1/*
2 * Copyright (c) 1999-2000, Eric Moon.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions, and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions, and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * 3. The name of the author may not be used to endorse or promote products
17 *    derived from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF TITLE, NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
23 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
26 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
27 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31
32// DiagramItem.cpp
33
34#include "DiagramItem.h"
35#include "DiagramView.h"
36
37__USE_CORTEX_NAMESPACE
38
39#include <Debug.h>
40#define D_METHOD(x) //PRINT(x)
41
42// -------------------------------------------------------- //
43// *** static member initialization
44// -------------------------------------------------------- //
45
46bigtime_t DiagramItem::m_lastSelectionTime	= 0;
47int32 DiagramItem::m_countSelected			= 0;
48
49// -------------------------------------------------------- //
50// *** ctor/dtor (public)
51// -------------------------------------------------------- //
52
53DiagramItem::DiagramItem(
54	uint32 itemType)
55	: m_type(itemType),
56	  m_view(0),
57	  m_group(0),
58	  m_draggable(false),
59	  m_selectable(true),
60	  m_selected(false),
61	  m_selectionTime(system_time())
62{
63	D_METHOD(("DiagramItem::DiagramItem()\n"));
64}
65
66DiagramItem::~DiagramItem()
67{
68	D_METHOD(("DiagramItem::~DiagramItem()\n"));
69}
70
71// -------------------------------------------------------- //
72// *** operations (public)
73// -------------------------------------------------------- //
74
75void DiagramItem::select()
76{
77	D_METHOD(("DiagramItem::select()\n"));
78	if (!m_selected)
79	{
80		m_selected = true;
81		m_lastSelectionTime = m_selectionTime = system_time();
82		m_countSelected = 1;
83		selected();
84		view()->Invalidate(Frame());
85	}
86}
87
88void DiagramItem::selectAdding()
89{
90	D_METHOD(("DiagramItem::selectAdding()\n"));
91	if (!m_selected)
92	{
93		m_selected = true;
94		m_selectionTime = m_lastSelectionTime - m_countSelected++;
95		selected();
96		view()->Invalidate(Frame());
97	}
98}
99
100void DiagramItem::deselect()
101{
102	D_METHOD(("DiagramItem::deselect()\n"));
103	if (m_selected)
104	{
105		m_selected = false;
106		deselected();
107		view()->Invalidate(Frame());
108	}
109}
110
111// -------------------------------------------------------- //
112// *** hook functions (public)
113// -------------------------------------------------------- //
114
115float DiagramItem::howCloseTo(
116	BPoint point) const
117{
118	D_METHOD(("DiagramItem::howCloseTo()\n"));
119	if (Frame().Contains(point))
120	{
121		return 1.0;
122	}
123	return 0.0;
124}
125
126// -------------------------------------------------------- //
127// *** compare functions (friend)
128// -------------------------------------------------------- //
129
130int __CORTEX_NAMESPACE__ compareSelectionTime(
131	const void *lValue,
132	const void *rValue)
133{
134	D_METHOD(("compareSelectionTime()\n"));
135	int returnValue = 0;
136	const DiagramItem *lItem = *(reinterpret_cast<const DiagramItem* const*>(reinterpret_cast<const void* const*>(lValue)));
137	const DiagramItem *rItem = *(reinterpret_cast<const DiagramItem* const*>(reinterpret_cast<const void* const*>(rValue)));
138	if (lItem->m_selectionTime < rItem->m_selectionTime)
139	{
140		returnValue = 1;
141	}
142	else if (lItem->m_selectionTime > rItem->m_selectionTime)
143	{
144		returnValue = -1;
145	}
146	return returnValue;
147}
148
149// END -- DiagramItem.cpp --
150