X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/3417c2cd3d5cb05451270b5a09fe2355406158a3..c0c05e79b20d6ca372ece6ac5995b0e3db18a29b:/src/gtk/button.cpp diff --git a/src/gtk/button.cpp b/src/gtk/button.cpp index e109966054..88e29ac4f3 100644 --- a/src/gtk/button.cpp +++ b/src/gtk/button.cpp @@ -1,158 +1,672 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: button.cpp +// Name: src/gtk/button.cpp // Purpose: // Author: Robert Roebling // Id: $Id$ // Copyright: (c) 1998 Robert Roebling -// Licence: wxWindows licence +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -#ifdef __GNUG__ -#pragma implementation "button.h" -#endif - -#include "wx/button.h" - -#include "gdk/gdk.h" -#include "gtk/gtk.h" - -//----------------------------------------------------------------------------- -// classes -//----------------------------------------------------------------------------- +// For compilers that support precompilation, includes "wx.h". +#include "wx/wxprec.h" -class wxButton; +#if wxUSE_BUTTON -//----------------------------------------------------------------------------- -// idle system -//----------------------------------------------------------------------------- +#ifndef WX_PRECOMP + #include "wx/button.h" +#endif -extern void wxapp_install_idle_handler(); -extern bool g_isIdle; +#include "wx/stockitem.h" -//----------------------------------------------------------------------------- -// data -//----------------------------------------------------------------------------- +#include "wx/gtk/private.h" -extern bool g_blockEventsOnDrag; +// ---------------------------------------------------------------------------- +// GTK callbacks +// ---------------------------------------------------------------------------- -//----------------------------------------------------------------------------- -// "clicked" -//----------------------------------------------------------------------------- +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 (g_isIdle) - wxapp_install_idle_handler(); + if ( button->GTKShouldIgnoreEvent() ) + return; - if (!button->m_hasVMT) return; - if (g_blockEventsOnDrag) return; - wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, button->GetId()); event.SetEventObject(button); - button->GetEventHandler()->ProcessEvent(event); + button->HandleWindowEvent(event); } -//----------------------------------------------------------------------------- -// wxButton -//----------------------------------------------------------------------------- +static void +wxgtk_button_enter_callback(GtkWidget *WXUNUSED(widget), wxButton *button) +{ + if ( button->GTKShouldIgnoreEvent() ) + return; -IMPLEMENT_DYNAMIC_CLASS(wxButton,wxControl) + button->GTKMouseEnters(); +} -wxButton::wxButton() +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(); } -wxButton::~wxButton() +static void +wxgtk_button_released_callback(GtkWidget *WXUNUSED(widget), wxButton *button) { - if (m_clientData) delete m_clientData; + if ( button->GTKShouldIgnoreEvent() ) + return; + + button->GTKReleased(); } -bool wxButton::Create( wxWindow *parent, wxWindowID id, const wxString &label, - const wxPoint &pos, const wxSize &size, - long style, const wxValidator& validator, const wxString &name ) +//----------------------------------------------------------------------------- +// "style_set" from m_widget +//----------------------------------------------------------------------------- + +static void +wxgtk_button_style_set_callback(GtkWidget* widget, GtkStyle*, wxButton* win) { - m_clientData = (wxClientData*) NULL; - m_needParent = TRUE; - m_acceptsFocus = TRUE; + /* the default button has a border around it */ + wxWindow* parent = win->GetParent(); + if (parent && parent->m_wxwindow && GTK_WIDGET_CAN_DEFAULT(widget)) + { + GtkBorder* border = NULL; + gtk_widget_style_get(widget, "default_border", &border, NULL); + if (border) + { + win->MoveWindow( + win->m_x - border->left, + win->m_y - border->top, + win->m_width + border->left + border->right, + win->m_height + border->top + border->bottom); + gtk_border_free(border); + } + } +} + +} // extern "C" + +//----------------------------------------------------------------------------- +// wxButton +//----------------------------------------------------------------------------- + +IMPLEMENT_DYNAMIC_CLASS(wxButton,wxControl) +bool wxButton::Create(wxWindow *parent, + wxWindowID id, + const wxString &label, + const wxPoint& pos, + const wxSize& size, + long style, + const wxValidator& validator, + const wxString& name) +{ if (!PreCreation( parent, pos, size ) || !CreateBase( parent, id, pos, size, style, validator, name )) { - wxFAIL_MSG( _T("wxButton creation failed") ); - return FALSE; + wxFAIL_MSG( wxT("wxButton creation failed") ); + return false; } + // 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(); - m_widget = gtk_button_new_with_label( "" ); - -#if (GTK_MINOR_VERSION > 0) - if (style & wxNO_BORDER) - gtk_button_set_relief( GTK_BUTTON(m_widget), GTK_RELIEF_NONE ); -#endif + 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; + if (HasFlag(wxBU_LEFT)) + x_alignment = 0.0; + else if (HasFlag(wxBU_RIGHT)) + x_alignment = 1.0; - SetLabel(label); + float y_alignment = 0.5; + if (HasFlag(wxBU_TOP)) + y_alignment = 0.0; + else if (HasFlag(wxBU_BOTTOM)) + y_alignment = 1.0; - int x = 0; int y = 0; - wxFont new_font( parent->GetFont() ); - GetTextExtent( m_label, &x, &y, (int*)NULL, (int*)NULL, &new_font ); + gtk_button_set_alignment(GTK_BUTTON(m_widget), x_alignment, y_alignment); - wxSize newSize = size; - if (newSize.x == -1) newSize.x = 12+x; - if (newSize.y == -1) newSize.y = 11+y; - SetSize( newSize.x, newSize.y ); + if ( useLabel ) + SetLabel(label); - gtk_signal_connect( GTK_OBJECT(m_widget), "clicked", - GTK_SIGNAL_FUNC(gtk_button_clicked_callback), (gpointer*)this ); + if (style & wxNO_BORDER) + gtk_button_set_relief( GTK_BUTTON(m_widget), GTK_RELIEF_NONE ); + + g_signal_connect_after (m_widget, "clicked", + G_CALLBACK (wxgtk_button_clicked_callback), + this); + + g_signal_connect_after (m_widget, "style_set", + G_CALLBACK (wxgtk_button_style_set_callback), + this); m_parent->DoAddChild( this ); - - PostCreation(); - - SetBackgroundColour( parent->GetBackgroundColour() ); - SetForegroundColour( parent->GetForegroundColour() ); - SetFont( parent->GetFont() ); - Show( TRUE ); + PostCreation(size); - return TRUE; + return true; } -void wxButton::SetDefault(void) + +wxWindow *wxButton::SetDefault() { + wxWindow *oldDefault = wxButtonBase::SetDefault(); + GTK_WIDGET_SET_FLAGS( m_widget, GTK_CAN_DEFAULT ); gtk_widget_grab_default( m_widget ); - - SetSize( m_x, m_y, m_width, m_height ); + + // resize for default border + wxgtk_button_style_set_callback( m_widget, NULL, this ); + + return oldDefault; } /* static */ -wxSize wxButton::GetDefaultSize() +wxSize wxButtonBase::GetDefaultSize() { - return wxSize(80,26); + static wxSize size = wxDefaultSize; + if (size == wxDefaultSize) + { + // NB: Default size of buttons should be same as size of stock + // buttons as used in most GTK+ apps. Unfortunately it's a little + // tricky to obtain this size: stock button's size may be smaller + // than size of button in GtkButtonBox and vice versa, + // GtkButtonBox's minimal button size may be smaller than stock + // button's size. We have to retrieve both values and combine them. + + GtkWidget *wnd = gtk_window_new(GTK_WINDOW_TOPLEVEL); + GtkWidget *box = gtk_hbutton_box_new(); + GtkWidget *btn = gtk_button_new_from_stock(GTK_STOCK_CANCEL); + gtk_container_add(GTK_CONTAINER(box), btn); + gtk_container_add(GTK_CONTAINER(wnd), box); + GtkRequisition req; + gtk_widget_size_request(btn, &req); + + gint minwidth, minheight; + gtk_widget_style_get(box, + "child-min-width", &minwidth, + "child-min-height", &minheight, + NULL); + + size.x = wxMax(minwidth, req.width); + size.y = wxMax(minheight, req.height); + + gtk_widget_destroy(wnd); + } + return size; } -void wxButton::SetLabel( const wxString &label ) +void wxButton::SetLabel( const wxString &lbl ) { - wxCHECK_RET( m_widget != NULL, _T("invalid button") ); - - wxControl::SetLabel( label ); - - gtk_label_set( GTK_LABEL( GTK_BUTTON(m_widget)->child ), GetLabel().mbc_str() ); + wxCHECK_RET( m_widget != NULL, wxT("invalid button") ); + + wxString label(lbl); + + if (label.empty() && wxIsStockID(m_windowId)) + label = wxGetStockLabel(m_windowId); + + 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); + if (stock) + { + gtk_button_set_label(GTK_BUTTON(m_widget), stock); + gtk_button_set_use_stock(GTK_BUTTON(m_widget), TRUE); + return; + } + } + + // 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); + + GTKApplyWidgetStyle( false ); } bool wxButton::Enable( bool enable ) { - if ( !wxControl::Enable( enable ) ) - return FALSE; - - gtk_widget_set_sensitive( GTK_BUTTON(m_widget)->child, enable ); + if (!base_type::Enable(enable)) + return false; + + gtk_widget_set_sensitive(GTK_BIN(m_widget)->child, enable); - return TRUE; + if (enable) + GTKFixSensitivity(); + + GTKUpdateBitmap(); + + return true; } -void wxButton::ApplyWidgetStyle() +GdkWindow *wxButton::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const { - SetWidgetStyle(); - gtk_widget_set_style( m_widget, m_widgetStyle ); - gtk_widget_set_style( GTK_BUTTON(m_widget)->child, m_widgetStyle ); + return GTK_BUTTON(m_widget)->event_window; } + +void wxButton::DoApplyWidgetStyle(GtkRcStyle *style) +{ + gtk_widget_modify_style(m_widget, style); + GtkWidget *child = GTK_BIN(m_widget)->child; + gtk_widget_modify_style(child, style); + + // for buttons with images, the path to the label is (at least in 2.12) + // GtkButton -> GtkAlignment -> GtkHBox -> GtkLabel + if ( GTK_IS_ALIGNMENT(child) ) + { + GtkWidget *box = GTK_BIN(child)->child; + if ( GTK_IS_BOX(box) ) + { + for (GList* item = GTK_BOX(box)->children; item; item = item->next) + { + GtkBoxChild* boxChild = static_cast(item->data); + gtk_widget_modify_style(boxChild->widget, style); + } + } + } +} + +wxSize wxButton::DoGetBestSize() const +{ + // the default button in wxGTK is bigger than the other ones because of an + // extra border around it, but we don't want to take it into account in + // our size calculations (otherwise the result is visually ugly), so + // always return the size of non default button from here + const bool isDefault = GTK_WIDGET_HAS_DEFAULT(m_widget); + if ( isDefault ) + { + // temporarily unset default flag + GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_DEFAULT ); + } + + wxSize ret( wxControl::DoGetBestSize() ); + + if ( isDefault ) + { + // set it back again + GTK_WIDGET_SET_FLAGS( m_widget, GTK_CAN_DEFAULT ); + } + + if (!HasFlag(wxBU_EXACTFIT)) + { + wxSize defaultSize = GetDefaultSize(); + if (ret.x < defaultSize.x) + ret.x = defaultSize.x; + if (ret.y < defaultSize.y) + ret.y = defaultSize.y; + } + + CacheBestSize(ret); + return ret; +} + +// static +wxVisualAttributes +wxButton::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant)) +{ + return GetDefaultAttributesFromGTKWidget(gtk_button_new); +} + +// ---------------------------------------------------------------------------- +// 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]; +} + +void wxButton::DoSetBitmap(const wxBitmap& bitmap, State which) +{ + switch ( which ) + { + case State_Normal: + if ( DontShowLabel() ) + { + // 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(); + } +#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) ) + { + 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(); + } +#endif // GTK+ 2.6+ + break; + + case State_Pressed: + if ( bitmap.IsOk() ) + { + 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 + ; + } + + 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) +{ +#ifdef __WXGTK210__ + if ( !gtk_check_version(2,10,0) ) + { + GtkPositionType gtkpos; + switch ( dir ) + { + default: + wxFAIL_MSG( "invalid position" ); + // fall through + + case wxLEFT: + gtkpos = GTK_POS_LEFT; + break; + + case wxRIGHT: + gtkpos = GTK_POS_RIGHT; + break; + + case wxTOP: + gtkpos = GTK_POS_TOP; + break; + + case wxBOTTOM: + gtkpos = GTK_POS_BOTTOM; + break; + } + + gtk_button_set_image_position(GTK_BUTTON(m_widget), gtkpos); + InvalidateBestSize(); + } +#endif // GTK+ 2.10+ +} + +#endif // wxUSE_BUTTON