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( vcl::Window* pParent, WinBits nWinStyle )
32 0 : : DBTreeListBox(pParent, nWinStyle)
33 : {
34 :
35 0 : InitButtonData();
36 0 : }
37 :
38 0 : OMarkableTreeListBox::~OMarkableTreeListBox()
39 : {
40 0 : disposeOnce();
41 0 : }
42 :
43 0 : void OMarkableTreeListBox::dispose()
44 : {
45 0 : delete m_pCheckButton;
46 0 : DBTreeListBox::dispose();
47 0 : }
48 :
49 0 : void OMarkableTreeListBox::Paint(vcl::RenderContext& rRenderContext, const Rectangle& _rRect)
50 : {
51 0 : if (!IsEnabled())
52 : {
53 0 : vcl::Font aOldFont = rRenderContext.GetFont();
54 0 : vcl::Font aNewFont(aOldFont);
55 :
56 0 : StyleSettings aSystemStyle = Application::GetSettings().GetStyleSettings();
57 0 : aNewFont.SetColor(aSystemStyle.GetDisableColor());
58 :
59 0 : rRenderContext.SetFont(aNewFont);
60 0 : DBTreeListBox::Paint(rRenderContext, _rRect);
61 0 : rRenderContext.SetFont(aOldFont);
62 : }
63 : else
64 0 : DBTreeListBox::Paint(rRenderContext, _rRect);
65 0 : }
66 :
67 0 : void OMarkableTreeListBox::InitButtonData()
68 : {
69 0 : m_pCheckButton = new SvLBoxButtonData( this );
70 0 : EnableCheckButton( m_pCheckButton );
71 0 : }
72 :
73 0 : void OMarkableTreeListBox::KeyInput( const KeyEvent& rKEvt )
74 : {
75 : // only if there are spaces
76 0 : if (rKEvt.GetKeyCode().GetCode() == KEY_SPACE && !rKEvt.GetKeyCode().IsShift() && !rKEvt.GetKeyCode().IsMod1())
77 : {
78 0 : SvTreeListEntry* pCurrentHandlerEntry = GetHdlEntry();
79 0 : if(pCurrentHandlerEntry)
80 : {
81 0 : SvButtonState eState = GetCheckButtonState( pCurrentHandlerEntry);
82 0 : if(eState == SV_BUTTON_CHECKED)
83 0 : SetCheckButtonState( pCurrentHandlerEntry, SV_BUTTON_UNCHECKED);
84 : else
85 0 : SetCheckButtonState( pCurrentHandlerEntry, SV_BUTTON_CHECKED);
86 :
87 0 : CheckButtonHdl();
88 : }
89 : else
90 0 : DBTreeListBox::KeyInput(rKEvt);
91 : }
92 : else
93 0 : DBTreeListBox::KeyInput(rKEvt);
94 0 : }
95 :
96 0 : SvButtonState OMarkableTreeListBox::implDetermineState(SvTreeListEntry* _pEntry)
97 : {
98 0 : SvButtonState eState = GetCheckButtonState(_pEntry);
99 0 : if (!GetModel()->HasChildren(_pEntry))
100 : // nothing to do in this bottom-up routine if there are no children ...
101 0 : return eState;
102 :
103 : // loop through the children and check their states
104 0 : sal_uInt16 nCheckedChildren = 0;
105 0 : sal_uInt16 nChildrenOverall = 0;
106 :
107 0 : SvTreeListEntry* pChildLoop = GetModel()->FirstChild(_pEntry);
108 0 : while (pChildLoop)
109 : {
110 0 : SvButtonState eChildState = implDetermineState(pChildLoop);
111 0 : if (SV_BUTTON_TRISTATE == eChildState)
112 0 : break;
113 :
114 0 : if (SV_BUTTON_CHECKED == eChildState)
115 0 : ++nCheckedChildren;
116 0 : ++nChildrenOverall;
117 :
118 0 : pChildLoop = SvTreeList::NextSibling(pChildLoop);
119 : }
120 :
121 0 : if (pChildLoop)
122 : {
123 : // we did not finish the loop because at least one of the children is in tristate
124 0 : eState = SV_BUTTON_TRISTATE;
125 :
126 : // but this means that we did not finish all the siblings of pChildLoop,
127 : // so their checking may be incorrect at the moment
128 : // -> correct this
129 0 : while (pChildLoop)
130 : {
131 0 : implDetermineState(pChildLoop);
132 0 : pChildLoop = SvTreeList::NextSibling(pChildLoop);
133 : }
134 : }
135 : else
136 : // none if the children are in tristate
137 0 : if (nCheckedChildren)
138 : // we have at least one child checked
139 0 : if (nCheckedChildren != nChildrenOverall)
140 : // not all children are checked
141 0 : eState = SV_BUTTON_TRISTATE;
142 : else
143 : // all children are checked
144 0 : eState = SV_BUTTON_CHECKED;
145 : else
146 : // no children are checked
147 0 : eState = SV_BUTTON_UNCHECKED;
148 :
149 : // finally set the entry to the state we just determined
150 0 : SetCheckButtonState(_pEntry, eState);
151 :
152 0 : return eState;
153 : }
154 :
155 0 : void OMarkableTreeListBox::CheckButtons()
156 : {
157 0 : SvTreeListEntry* pEntry = GetModel()->First();
158 0 : while (pEntry)
159 : {
160 0 : implDetermineState(pEntry);
161 0 : pEntry = SvTreeList::NextSibling(pEntry);
162 : }
163 0 : }
164 :
165 0 : void OMarkableTreeListBox::CheckButtonHdl()
166 : {
167 0 : checkedButton_noBroadcast(GetHdlEntry());
168 0 : if (m_aCheckButtonHandler.IsSet())
169 0 : m_aCheckButtonHandler.Call(this);
170 0 : }
171 :
172 0 : void OMarkableTreeListBox::checkedButton_noBroadcast(SvTreeListEntry* _pEntry)
173 : {
174 0 : SvButtonState eState = GetCheckButtonState( _pEntry);
175 0 : if (GetModel()->HasChildren(_pEntry)) // if it has children, check those too
176 : {
177 0 : SvTreeListEntry* pChildEntry = GetModel()->Next(_pEntry);
178 0 : SvTreeListEntry* pSiblingEntry = SvTreeList::NextSibling(_pEntry);
179 0 : while(pChildEntry && pChildEntry != pSiblingEntry)
180 : {
181 0 : SetCheckButtonState(pChildEntry, eState);
182 0 : pChildEntry = GetModel()->Next(pChildEntry);
183 : }
184 : }
185 :
186 0 : SvTreeListEntry* pEntry = IsSelected(_pEntry) ? FirstSelected() : NULL;
187 0 : while(pEntry)
188 : {
189 0 : SetCheckButtonState(pEntry,eState);
190 0 : if(GetModel()->HasChildren(pEntry)) // if it has children, check those too
191 : {
192 0 : SvTreeListEntry* pChildEntry = GetModel()->Next(pEntry);
193 0 : SvTreeListEntry* pSiblingEntry = SvTreeList::NextSibling(pEntry);
194 0 : while(pChildEntry && pChildEntry != pSiblingEntry)
195 : {
196 0 : SetCheckButtonState(pChildEntry,eState);
197 0 : pChildEntry = GetModel()->Next(pChildEntry);
198 : }
199 : }
200 0 : pEntry = NextSelected(pEntry);
201 : }
202 0 : CheckButtons();
203 0 : }
204 :
205 36 : } // namespace
206 :
207 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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