X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/7be740a3fdba6e7203bd82c1674f48207dc00eed..5778dedc92f6d31435aa1cda6846979a0e9ad35b:/src/gtk/button.cpp diff --git a/src/gtk/button.cpp b/src/gtk/button.cpp index 71b8bd98ff..88e29ac4f3 100644 --- a/src/gtk/button.cpp +++ b/src/gtk/button.cpp @@ -20,35 +20,66 @@ #include "wx/gtk/private.h" -//----------------------------------------------------------------------------- -// data -//----------------------------------------------------------------------------- - -extern bool g_blockEventsOnDrag; +// ---------------------------------------------------------------------------- +// GTK callbacks +// ---------------------------------------------------------------------------- -//----------------------------------------------------------------------------- -// "clicked" -//----------------------------------------------------------------------------- +extern "C" +{ -extern "C" { -static void gtk_button_clicked_callback( GtkWidget *WXUNUSED(widget), wxButton *button ) +static void +wxgtk_button_clicked_callback(GtkWidget *WXUNUSED(widget), wxButton *button) { - if (!button->m_hasVMT) return; - if (g_blockEventsOnDrag) return; + if ( button->GTKShouldIgnoreEvent() ) + return; wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, button->GetId()); event.SetEventObject(button); button->HandleWindowEvent(event); } + +static void +wxgtk_button_enter_callback(GtkWidget *WXUNUSED(widget), wxButton *button) +{ + if ( button->GTKShouldIgnoreEvent() ) + return; + + button->GTKMouseEnters(); +} + +static void +wxgtk_button_leave_callback(GtkWidget *WXUNUSED(widget), wxButton *button) +{ + if ( button->GTKShouldIgnoreEvent() ) + return; + + button->GTKMouseLeaves(); +} + +static void +wxgtk_button_press_callback(GtkWidget *WXUNUSED(widget), wxButton *button) +{ + if ( button->GTKShouldIgnoreEvent() ) + return; + + button->GTKPressed(); +} + +static void +wxgtk_button_released_callback(GtkWidget *WXUNUSED(widget), wxButton *button) +{ + if ( button->GTKShouldIgnoreEvent() ) + return; + + button->GTKReleased(); } //----------------------------------------------------------------------------- // "style_set" from m_widget //----------------------------------------------------------------------------- -extern "C" { static void -gtk_button_style_set_callback(GtkWidget* widget, GtkStyle*, wxButton* win) +wxgtk_button_style_set_callback(GtkWidget* widget, GtkStyle*, wxButton* win) { /* the default button has a border around it */ wxWindow* parent = win->GetParent(); @@ -67,7 +98,8 @@ gtk_button_style_set_callback(GtkWidget* widget, GtkStyle*, wxButton* win) } } } -} + +} // extern "C" //----------------------------------------------------------------------------- // wxButton @@ -91,7 +123,24 @@ bool wxButton::Create(wxWindow *parent, return false; } - m_widget = gtk_button_new_with_mnemonic(""); + // create either a standard button with text label (which may still contain + // an image under GTK+ 2.6+) or a bitmap-only button if we don't have any + // label + const bool + useLabel = !(style & wxBU_NOTEXT) && (!label.empty() || wxIsStockID(id)); + if ( useLabel ) + { + m_widget = gtk_button_new_with_mnemonic(""); + } + else // no label, suppose we will have a bitmap + { + m_widget = gtk_button_new(); + + GtkWidget *image = gtk_image_new(); + gtk_widget_show(image); + gtk_container_add(GTK_CONTAINER(m_widget), image); + } + g_object_ref(m_widget); float x_alignment = 0.5; @@ -108,17 +157,18 @@ bool wxButton::Create(wxWindow *parent, gtk_button_set_alignment(GTK_BUTTON(m_widget), x_alignment, y_alignment); - SetLabel(label); + if ( useLabel ) + SetLabel(label); if (style & wxNO_BORDER) gtk_button_set_relief( GTK_BUTTON(m_widget), GTK_RELIEF_NONE ); g_signal_connect_after (m_widget, "clicked", - G_CALLBACK (gtk_button_clicked_callback), + G_CALLBACK (wxgtk_button_clicked_callback), this); g_signal_connect_after (m_widget, "style_set", - G_CALLBACK (gtk_button_style_set_callback), + G_CALLBACK (wxgtk_button_style_set_callback), this); m_parent->DoAddChild( this ); @@ -137,7 +187,7 @@ wxWindow *wxButton::SetDefault() gtk_widget_grab_default( m_widget ); // resize for default border - gtk_button_style_set_callback( m_widget, NULL, this ); + wxgtk_button_style_set_callback( m_widget, NULL, this ); return oldDefault; } @@ -188,6 +238,10 @@ void wxButton::SetLabel( const wxString &lbl ) wxControl::SetLabel(label); + // don't use label if it was explicitly disabled + if ( HasFlag(wxBU_NOTEXT) ) + return; + if (wxIsStockID(m_windowId) && wxIsStockLabel(m_windowId, label)) { const char *stock = wxGetStockGtkID(m_windowId); @@ -199,6 +253,10 @@ void wxButton::SetLabel( const wxString &lbl ) } } + // this call is necessary if the button had been initially created without + // a (text) label -- then we didn't use gtk_button_new_with_mnemonic() and + // so "use-underline" GtkButton property remained unset + gtk_button_set_use_underline(GTK_BUTTON(m_widget), TRUE); const wxString labelGTK = GTKConvertMnemonics(label); gtk_button_set_label(GTK_BUTTON(m_widget), wxGTK_CONV(labelGTK)); gtk_button_set_use_stock(GTK_BUTTON(m_widget), FALSE); @@ -208,17 +266,15 @@ void wxButton::SetLabel( const wxString &lbl ) bool wxButton::Enable( bool enable ) { - bool isEnabled = IsEnabled(); - - if ( !wxControl::Enable( enable ) ) + if (!base_type::Enable(enable)) return false; gtk_widget_set_sensitive(GTK_BIN(m_widget)->child, enable); - if (!isEnabled && enable) - { + if (enable) GTKFixSensitivity(); - } + + GTKUpdateBitmap(); return true; } @@ -295,6 +351,106 @@ wxButton::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant)) // bitmaps support // ---------------------------------------------------------------------------- +void wxButton::GTKMouseEnters() +{ + m_isCurrent = true; + + GTKUpdateBitmap(); +} + +void wxButton::GTKMouseLeaves() +{ + m_isCurrent = false; + + GTKUpdateBitmap(); +} + +void wxButton::GTKPressed() +{ + m_isPressed = true; + + GTKUpdateBitmap(); +} + +void wxButton::GTKReleased() +{ + m_isPressed = false; + + GTKUpdateBitmap(); +} + +void wxButton::GTKOnFocus(wxFocusEvent& event) +{ + event.Skip(); + + GTKUpdateBitmap(); +} + +wxButton::State wxButton::GTKGetCurrentState() const +{ + if ( !IsThisEnabled() ) + return m_bitmaps[State_Disabled].IsOk() ? State_Disabled : State_Normal; + + if ( m_isPressed && m_bitmaps[State_Pressed].IsOk() ) + return State_Pressed; + + if ( m_isCurrent && m_bitmaps[State_Current].IsOk() ) + return State_Current; + + if ( HasFocus() && m_bitmaps[State_Focused].IsOk() ) + return State_Focused; + + return State_Normal; +} + +void wxButton::GTKUpdateBitmap() +{ + // if we don't show bitmaps at all, there is nothing to update + if ( m_bitmaps[State_Normal].IsOk() ) + { + // if we do show them, this will return a state for which we do have a + // valid bitmap + State state = GTKGetCurrentState(); + + GTKDoShowBitmap(m_bitmaps[state]); + } +} + +void wxButton::GTKDoShowBitmap(const wxBitmap& bitmap) +{ + wxASSERT_MSG( bitmap.IsOk(), "invalid bitmap" ); + + GtkWidget *image; + if ( DontShowLabel() ) + { + image = GTK_BIN(m_widget)->child; + } + else // have both label and bitmap + { +#ifdef __WXGTK26__ + if ( !gtk_check_version(2,6,0) ) + { + image = gtk_button_get_image(GTK_BUTTON(m_widget)); + } + else +#endif // __WXGTK26__ + { + // buttons with both label and bitmap are only supported with GTK+ + // 2.6 so far + // + // it shouldn't be difficult to implement them ourselves for the + // previous GTK+ versions by stuffing a container with a label and + // an image inside GtkButton but there doesn't seem to be much + // point in doing this for ancient GTK+ versions + return; + } + } + + wxCHECK_RET( image && GTK_IS_IMAGE(image), "must have image widget" ); + + gtk_image_set_from_pixbuf(GTK_IMAGE(image), bitmap.GetPixbuf()); +} + wxBitmap wxButton::DoGetBitmap(State which) const { return m_bitmaps[which]; @@ -302,36 +458,180 @@ wxBitmap wxButton::DoGetBitmap(State which) const void wxButton::DoSetBitmap(const wxBitmap& bitmap, State which) { -#ifdef __WXGTK26__ - // normal image is special: setting it enables images for the button and - // resetting it to nothing disables all of them - if ( which == State_Normal ) + switch ( which ) { - if ( !gtk_check_version(2,6,0) ) - { - GtkWidget *image = gtk_button_get_image(GTK_BUTTON(m_widget)); - if ( image && !bitmap.IsOk() ) + case State_Normal: + if ( DontShowLabel() ) { - gtk_container_remove(GTK_CONTAINER(m_widget), image); + // we only have the bitmap in this button, never remove it but + // do invalidate the best size when the bitmap (and presumably + // its size) changes InvalidateBestSize(); } - else if ( !image && bitmap.IsOk() ) +#ifdef __WXGTK26__ + // normal image is special: setting it enables images for the button and + // resetting it to nothing disables all of them + else if ( !gtk_check_version(2,6,0) ) { - image = gtk_image_new(); - gtk_button_set_image(GTK_BUTTON(m_widget), image); + GtkWidget *image = gtk_button_get_image(GTK_BUTTON(m_widget)); + if ( image && !bitmap.IsOk() ) + { + gtk_container_remove(GTK_CONTAINER(m_widget), image); + } + else if ( !image && bitmap.IsOk() ) + { + image = gtk_image_new(); + gtk_button_set_image(GTK_BUTTON(m_widget), image); + } + else // image presence or absence didn't change + { + // don't invalidate best size below + break; + } + InvalidateBestSize(); } - //else: image presence or absence didn't change +#endif // GTK+ 2.6+ + break; + case State_Pressed: if ( bitmap.IsOk() ) { - gtk_image_set_from_pixbuf(GTK_IMAGE(image), bitmap.GetPixbuf()); + if ( !m_bitmaps[which].IsOk() ) + { + // we need to install the callbacks to be notified about + // the button pressed state change + g_signal_connect + ( + m_widget, + "pressed", + G_CALLBACK(wxgtk_button_press_callback), + this + ); + + g_signal_connect + ( + m_widget, + "released", + G_CALLBACK(wxgtk_button_released_callback), + this + ); + } } - } + else // no valid bitmap + { + if ( m_bitmaps[which].IsOk() ) + { + // we don't need to be notified about the button pressed + // state changes any more + g_signal_handlers_disconnect_by_func + ( + m_widget, + (gpointer)wxgtk_button_press_callback, + this + ); + + g_signal_handlers_disconnect_by_func + ( + m_widget, + (gpointer)wxgtk_button_released_callback, + this + ); + + // also make sure we don't remain stuck in pressed state + if ( m_isPressed ) + { + m_isPressed = false; + GTKUpdateBitmap(); + } + } + } + break; + + case State_Current: + // the logic here is the same as above for State_Pressed: we need + // to connect the handlers if we must be notified about the changes + // in the button current state and we disconnect them when/if we + // don't need them any more + if ( bitmap.IsOk() ) + { + if ( !m_bitmaps[which].IsOk() ) + { + g_signal_connect + ( + m_widget, + "enter", + G_CALLBACK(wxgtk_button_enter_callback), + this + ); + + g_signal_connect + ( + m_widget, + "leave", + G_CALLBACK(wxgtk_button_leave_callback), + this + ); + } + } + else // no valid bitmap + { + if ( m_bitmaps[which].IsOk() ) + { + g_signal_handlers_disconnect_by_func + ( + m_widget, + (gpointer)wxgtk_button_enter_callback, + this + ); + + g_signal_handlers_disconnect_by_func + ( + m_widget, + (gpointer)wxgtk_button_leave_callback, + this + ); + + if ( m_isCurrent ) + { + m_isCurrent = false; + GTKUpdateBitmap(); + } + } + } + break; + + case State_Focused: + if ( bitmap.IsOk() ) + { + Connect(wxEVT_SET_FOCUS, + wxFocusEventHandler(wxButton::GTKOnFocus)); + Connect(wxEVT_KILL_FOCUS, + wxFocusEventHandler(wxButton::GTKOnFocus)); + } + else // no valid focused bitmap + { + Disconnect(wxEVT_SET_FOCUS, + wxFocusEventHandler(wxButton::GTKOnFocus)); + Disconnect(wxEVT_KILL_FOCUS, + wxFocusEventHandler(wxButton::GTKOnFocus)); + } + break; + + default: + // no callbacks to connect/disconnect + ; } -#endif // GTK+ 2.6+ m_bitmaps[which] = bitmap; + + // update the bitmap immediately if necessary, otherwise it will be done + // when the bitmap for the corresponding state is needed the next time by + // GTKUpdateBitmap() + if ( bitmap.IsOk() && which == GTKGetCurrentState() ) + { + GTKDoShowBitmap(bitmap); + } } void wxButton::DoSetBitmapPosition(wxDirection dir) @@ -364,6 +664,7 @@ void wxButton::DoSetBitmapPosition(wxDirection dir) } gtk_button_set_image_position(GTK_BUTTON(m_widget), gtkpos); + InvalidateBestSize(); } #endif // GTK+ 2.10+ }