| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: src/gtk/anybutton.cpp |
| 3 | // Purpose: |
| 4 | // Author: Robert Roebling |
| 5 | // Created: 1998-05-20 (extracted from button.cpp) |
| 6 | // Id: $Id$ |
| 7 | // Copyright: (c) 1998 Robert Roebling |
| 8 | // Licence: wxWindows licence |
| 9 | ///////////////////////////////////////////////////////////////////////////// |
| 10 | |
| 11 | // For compilers that support precompilation, includes "wx.h". |
| 12 | #include "wx/wxprec.h" |
| 13 | |
| 14 | #ifdef wxHAS_ANY_BUTTON |
| 15 | |
| 16 | #ifndef WX_PRECOMP |
| 17 | #include "wx/anybutton.h" |
| 18 | #endif |
| 19 | |
| 20 | #include "wx/stockitem.h" |
| 21 | |
| 22 | #include <gtk/gtk.h> |
| 23 | #include "wx/gtk/private/gtk2-compat.h" |
| 24 | |
| 25 | // ---------------------------------------------------------------------------- |
| 26 | // GTK callbacks |
| 27 | // ---------------------------------------------------------------------------- |
| 28 | |
| 29 | extern "C" |
| 30 | { |
| 31 | |
| 32 | static void |
| 33 | wxgtk_button_enter_callback(GtkWidget *WXUNUSED(widget), wxAnyButton *button) |
| 34 | { |
| 35 | if ( button->GTKShouldIgnoreEvent() ) |
| 36 | return; |
| 37 | |
| 38 | button->GTKMouseEnters(); |
| 39 | } |
| 40 | |
| 41 | static void |
| 42 | wxgtk_button_leave_callback(GtkWidget *WXUNUSED(widget), wxAnyButton *button) |
| 43 | { |
| 44 | if ( button->GTKShouldIgnoreEvent() ) |
| 45 | return; |
| 46 | |
| 47 | button->GTKMouseLeaves(); |
| 48 | } |
| 49 | |
| 50 | static void |
| 51 | wxgtk_button_press_callback(GtkWidget *WXUNUSED(widget), wxAnyButton *button) |
| 52 | { |
| 53 | if ( button->GTKShouldIgnoreEvent() ) |
| 54 | return; |
| 55 | |
| 56 | button->GTKPressed(); |
| 57 | } |
| 58 | |
| 59 | static void |
| 60 | wxgtk_button_released_callback(GtkWidget *WXUNUSED(widget), wxAnyButton *button) |
| 61 | { |
| 62 | if ( button->GTKShouldIgnoreEvent() ) |
| 63 | return; |
| 64 | |
| 65 | button->GTKReleased(); |
| 66 | } |
| 67 | |
| 68 | } // extern "C" |
| 69 | |
| 70 | //----------------------------------------------------------------------------- |
| 71 | // wxAnyButton |
| 72 | //----------------------------------------------------------------------------- |
| 73 | |
| 74 | bool wxAnyButton::Enable( bool enable ) |
| 75 | { |
| 76 | if (!base_type::Enable(enable)) |
| 77 | return false; |
| 78 | |
| 79 | gtk_widget_set_sensitive(gtk_bin_get_child(GTK_BIN(m_widget)), enable); |
| 80 | |
| 81 | if (enable) |
| 82 | GTKFixSensitivity(); |
| 83 | |
| 84 | GTKUpdateBitmap(); |
| 85 | |
| 86 | return true; |
| 87 | } |
| 88 | |
| 89 | GdkWindow *wxAnyButton::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const |
| 90 | { |
| 91 | return gtk_button_get_event_window(GTK_BUTTON(m_widget)); |
| 92 | } |
| 93 | |
| 94 | // static |
| 95 | wxVisualAttributes |
| 96 | wxAnyButton::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant)) |
| 97 | { |
| 98 | return GetDefaultAttributesFromGTKWidget(gtk_button_new); |
| 99 | } |
| 100 | |
| 101 | // ---------------------------------------------------------------------------- |
| 102 | // bitmaps support |
| 103 | // ---------------------------------------------------------------------------- |
| 104 | |
| 105 | void wxAnyButton::GTKMouseEnters() |
| 106 | { |
| 107 | m_isCurrent = true; |
| 108 | |
| 109 | GTKUpdateBitmap(); |
| 110 | } |
| 111 | |
| 112 | void wxAnyButton::GTKMouseLeaves() |
| 113 | { |
| 114 | m_isCurrent = false; |
| 115 | |
| 116 | GTKUpdateBitmap(); |
| 117 | } |
| 118 | |
| 119 | void wxAnyButton::GTKPressed() |
| 120 | { |
| 121 | m_isPressed = true; |
| 122 | |
| 123 | GTKUpdateBitmap(); |
| 124 | } |
| 125 | |
| 126 | void wxAnyButton::GTKReleased() |
| 127 | { |
| 128 | m_isPressed = false; |
| 129 | |
| 130 | GTKUpdateBitmap(); |
| 131 | } |
| 132 | |
| 133 | void wxAnyButton::GTKOnFocus(wxFocusEvent& event) |
| 134 | { |
| 135 | event.Skip(); |
| 136 | |
| 137 | GTKUpdateBitmap(); |
| 138 | } |
| 139 | |
| 140 | wxAnyButton::State wxAnyButton::GTKGetCurrentState() const |
| 141 | { |
| 142 | if ( !IsThisEnabled() ) |
| 143 | return m_bitmaps[State_Disabled].IsOk() ? State_Disabled : State_Normal; |
| 144 | |
| 145 | if ( m_isPressed && m_bitmaps[State_Pressed].IsOk() ) |
| 146 | return State_Pressed; |
| 147 | |
| 148 | if ( m_isCurrent && m_bitmaps[State_Current].IsOk() ) |
| 149 | return State_Current; |
| 150 | |
| 151 | if ( HasFocus() && m_bitmaps[State_Focused].IsOk() ) |
| 152 | return State_Focused; |
| 153 | |
| 154 | return State_Normal; |
| 155 | } |
| 156 | |
| 157 | void wxAnyButton::GTKUpdateBitmap() |
| 158 | { |
| 159 | // if we don't show bitmaps at all, there is nothing to update |
| 160 | if ( m_bitmaps[State_Normal].IsOk() ) |
| 161 | { |
| 162 | // if we do show them, this will return a state for which we do have a |
| 163 | // valid bitmap |
| 164 | State state = GTKGetCurrentState(); |
| 165 | |
| 166 | GTKDoShowBitmap(m_bitmaps[state]); |
| 167 | } |
| 168 | } |
| 169 | |
| 170 | void wxAnyButton::GTKDoShowBitmap(const wxBitmap& bitmap) |
| 171 | { |
| 172 | wxASSERT_MSG( bitmap.IsOk(), "invalid bitmap" ); |
| 173 | |
| 174 | GtkWidget *image; |
| 175 | if ( DontShowLabel() ) |
| 176 | { |
| 177 | image = gtk_bin_get_child(GTK_BIN(m_widget)); |
| 178 | } |
| 179 | else // have both label and bitmap |
| 180 | { |
| 181 | image = gtk_button_get_image(GTK_BUTTON(m_widget)); |
| 182 | } |
| 183 | |
| 184 | wxCHECK_RET( image && GTK_IS_IMAGE(image), "must have image widget" ); |
| 185 | |
| 186 | gtk_image_set_from_pixbuf(GTK_IMAGE(image), bitmap.GetPixbuf()); |
| 187 | } |
| 188 | |
| 189 | wxBitmap wxAnyButton::DoGetBitmap(State which) const |
| 190 | { |
| 191 | return m_bitmaps[which]; |
| 192 | } |
| 193 | |
| 194 | void wxAnyButton::DoSetBitmap(const wxBitmap& bitmap, State which) |
| 195 | { |
| 196 | switch ( which ) |
| 197 | { |
| 198 | case State_Normal: |
| 199 | if ( DontShowLabel() ) |
| 200 | { |
| 201 | // we only have the bitmap in this button, never remove it but |
| 202 | // do invalidate the best size when the bitmap (and presumably |
| 203 | // its size) changes |
| 204 | InvalidateBestSize(); |
| 205 | } |
| 206 | // normal image is special: setting it enables images for the button and |
| 207 | // resetting it to nothing disables all of them |
| 208 | else |
| 209 | { |
| 210 | GtkWidget *image = gtk_button_get_image(GTK_BUTTON(m_widget)); |
| 211 | if ( image && !bitmap.IsOk() ) |
| 212 | { |
| 213 | gtk_container_remove(GTK_CONTAINER(m_widget), image); |
| 214 | } |
| 215 | else if ( !image && bitmap.IsOk() ) |
| 216 | { |
| 217 | image = gtk_image_new(); |
| 218 | gtk_button_set_image(GTK_BUTTON(m_widget), image); |
| 219 | } |
| 220 | else // image presence or absence didn't change |
| 221 | { |
| 222 | // don't invalidate best size below |
| 223 | break; |
| 224 | } |
| 225 | |
| 226 | InvalidateBestSize(); |
| 227 | } |
| 228 | break; |
| 229 | |
| 230 | case State_Pressed: |
| 231 | if ( bitmap.IsOk() ) |
| 232 | { |
| 233 | if ( !m_bitmaps[which].IsOk() ) |
| 234 | { |
| 235 | // we need to install the callbacks to be notified about |
| 236 | // the button pressed state change |
| 237 | g_signal_connect |
| 238 | ( |
| 239 | m_widget, |
| 240 | "pressed", |
| 241 | G_CALLBACK(wxgtk_button_press_callback), |
| 242 | this |
| 243 | ); |
| 244 | |
| 245 | g_signal_connect |
| 246 | ( |
| 247 | m_widget, |
| 248 | "released", |
| 249 | G_CALLBACK(wxgtk_button_released_callback), |
| 250 | this |
| 251 | ); |
| 252 | } |
| 253 | } |
| 254 | else // no valid bitmap |
| 255 | { |
| 256 | if ( m_bitmaps[which].IsOk() ) |
| 257 | { |
| 258 | // we don't need to be notified about the button pressed |
| 259 | // state changes any more |
| 260 | g_signal_handlers_disconnect_by_func |
| 261 | ( |
| 262 | m_widget, |
| 263 | (gpointer)wxgtk_button_press_callback, |
| 264 | this |
| 265 | ); |
| 266 | |
| 267 | g_signal_handlers_disconnect_by_func |
| 268 | ( |
| 269 | m_widget, |
| 270 | (gpointer)wxgtk_button_released_callback, |
| 271 | this |
| 272 | ); |
| 273 | |
| 274 | // also make sure we don't remain stuck in pressed state |
| 275 | if ( m_isPressed ) |
| 276 | { |
| 277 | m_isPressed = false; |
| 278 | GTKUpdateBitmap(); |
| 279 | } |
| 280 | } |
| 281 | } |
| 282 | break; |
| 283 | |
| 284 | case State_Current: |
| 285 | // the logic here is the same as above for State_Pressed: we need |
| 286 | // to connect the handlers if we must be notified about the changes |
| 287 | // in the button current state and we disconnect them when/if we |
| 288 | // don't need them any more |
| 289 | if ( bitmap.IsOk() ) |
| 290 | { |
| 291 | if ( !m_bitmaps[which].IsOk() ) |
| 292 | { |
| 293 | g_signal_connect |
| 294 | ( |
| 295 | m_widget, |
| 296 | "enter", |
| 297 | G_CALLBACK(wxgtk_button_enter_callback), |
| 298 | this |
| 299 | ); |
| 300 | |
| 301 | g_signal_connect |
| 302 | ( |
| 303 | m_widget, |
| 304 | "leave", |
| 305 | G_CALLBACK(wxgtk_button_leave_callback), |
| 306 | this |
| 307 | ); |
| 308 | } |
| 309 | } |
| 310 | else // no valid bitmap |
| 311 | { |
| 312 | if ( m_bitmaps[which].IsOk() ) |
| 313 | { |
| 314 | g_signal_handlers_disconnect_by_func |
| 315 | ( |
| 316 | m_widget, |
| 317 | (gpointer)wxgtk_button_enter_callback, |
| 318 | this |
| 319 | ); |
| 320 | |
| 321 | g_signal_handlers_disconnect_by_func |
| 322 | ( |
| 323 | m_widget, |
| 324 | (gpointer)wxgtk_button_leave_callback, |
| 325 | this |
| 326 | ); |
| 327 | |
| 328 | if ( m_isCurrent ) |
| 329 | { |
| 330 | m_isCurrent = false; |
| 331 | GTKUpdateBitmap(); |
| 332 | } |
| 333 | } |
| 334 | } |
| 335 | break; |
| 336 | |
| 337 | case State_Focused: |
| 338 | if ( bitmap.IsOk() ) |
| 339 | { |
| 340 | Connect(wxEVT_SET_FOCUS, |
| 341 | wxFocusEventHandler(wxAnyButton::GTKOnFocus)); |
| 342 | Connect(wxEVT_KILL_FOCUS, |
| 343 | wxFocusEventHandler(wxAnyButton::GTKOnFocus)); |
| 344 | } |
| 345 | else // no valid focused bitmap |
| 346 | { |
| 347 | Disconnect(wxEVT_SET_FOCUS, |
| 348 | wxFocusEventHandler(wxAnyButton::GTKOnFocus)); |
| 349 | Disconnect(wxEVT_KILL_FOCUS, |
| 350 | wxFocusEventHandler(wxAnyButton::GTKOnFocus)); |
| 351 | } |
| 352 | break; |
| 353 | |
| 354 | default: |
| 355 | // no callbacks to connect/disconnect |
| 356 | ; |
| 357 | } |
| 358 | |
| 359 | m_bitmaps[which] = bitmap; |
| 360 | |
| 361 | // update the bitmap immediately if necessary, otherwise it will be done |
| 362 | // when the bitmap for the corresponding state is needed the next time by |
| 363 | // GTKUpdateBitmap() |
| 364 | if ( bitmap.IsOk() && which == GTKGetCurrentState() ) |
| 365 | { |
| 366 | GTKDoShowBitmap(bitmap); |
| 367 | } |
| 368 | } |
| 369 | |
| 370 | void wxAnyButton::DoSetBitmapPosition(wxDirection dir) |
| 371 | { |
| 372 | #ifdef __WXGTK210__ |
| 373 | if ( !gtk_check_version(2,10,0) ) |
| 374 | { |
| 375 | GtkPositionType gtkpos; |
| 376 | switch ( dir ) |
| 377 | { |
| 378 | default: |
| 379 | wxFAIL_MSG( "invalid position" ); |
| 380 | // fall through |
| 381 | |
| 382 | case wxLEFT: |
| 383 | gtkpos = GTK_POS_LEFT; |
| 384 | break; |
| 385 | |
| 386 | case wxRIGHT: |
| 387 | gtkpos = GTK_POS_RIGHT; |
| 388 | break; |
| 389 | |
| 390 | case wxTOP: |
| 391 | gtkpos = GTK_POS_TOP; |
| 392 | break; |
| 393 | |
| 394 | case wxBOTTOM: |
| 395 | gtkpos = GTK_POS_BOTTOM; |
| 396 | break; |
| 397 | } |
| 398 | |
| 399 | gtk_button_set_image_position(GTK_BUTTON(m_widget), gtkpos); |
| 400 | InvalidateBestSize(); |
| 401 | } |
| 402 | #endif // GTK+ 2.10+ |
| 403 | } |
| 404 | |
| 405 | #endif // wxHAS_ANY_BUTTON |