| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: button.cpp |
| 3 | // Purpose: wxButton |
| 4 | // Author: David Webster |
| 5 | // Modified by: |
| 6 | // Created: 10/13/99 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) David Webster |
| 9 | // Licence: wxWindows licence |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | // For compilers that support precompilation, includes "wx.h". |
| 13 | #include "wx/wxprec.h" |
| 14 | |
| 15 | #ifndef WX_PRECOMP |
| 16 | #include "wx/button.h" |
| 17 | #include "wx/brush.h" |
| 18 | #include "wx/panel.h" |
| 19 | #include "wx/bmpbuttn.h" |
| 20 | #include "wx/settings.h" |
| 21 | #include "wx/dcscreen.h" |
| 22 | #endif |
| 23 | |
| 24 | #include "wx/os2/private.h" |
| 25 | |
| 26 | IMPLEMENT_DYNAMIC_CLASS(wxButton, wxControl) |
| 27 | |
| 28 | // Button |
| 29 | |
| 30 | bool wxButton::Create(wxWindow *parent, wxWindowID id, const wxString& label, |
| 31 | const wxPoint& pos, |
| 32 | const wxSize& size, long style, |
| 33 | #if wxUSE_VALIDATORS |
| 34 | const wxValidator& validator, |
| 35 | #endif |
| 36 | const wxString& name) |
| 37 | { |
| 38 | SetName(name); |
| 39 | #if wxUSE_VALIDATORS |
| 40 | SetValidator(validator); |
| 41 | #endif |
| 42 | m_windowStyle = style; |
| 43 | |
| 44 | parent->AddChild((wxButton *)this); |
| 45 | |
| 46 | if (id == -1) |
| 47 | m_windowId = NewControlId(); |
| 48 | else |
| 49 | m_windowId = id; |
| 50 | |
| 51 | // TODO: create button |
| 52 | |
| 53 | return FALSE; |
| 54 | } |
| 55 | |
| 56 | wxButton::~wxButton() |
| 57 | { |
| 58 | wxPanel *panel = wxDynamicCast(GetParent(), wxPanel); |
| 59 | if ( panel ) |
| 60 | { |
| 61 | if ( panel->GetDefaultItem() == this ) |
| 62 | { |
| 63 | // don't leave the panel with invalid default item |
| 64 | panel->SetDefaultItem(NULL); |
| 65 | } |
| 66 | } |
| 67 | } |
| 68 | |
| 69 | // ---------------------------------------------------------------------------- |
| 70 | // size management including autosizing |
| 71 | // ---------------------------------------------------------------------------- |
| 72 | |
| 73 | wxSize wxButton::DoGetBestSize() const |
| 74 | { |
| 75 | wxString label = wxGetWindowText(GetHWND()); |
| 76 | int wBtn; |
| 77 | GetTextExtent(label, &wBtn, NULL); |
| 78 | |
| 79 | int wChar, hChar; |
| 80 | wxGetCharSize(GetHWND(), &wChar, &hChar, (wxFont*)&GetFont()); |
| 81 | |
| 82 | // add a margin - the button is wider than just its label |
| 83 | wBtn += 3*wChar; |
| 84 | |
| 85 | // the button height is proportional to the height of the font used |
| 86 | int hBtn = 0;// TODO: BUTTON_HEIGHT_FROM_CHAR_HEIGHT(hChar); |
| 87 | |
| 88 | return wxSize(wBtn, hBtn); |
| 89 | } |
| 90 | |
| 91 | /* static */ |
| 92 | wxSize wxButton::GetDefaultSize() |
| 93 | { |
| 94 | static wxSize s_sizeBtn; |
| 95 | |
| 96 | if ( s_sizeBtn.x == 0 ) |
| 97 | { |
| 98 | wxScreenDC dc; |
| 99 | dc.SetFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT)); |
| 100 | |
| 101 | // the size of a standard button in the dialog units is 50x14, |
| 102 | // translate this to pixels |
| 103 | // NB1: the multipliers come from the Windows convention |
| 104 | // NB2: the extra +1/+2 were needed to get the size be the same as the |
| 105 | // size of the buttons in the standard dialog - I don't know how |
| 106 | // this happens, but on my system this size is 75x23 in pixels and |
| 107 | // 23*8 isn't even divisible by 14... Would be nice to understand |
| 108 | // why these constants are needed though! |
| 109 | s_sizeBtn.x = (50 * (dc.GetCharWidth() + 1))/4; |
| 110 | s_sizeBtn.y = ((14 * dc.GetCharHeight()) + 2)/8; |
| 111 | } |
| 112 | |
| 113 | return s_sizeBtn; |
| 114 | } |
| 115 | |
| 116 | void wxButton::Command (wxCommandEvent & event) |
| 117 | { |
| 118 | ProcessCommand (event); |
| 119 | } |
| 120 | |
| 121 | // ---------------------------------------------------------------------------- |
| 122 | // helpers |
| 123 | // ---------------------------------------------------------------------------- |
| 124 | |
| 125 | bool wxButton::SendClickEvent() |
| 126 | { |
| 127 | wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, GetId()); |
| 128 | event.SetEventObject(this); |
| 129 | |
| 130 | return ProcessCommand(event); |
| 131 | } |
| 132 | |
| 133 | void wxButton::SetDefault() |
| 134 | { |
| 135 | wxWindow *parent = GetParent(); |
| 136 | wxButton *btnOldDefault = NULL; |
| 137 | wxPanel *panel = wxDynamicCast(parent, wxPanel); |
| 138 | if (panel) |
| 139 | panel->SetDefaultItem(this); |
| 140 | |
| 141 | // TODO: make button the default |
| 142 | } |
| 143 | |
| 144 | // ---------------------------------------------------------------------------- |
| 145 | // event/message handlers |
| 146 | // ---------------------------------------------------------------------------- |
| 147 | |
| 148 | bool wxButton::OS2Command(WXUINT param, WXWORD id) |
| 149 | { |
| 150 | bool processed = FALSE; |
| 151 | // TODO |
| 152 | /* |
| 153 | switch ( param ) |
| 154 | { |
| 155 | case 1: // 1 for accelerator |
| 156 | case BN_CLICKED: |
| 157 | processed = SendClickEvent(); |
| 158 | break; |
| 159 | } |
| 160 | */ |
| 161 | return processed; |
| 162 | } |
| 163 | |
| 164 | WXHBRUSH wxButton::OnCtlColor(WXHDC pDC, |
| 165 | WXHWND pWnd, |
| 166 | WXUINT nCtlColor, |
| 167 | WXUINT message, |
| 168 | WXWPARAM wParam, |
| 169 | WXLPARAM lParam) |
| 170 | { |
| 171 | wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID); |
| 172 | |
| 173 | return (WXHBRUSH) backgroundBrush->GetResourceHandle(); |
| 174 | } |
| 175 | |
| 176 | |