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[wxWidgets.git] / src / msw / button.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: button.cpp
3 // Purpose: wxButton
4 // Author: Julian Smart
5 // Modified by:
6 // Created: 04/01/98
7 // RCS-ID: $Id$
8 // Copyright: (c) Julian Smart and Markus Holzem
9 // Licence: wxWindows license
10 /////////////////////////////////////////////////////////////////////////////
11
12 #ifdef __GNUG__
13 #pragma implementation "button.h"
14 #endif
15
16 // For compilers that support precompilation, includes "wx.h".
17 #include "wx/wxprec.h"
18
19 #ifdef __BORLANDC__
20 #pragma hdrstop
21 #endif
22
23 #ifndef WX_PRECOMP
24 #include "wx/button.h"
25 #endif
26
27 #include "wx/msw/private.h"
28
29 #if !USE_SHARED_LIBRARY
30 IMPLEMENT_DYNAMIC_CLASS(wxButton, wxControl)
31 #endif
32
33 #define BUTTON_HEIGHT_FACTOR (EDIT_CONTROL_FACTOR * 1.1)
34
35 // Buttons
36
37 bool wxButton::MSWCommand(const WXUINT param, const WXWORD id)
38 {
39 if (param == BN_CLICKED)
40 {
41 wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, id);
42 event.SetEventObject(this);
43 ProcessCommand(event);
44 return TRUE;
45 }
46 else return FALSE;
47 }
48
49 bool wxButton::Create(wxWindow *parent, const wxWindowID id, const wxString& label,
50 const wxPoint& pos,
51 const wxSize& size, const long style,
52 const wxValidator& validator,
53 const wxString& name)
54 {
55 SetName(name);
56 SetValidator(validator);
57
58 parent->AddChild((wxButton *)this);
59 m_backgroundColour = parent->GetDefaultBackgroundColour() ;
60 m_foregroundColour = parent->GetDefaultForegroundColour() ;
61
62 m_windowStyle = (long&)style;
63
64 int x = pos.x;
65 int y = pos.y;
66 int width = size.x;
67 int height = size.y;
68
69 if (id == -1)
70 m_windowId = NewControlId();
71 else
72 m_windowId = id;
73
74 DWORD exStyle = MakeExtendedStyle(m_windowStyle);
75 HWND wx_button =
76 CreateWindowEx(exStyle, "BUTTON", label, BS_PUSHBUTTON | WS_TABSTOP | WS_CHILD,
77 0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)m_windowId,
78 wxGetInstance(), NULL);
79
80 #if CTL3D
81 // if (!(GetParent()->GetWindowStyleFlag() & wxUSER_COLOURS))
82 // Ctl3dSubclassCtl(wx_button);
83 #endif
84
85 m_hWnd = (WXHWND)wx_button;
86
87 // Subclass again for purposes of dialog editing mode
88 SubclassWin((WXHWND)wx_button);
89
90 SetFont(* parent->GetFont());
91
92 SetSize(x, y, width, height);
93 ShowWindow(wx_button, SW_SHOW);
94
95 return TRUE;
96 }
97
98 void wxButton::SetSize(const int x, const int y, const int width, const int height, const int sizeFlags)
99 {
100 int currentX, currentY;
101 GetPosition(&currentX, &currentY);
102 int x1 = x;
103 int y1 = y;
104 if (x == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
105 x1 = currentX;
106 if (y == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
107 y1 = currentY;
108
109 int actualWidth = width;
110 int actualHeight = height;
111 int ww, hh;
112 GetSize(&ww, &hh);
113
114 float current_width;
115 float cyf;
116 char buf[300];
117 GetWindowText((HWND) GetHWND(), buf, 300);
118 GetTextExtent(buf, &current_width, &cyf,NULL,NULL,GetFont());
119
120 // If we're prepared to use the existing width, then...
121 if (width == -1 && ((sizeFlags & wxSIZE_AUTO_WIDTH) != wxSIZE_AUTO_WIDTH))
122 actualWidth = ww;
123 else if (width == -1)
124 {
125 int cx;
126 int cy;
127 wxGetCharSize(GetHWND(), &cx, &cy,GetFont());
128 actualWidth = (int)(current_width + 3*cx) ;
129 }
130
131 // If we're prepared to use the existing height, then...
132 if (height == -1 && ((sizeFlags & wxSIZE_AUTO_HEIGHT) != wxSIZE_AUTO_HEIGHT))
133 actualHeight = hh;
134 else if (height == -1)
135 {
136 actualHeight = (int)(cyf*BUTTON_HEIGHT_FACTOR) ;
137 }
138
139 MoveWindow((HWND) GetHWND(), x1, y1, actualWidth, actualHeight, TRUE);
140
141 /*
142 if (!((width == -1) && (height == -1)))
143 {
144 #if WXWIN_COMPATIBILITY
145 GetEventHandler()->OldOnSize(width, height);
146 #else
147 wxSizeEvent event(wxSize(width, height), m_windowId);
148 event.eventObject = this;
149 GetEventHandler()->ProcessEvent(event);
150 #endif
151 }
152 */
153 }
154
155 void wxButton::SetDefault(void)
156 {
157 wxWindow *parent = (wxWindow *)GetParent();
158 if (parent)
159 parent->SetDefaultItem(this);
160
161 if (parent)
162 {
163 SendMessage((HWND) parent->GetHWND(), DM_SETDEFID, m_windowId, 0L);
164 }
165 }
166
167 wxString wxButton::GetLabel(void) const
168 {
169 GetWindowText((HWND) GetHWND(), wxBuffer, 300);
170 return wxString(wxBuffer);
171 }
172
173 void wxButton::SetLabel(const wxString& label)
174 {
175 SetWindowText((HWND) GetHWND(), (const char *) label);
176 }
177
178 WXHBRUSH wxButton::OnCtlColor(const WXHDC pDC, const WXHWND pWnd, const WXUINT nCtlColor,
179 WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
180 {
181 /*
182 WXHBRUSH hBrush = (WXHBRUSH) MSWDefWindowProc(message, wParam, lParam);
183 // ::SetTextColor((HDC) pDC, GetSysColor(COLOR_BTNTEXT));
184 ::SetTextColor((HDC) pDC, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(),
185 GetForegroundColour().Blue()));
186
187 return hBrush;
188 */
189 // This doesn't in fact seem to make any difference at all - buttons are always
190 // the same colour.
191 ::SetBkColor((HDC) pDC, RGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue()));
192 ::SetTextColor((HDC) pDC, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(), GetForegroundColour().Blue()));
193
194 wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID);
195
196 // Note that this will be cleaned up in wxApp::OnIdle, if backgroundBrush
197 // has a zero usage count.
198 // NOT NOW; CHANGED.
199 // backgroundBrush->RealizeResource();
200 return (WXHBRUSH) backgroundBrush->GetResourceHandle();
201 }
202
203 void wxButton::Command (wxCommandEvent & event)
204 {
205 ProcessCommand (event);
206 }
207
208