Line data Source code
1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 : #include "marktree.hxx"
21 : #include "dbu_control.hrc"
22 : #include <vcl/svapp.hxx>
23 : #include <vcl/settings.hxx>
24 :
25 : namespace dbaui
26 : {
27 : using namespace ::com::sun::star::uno;
28 : using namespace ::com::sun::star::lang;
29 :
30 :
31 0 : OMarkableTreeListBox::OMarkableTreeListBox( Window* pParent, WinBits nWinStyle )
32 0 : : DBTreeListBox(pParent, nWinStyle)
33 : {
34 :
35 0 : InitButtonData();
36 0 : }
37 :
38 0 : OMarkableTreeListBox::OMarkableTreeListBox( Window* pParent, const ResId& rResId)
39 0 : : DBTreeListBox(pParent, rResId)
40 : {
41 :
42 0 : InitButtonData();
43 0 : }
44 :
45 0 : OMarkableTreeListBox::~OMarkableTreeListBox()
46 : {
47 0 : delete m_pCheckButton;
48 :
49 0 : }
50 :
51 0 : void OMarkableTreeListBox::Paint(const Rectangle& _rRect)
52 : {
53 0 : if (!IsEnabled())
54 : {
55 0 : Font aOldFont = GetFont();
56 0 : Font aNewFont(aOldFont);
57 :
58 0 : StyleSettings aSystemStyle = Application::GetSettings().GetStyleSettings();
59 0 : aNewFont.SetColor(aSystemStyle.GetDisableColor());
60 :
61 0 : SetFont(aNewFont);
62 0 : DBTreeListBox::Paint(_rRect);
63 0 : SetFont(aOldFont);
64 : }
65 : else
66 0 : DBTreeListBox::Paint(_rRect);
67 0 : }
68 :
69 0 : void OMarkableTreeListBox::InitButtonData()
70 : {
71 0 : m_pCheckButton = new SvLBoxButtonData( this );
72 0 : EnableCheckButton( m_pCheckButton );
73 0 : }
74 :
75 0 : void OMarkableTreeListBox::KeyInput( const KeyEvent& rKEvt )
76 : {
77 : // only if there are spaces
78 0 : if (rKEvt.GetKeyCode().GetCode() == KEY_SPACE && !rKEvt.GetKeyCode().IsShift() && !rKEvt.GetKeyCode().IsMod1())
79 : {
80 0 : SvTreeListEntry* pCurrentHandlerEntry = GetHdlEntry();
81 0 : if(pCurrentHandlerEntry)
82 : {
83 0 : SvButtonState eState = GetCheckButtonState( pCurrentHandlerEntry);
84 0 : if(eState == SV_BUTTON_CHECKED)
85 0 : SetCheckButtonState( pCurrentHandlerEntry, SV_BUTTON_UNCHECKED);
86 : else
87 0 : SetCheckButtonState( pCurrentHandlerEntry, SV_BUTTON_CHECKED);
88 :
89 0 : CheckButtonHdl();
90 : }
91 : else
92 0 : DBTreeListBox::KeyInput(rKEvt);
93 : }
94 : else
95 0 : DBTreeListBox::KeyInput(rKEvt);
96 0 : }
97 :
98 0 : SvButtonState OMarkableTreeListBox::implDetermineState(SvTreeListEntry* _pEntry)
99 : {
100 0 : SvButtonState eState = GetCheckButtonState(_pEntry);
101 0 : if (!GetModel()->HasChildren(_pEntry))
102 : // nothing to do in this bottom-up routine if there are no children ...
103 0 : return eState;
104 :
105 : // loop through the children and check their states
106 0 : sal_uInt16 nCheckedChildren = 0;
107 0 : sal_uInt16 nChildrenOverall = 0;
108 :
109 0 : SvTreeListEntry* pChildLoop = GetModel()->FirstChild(_pEntry);
110 0 : while (pChildLoop)
111 : {
112 0 : SvButtonState eChildState = implDetermineState(pChildLoop);
113 0 : if (SV_BUTTON_TRISTATE == eChildState)
114 0 : break;
115 :
116 0 : if (SV_BUTTON_CHECKED == eChildState)
117 0 : ++nCheckedChildren;
118 0 : ++nChildrenOverall;
119 :
120 0 : pChildLoop = GetModel()->NextSibling(pChildLoop);
121 : }
122 :
123 0 : if (pChildLoop)
124 : {
125 : // we did not finish the loop because at least one of the children is in tristate
126 0 : eState = SV_BUTTON_TRISTATE;
127 :
128 : // but this means that we did not finish all the siblings of pChildLoop,
129 : // so their checking may be incorrect at the moment
130 : // -> correct this
131 0 : while (pChildLoop)
132 : {
133 0 : implDetermineState(pChildLoop);
134 0 : pChildLoop = GetModel()->NextSibling(pChildLoop);
135 : }
136 : }
137 : else
138 : // none if the children are in tristate
139 0 : if (nCheckedChildren)
140 : // we have at least one child checked
141 0 : if (nCheckedChildren != nChildrenOverall)
142 : // not all children are checked
143 0 : eState = SV_BUTTON_TRISTATE;
144 : else
145 : // all children are checked
146 0 : eState = SV_BUTTON_CHECKED;
147 : else
148 : // no children are checked
149 0 : eState = SV_BUTTON_UNCHECKED;
150 :
151 : // finally set the entry to the state we just determined
152 0 : SetCheckButtonState(_pEntry, eState);
153 :
154 0 : return eState;
155 : }
156 :
157 0 : void OMarkableTreeListBox::CheckButtons()
158 : {
159 0 : SvTreeListEntry* pEntry = GetModel()->First();
160 0 : while (pEntry)
161 : {
162 0 : implDetermineState(pEntry);
163 0 : pEntry = GetModel()->NextSibling(pEntry);
164 : }
165 0 : }
166 :
167 0 : void OMarkableTreeListBox::CheckButtonHdl()
168 : {
169 0 : checkedButton_noBroadcast(GetHdlEntry());
170 0 : if (m_aCheckButtonHandler.IsSet())
171 0 : m_aCheckButtonHandler.Call(this);
172 0 : }
173 :
174 0 : void OMarkableTreeListBox::checkedButton_noBroadcast(SvTreeListEntry* _pEntry)
175 : {
176 0 : SvButtonState eState = GetCheckButtonState( _pEntry);
177 0 : if (GetModel()->HasChildren(_pEntry)) // if it has children, check those too
178 : {
179 0 : SvTreeListEntry* pChildEntry = GetModel()->Next(_pEntry);
180 0 : SvTreeListEntry* pSiblingEntry = GetModel()->NextSibling(_pEntry);
181 0 : while(pChildEntry && pChildEntry != pSiblingEntry)
182 : {
183 0 : SetCheckButtonState(pChildEntry, eState);
184 0 : pChildEntry = GetModel()->Next(pChildEntry);
185 : }
186 : }
187 :
188 0 : SvTreeListEntry* pEntry = IsSelected(_pEntry) ? FirstSelected() : NULL;
189 0 : while(pEntry)
190 : {
191 0 : SetCheckButtonState(pEntry,eState);
192 0 : if(GetModel()->HasChildren(pEntry)) // if it has children, check those too
193 : {
194 0 : SvTreeListEntry* pChildEntry = GetModel()->Next(pEntry);
195 0 : SvTreeListEntry* pSiblingEntry = GetModel()->NextSibling(pEntry);
196 0 : while(pChildEntry && pChildEntry != pSiblingEntry)
197 : {
198 0 : SetCheckButtonState(pChildEntry,eState);
199 0 : pChildEntry = GetModel()->Next(pChildEntry);
200 : }
201 : }
202 0 : pEntry = NextSelected(pEntry);
203 : }
204 0 : CheckButtons();
205 0 : }
206 :
207 : } // namespace
208 :
209 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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