mirror of
https://github.com/juce-framework/JUCE.git
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393 lines
13 KiB
C++
393 lines
13 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE library - "Jules' Utility Class Extensions"
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Copyright 2004-9 by Raw Material Software Ltd.
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------------------------------------------------------------------------------
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JUCE can be redistributed and/or modified under the terms of the GNU General
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Public License (Version 2), as published by the Free Software Foundation.
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A copy of the license is included in the JUCE distribution, or can be found
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online at www.gnu.org/licenses.
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JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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------------------------------------------------------------------------------
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To release a closed-source product which uses JUCE, commercial licenses are
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available: visit www.rawmaterialsoftware.com/juce for more information.
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==============================================================================
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*/
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#include "../../../core/juce_StandardHeader.h"
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BEGIN_JUCE_NAMESPACE
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#include "juce_PositionedRectangle.h"
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//==============================================================================
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PositionedRectangle::PositionedRectangle() throw()
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: x (0.0),
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y (0.0),
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w (0.0),
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h (0.0),
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xMode (anchorAtLeftOrTop | absoluteFromParentTopLeft),
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yMode (anchorAtLeftOrTop | absoluteFromParentTopLeft),
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wMode (absoluteSize),
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hMode (absoluteSize)
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{
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}
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PositionedRectangle::PositionedRectangle (const PositionedRectangle& other) throw()
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: x (other.x),
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y (other.y),
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w (other.w),
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h (other.h),
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xMode (other.xMode),
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yMode (other.yMode),
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wMode (other.wMode),
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hMode (other.hMode)
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{
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}
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const PositionedRectangle& PositionedRectangle::operator= (const PositionedRectangle& other) throw()
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{
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if (this != &other)
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{
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x = other.x;
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y = other.y;
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w = other.w;
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h = other.h;
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xMode = other.xMode;
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yMode = other.yMode;
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wMode = other.wMode;
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hMode = other.hMode;
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}
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return *this;
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}
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PositionedRectangle::~PositionedRectangle() throw()
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{
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}
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const bool PositionedRectangle::operator== (const PositionedRectangle& other) const throw()
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{
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return x == other.x
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&& y == other.y
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&& w == other.w
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&& h == other.h
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&& xMode == other.xMode
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&& yMode == other.yMode
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&& wMode == other.wMode
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&& hMode == other.hMode;
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}
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const bool PositionedRectangle::operator!= (const PositionedRectangle& other) const throw()
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{
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return ! operator== (other);
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}
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//==============================================================================
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PositionedRectangle::PositionedRectangle (const String& stringVersion) throw()
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{
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StringArray tokens;
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tokens.addTokens (stringVersion, false);
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decodePosString (tokens [0], xMode, x);
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decodePosString (tokens [1], yMode, y);
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decodeSizeString (tokens [2], wMode, w);
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decodeSizeString (tokens [3], hMode, h);
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}
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const String PositionedRectangle::toString() const throw()
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{
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String s;
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s.preallocateStorage (12);
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addPosDescription (s, xMode, x);
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s << T(' ');
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addPosDescription (s, yMode, y);
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s << T(' ');
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addSizeDescription (s, wMode, w);
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s << T(' ');
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addSizeDescription (s, hMode, h);
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return s;
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}
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//==============================================================================
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const Rectangle PositionedRectangle::getRectangle (const Rectangle& target) const throw()
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{
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jassert (! target.isEmpty());
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double x_, y_, w_, h_;
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applyPosAndSize (x_, w_, x, w, xMode, wMode, target.getX(), target.getWidth());
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applyPosAndSize (y_, h_, y, h, yMode, hMode, target.getY(), target.getHeight());
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return Rectangle (roundToInt (x_), roundToInt (y_),
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roundToInt (w_), roundToInt (h_));
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}
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void PositionedRectangle::getRectangleDouble (const Rectangle& target,
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double& x_, double& y_,
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double& w_, double& h_) const throw()
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{
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jassert (! target.isEmpty());
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applyPosAndSize (x_, w_, x, w, xMode, wMode, target.getX(), target.getWidth());
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applyPosAndSize (y_, h_, y, h, yMode, hMode, target.getY(), target.getHeight());
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}
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void PositionedRectangle::applyToComponent (Component& comp) const throw()
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{
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comp.setBounds (getRectangle (Rectangle (0, 0, comp.getParentWidth(), comp.getParentHeight())));
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}
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//==============================================================================
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void PositionedRectangle::updateFrom (const Rectangle& rectangle,
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const Rectangle& target) throw()
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{
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updatePosAndSize (x, w, rectangle.getX(), rectangle.getWidth(), xMode, wMode, target.getX(), target.getWidth());
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updatePosAndSize (y, h, rectangle.getY(), rectangle.getHeight(), yMode, hMode, target.getY(), target.getHeight());
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}
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void PositionedRectangle::updateFromDouble (const double newX, const double newY,
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const double newW, const double newH,
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const Rectangle& target) throw()
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{
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updatePosAndSize (x, w, newX, newW, xMode, wMode, target.getX(), target.getWidth());
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updatePosAndSize (y, h, newY, newH, yMode, hMode, target.getY(), target.getHeight());
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}
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void PositionedRectangle::updateFromComponent (const Component& comp) throw()
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{
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if (comp.getParentComponent() == 0 && ! comp.isOnDesktop())
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updateFrom (comp.getBounds(), Rectangle());
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else
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updateFrom (comp.getBounds(), Rectangle (0, 0, comp.getParentWidth(), comp.getParentHeight()));
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}
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//==============================================================================
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PositionedRectangle::AnchorPoint PositionedRectangle::getAnchorPointX() const throw()
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{
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return (AnchorPoint) (xMode & (anchorAtLeftOrTop | anchorAtRightOrBottom | anchorAtCentre));
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}
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PositionedRectangle::PositionMode PositionedRectangle::getPositionModeX() const throw()
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{
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return (PositionMode) (xMode & (absoluteFromParentTopLeft
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| absoluteFromParentBottomRight
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| absoluteFromParentCentre
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| proportionOfParentSize));
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}
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PositionedRectangle::AnchorPoint PositionedRectangle::getAnchorPointY() const throw()
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{
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return (AnchorPoint) (yMode & (anchorAtLeftOrTop | anchorAtRightOrBottom | anchorAtCentre));
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}
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PositionedRectangle::PositionMode PositionedRectangle::getPositionModeY() const throw()
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{
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return (PositionMode) (yMode & (absoluteFromParentTopLeft
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| absoluteFromParentBottomRight
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| absoluteFromParentCentre
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| proportionOfParentSize));
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}
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PositionedRectangle::SizeMode PositionedRectangle::getWidthMode() const throw()
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{
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return (SizeMode) wMode;
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}
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PositionedRectangle::SizeMode PositionedRectangle::getHeightMode() const throw()
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{
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return (SizeMode) hMode;
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}
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void PositionedRectangle::setModes (const AnchorPoint xAnchor,
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const PositionMode xMode_,
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const AnchorPoint yAnchor,
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const PositionMode yMode_,
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const SizeMode widthMode,
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const SizeMode heightMode,
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const Rectangle& target) throw()
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{
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if (xMode != (xAnchor | xMode_) || wMode != widthMode)
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{
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double tx, tw;
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applyPosAndSize (tx, tw, x, w, xMode, wMode, target.getX(), target.getWidth());
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xMode = (uint8) (xAnchor | xMode_);
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wMode = (uint8) widthMode;
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updatePosAndSize (x, w, tx, tw, xMode, wMode, target.getX(), target.getWidth());
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}
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if (yMode != (yAnchor | yMode_) || hMode != heightMode)
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{
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double ty, th;
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applyPosAndSize (ty, th, y, h, yMode, hMode, target.getY(), target.getHeight());
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yMode = (uint8) (yAnchor | yMode_);
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hMode = (uint8) heightMode;
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updatePosAndSize (y, h, ty, th, yMode, hMode, target.getY(), target.getHeight());
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}
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}
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bool PositionedRectangle::isPositionAbsolute() const throw()
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{
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return xMode == absoluteFromParentTopLeft
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&& yMode == absoluteFromParentTopLeft
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&& wMode == absoluteSize
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&& hMode == absoluteSize;
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}
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//==============================================================================
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void PositionedRectangle::addPosDescription (String& s, const uint8 mode, const double value) const throw()
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{
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if ((mode & proportionOfParentSize) != 0)
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{
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s << (roundToInt (value * 100000.0) / 1000.0) << T('%');
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}
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else
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{
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s << (roundToInt (value * 100.0) / 100.0);
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if ((mode & absoluteFromParentBottomRight) != 0)
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s << T('R');
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else if ((mode & absoluteFromParentCentre) != 0)
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s << T('C');
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}
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if ((mode & anchorAtRightOrBottom) != 0)
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s << T('r');
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else if ((mode & anchorAtCentre) != 0)
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s << T('c');
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}
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void PositionedRectangle::addSizeDescription (String& s, const uint8 mode, const double value) const throw()
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{
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if (mode == proportionalSize)
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s << (roundToInt (value * 100000.0) / 1000.0) << T('%');
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else if (mode == parentSizeMinusAbsolute)
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s << (roundToInt (value * 100.0) / 100.0) << T('M');
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else
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s << (roundToInt (value * 100.0) / 100.0);
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}
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void PositionedRectangle::decodePosString (const String& s, uint8& mode, double& value) throw()
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{
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if (s.containsChar (T('r')))
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mode = anchorAtRightOrBottom;
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else if (s.containsChar (T('c')))
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mode = anchorAtCentre;
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else
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mode = anchorAtLeftOrTop;
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if (s.containsChar (T('%')))
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{
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mode |= proportionOfParentSize;
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value = s.removeCharacters (T("%rcRC")).getDoubleValue() / 100.0;
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}
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else
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{
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if (s.containsChar (T('R')))
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mode |= absoluteFromParentBottomRight;
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else if (s.containsChar (T('C')))
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mode |= absoluteFromParentCentre;
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else
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mode |= absoluteFromParentTopLeft;
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value = s.removeCharacters (T("rcRC")).getDoubleValue();
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}
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}
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void PositionedRectangle::decodeSizeString (const String& s, uint8& mode, double& value) throw()
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{
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if (s.containsChar (T('%')))
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{
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mode = proportionalSize;
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value = s.upToFirstOccurrenceOf (T("%"), false, false).getDoubleValue() / 100.0;
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}
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else if (s.containsChar (T('M')))
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{
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mode = parentSizeMinusAbsolute;
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value = s.getDoubleValue();
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}
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else
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{
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mode = absoluteSize;
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value = s.getDoubleValue();
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}
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}
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void PositionedRectangle::applyPosAndSize (double& xOut, double& wOut,
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const double x_, const double w_,
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const uint8 xMode_, const uint8 wMode_,
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const int parentPos,
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const int parentSize) const throw()
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{
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if (wMode_ == proportionalSize)
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wOut = roundToInt (w_ * parentSize);
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else if (wMode_ == parentSizeMinusAbsolute)
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wOut = jmax (0, parentSize - roundToInt (w_));
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else
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wOut = roundToInt (w_);
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if ((xMode_ & proportionOfParentSize) != 0)
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xOut = parentPos + x_ * parentSize;
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else if ((xMode_ & absoluteFromParentBottomRight) != 0)
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xOut = (parentPos + parentSize) - x_;
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else if ((xMode_ & absoluteFromParentCentre) != 0)
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xOut = x_ + (parentPos + parentSize / 2);
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else
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xOut = x_ + parentPos;
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if ((xMode_ & anchorAtRightOrBottom) != 0)
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xOut -= wOut;
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else if ((xMode_ & anchorAtCentre) != 0)
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xOut -= wOut / 2;
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}
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void PositionedRectangle::updatePosAndSize (double& xOut, double& wOut,
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double x_, const double w_,
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const uint8 xMode_, const uint8 wMode_,
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const int parentPos,
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const int parentSize) const throw()
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{
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if (wMode_ == proportionalSize)
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{
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if (parentSize > 0)
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wOut = w_ / parentSize;
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}
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else if (wMode_ == parentSizeMinusAbsolute)
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wOut = parentSize - w_;
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else
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wOut = w_;
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if ((xMode_ & anchorAtRightOrBottom) != 0)
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x_ += w_;
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else if ((xMode_ & anchorAtCentre) != 0)
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x_ += w_ / 2;
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if ((xMode_ & proportionOfParentSize) != 0)
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{
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if (parentSize > 0)
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xOut = (x_ - parentPos) / parentSize;
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}
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else if ((xMode_ & absoluteFromParentBottomRight) != 0)
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xOut = (parentPos + parentSize) - x_;
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else if ((xMode_ & absoluteFromParentCentre) != 0)
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xOut = x_ - (parentPos + parentSize / 2);
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else
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xOut = x_ - parentPos;
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}
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END_JUCE_NAMESPACE
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