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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: statbox.cpp | |
3 | // Purpose: wxStaticBox | |
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 "statbox.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/dcclient.h" | |
25 | #include "wx/app.h" | |
26 | #endif | |
27 | ||
28 | #include "wx/statbox.h" | |
29 | #include "wx/msw/private.h" | |
30 | ||
31 | #if !USE_SHARED_LIBRARY | |
32 | IMPLEMENT_DYNAMIC_CLASS(wxStaticBox, wxControl) | |
33 | ||
34 | BEGIN_EVENT_TABLE(wxStaticBox, wxControl) | |
35 | EVT_ERASE_BACKGROUND(wxStaticBox::OnEraseBackground) | |
36 | END_EVENT_TABLE() | |
37 | ||
38 | #endif | |
39 | ||
40 | /* | |
41 | * Group box | |
42 | */ | |
43 | ||
44 | bool wxStaticBox::Create(wxWindow *parent, wxWindowID id, | |
45 | const wxString& label, | |
46 | const wxPoint& pos, | |
47 | const wxSize& size, | |
48 | long style, | |
49 | const wxString& name) | |
50 | { | |
51 | SetName(name); | |
52 | ||
53 | if (parent) parent->AddChild(this); | |
54 | ||
55 | SetBackgroundColour(parent->GetBackgroundColour()) ; | |
56 | SetForegroundColour(parent->GetForegroundColour()) ; | |
57 | ||
58 | if ( id == -1 ) | |
59 | m_windowId = (int)NewControlId(); | |
60 | else | |
61 | m_windowId = id; | |
62 | ||
63 | int x = pos.x; | |
64 | int y = pos.y; | |
65 | int width = size.x; | |
66 | int height = size.y; | |
67 | ||
68 | m_windowStyle = style; | |
69 | ||
70 | long msStyle = BS_GROUPBOX | WS_CHILD | WS_VISIBLE ; // GROUP_FLAGS; | |
71 | ||
72 | bool want3D; | |
73 | WXDWORD exStyle = Determine3DEffects(0, &want3D) ; | |
74 | ||
75 | HWND wx_button = | |
76 | CreateWindowEx(exStyle, "BUTTON", (const char *)label, msStyle, | |
77 | 0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)m_windowId, | |
78 | wxGetInstance(), NULL); | |
79 | #if wxUSE_CTL3D | |
80 | if (want3D) | |
81 | { | |
82 | Ctl3dSubclassCtl(wx_button); | |
83 | m_useCtl3D = TRUE; | |
84 | } | |
85 | #endif | |
86 | ||
87 | m_hWnd = (WXHWND)wx_button; | |
88 | ||
89 | // Subclass again for purposes of dialog editing mode | |
90 | SubclassWin(GetHWND()); | |
91 | ||
92 | SetFont(parent->GetFont()); | |
93 | ||
94 | SetSize(x, y, width, height); | |
95 | ShowWindow(wx_button, SW_SHOW); | |
96 | ||
97 | return TRUE; | |
98 | } | |
99 | ||
100 | void wxStaticBox::SetLabel(const wxString& label) | |
101 | { | |
102 | SetWindowText((HWND)m_hWnd, (const char *)label); | |
103 | } | |
104 | ||
105 | void wxStaticBox::DoSetSize(int x, int y, int width, int height, int sizeFlags) | |
106 | { | |
107 | int currentX, currentY; | |
108 | GetPosition(¤tX, ¤tY); | |
109 | ||
110 | int x1 = x; | |
111 | int y1 = y; | |
112 | int w1 = width; | |
113 | int h1 = height; | |
114 | ||
115 | if (x == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE)) | |
116 | x1 = currentX; | |
117 | if (y == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE)) | |
118 | y1 = currentY; | |
119 | ||
120 | AdjustForParentClientOrigin(x1, y1, sizeFlags); | |
121 | ||
122 | // If we're prepared to use the existing size, then... | |
123 | if (width == -1 && height == -1 && ((sizeFlags & wxSIZE_AUTO) != wxSIZE_AUTO)) | |
124 | { | |
125 | GetSize(&w1, &h1); | |
126 | } | |
127 | ||
128 | int current_width; | |
129 | ||
130 | int cx; | |
131 | int cy; | |
132 | int cyf; | |
133 | ||
134 | wxGetCharSize(GetHWND(), &cx, &cy, & this->GetFont()); | |
135 | ||
136 | GetTextExtent(wxGetWindowText(m_hWnd), ¤t_width, &cyf, | |
137 | NULL,NULL, & this->GetFont()); | |
138 | if ( w1 < 0 ) | |
139 | w1 = current_width + 3*cx; | |
140 | if ( h1 < 0 ) | |
141 | h1 = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cyf); | |
142 | ||
143 | MoveWindow((HWND)m_hWnd, x1, y1, w1, h1, TRUE); | |
144 | } | |
145 | ||
146 | WXHBRUSH wxStaticBox::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor, | |
147 | WXUINT message, WXWPARAM wParam, WXLPARAM lParam) | |
148 | { | |
149 | #if wxUSE_CTL3D | |
150 | if ( m_useCtl3D ) | |
151 | { | |
152 | HBRUSH hbrush = Ctl3dCtlColorEx(message, wParam, lParam); | |
153 | return (WXHBRUSH) hbrush; | |
154 | } | |
155 | #endif | |
156 | ||
157 | if (GetParent()->GetTransparentBackground()) | |
158 | SetBkMode((HDC) pDC, TRANSPARENT); | |
159 | else | |
160 | SetBkMode((HDC) pDC, OPAQUE); | |
161 | ||
162 | ::SetBkColor((HDC) pDC, RGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue())); | |
163 | ::SetTextColor((HDC) pDC, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(), GetForegroundColour().Blue())); | |
164 | ||
165 | wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID); | |
166 | ||
167 | // Note that this will be cleaned up in wxApp::OnIdle, if backgroundBrush | |
168 | // has a zero usage count. | |
169 | // backgroundBrush->RealizeResource(); | |
170 | return (WXHBRUSH) backgroundBrush->GetResourceHandle(); | |
171 | } | |
172 | ||
173 | // Shouldn't erase the whole window, since the static box must only paint its | |
174 | // outline. | |
175 | void wxStaticBox::OnEraseBackground(wxEraseEvent& event) | |
176 | { | |
177 | // If we don't have this (call Default()), we don't paint the background properly. | |
178 | // If we do have this, we seem to overwrite enclosed controls. | |
179 | // Is it the WS_CLIPCHILDREN style that's causing the problems? | |
180 | // Probably - without this style, the background of the window will show through, | |
181 | // so the control doesn't have to paint it. The window background will always be | |
182 | // painted before all other controls, therefore there are no problems with | |
183 | // controls being hidden by the static box. | |
184 | // So, if we could specify wxCLIP_CHILDREN in window, or not, we could optimise painting better. | |
185 | // We would assume wxCLIP_CHILDREN in a frame and a scrolled window, but not in a panel. | |
186 | // Is this too platform-specific?? What else can we do? Not a lot, since we have to pass | |
187 | // this information from arbitrary wxWindow derivatives, and it depends on what you wish to | |
188 | // do with the windows. | |
189 | // Alternatively, just make sure that wxStaticBox is always at the back! There are probably | |
190 | // few other circumstances where it matters about child clipping. But what about painting onto | |
191 | // to panel, inside a groupbox? Doesn't appear, because the box wipes it out. | |
192 | wxWindow *parent = GetParent(); | |
193 | if ( parent && parent->GetHWND() && (::GetWindowLong((HWND) parent->GetHWND(), GWL_STYLE) & WS_CLIPCHILDREN) ) | |
194 | { | |
195 | // TODO: May in fact need to generate a paint event for inside this | |
196 | // control's rectangle, otherwise all controls are going to be clipped - | |
197 | // ugh. | |
198 | HBRUSH hBrush = ::CreateSolidBrush(PALETTERGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue())); | |
199 | int mode = ::SetMapMode((HDC) event.GetDC()->GetHDC(), MM_TEXT); | |
200 | ||
201 | RECT rect; | |
202 | ||
203 | ::GetClientRect((HWND) GetHWND(), &rect); | |
204 | ::FillRect ((HDC) event.GetDC()->GetHDC(), &rect, hBrush); | |
205 | ::DeleteObject(hBrush); | |
206 | ::SetMapMode((HDC) event.GetDC()->GetHDC(), mode); | |
207 | } | |
208 | else | |
209 | Default(); | |
210 | } | |
211 | ||
212 | long wxStaticBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam) | |
213 | { | |
214 | if (nMsg == WM_NCHITTEST) | |
215 | { | |
216 | int xPos = LOWORD(lParam); // horizontal position of cursor | |
217 | int yPos = HIWORD(lParam); // vertical position of cursor | |
218 | ||
219 | ScreenToClient(&xPos, &yPos); | |
220 | ||
221 | // Make sure you can drag by the top of the groupbox, but let | |
222 | // other (enclosed) controls get mouse events also | |
223 | if (yPos < 10) | |
224 | return (long)HTCLIENT; | |
225 | } | |
226 | ||
227 | return wxControl::MSWWindowProc(nMsg, wParam, lParam); | |
228 | } | |
229 |