110 lines
4.5 KiB
C
110 lines
4.5 KiB
C
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/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2017 - ROLI Ltd.
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JUCE is an open source library subject to commercial or open-source
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licensing.
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By using JUCE, you agree to the terms of both the JUCE 5 End-User License
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Agreement and JUCE 5 Privacy Policy (both updated and effective as of the
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27th April 2017).
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End User License Agreement: www.juce.com/juce-5-licence
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Privacy Policy: www.juce.com/juce-5-privacy-policy
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Or: You may also use this code under the terms of the GPL v3 (see
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www.gnu.org/licenses).
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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namespace juce
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{
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//==============================================================================
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/**
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A rectangle stored as a set of RelativeCoordinate values.
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The rectangle's top, left, bottom and right edge positions are each stored as a RelativeCoordinate.
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@see RelativeCoordinate, RelativePoint
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@tags{GUI}
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*/
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class JUCE_API RelativeRectangle
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{
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public:
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//==============================================================================
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/** Creates a zero-size rectangle at the origin. */
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RelativeRectangle();
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/** Creates an absolute rectangle, relative to the origin. */
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explicit RelativeRectangle (const Rectangle<float>& rect);
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/** Creates a rectangle from four coordinates. */
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RelativeRectangle (const RelativeCoordinate& left, const RelativeCoordinate& right,
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const RelativeCoordinate& top, const RelativeCoordinate& bottom);
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/** Creates a rectangle from a stringified representation.
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The string must contain a sequence of 4 coordinates, separated by commas, in the order
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left, top, right, bottom. The syntax for the coordinate strings is explained in the
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RelativeCoordinate class.
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@see toString
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*/
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explicit RelativeRectangle (const String& stringVersion);
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bool operator== (const RelativeRectangle&) const noexcept;
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bool operator!= (const RelativeRectangle&) const noexcept;
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//==============================================================================
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/** Calculates the absolute position of this rectangle.
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You'll need to provide a suitable Expression::Scope for looking up any coordinates that may
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be needed to calculate the result.
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*/
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const Rectangle<float> resolve (const Expression::Scope* scope) const;
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/** Changes the values of this rectangle's coordinates to make it resolve to the specified position.
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Calling this will leave any anchor points unchanged, but will set any absolute
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or relative positions to whatever values are necessary to make the resultant position
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match the position that is provided.
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*/
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void moveToAbsolute (const Rectangle<float>& newPos, const Expression::Scope* scope);
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/** Returns true if this rectangle depends on any external symbols for its position.
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Coordinates that refer to symbols based on "this" are assumed not to be dynamic.
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*/
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bool isDynamic() const;
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/** Returns a string which represents this point.
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This returns a comma-separated list of coordinates, in the order left, top, right, bottom.
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If you're using this to position a Component, then see the notes for
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Component::setBounds (const RelativeRectangle&) for details of the syntax used.
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The string that is returned can be passed to the RelativeRectangle constructor to recreate the rectangle.
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*/
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String toString() const;
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/** Renames a symbol if it is used by any of the coordinates.
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This calls Expression::withRenamedSymbol() on the rectangle's coordinates.
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*/
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void renameSymbol (const Expression::Symbol& oldSymbol, const String& newName, const Expression::Scope& scope);
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/** Creates and sets an appropriate Component::Positioner object for the given component, which will
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keep it positioned with this rectangle.
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*/
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void applyToComponent (Component& component) const;
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//==============================================================================
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// The actual rectangle coords...
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RelativeCoordinate left, right, top, bottom;
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};
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} // namespace juce
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