c20889abf8
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@28797 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
315 lines
8.8 KiB
C++
315 lines
8.8 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: button.cpp
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// Purpose:
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// Author: Robert Roebling
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// Id: $Id$
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// Copyright: (c) 1998 Robert Roebling
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
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#pragma implementation "button.h"
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#endif
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#include "wx/defs.h"
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#if wxUSE_BUTTON
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#include "wx/button.h"
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#include "wx/gtk/private.h"
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//-----------------------------------------------------------------------------
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// classes
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//-----------------------------------------------------------------------------
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class wxButton;
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//-----------------------------------------------------------------------------
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// idle system
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//-----------------------------------------------------------------------------
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extern void wxapp_install_idle_handler();
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extern bool g_isIdle;
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//-----------------------------------------------------------------------------
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// data
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//-----------------------------------------------------------------------------
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extern bool g_blockEventsOnDrag;
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//-----------------------------------------------------------------------------
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// "clicked"
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//-----------------------------------------------------------------------------
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static void gtk_button_clicked_callback( GtkWidget *WXUNUSED(widget), wxButton *button )
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{
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if (g_isIdle)
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wxapp_install_idle_handler();
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if (!button->m_hasVMT) return;
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if (g_blockEventsOnDrag) return;
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wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, button->GetId());
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event.SetEventObject(button);
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button->GetEventHandler()->ProcessEvent(event);
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}
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//-----------------------------------------------------------------------------
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// wxButton
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//-----------------------------------------------------------------------------
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IMPLEMENT_DYNAMIC_CLASS(wxButton,wxControl)
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wxButton::wxButton()
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{
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}
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wxButton::~wxButton()
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{
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}
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bool wxButton::Create( wxWindow *parent, wxWindowID id, const wxString &label,
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const wxPoint &pos, const wxSize &size,
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long style, const wxValidator& validator, const wxString &name )
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{
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m_needParent = TRUE;
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m_acceptsFocus = TRUE;
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if (!PreCreation( parent, pos, size ) ||
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!CreateBase( parent, id, pos, size, style, validator, name ))
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{
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wxFAIL_MSG( wxT("wxButton creation failed") );
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return FALSE;
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}
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/*
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wxString label2( label );
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for (size_t i = 0; i < label2.Len(); i++)
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{
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if (label2.GetChar(i) == wxT('&'))
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label2.SetChar(i,wxT('_'));
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}
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GtkWidget *accel_label = gtk_accel_label_new( label2.mb_str() );
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gtk_widget_show( accel_label );
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m_widget = gtk_button_new();
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gtk_container_add( GTK_CONTAINER(m_widget), accel_label );
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gtk_accel_label_set_accel_widget( GTK_ACCEL_LABEL(accel_label), m_widget );
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guint accel_key = gtk_label_parse_uline (GTK_LABEL(accel_label), label2.mb_str() );
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gtk_accel_label_refetch( GTK_ACCEL_LABEL(accel_label) );
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wxControl::SetLabel( label );
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*/
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#ifdef __WXGTK20__
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if (m_widget == NULL) // may be !=NULL if stock form of Create was used
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m_widget = gtk_button_new_with_mnemonic("");
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#else
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m_widget = gtk_button_new_with_label("");
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#endif
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float x_alignment = 0.5;
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if (HasFlag(wxBU_LEFT))
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x_alignment = 0.0;
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else if (HasFlag(wxBU_RIGHT))
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x_alignment = 1.0;
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float y_alignment = 0.5;
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if (HasFlag(wxBU_TOP))
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y_alignment = 0.0;
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else if (HasFlag(wxBU_BOTTOM))
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y_alignment = 1.0;
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#if GTK_CHECK_VERSION(2,4,0)
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gtk_button_set_alignment(GTK_BUTTON(m_widget), x_alignment, y_alignment);
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#else
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if (GTK_IS_MISC(BUTTON_CHILD(m_widget)))
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gtk_misc_set_alignment (GTK_MISC (BUTTON_CHILD (m_widget)),
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x_alignment, y_alignment);
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#endif
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if (!label.empty())
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SetLabel(label);
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if (style & wxNO_BORDER)
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gtk_button_set_relief( GTK_BUTTON(m_widget), GTK_RELIEF_NONE );
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gtk_signal_connect( GTK_OBJECT(m_widget), "clicked",
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GTK_SIGNAL_FUNC(gtk_button_clicked_callback), (gpointer*)this );
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m_parent->DoAddChild( this );
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PostCreation(size);
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return true;
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}
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bool wxButton::Create(wxWindow *parent, wxWindowID id, wxStockItemID stock,
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const wxString& descriptiveLabel,
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const wxPoint& pos, long style,
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const wxValidator& validator, const wxString& name)
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{
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#ifdef __WXGTK20__
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const char *gtkstock = wxStockItemToGTK(stock);
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if (gtkstock)
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{
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m_widget = gtk_button_new_from_stock(gtkstock);
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return Create(parent, id, wxEmptyString,
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pos, wxDefaultSize, style, validator, name);
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}
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else
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{
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// not supported by this GTK+ version
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return Create(parent, id, wxGetStockItemLabel(stock),
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pos, wxDefaultSize, style, validator, name);
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}
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#else
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return CreateStock(parent, id, stock, descriptiveLabel,
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pos, style, validator, name);
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#endif
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}
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void wxButton::SetDefault()
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{
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wxWindow *parent = GetParent();
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wxCHECK_RET( parent, _T("button without parent?") );
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parent->SetDefaultItem(this);
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GTK_WIDGET_SET_FLAGS( m_widget, GTK_CAN_DEFAULT );
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gtk_widget_grab_default( m_widget );
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SetSize( m_x, m_y, m_width, m_height );
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}
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/* static */
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wxSize wxButtonBase::GetDefaultSize()
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{
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#ifdef __WXGTK20__
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static wxSize size = wxDefaultSize;
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if (size == wxDefaultSize)
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{
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// NB: Default size of buttons should be same as size of stock
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// buttons as used in most GTK+ apps. Unfortunately it's a little
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// tricky to obtain this size: stock button's size may be smaller
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// than size of button in GtkButtonBox and vice versa,
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// GtkButtonBox's minimal button size may be smaller than stock
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// button's size. We have to retrieve both values and combine them.
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GtkWidget *wnd = gtk_window_new(GTK_WINDOW_TOPLEVEL);
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GtkWidget *box = gtk_hbutton_box_new();
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GtkWidget *btn = gtk_button_new_from_stock(GTK_STOCK_CANCEL);
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gtk_container_add(GTK_CONTAINER(box), btn);
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gtk_container_add(GTK_CONTAINER(wnd), box);
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GtkRequisition req;
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gtk_widget_size_request(btn, &req);
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gint minwidth, minheight;
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gtk_widget_style_get(box,
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"child-min-width", &minwidth,
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"child-min-height", &minheight,
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NULL);
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size.x = wxMax(minwidth, req.width);
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size.y = wxMax(minheight, req.height);
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gtk_widget_destroy(wnd);
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}
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return size;
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#else
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return wxSize(80,26);
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#endif
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}
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void wxButton::SetLabel( const wxString &label )
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{
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wxCHECK_RET( m_widget != NULL, wxT("invalid button") );
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wxControl::SetLabel( label );
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#ifdef __WXGTK20__
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wxString label2 = PrepareLabelMnemonics( label );
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gtk_button_set_label( GTK_BUTTON(m_widget), wxGTK_CONV(label2) );
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#else
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gtk_label_set( GTK_LABEL( BUTTON_CHILD(m_widget) ), wxGTK_CONV( GetLabel() ) );
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#endif
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}
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bool wxButton::Enable( bool enable )
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{
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if ( !wxControl::Enable( enable ) )
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return FALSE;
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gtk_widget_set_sensitive( BUTTON_CHILD(m_widget), enable );
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return TRUE;
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}
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bool wxButton::IsOwnGtkWindow( GdkWindow *window )
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{
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#ifdef __WXGTK20__
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return GTK_BUTTON(m_widget)->event_window;
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#else
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return (window == m_widget->window);
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#endif
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}
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void wxButton::DoApplyWidgetStyle(GtkRcStyle *style)
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{
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gtk_widget_modify_style(m_widget, style);
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gtk_widget_modify_style(BUTTON_CHILD(m_widget), style);
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}
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wxSize wxButton::DoGetBestSize() const
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{
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// the default button in wxGTK is bigger than the other ones because of an
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// extra border around it, but we don't want to take it into account in
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// our size calculations (otherwsie the result is visually ugly), so
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// always return the size of non default button from here
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const bool isDefault = GTK_WIDGET_HAS_DEFAULT(m_widget);
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if ( isDefault )
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{
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// temporarily unset default flag
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GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_DEFAULT );
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}
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wxSize ret( wxControl::DoGetBestSize() );
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if ( isDefault )
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{
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// set it back again
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GTK_WIDGET_SET_FLAGS( m_widget, GTK_CAN_DEFAULT );
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}
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#ifndef __WXGTK20__
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ret.x += 10; // add a few pixels for sloppy (but common) themes
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#endif
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if (!HasFlag(wxBU_EXACTFIT))
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{
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wxSize defaultSize = GetDefaultSize();
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if (ret.x < defaultSize.x) ret.x = defaultSize.x;
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if (ret.y < defaultSize.y) ret.y = defaultSize.y;
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}
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CacheBestSize(ret);
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return ret;
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}
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// static
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wxVisualAttributes
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wxButton::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
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{
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return GetDefaultAttributesFromGTKWidget(gtk_button_new);
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}
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#endif // wxUSE_BUTTON
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