mirror of
https://github.com/juce-framework/JUCE.git
synced 2026-01-09 23:34:20 +00:00
286 lines
10 KiB
C++
286 lines
10 KiB
C++
/*
|
|
==============================================================================
|
|
|
|
This file is part of the JUCE framework.
|
|
Copyright (c) Raw Material Software Limited
|
|
|
|
JUCE is an open source framework subject to commercial or open source
|
|
licensing.
|
|
|
|
By downloading, installing, or using the JUCE framework, or combining the
|
|
JUCE framework with any other source code, object code, content or any other
|
|
copyrightable work, you agree to the terms of the JUCE End User Licence
|
|
Agreement, and all incorporated terms including the JUCE Privacy Policy and
|
|
the JUCE Website Terms of Service, as applicable, which will bind you. If you
|
|
do not agree to the terms of these agreements, we will not license the JUCE
|
|
framework to you, and you must discontinue the installation or download
|
|
process and cease use of the JUCE framework.
|
|
|
|
JUCE End User Licence Agreement: https://juce.com/legal/juce-8-licence/
|
|
JUCE Privacy Policy: https://juce.com/juce-privacy-policy
|
|
JUCE Website Terms of Service: https://juce.com/juce-website-terms-of-service/
|
|
|
|
Or:
|
|
|
|
You may also use this code under the terms of the AGPLv3:
|
|
https://www.gnu.org/licenses/agpl-3.0.en.html
|
|
|
|
THE JUCE FRAMEWORK IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL
|
|
WARRANTIES, WHETHER EXPRESSED OR IMPLIED, INCLUDING WARRANTY OF
|
|
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE DISCLAIMED.
|
|
|
|
==============================================================================
|
|
*/
|
|
|
|
namespace juce
|
|
{
|
|
|
|
namespace RelativeRectangleHelpers
|
|
{
|
|
inline void skipComma (String::CharPointerType& s)
|
|
{
|
|
s.incrementToEndOfWhitespace();
|
|
|
|
if (*s == ',')
|
|
++s;
|
|
}
|
|
|
|
static bool dependsOnSymbolsOtherThanThis (const Expression& e)
|
|
{
|
|
if (e.getType() == Expression::operatorType && e.getSymbolOrFunction() == ".")
|
|
return true;
|
|
|
|
if (e.getType() == Expression::symbolType)
|
|
{
|
|
switch (RelativeCoordinate::StandardStrings::getTypeOf (e.getSymbolOrFunction()))
|
|
{
|
|
case RelativeCoordinate::StandardStrings::x:
|
|
case RelativeCoordinate::StandardStrings::y:
|
|
case RelativeCoordinate::StandardStrings::left:
|
|
case RelativeCoordinate::StandardStrings::right:
|
|
case RelativeCoordinate::StandardStrings::top:
|
|
case RelativeCoordinate::StandardStrings::bottom: return false;
|
|
case RelativeCoordinate::StandardStrings::width:
|
|
case RelativeCoordinate::StandardStrings::height:
|
|
case RelativeCoordinate::StandardStrings::parent:
|
|
case RelativeCoordinate::StandardStrings::unknown:
|
|
|
|
default: break;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
for (int i = e.getNumInputs(); --i >= 0;)
|
|
if (dependsOnSymbolsOtherThanThis (e.getInput (i)))
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
}
|
|
|
|
//==============================================================================
|
|
RelativeRectangle::RelativeRectangle()
|
|
{
|
|
}
|
|
|
|
RelativeRectangle::RelativeRectangle (const RelativeCoordinate& left_, const RelativeCoordinate& right_,
|
|
const RelativeCoordinate& top_, const RelativeCoordinate& bottom_)
|
|
: left (left_), right (right_), top (top_), bottom (bottom_)
|
|
{
|
|
}
|
|
|
|
RelativeRectangle::RelativeRectangle (const Rectangle<float>& rect)
|
|
: left (rect.getX()),
|
|
right (Expression::symbol (RelativeCoordinate::Strings::left) + Expression ((double) rect.getWidth())),
|
|
top (rect.getY()),
|
|
bottom (Expression::symbol (RelativeCoordinate::Strings::top) + Expression ((double) rect.getHeight()))
|
|
{
|
|
}
|
|
|
|
RelativeRectangle::RelativeRectangle (const String& s)
|
|
{
|
|
String error;
|
|
String::CharPointerType text (s.getCharPointer());
|
|
left = RelativeCoordinate (Expression::parse (text, error));
|
|
RelativeRectangleHelpers::skipComma (text);
|
|
top = RelativeCoordinate (Expression::parse (text, error));
|
|
RelativeRectangleHelpers::skipComma (text);
|
|
right = RelativeCoordinate (Expression::parse (text, error));
|
|
RelativeRectangleHelpers::skipComma (text);
|
|
bottom = RelativeCoordinate (Expression::parse (text, error));
|
|
}
|
|
|
|
bool RelativeRectangle::operator== (const RelativeRectangle& other) const noexcept
|
|
{
|
|
return left == other.left && top == other.top && right == other.right && bottom == other.bottom;
|
|
}
|
|
|
|
bool RelativeRectangle::operator!= (const RelativeRectangle& other) const noexcept
|
|
{
|
|
return ! operator== (other);
|
|
}
|
|
|
|
//==============================================================================
|
|
// An expression context that can evaluate expressions using "this"
|
|
class RelativeRectangleLocalScope final : public Expression::Scope
|
|
{
|
|
public:
|
|
RelativeRectangleLocalScope (const RelativeRectangle& rect_) : rect (rect_) {}
|
|
|
|
Expression getSymbolValue (const String& symbol) const override
|
|
{
|
|
switch (RelativeCoordinate::StandardStrings::getTypeOf (symbol))
|
|
{
|
|
case RelativeCoordinate::StandardStrings::x:
|
|
case RelativeCoordinate::StandardStrings::left: return rect.left.getExpression();
|
|
case RelativeCoordinate::StandardStrings::y:
|
|
case RelativeCoordinate::StandardStrings::top: return rect.top.getExpression();
|
|
case RelativeCoordinate::StandardStrings::right: return rect.right.getExpression();
|
|
case RelativeCoordinate::StandardStrings::bottom: return rect.bottom.getExpression();
|
|
case RelativeCoordinate::StandardStrings::width:
|
|
case RelativeCoordinate::StandardStrings::height:
|
|
case RelativeCoordinate::StandardStrings::parent:
|
|
case RelativeCoordinate::StandardStrings::unknown:
|
|
default: break;
|
|
}
|
|
|
|
return Expression::Scope::getSymbolValue (symbol);
|
|
}
|
|
|
|
private:
|
|
const RelativeRectangle& rect;
|
|
|
|
JUCE_DECLARE_NON_COPYABLE (RelativeRectangleLocalScope)
|
|
};
|
|
|
|
const Rectangle<float> RelativeRectangle::resolve (const Expression::Scope* scope) const
|
|
{
|
|
if (scope == nullptr)
|
|
{
|
|
RelativeRectangleLocalScope defaultScope (*this);
|
|
return resolve (&defaultScope);
|
|
}
|
|
else
|
|
{
|
|
const double l = left.resolve (scope);
|
|
const double r = right.resolve (scope);
|
|
const double t = top.resolve (scope);
|
|
const double b = bottom.resolve (scope);
|
|
|
|
return Rectangle<float> ((float) l, (float) t, (float) jmax (0.0, r - l), (float) jmax (0.0, b - t));
|
|
}
|
|
}
|
|
|
|
void RelativeRectangle::moveToAbsolute (const Rectangle<float>& newPos, const Expression::Scope* scope)
|
|
{
|
|
left.moveToAbsolute (newPos.getX(), scope);
|
|
right.moveToAbsolute (newPos.getRight(), scope);
|
|
top.moveToAbsolute (newPos.getY(), scope);
|
|
bottom.moveToAbsolute (newPos.getBottom(), scope);
|
|
}
|
|
|
|
bool RelativeRectangle::isDynamic() const
|
|
{
|
|
using namespace RelativeRectangleHelpers;
|
|
|
|
return dependsOnSymbolsOtherThanThis (left.getExpression())
|
|
|| dependsOnSymbolsOtherThanThis (right.getExpression())
|
|
|| dependsOnSymbolsOtherThanThis (top.getExpression())
|
|
|| dependsOnSymbolsOtherThanThis (bottom.getExpression());
|
|
}
|
|
|
|
String RelativeRectangle::toString() const
|
|
{
|
|
return left.toString() + ", " + top.toString() + ", " + right.toString() + ", " + bottom.toString();
|
|
}
|
|
|
|
void RelativeRectangle::renameSymbol (const Expression::Symbol& oldSymbol, const String& newName, const Expression::Scope& scope)
|
|
{
|
|
left = left.getExpression().withRenamedSymbol (oldSymbol, newName, scope);
|
|
right = right.getExpression().withRenamedSymbol (oldSymbol, newName, scope);
|
|
top = top.getExpression().withRenamedSymbol (oldSymbol, newName, scope);
|
|
bottom = bottom.getExpression().withRenamedSymbol (oldSymbol, newName, scope);
|
|
}
|
|
|
|
//==============================================================================
|
|
class RelativeRectangleComponentPositioner final : public RelativeCoordinatePositionerBase
|
|
{
|
|
public:
|
|
RelativeRectangleComponentPositioner (Component& comp, const RelativeRectangle& r)
|
|
: RelativeCoordinatePositionerBase (comp),
|
|
rectangle (r)
|
|
{
|
|
}
|
|
|
|
bool registerCoordinates() override
|
|
{
|
|
bool ok = addCoordinate (rectangle.left);
|
|
ok = addCoordinate (rectangle.right) && ok;
|
|
ok = addCoordinate (rectangle.top) && ok;
|
|
ok = addCoordinate (rectangle.bottom) && ok;
|
|
return ok;
|
|
}
|
|
|
|
bool isUsingRectangle (const RelativeRectangle& other) const noexcept
|
|
{
|
|
return rectangle == other;
|
|
}
|
|
|
|
void applyToComponentBounds() override
|
|
{
|
|
for (int i = 32; --i >= 0;)
|
|
{
|
|
ComponentScope scope (getComponent());
|
|
const Rectangle<int> newBounds (rectangle.resolve (&scope).getSmallestIntegerContainer());
|
|
|
|
if (newBounds == getComponent().getBounds())
|
|
return;
|
|
|
|
getComponent().setBounds (newBounds);
|
|
}
|
|
|
|
jassertfalse; // Seems to be a recursive reference!
|
|
}
|
|
|
|
void applyNewBounds (const Rectangle<int>& newBounds) override
|
|
{
|
|
if (newBounds != getComponent().getBounds())
|
|
{
|
|
ComponentScope scope (getComponent());
|
|
rectangle.moveToAbsolute (newBounds.toFloat(), &scope);
|
|
|
|
applyToComponentBounds();
|
|
}
|
|
}
|
|
|
|
private:
|
|
RelativeRectangle rectangle;
|
|
|
|
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (RelativeRectangleComponentPositioner)
|
|
};
|
|
|
|
void RelativeRectangle::applyToComponent (Component& component) const
|
|
{
|
|
if (isDynamic())
|
|
{
|
|
RelativeRectangleComponentPositioner* current = dynamic_cast<RelativeRectangleComponentPositioner*> (component.getPositioner());
|
|
|
|
if (current == nullptr || ! current->isUsingRectangle (*this))
|
|
{
|
|
RelativeRectangleComponentPositioner* p = new RelativeRectangleComponentPositioner (component, *this);
|
|
|
|
component.setPositioner (p);
|
|
p->apply();
|
|
}
|
|
}
|
|
else
|
|
{
|
|
component.setPositioner (nullptr);
|
|
component.setBounds (resolve (nullptr).getSmallestIntegerContainer());
|
|
}
|
|
}
|
|
|
|
} // namespace juce
|