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1/////////////////////////////////////////////////////////////////////////////
2// Name: src/generic/combog.cpp
3// Purpose: Generic wxComboCtrl
4// Author: Jaakko Salli
5// Modified by:
6// Created: Apr-30-2006
7// RCS-ID: $Id$
8// Copyright: (c) 2005 Jaakko Salli
9// Licence: wxWindows licence
10/////////////////////////////////////////////////////////////////////////////
11
12// ============================================================================
13// declarations
14// ============================================================================
15
16// ----------------------------------------------------------------------------
17// headers
18// ----------------------------------------------------------------------------
19
20#include "wx/wxprec.h"
21
22#ifdef __BORLANDC__
23 #pragma hdrstop
24#endif
25
26#if wxUSE_COMBOCTRL
27
28#include "wx/combo.h"
29
30#ifndef WX_PRECOMP
31 #include "wx/log.h"
32 #include "wx/combobox.h"
33 #include "wx/dcclient.h"
34 #include "wx/settings.h"
35#endif
36
37#include "wx/dcbuffer.h"
38
39// ----------------------------------------------------------------------------
40// Some constant adjustments to make the generic more bearable
41
42#if defined(__WXUNIVERSAL__)
43
44#define TEXTCTRLXADJUST 0 // position adjustment for wxTextCtrl, with zero indent
45#define TEXTCTRLYADJUST 0
46#define TEXTXADJUST 0 // how much is read-only text's x adjusted
47#define DEFAULT_DROPBUTTON_WIDTH 19
48
49#elif defined(__WXMSW__)
50
51#define TEXTCTRLXADJUST 2 // position adjustment for wxTextCtrl, with zero indent
52#define TEXTCTRLYADJUST 3
53#define TEXTXADJUST 0 // how much is read-only text's x adjusted
54#define DEFAULT_DROPBUTTON_WIDTH 17
55
56#elif defined(__WXGTK__)
57
58#define TEXTCTRLXADJUST -1 // position adjustment for wxTextCtrl, with zero indent
59#define TEXTCTRLYADJUST 0
60#define TEXTXADJUST 1 // how much is read-only text's x adjusted
61#define DEFAULT_DROPBUTTON_WIDTH 23
62
63#elif defined(__WXMAC__)
64
65#define TEXTCTRLXADJUST 0 // position adjustment for wxTextCtrl, with zero indent
66#define TEXTCTRLYADJUST 0
67#define TEXTXADJUST 0 // how much is read-only text's x adjusted
68#define DEFAULT_DROPBUTTON_WIDTH 19
69
70#else
71
72#define TEXTCTRLXADJUST 0 // position adjustment for wxTextCtrl, with zero indent
73#define TEXTCTRLYADJUST 0
74#define TEXTXADJUST 0 // how much is read-only text's x adjusted
75#define DEFAULT_DROPBUTTON_WIDTH 19
76
77#endif
78
79
80// ============================================================================
81// implementation
82// ============================================================================
83
84// Only implement if no native or it wasn't fully featured
85#ifndef wxCOMBOCONTROL_FULLY_FEATURED
86
87
88// ----------------------------------------------------------------------------
89// wxGenericComboControl
90// ----------------------------------------------------------------------------
91
92BEGIN_EVENT_TABLE(wxGenericComboControl, wxComboCtrlBase)
93 EVT_PAINT(wxGenericComboControl::OnPaintEvent)
94 EVT_MOUSE_EVENTS(wxGenericComboControl::OnMouseEvent)
95END_EVENT_TABLE()
96
97
98IMPLEMENT_DYNAMIC_CLASS(wxGenericComboControl, wxComboCtrlBase)
99
100void wxGenericComboControl::Init()
101{
102}
103
104bool wxGenericComboControl::Create(wxWindow *parent,
105 wxWindowID id,
106 const wxString& value,
107 const wxPoint& pos,
108 const wxSize& size,
109 long style,
110 const wxValidator& validator,
111 const wxString& name)
112{
113
114 // Set border
115 long border = style & wxBORDER_MASK;
116
117 if ( !border )
118 {
119#if defined(__WXUNIVERSAL__)
120 border = wxBORDER_SIMPLE;
121#elif defined(__WXMSW__)
122 // For XP, have 1-width custom border, for older version use sunken
123 if ( wxUxThemeEngine::GetIfActive() )
124 {
125 border = wxBORDER_NONE;
126 m_widthCustomBorder = 1;
127 }
128 else
129 border = wxBORDER_SUNKEN;
130#elif defined(__WXGTK__)
131 border = wxBORDER_NONE;
132 //m_widthCustomBorder = 2;
133 m_widthCustomBorder = 1;
134#else
135 border = wxBORDER_SIMPLE;
136#endif
137
138 style = (style & ~(wxBORDER_MASK)) | border;
139 }
140
141#if defined(__WXGTK__)
142 Customize( wxCC_BUTTON_OUTSIDE_BORDER |
143 wxCC_NO_TEXT_AUTO_SELECT );
144#endif
145
146 if ( style & wxCC_STD_BUTTON )
147 m_iFlags |= wxCC_POPUP_ON_MOUSE_UP;
148
149 // create main window
150 if ( !wxComboCtrlBase::Create(parent,
151 id,
152 value,
153 pos,
154 size,
155 style | wxFULL_REPAINT_ON_RESIZE,
156 wxDefaultValidator,
157 name) )
158 return false;
159
160 // Create textctrl, if necessary
161 CreateTextCtrl( wxNO_BORDER, validator );
162
163 // Add keyboard input handlers for main control and textctrl
164 InstallInputHandlers( true );
165
166 // Set background
167 SetBackgroundStyle( wxBG_STYLE_CUSTOM ); // for double-buffering
168
169 // SetBestSize should be called last
170 SetBestSize(size);
171
172 return true;
173}
174
175wxGenericComboControl::~wxGenericComboControl()
176{
177}
178
179void wxGenericComboControl::OnResize()
180{
181
182 // Recalculates button and textctrl areas
183 CalculateAreas(DEFAULT_DROPBUTTON_WIDTH);
184
185#if 0
186 // Move separate button control, if any, to correct position
187 if ( m_btn )
188 {
189 wxSize sz = GetClientSize();
190 m_btn->SetSize( m_btnArea.x + m_btnSpacingX,
191 (sz.y-m_btnSize.y)/2,
192 m_btnSize.x,
193 m_btnSize.y );
194 }
195#endif
196
197 // Move textctrl, if any, accordingly
198 PositionTextCtrl( TEXTCTRLXADJUST, TEXTCTRLYADJUST );
199}
200
201void wxGenericComboControl::OnPaintEvent( wxPaintEvent& WXUNUSED(event) )
202{
203 wxSize sz = GetClientSize();
204 wxBufferedPaintDC dc(this,GetBufferBitmap(sz));
205
206 const wxRect& rectb = m_btnArea;
207 wxRect rect = m_tcArea;
208
209 // artificial simple border
210 if ( m_widthCustomBorder )
211 {
212 int customBorder = m_widthCustomBorder;
213
214 // Set border colour
215 wxPen pen1( wxSystemSettings::GetColour(wxSYS_COLOUR_GRAYTEXT),
216 customBorder,
217 wxSOLID );
218 dc.SetPen( pen1 );
219
220 // area around both controls
221 wxRect rect2(0,0,sz.x,sz.y);
222 if ( m_iFlags & wxCC_IFLAG_BUTTON_OUTSIDE )
223 {
224 rect2 = m_tcArea;
225 if ( customBorder == 1 )
226 {
227 rect2.Inflate(1);
228 }
229 else
230 {
231 #ifdef __WXGTK__
232 rect2.x -= 1;
233 rect2.y -= 1;
234 #else
235 rect2.x -= customBorder;
236 rect2.y -= customBorder;
237 #endif
238 rect2.width += 1 + customBorder;
239 rect2.height += 1 + customBorder;
240 }
241 }
242
243 dc.SetBrush( *wxTRANSPARENT_BRUSH );
244 dc.DrawRectangle(rect2);
245 }
246
247 wxColour winCol = GetBackgroundColour();
248 dc.SetBrush(winCol);
249 dc.SetPen(winCol);
250
251 //wxLogDebug(wxT("hei: %i tcy: %i tchei: %i"),GetClientSize().y,m_tcArea.y,m_tcArea.height);
252 //wxLogDebug(wxT("btnx: %i tcx: %i tcwid: %i"),m_btnArea.x,m_tcArea.x,m_tcArea.width);
253
254 // clear main background
255 dc.DrawRectangle(rect);
256
257 if ( !m_btn )
258 // Standard button rendering
259 DrawButton(dc,rectb,true);
260
261 // paint required portion on the control
262 if ( (!m_text || m_widthCustomPaint) )
263 {
264 wxASSERT( m_widthCustomPaint >= 0 );
265
266 // this is intentionally here to allow drawed rectangle's
267 // right edge to be hidden
268 if ( m_text )
269 rect.width = m_widthCustomPaint;
270
271 dc.SetFont( GetFont() );
272
273 dc.SetClippingRegion(rect);
274 if ( m_popupInterface )
275 m_popupInterface->PaintComboControl(dc,rect);
276 else
277 wxComboPopup::DefaultPaintComboControl(this,dc,rect);
278 }
279}
280
281void wxGenericComboControl::OnMouseEvent( wxMouseEvent& event )
282{
283 bool isOnButtonArea = m_btnArea.Inside(event.m_x,event.m_y);
284 int handlerFlags = isOnButtonArea ? wxCC_MF_ON_BUTTON : 0;
285
286 // Preprocessing fabricates double-clicks and prevents
287 // (it may also do other common things in future)
288 if ( PreprocessMouseEvent(event,handlerFlags) )
289 return;
290
291 const bool ctrlIsButton = wxPlatformIs(wxMSW);
292
293 if ( ctrlIsButton &&
294 (m_windowStyle & (wxCC_SPECIAL_DCLICK|wxCB_READONLY)) == wxCB_READONLY )
295 {
296 // if no textctrl and no special double-click, then the entire control acts
297 // as a button
298 handlerFlags |= wxCC_MF_ON_BUTTON;
299 if ( HandleButtonMouseEvent(event,handlerFlags) )
300 return;
301 }
302 else
303 {
304 if ( isOnButtonArea || HasCapture() )
305 {
306 if ( HandleButtonMouseEvent(event,handlerFlags) )
307 return;
308 }
309 else if ( m_btnState )
310 {
311 // otherwise need to clear the hover status
312 m_btnState = 0;
313 RefreshRect(m_btnArea);
314 }
315 }
316
317 //
318 // This will handle left_down and left_dclick events outside button in a Windows/GTK-like manner.
319 // See header file for further information on this method.
320 HandleNormalMouseEvent(event);
321
322}
323
324#ifdef __WXUNIVERSAL__
325
326bool wxGenericComboControl::PerformAction(const wxControlAction& action,
327 long numArg,
328 const wxString& strArg)
329{
330 bool processed = false;
331 if ( action == wxACTION_COMBOBOX_POPUP )
332 {
333 if ( !m_isPopupShown )
334 {
335 ShowPopup();
336
337 processed = true;
338 }
339 }
340 else if ( action == wxACTION_COMBOBOX_DISMISS )
341 {
342 if ( m_isPopupShown )
343 {
344 HidePopup();
345
346 processed = true;
347 }
348 }
349
350 if ( !processed )
351 {
352 // pass along
353 return wxControl::PerformAction(action, numArg, strArg);
354 }
355
356 return true;
357}
358
359#endif // __WXUNIVERSAL__
360
361// If native wxComboCtrl was not defined, then prepare a simple
362// front-end so that wxRTTI works as expected.
363#ifndef _WX_COMBOCONTROL_H_
364IMPLEMENT_DYNAMIC_CLASS(wxComboCtrl, wxGenericComboControl)
365#endif
366
367#endif // !wxCOMBOCONTROL_FULLY_FEATURED
368
369#endif // wxUSE_COMBOCTRL