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/*
==============================================================================
This file is part of the JUCE library.
Copyright (c) 2015 - ROLI Ltd.
Permission is granted to use this software under the terms of either:
a) the GPL v2 (or any later version)
b) the Affero GPL v3
Details of these licenses can be found at: www.gnu.org/licenses
JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
------------------------------------------------------------------------------
To release a closed-source product which uses JUCE, commercial licenses are
available: visit www.juce.com for more information.
==============================================================================
*/
RectanglePlacement::RectanglePlacement (const RectanglePlacement& other) noexcept
: flags (other.flags)
{
}
RectanglePlacement& RectanglePlacement::operator= (const RectanglePlacement& other) noexcept
{
flags = other.flags;
return *this;
}
bool RectanglePlacement::operator== (const RectanglePlacement& other) const noexcept
{
return flags == other.flags;
}
bool RectanglePlacement::operator!= (const RectanglePlacement& other) const noexcept
{
return flags != other.flags;
}
void RectanglePlacement::applyTo (double& x, double& y, double& w, double& h,
const double dx, const double dy, const double dw, const double dh) const noexcept
{
if (w == 0 || h == 0)
return;
if ((flags & stretchToFit) != 0)
{
x = dx;
y = dy;
w = dw;
h = dh;
}
else
{
double scale = (flags & fillDestination) != 0 ? jmax (dw / w, dh / h)
: jmin (dw / w, dh / h);
if ((flags & onlyReduceInSize) != 0)
scale = jmin (scale, 1.0);
if ((flags & onlyIncreaseInSize) != 0)
scale = jmax (scale, 1.0);
w *= scale;
h *= scale;
if ((flags & xLeft) != 0)
x = dx;
else if ((flags & xRight) != 0)
x = dx + dw - w;
else
x = dx + (dw - w) * 0.5;
if ((flags & yTop) != 0)
y = dy;
else if ((flags & yBottom) != 0)
y = dy + dh - h;
else
y = dy + (dh - h) * 0.5;
}
}
AffineTransform RectanglePlacement::getTransformToFit (const Rectangle<float>& source, const Rectangle<float>& destination) const noexcept
{
if (source.isEmpty())
return AffineTransform();
float newX = destination.getX();
float newY = destination.getY();
float scaleX = destination.getWidth() / source.getWidth();
float scaleY = destination.getHeight() / source.getHeight();
if ((flags & stretchToFit) == 0)
{
scaleX = (flags & fillDestination) != 0 ? jmax (scaleX, scaleY)
: jmin (scaleX, scaleY);
if ((flags & onlyReduceInSize) != 0)
scaleX = jmin (scaleX, 1.0f);
if ((flags & onlyIncreaseInSize) != 0)
scaleX = jmax (scaleX, 1.0f);
scaleY = scaleX;
if ((flags & xRight) != 0)
newX += destination.getWidth() - source.getWidth() * scaleX; // right
else if ((flags & xLeft) == 0)
newX += (destination.getWidth() - source.getWidth() * scaleX) / 2.0f; // centre
if ((flags & yBottom) != 0)
newY += destination.getHeight() - source.getHeight() * scaleX; // bottom
else if ((flags & yTop) == 0)
newY += (destination.getHeight() - source.getHeight() * scaleX) / 2.0f; // centre
}
return AffineTransform::translation (-source.getX(), -source.getY())
.scaled (scaleX, scaleY)
.translated (newX, newY);
}
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