1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
/*
==============================================================================
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.
==============================================================================
*/
ResizableEdgeComponent::ResizableEdgeComponent (Component* const componentToResize,
ComponentBoundsConstrainer* const constrainer_,
Edge edge_)
: component (componentToResize),
constrainer (constrainer_),
edge (edge_)
{
setRepaintsOnMouseActivity (true);
setMouseCursor (isVertical() ? MouseCursor::LeftRightResizeCursor
: MouseCursor::UpDownResizeCursor);
}
ResizableEdgeComponent::~ResizableEdgeComponent()
{
}
//==============================================================================
bool ResizableEdgeComponent::isVertical() const noexcept
{
return edge == leftEdge || edge == rightEdge;
}
void ResizableEdgeComponent::paint (Graphics& g)
{
getLookAndFeel().drawStretchableLayoutResizerBar (g, getWidth(), getHeight(), isVertical(),
isMouseOver(), isMouseButtonDown());
}
void ResizableEdgeComponent::mouseDown (const MouseEvent&)
{
if (component == nullptr)
{
jassertfalse; // You've deleted the component that this resizer was supposed to be using!
return;
}
originalBounds = component->getBounds();
if (constrainer != nullptr)
constrainer->resizeStart();
}
void ResizableEdgeComponent::mouseDrag (const MouseEvent& e)
{
if (component == nullptr)
{
jassertfalse; // You've deleted the component that this resizer was supposed to be using!
return;
}
Rectangle<int> newBounds (originalBounds);
switch (edge)
{
case leftEdge: newBounds.setLeft (jmin (newBounds.getRight(), newBounds.getX() + e.getDistanceFromDragStartX())); break;
case rightEdge: newBounds.setWidth (jmax (0, newBounds.getWidth() + e.getDistanceFromDragStartX())); break;
case topEdge: newBounds.setTop (jmin (newBounds.getBottom(), newBounds.getY() + e.getDistanceFromDragStartY())); break;
case bottomEdge: newBounds.setHeight (jmax (0, newBounds.getHeight() + e.getDistanceFromDragStartY())); break;
default: jassertfalse; break;
}
if (constrainer != nullptr)
{
constrainer->setBoundsForComponent (component, newBounds,
edge == topEdge,
edge == leftEdge,
edge == bottomEdge,
edge == rightEdge);
}
else
{
if (Component::Positioner* const pos = component->getPositioner())
pos->applyNewBounds (newBounds);
else
component->setBounds (newBounds);
}
}
void ResizableEdgeComponent::mouseUp (const MouseEvent&)
{
if (constrainer != nullptr)
constrainer->resizeEnd();
}
|
