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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.
==============================================================================
*/
ResizableBorderComponent::Zone::Zone() noexcept
: zone (0)
{}
ResizableBorderComponent::Zone::Zone (const int zoneFlags) noexcept
: zone (zoneFlags)
{}
ResizableBorderComponent::Zone::Zone (const ResizableBorderComponent::Zone& other) noexcept
: zone (other.zone)
{}
ResizableBorderComponent::Zone& ResizableBorderComponent::Zone::operator= (const ResizableBorderComponent::Zone& other) noexcept
{
zone = other.zone;
return *this;
}
bool ResizableBorderComponent::Zone::operator== (const ResizableBorderComponent::Zone& other) const noexcept { return zone == other.zone; }
bool ResizableBorderComponent::Zone::operator!= (const ResizableBorderComponent::Zone& other) const noexcept { return zone != other.zone; }
ResizableBorderComponent::Zone ResizableBorderComponent::Zone::fromPositionOnBorder (const Rectangle<int>& totalSize,
const BorderSize<int>& border,
Point<int> position)
{
int z = 0;
if (totalSize.contains (position)
&& ! border.subtractedFrom (totalSize).contains (position))
{
const int minW = jmax (totalSize.getWidth() / 10, jmin (10, totalSize.getWidth() / 3));
if (position.x < jmax (border.getLeft(), minW) && border.getLeft() > 0)
z |= left;
else if (position.x >= totalSize.getWidth() - jmax (border.getRight(), minW) && border.getRight() > 0)
z |= right;
const int minH = jmax (totalSize.getHeight() / 10, jmin (10, totalSize.getHeight() / 3));
if (position.y < jmax (border.getTop(), minH) && border.getTop() > 0)
z |= top;
else if (position.y >= totalSize.getHeight() - jmax (border.getBottom(), minH) && border.getBottom() > 0)
z |= bottom;
}
return Zone (z);
}
MouseCursor ResizableBorderComponent::Zone::getMouseCursor() const noexcept
{
MouseCursor::StandardCursorType mc = MouseCursor::NormalCursor;
switch (zone)
{
case (left | top): mc = MouseCursor::TopLeftCornerResizeCursor; break;
case top: mc = MouseCursor::TopEdgeResizeCursor; break;
case (right | top): mc = MouseCursor::TopRightCornerResizeCursor; break;
case left: mc = MouseCursor::LeftEdgeResizeCursor; break;
case right: mc = MouseCursor::RightEdgeResizeCursor; break;
case (left | bottom): mc = MouseCursor::BottomLeftCornerResizeCursor; break;
case bottom: mc = MouseCursor::BottomEdgeResizeCursor; break;
case (right | bottom): mc = MouseCursor::BottomRightCornerResizeCursor; break;
default: break;
}
return mc;
}
//==============================================================================
ResizableBorderComponent::ResizableBorderComponent (Component* const componentToResize,
ComponentBoundsConstrainer* const constrainer_)
: component (componentToResize),
constrainer (constrainer_),
borderSize (5),
mouseZone (0)
{
}
ResizableBorderComponent::~ResizableBorderComponent()
{
}
//==============================================================================
void ResizableBorderComponent::paint (Graphics& g)
{
getLookAndFeel().drawResizableFrame (g, getWidth(), getHeight(), borderSize);
}
void ResizableBorderComponent::mouseEnter (const MouseEvent& e)
{
updateMouseZone (e);
}
void ResizableBorderComponent::mouseMove (const MouseEvent& e)
{
updateMouseZone (e);
}
void ResizableBorderComponent::mouseDown (const MouseEvent& e)
{
if (component == nullptr)
{
jassertfalse; // You've deleted the component that this resizer was supposed to be using!
return;
}
updateMouseZone (e);
originalBounds = component->getBounds();
if (constrainer != nullptr)
constrainer->resizeStart();
}
void ResizableBorderComponent::mouseDrag (const MouseEvent& e)
{
if (component == nullptr)
{
jassertfalse; // You've deleted the component that this resizer was supposed to be using!
return;
}
const Rectangle<int> newBounds (mouseZone.resizeRectangleBy (originalBounds, e.getOffsetFromDragStart()));
if (constrainer != nullptr)
{
constrainer->setBoundsForComponent (component, newBounds,
mouseZone.isDraggingTopEdge(),
mouseZone.isDraggingLeftEdge(),
mouseZone.isDraggingBottomEdge(),
mouseZone.isDraggingRightEdge());
}
else
{
if (Component::Positioner* const pos = component->getPositioner())
pos->applyNewBounds (newBounds);
else
component->setBounds (newBounds);
}
}
void ResizableBorderComponent::mouseUp (const MouseEvent&)
{
if (constrainer != nullptr)
constrainer->resizeEnd();
}
bool ResizableBorderComponent::hitTest (int x, int y)
{
return x < borderSize.getLeft()
|| x >= getWidth() - borderSize.getRight()
|| y < borderSize.getTop()
|| y >= getHeight() - borderSize.getBottom();
}
void ResizableBorderComponent::setBorderThickness (const BorderSize<int>& newBorderSize)
{
if (borderSize != newBorderSize)
{
borderSize = newBorderSize;
repaint();
}
}
BorderSize<int> ResizableBorderComponent::getBorderThickness() const
{
return borderSize;
}
void ResizableBorderComponent::updateMouseZone (const MouseEvent& e)
{
Zone newZone (Zone::fromPositionOnBorder (getLocalBounds(), borderSize, e.getPosition()));
if (mouseZone != newZone)
{
mouseZone = newZone;
setMouseCursor (newZone.getMouseCursor());
}
}
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