| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: src/gtk1/button.cpp |
| 3 | // Purpose: |
| 4 | // Author: Robert Roebling |
| 5 | // Id: $Id$ |
| 6 | // Copyright: (c) 1998 Robert Roebling |
| 7 | // Licence: wxWindows licence |
| 8 | ///////////////////////////////////////////////////////////////////////////// |
| 9 | |
| 10 | // For compilers that support precompilation, includes "wx.h". |
| 11 | #include "wx/wxprec.h" |
| 12 | |
| 13 | #if wxUSE_BUTTON |
| 14 | |
| 15 | #include "wx/button.h" |
| 16 | |
| 17 | #ifndef WX_PRECOMP |
| 18 | #include "wx/toplevel.h" |
| 19 | #endif |
| 20 | |
| 21 | #include "wx/stockitem.h" |
| 22 | |
| 23 | #include "wx/gtk1/private.h" |
| 24 | #include "wx/gtk1/win_gtk.h" |
| 25 | |
| 26 | //----------------------------------------------------------------------------- |
| 27 | // classes |
| 28 | //----------------------------------------------------------------------------- |
| 29 | |
| 30 | class wxButton; |
| 31 | |
| 32 | //----------------------------------------------------------------------------- |
| 33 | // idle system |
| 34 | //----------------------------------------------------------------------------- |
| 35 | |
| 36 | extern void wxapp_install_idle_handler(); |
| 37 | extern bool g_isIdle; |
| 38 | |
| 39 | //----------------------------------------------------------------------------- |
| 40 | // data |
| 41 | //----------------------------------------------------------------------------- |
| 42 | |
| 43 | extern bool g_blockEventsOnDrag; |
| 44 | |
| 45 | //----------------------------------------------------------------------------- |
| 46 | // "clicked" |
| 47 | //----------------------------------------------------------------------------- |
| 48 | |
| 49 | extern "C" { |
| 50 | static void gtk_button_clicked_callback( GtkWidget *WXUNUSED(widget), wxButton *button ) |
| 51 | { |
| 52 | if (g_isIdle) |
| 53 | wxapp_install_idle_handler(); |
| 54 | |
| 55 | if (!button->m_hasVMT) return; |
| 56 | if (g_blockEventsOnDrag) return; |
| 57 | |
| 58 | wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, button->GetId()); |
| 59 | event.SetEventObject(button); |
| 60 | button->GetEventHandler()->ProcessEvent(event); |
| 61 | } |
| 62 | } |
| 63 | |
| 64 | //----------------------------------------------------------------------------- |
| 65 | // "style_set" from m_widget |
| 66 | //----------------------------------------------------------------------------- |
| 67 | |
| 68 | static gint |
| 69 | gtk_button_style_set_callback( GtkWidget *m_widget, GtkStyle *WXUNUSED(style), wxButton *win ) |
| 70 | { |
| 71 | if (g_isIdle) |
| 72 | wxapp_install_idle_handler(); |
| 73 | |
| 74 | int left_border = 0; |
| 75 | int right_border = 0; |
| 76 | int top_border = 0; |
| 77 | int bottom_border = 0; |
| 78 | |
| 79 | /* the default button has a border around it */ |
| 80 | if (GTK_WIDGET_CAN_DEFAULT(m_widget)) |
| 81 | { |
| 82 | left_border = 6; |
| 83 | right_border = 6; |
| 84 | top_border = 6; |
| 85 | bottom_border = 5; |
| 86 | win->DoMoveWindow( win->m_x-top_border, |
| 87 | win->m_y-left_border, |
| 88 | win->m_width+left_border+right_border, |
| 89 | win->m_height+top_border+bottom_border ); |
| 90 | } |
| 91 | |
| 92 | return FALSE; |
| 93 | } |
| 94 | |
| 95 | //----------------------------------------------------------------------------- |
| 96 | // wxButton |
| 97 | //----------------------------------------------------------------------------- |
| 98 | |
| 99 | IMPLEMENT_DYNAMIC_CLASS(wxButton,wxControl) |
| 100 | |
| 101 | wxButton::wxButton() |
| 102 | { |
| 103 | } |
| 104 | |
| 105 | wxButton::~wxButton() |
| 106 | { |
| 107 | } |
| 108 | |
| 109 | bool wxButton::Create( wxWindow *parent, wxWindowID id, const wxString &label, |
| 110 | const wxPoint &pos, const wxSize &size, |
| 111 | long style, const wxValidator& validator, const wxString &name ) |
| 112 | { |
| 113 | m_needParent = true; |
| 114 | m_acceptsFocus = true; |
| 115 | |
| 116 | if (!PreCreation( parent, pos, size ) || |
| 117 | !CreateBase( parent, id, pos, size, style, validator, name )) |
| 118 | { |
| 119 | wxFAIL_MSG( wxT("wxButton creation failed") ); |
| 120 | return false; |
| 121 | } |
| 122 | |
| 123 | m_widget = gtk_button_new_with_label(""); |
| 124 | |
| 125 | float x_alignment = 0.5; |
| 126 | if (HasFlag(wxBU_LEFT)) |
| 127 | x_alignment = 0.0; |
| 128 | else if (HasFlag(wxBU_RIGHT)) |
| 129 | x_alignment = 1.0; |
| 130 | |
| 131 | float y_alignment = 0.5; |
| 132 | if (HasFlag(wxBU_TOP)) |
| 133 | y_alignment = 0.0; |
| 134 | else if (HasFlag(wxBU_BOTTOM)) |
| 135 | y_alignment = 1.0; |
| 136 | |
| 137 | if (GTK_IS_MISC(BUTTON_CHILD(m_widget))) |
| 138 | gtk_misc_set_alignment (GTK_MISC (BUTTON_CHILD (m_widget)), |
| 139 | x_alignment, y_alignment); |
| 140 | |
| 141 | SetLabel(label); |
| 142 | |
| 143 | if (style & wxNO_BORDER) |
| 144 | gtk_button_set_relief( GTK_BUTTON(m_widget), GTK_RELIEF_NONE ); |
| 145 | |
| 146 | gtk_signal_connect_after( GTK_OBJECT(m_widget), "clicked", |
| 147 | GTK_SIGNAL_FUNC(gtk_button_clicked_callback), (gpointer*)this ); |
| 148 | |
| 149 | gtk_signal_connect_after( GTK_OBJECT(m_widget), "style_set", |
| 150 | GTK_SIGNAL_FUNC(gtk_button_style_set_callback), (gpointer*) this ); |
| 151 | |
| 152 | m_parent->DoAddChild( this ); |
| 153 | |
| 154 | PostCreation(size); |
| 155 | |
| 156 | return true; |
| 157 | } |
| 158 | |
| 159 | |
| 160 | void wxButton::SetDefault() |
| 161 | { |
| 162 | wxTopLevelWindow *tlw = wxDynamicCast(wxGetTopLevelParent(this), wxTopLevelWindow); |
| 163 | wxCHECK_RET( tlw, _T("button without top level window?") ); |
| 164 | |
| 165 | tlw->SetDefaultItem(this); |
| 166 | |
| 167 | GTK_WIDGET_SET_FLAGS( m_widget, GTK_CAN_DEFAULT ); |
| 168 | gtk_widget_grab_default( m_widget ); |
| 169 | |
| 170 | // resize for default border |
| 171 | gtk_button_style_set_callback( m_widget, NULL, this ); |
| 172 | } |
| 173 | |
| 174 | /* static */ |
| 175 | wxSize wxButtonBase::GetDefaultSize() |
| 176 | { |
| 177 | return wxSize(80,26); |
| 178 | } |
| 179 | |
| 180 | void wxButton::SetLabel( const wxString &lbl ) |
| 181 | { |
| 182 | wxCHECK_RET( m_widget != NULL, wxT("invalid button") ); |
| 183 | |
| 184 | wxString label(lbl); |
| 185 | |
| 186 | if (label.empty() && wxIsStockID(m_windowId)) |
| 187 | label = wxGetStockLabel(m_windowId); |
| 188 | |
| 189 | wxControl::SetLabel(label); |
| 190 | |
| 191 | const wxString labelGTK = GTKRemoveMnemonics(label); |
| 192 | |
| 193 | gtk_label_set(GTK_LABEL(BUTTON_CHILD(m_widget)), wxGTK_CONV(labelGTK)); |
| 194 | } |
| 195 | |
| 196 | bool wxButton::Enable( bool enable ) |
| 197 | { |
| 198 | if ( !wxControl::Enable( enable ) ) |
| 199 | return false; |
| 200 | |
| 201 | gtk_widget_set_sensitive( BUTTON_CHILD(m_widget), enable ); |
| 202 | |
| 203 | return true; |
| 204 | } |
| 205 | |
| 206 | bool wxButton::IsOwnGtkWindow( GdkWindow *window ) |
| 207 | { |
| 208 | return (window == m_widget->window); |
| 209 | } |
| 210 | |
| 211 | void wxButton::DoApplyWidgetStyle(GtkRcStyle *style) |
| 212 | { |
| 213 | gtk_widget_modify_style(m_widget, style); |
| 214 | gtk_widget_modify_style(BUTTON_CHILD(m_widget), style); |
| 215 | } |
| 216 | |
| 217 | wxSize wxButton::DoGetBestSize() const |
| 218 | { |
| 219 | // the default button in wxGTK is bigger than the other ones because of an |
| 220 | // extra border around it, but we don't want to take it into account in |
| 221 | // our size calculations (otherwsie the result is visually ugly), so |
| 222 | // always return the size of non default button from here |
| 223 | const bool isDefault = GTK_WIDGET_HAS_DEFAULT(m_widget); |
| 224 | if ( isDefault ) |
| 225 | { |
| 226 | // temporarily unset default flag |
| 227 | GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_DEFAULT ); |
| 228 | } |
| 229 | |
| 230 | wxSize ret( wxControl::DoGetBestSize() ); |
| 231 | |
| 232 | if ( isDefault ) |
| 233 | { |
| 234 | // set it back again |
| 235 | GTK_WIDGET_SET_FLAGS( m_widget, GTK_CAN_DEFAULT ); |
| 236 | } |
| 237 | |
| 238 | ret.x += 10; // add a few pixels for sloppy (but common) themes |
| 239 | |
| 240 | if (!HasFlag(wxBU_EXACTFIT)) |
| 241 | { |
| 242 | wxSize defaultSize = GetDefaultSize(); |
| 243 | if (ret.x < defaultSize.x) ret.x = defaultSize.x; |
| 244 | if (ret.y < defaultSize.y) ret.y = defaultSize.y; |
| 245 | } |
| 246 | |
| 247 | CacheBestSize(ret); |
| 248 | return ret; |
| 249 | } |
| 250 | |
| 251 | // static |
| 252 | wxVisualAttributes |
| 253 | wxButton::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant)) |
| 254 | { |
| 255 | return GetDefaultAttributesFromGTKWidget(gtk_button_new); |
| 256 | } |
| 257 | |
| 258 | #endif // wxUSE_BUTTON |