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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: src/generic/collpaneg.cpp | |
3 | // Purpose: wxGenericCollapsiblePane | |
4 | // Author: Francesco Montorsi | |
5 | // Modified By: | |
6 | // Created: 8/10/2006 | |
7 | // Id: $Id$ | |
8 | // Copyright: (c) Francesco Montorsi | |
9 | // Licence: wxWindows licence | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | ||
13 | // ---------------------------------------------------------------------------- | |
14 | // headers | |
15 | // ---------------------------------------------------------------------------- | |
16 | ||
17 | // For compilers that support precompilation, includes "wx.h". | |
18 | #include "wx/wxprec.h" | |
19 | #include "wx/defs.h" | |
20 | ||
21 | #if wxUSE_COLLPANE && wxUSE_BUTTON && wxUSE_STATLINE | |
22 | ||
23 | #include "wx/collpane.h" | |
24 | ||
25 | #ifndef WX_PRECOMP | |
26 | #include "wx/toplevel.h" | |
27 | #include "wx/button.h" | |
28 | #include "wx/sizer.h" | |
29 | #include "wx/panel.h" | |
30 | #endif // !WX_PRECOMP | |
31 | ||
32 | #include "wx/statline.h" | |
33 | ||
34 | // ---------------------------------------------------------------------------- | |
35 | // constants | |
36 | // ---------------------------------------------------------------------------- | |
37 | ||
38 | // ============================================================================ | |
39 | // implementation | |
40 | // ============================================================================ | |
41 | ||
42 | const char wxCollapsiblePaneNameStr[] = "collapsiblePane"; | |
43 | ||
44 | //----------------------------------------------------------------------------- | |
45 | // wxGenericCollapsiblePane | |
46 | //----------------------------------------------------------------------------- | |
47 | ||
48 | DEFINE_EVENT_TYPE(wxEVT_COMMAND_COLLPANE_CHANGED) | |
49 | IMPLEMENT_DYNAMIC_CLASS(wxGenericCollapsiblePane, wxControl) | |
50 | IMPLEMENT_DYNAMIC_CLASS(wxCollapsiblePaneEvent, wxCommandEvent) | |
51 | ||
52 | BEGIN_EVENT_TABLE(wxGenericCollapsiblePane, wxControl) | |
53 | EVT_BUTTON(wxID_ANY, wxGenericCollapsiblePane::OnButton) | |
54 | EVT_SIZE(wxGenericCollapsiblePane::OnSize) | |
55 | ||
56 | WX_EVENT_TABLE_CONTROL_CONTAINER(wxGenericCollapsiblePane) | |
57 | END_EVENT_TABLE() | |
58 | ||
59 | WX_DELEGATE_TO_CONTROL_CONTAINER(wxGenericCollapsiblePane, wxControl) | |
60 | ||
61 | void wxGenericCollapsiblePane::Init() | |
62 | { | |
63 | WX_INIT_CONTROL_CONTAINER(); | |
64 | ||
65 | m_pButton = NULL; | |
66 | m_pPane = NULL; | |
67 | m_pStaticLine = NULL; | |
68 | m_sz = NULL; | |
69 | } | |
70 | ||
71 | bool wxGenericCollapsiblePane::Create(wxWindow *parent, | |
72 | wxWindowID id, | |
73 | const wxString& label, | |
74 | const wxPoint& pos, | |
75 | const wxSize& size, | |
76 | long style, | |
77 | const wxValidator& val, | |
78 | const wxString& name) | |
79 | { | |
80 | if ( !wxControl::Create(parent, id, pos, size, style, val, name) ) | |
81 | return false; | |
82 | ||
83 | m_strLabel = label; | |
84 | ||
85 | #if defined( __WXMAC__ ) && !defined(__WXUNIVERSAL__) | |
86 | // on Mac we use the disclosure triangle | |
87 | // we need a light gray line above and below, lets approximate with the frame | |
88 | m_pStaticLine = NULL; | |
89 | m_pButton = new wxDisclosureTriangle( this, wxID_ANY, GetBtnLabel(), | |
90 | wxDefaultPosition, wxDefaultSize, wxSIMPLE_BORDER ); | |
91 | m_pButton->SetBackgroundColour( wxColour( 221, 226, 239 ) ); | |
92 | m_sz = new wxBoxSizer(wxHORIZONTAL); | |
93 | // m_sz->Add(4,4); where shall we put it? | |
94 | m_sz->Add( m_pButton, 1); | |
95 | #else | |
96 | // create children and lay them out using a wxBoxSizer | |
97 | // (so that we automatically get RTL features) | |
98 | m_pButton = new wxButton(this, wxID_ANY, GetBtnLabel(), wxPoint(0, 0), | |
99 | wxDefaultSize, wxBU_EXACTFIT); | |
100 | m_pStaticLine = new wxStaticLine(this, wxID_ANY); | |
101 | // on other platforms we put the static line and the button horizontally | |
102 | m_sz = new wxBoxSizer(wxHORIZONTAL); | |
103 | m_sz->Add(m_pButton, 0, wxLEFT|wxTOP|wxBOTTOM, GetBorder()); | |
104 | m_sz->Add(m_pStaticLine, 1, wxALIGN_CENTER|wxLEFT|wxRIGHT, GetBorder()); | |
105 | #endif | |
106 | ||
107 | // FIXME: at least under wxCE and wxGTK1 the background is black if we don't do | |
108 | // this, no idea why... | |
109 | #if defined(__WXWINCE__) || defined(__WXGTK__) | |
110 | SetBackgroundColour(parent->GetBackgroundColour()); | |
111 | #endif | |
112 | ||
113 | // do not set sz as our sizers since we handle the pane window without using sizers | |
114 | m_pPane = new wxPanel(this, wxID_ANY, wxDefaultPosition, wxDefaultSize, | |
115 | wxTAB_TRAVERSAL|wxNO_BORDER); | |
116 | ||
117 | // start as collapsed: | |
118 | m_pPane->Hide(); | |
119 | ||
120 | return true; | |
121 | } | |
122 | ||
123 | wxGenericCollapsiblePane::~wxGenericCollapsiblePane() | |
124 | { | |
125 | if (m_pButton) | |
126 | m_pButton->SetContainingSizer(NULL); | |
127 | ||
128 | if (m_pStaticLine) | |
129 | m_pStaticLine->SetContainingSizer(NULL); | |
130 | ||
131 | // our sizer is not deleted automatically since we didn't use SetSizer()! | |
132 | wxDELETE(m_sz); | |
133 | } | |
134 | ||
135 | wxSize wxGenericCollapsiblePane::DoGetBestSize() const | |
136 | { | |
137 | // NB: do not use GetSize() but rather GetMinSize() | |
138 | wxSize sz = m_sz->GetMinSize(); | |
139 | ||
140 | // when expanded, we need more vertical space | |
141 | if ( IsExpanded() ) | |
142 | { | |
143 | sz.SetWidth(wxMax( sz.GetWidth(), m_pPane->GetBestSize().x )); | |
144 | sz.SetHeight(sz.y + GetBorder() + m_pPane->GetBestSize().y); | |
145 | } | |
146 | ||
147 | return sz; | |
148 | } | |
149 | ||
150 | wxString wxGenericCollapsiblePane::GetBtnLabel() const | |
151 | { | |
152 | // on mac the triangle indicates the state, no string change | |
153 | #ifdef __WXMAC__ | |
154 | return m_strLabel; | |
155 | #else | |
156 | return m_strLabel + (IsCollapsed() ? wxT(" >>") : wxT(" <<")); | |
157 | #endif | |
158 | } | |
159 | ||
160 | void wxGenericCollapsiblePane::OnStateChange(const wxSize& sz) | |
161 | { | |
162 | // minimal size has priority over the best size so set here our min size | |
163 | SetMinSize(sz); | |
164 | SetSize(sz); | |
165 | ||
166 | if (this->HasFlag(wxCP_NO_TLW_RESIZE)) | |
167 | { | |
168 | // the user asked to explicitely handle the resizing itself... | |
169 | return; | |
170 | } | |
171 | ||
172 | ||
173 | wxTopLevelWindow *top = | |
174 | wxDynamicCast(wxGetTopLevelParent(this), wxTopLevelWindow); | |
175 | if ( !top ) | |
176 | return; | |
177 | ||
178 | wxSizer *sizer = top->GetSizer(); | |
179 | if ( !sizer ) | |
180 | return; | |
181 | ||
182 | const wxSize newBestSize = sizer->ComputeFittingClientSize(top); | |
183 | top->SetMinClientSize(newBestSize); | |
184 | ||
185 | // we shouldn't attempt to resize a maximized window, whatever happens | |
186 | if ( !top->IsMaximized() ) | |
187 | top->SetClientSize(newBestSize); | |
188 | } | |
189 | ||
190 | void wxGenericCollapsiblePane::Collapse(bool collapse) | |
191 | { | |
192 | // optimization | |
193 | if ( IsCollapsed() == collapse ) | |
194 | return; | |
195 | ||
196 | // update our state | |
197 | m_pPane->Show(!collapse); | |
198 | ||
199 | // update button label | |
200 | #if defined( __WXMAC__ ) && !defined(__WXUNIVERSAL__) | |
201 | m_pButton->SetOpen( !collapse ); | |
202 | #else | |
203 | // NB: this must be done after updating our "state" | |
204 | m_pButton->SetLabel(GetBtnLabel()); | |
205 | #endif | |
206 | ||
207 | ||
208 | OnStateChange(GetBestSize()); | |
209 | } | |
210 | ||
211 | void wxGenericCollapsiblePane::SetLabel(const wxString &label) | |
212 | { | |
213 | m_strLabel = label; | |
214 | #ifdef __WXMAC__ | |
215 | m_pButton->SetLabel(GetBtnLabel()); | |
216 | #else | |
217 | m_pButton->SetLabel(GetBtnLabel()); | |
218 | m_pButton->SetInitialSize(); | |
219 | #endif | |
220 | ||
221 | Layout(); | |
222 | } | |
223 | ||
224 | bool wxGenericCollapsiblePane::Layout() | |
225 | { | |
226 | #ifdef __WXMAC__ | |
227 | if (!m_pButton || !m_pPane || !m_sz) | |
228 | return false; // we need to complete the creation first! | |
229 | #else | |
230 | if (!m_pButton || !m_pStaticLine || !m_pPane || !m_sz) | |
231 | return false; // we need to complete the creation first! | |
232 | #endif | |
233 | ||
234 | wxSize oursz(GetSize()); | |
235 | ||
236 | // move & resize the button and the static line | |
237 | m_sz->SetDimension(0, 0, oursz.GetWidth(), m_sz->GetMinSize().GetHeight()); | |
238 | m_sz->Layout(); | |
239 | ||
240 | if ( IsExpanded() ) | |
241 | { | |
242 | // move & resize the container window | |
243 | int yoffset = m_sz->GetSize().GetHeight() + GetBorder(); | |
244 | m_pPane->SetSize(0, yoffset, | |
245 | oursz.x, oursz.y - yoffset); | |
246 | ||
247 | // this is very important to make the pane window layout show correctly | |
248 | m_pPane->Layout(); | |
249 | } | |
250 | ||
251 | return true; | |
252 | } | |
253 | ||
254 | int wxGenericCollapsiblePane::GetBorder() const | |
255 | { | |
256 | #if defined( __WXMAC__ ) | |
257 | return 6; | |
258 | #elif defined(__WXMSW__) | |
259 | wxASSERT(m_pButton); | |
260 | return m_pButton->ConvertDialogToPixels(wxSize(2, 0)).x; | |
261 | #else | |
262 | return 5; | |
263 | #endif | |
264 | } | |
265 | ||
266 | ||
267 | ||
268 | //----------------------------------------------------------------------------- | |
269 | // wxGenericCollapsiblePane - event handlers | |
270 | //----------------------------------------------------------------------------- | |
271 | ||
272 | void wxGenericCollapsiblePane::OnButton(wxCommandEvent& event) | |
273 | { | |
274 | if ( event.GetEventObject() != m_pButton ) | |
275 | { | |
276 | event.Skip(); | |
277 | return; | |
278 | } | |
279 | ||
280 | Collapse(!IsCollapsed()); | |
281 | ||
282 | // this change was generated by the user - send the event | |
283 | wxCollapsiblePaneEvent ev(this, GetId(), IsCollapsed()); | |
284 | GetEventHandler()->ProcessEvent(ev); | |
285 | } | |
286 | ||
287 | void wxGenericCollapsiblePane::OnSize(wxSizeEvent& WXUNUSED(event)) | |
288 | { | |
289 | #if 0 // for debug only | |
290 | wxClientDC dc(this); | |
291 | dc.SetPen(*wxBLACK_PEN); | |
292 | dc.SetBrush(*wxTRANSPARENT_BRUSH); | |
293 | dc.DrawRectangle(wxPoint(0,0), GetSize()); | |
294 | dc.SetPen(*wxRED_PEN); | |
295 | dc.DrawRectangle(wxPoint(0,0), GetBestSize()); | |
296 | #endif | |
297 | ||
298 | Layout(); | |
299 | } | |
300 | ||
301 | #endif // wxUSE_COLLPANE && wxUSE_BUTTON && wxUSE_STATLINE |