float floatValueForRadiusInBox(const BasicShapeRadius&, float center, float boxWidthOrHeight) const;
|
|
|
|
void setCenterX(BasicShapeCenterCoordinate centerX) { m_centerX = centerX; }
|
|
void setCenterY(BasicShapeCenterCoordinate centerY) { m_centerY = centerY; }
|
|
void setRadiusX(BasicShapeRadius radiusX) { m_radiusX = radiusX; }
|
|
void setRadiusY(BasicShapeRadius radiusY) { m_radiusY = radiusY; }
|
|
|
|
virtual void path(Path&, const FloatRect&) OVERRIDE;
|
|
virtual PassRefPtr<BasicShape> blend(const BasicShape*, double) const OVERRIDE;
|
|
virtual bool operator==(const BasicShape&) const OVERRIDE;
|
|
|
|
virtual Type type() const OVERRIDE { return BasicShapeEllipseType; }
|
|
private:
|
|
BasicShapeEllipse() { }
|
|
|
|
BasicShapeCenterCoordinate m_centerX;
|
|
BasicShapeCenterCoordinate m_centerY;
|
|
BasicShapeRadius m_radiusX;
|
|
BasicShapeRadius m_radiusY;
|
|
};
|
|
|
|
DEFINE_BASICSHAPE_TYPE_CASTS(BasicShapeEllipse);
|
|
|
|
class BasicShapePolygon FINAL : public BasicShape {
|
|
public:
|
|
static PassRefPtr<BasicShapePolygon> create() { return adoptRef(new BasicShapePolygon); }
|
|
|
|
const Vector<Length>& values() const { return m_values; }
|
|
Length getXAt(unsigned i) const { return m_values.at(2 * i); }
|
|
Length getYAt(unsigned i) const { return m_values.at(2 * i + 1); }
|
|
|
|
void setWindRule(WindRule windRule) { m_windRule = windRule; }
|
|
void appendPoint(const Length& x, const Length& y) { m_values.append(x); m_values.append(y); }
|
|
|
|
virtual void path(Path&, const FloatRect&) OVERRIDE;
|
|
virtual PassRefPtr<BasicShape> blend(const BasicShape*, double) const OVERRIDE;
|
|
virtual bool operator==(const BasicShape&) const OVERRIDE;
|
|
|
|
virtual WindRule windRule() const OVERRIDE { return m_windRule; }
|
|
|
|
virtual Type type() const OVERRIDE { return BasicShapePolygonType; }
|
|
private:
|
|
BasicShapePolygon()
|
|
: m_windRule(RULE_NONZERO)
|
|
{ }
|
|
|
|
WindRule m_windRule;
|
|
Vector<Length> m_values;
|
|
};
|
|
|
|
DEFINE_BASICSHAPE_TYPE_CASTS(BasicShapePolygon);
|
|
|
|
class BasicShapeInset : public BasicShape {
|
|
public:
|
|
static PassRefPtr<BasicShapeInset> create() { return adoptRef(new BasicShapeInset); }
|
|
|
|
const Length& top() const { return m_top; }
|
|
const Length& right() const { return m_right; }
|
|
const Length& bottom() const { return m_bottom; }
|
|
const Length& left() const { return m_left; }
|
|
|
|
const LengthSize& topLeftRadius() const { return m_topLeftRadius; }
|
|
const LengthSize& topRightRadius() const { return m_topRightRadius; }
|
|
const LengthSize& bottomRightRadius() const { return m_bottomRightRadius; }
|
|
const LengthSize& bottomLeftRadius() const { return m_bottomLeftRadius; }
|
|
|
|
void setTop(const Length& top) { m_top = top; }
|
|
void setRight(const Length& right) { m_right = right; }
|
|
void setBottom(const Length& bottom) { m_bottom = bottom; }
|
|
void setLeft(const Length& left) { m_left = left; }
|
|
|
|
void setTopLeftRadius(const LengthSize& radius) { m_topLeftRadius = radius; }
|
|
void setTopRightRadius(const LengthSize& radius) { m_topRightRadius = radius; }
|
|
void setBottomRightRadius(const LengthSize& radius) { m_bottomRightRadius = radius; }
|
|
void setBottomLeftRadius(const LengthSize& radius) { m_bottomLeftRadius = radius; }
|
|
|
|
virtual void path(Path&, const FloatRect&) OVERRIDE;
|
|
virtual PassRefPtr<BasicShape> blend(const BasicShape*, double) const OVERRIDE;
|
|
virtual bool operator==(const BasicShape&) const OVERRIDE;
|
|
|
|
virtual Type type() const OVERRIDE { return BasicShapeInsetType; }
|
|
private:
|
|
BasicShapeInset() { }
|
|
|
|
Length m_right;
|
|
Length m_top;
|
|
Length m_bottom;
|
|
Length m_left;
|
|
|
|
LengthSize m_topLeftRadius;
|
|
LengthSize m_topRightRadius;
|
|
LengthSize m_bottomRightRadius;
|
|
LengthSize m_bottomLeftRadius;
|
|
};
|
|
|
|
DEFINE_BASICSHAPE_TYPE_CASTS(BasicShapeInset);
|
|
|
|
}
|
|
#endif
|