3c1f8cb1f5
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@42259 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
299 lines
10 KiB
C++
299 lines
10 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: src/gtk/collpane.cpp
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// Purpose: wxCollapsiblePane
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// Author: Francesco Montorsi
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// Modified By:
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// Created: 8/10/2006
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// Id: $Id$
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// Copyright: (c) Francesco Montorsi
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#ifdef __WXGTK24__
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#include "wx/collpane.h"
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#include <gtk/gtkexpander.h>
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#include <gtk/gtk.h>
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// ============================================================================
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// implementation
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// ============================================================================
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/* DEBUG TIMER */
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class myTimer : public wxTimer
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{
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wxCollapsiblePane *p;
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public:
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myTimer(wxCollapsiblePane *pp) {p=pp;}
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void Notify()
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{
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//wxLogDebug(wxT("%d"), p->IsCollapsed());
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wxSize sz = p->GetBestSize();
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wxLogDebug(wxT("our best size is now: %d-%d"), sz.GetWidth(), sz.GetHeight());
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}
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};
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const wxChar wxCollapsiblePaneNameStr[] = wxT("CollapsiblePane");
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//-----------------------------------------------------------------------------
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// "notify::expanded" signal
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//-----------------------------------------------------------------------------
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extern "C" {
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static void gtk_collapsiblepane_expanded_callback (GObject *object,
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GParamSpec *param_spec,
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wxCollapsiblePane *p)
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{
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// NB: unlike for the "activate" signal, when this callback is called, if we try to
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// query the "collapsed" status through p->IsCollapsed(), we get the right value.
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// I.e. here p->IsCollapsed() will return false if this callback has been called
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// at the end of a collapsed->expanded transition and viceversa.
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// Inside the "activate" signal callback p->IsCollapsed() would return the wrong value!
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wxLogDebug("gtk_collapsiblepane_expanded_callback - IsCollapsed says %d", p->IsCollapsed());
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wxSize sz;
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if (!p->IsCollapsed())
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{
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// unfortunately there's no clean way to retrieve the minimal size of the expanded pane
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// in this handler or in other handlers for the signals generated by user clicks on the
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// GtkExpander button: p->GetBestSize() or p->GetMinSize() would still return the size for
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// the collapsed expander even if the collapsed->expanded transition has already been
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// completed (this because GTK+ queues some resize calls which still must be processed).
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// So, the only solution to correctly set the size hints for this window is to calculate
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// the expanded size ourselves, without relying on p->Get[Best|Min]Size:
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sz = p->GetMinSize();
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sz.SetWidth( wxMax(sz.GetWidth(), p->GetPane()->GetMinSize().GetWidth()) );
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sz.SetHeight( sz.GetHeight() + p->GetPane()->GetMinSize().GetHeight() + 10 );
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}
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else
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{
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// same problem described above: using p->Get[Best|Min]Size() here we would get the size
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// of the control when it is expanded even if the expanded->collapsed transition should be
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// complete now...
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// So, we use the size cached at control-creation time...
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sz = p->m_szCollapsed;
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}
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wxLogDebug(wxT("gtk_collapsiblepane_expanded_callback - my min size is now: %d-%d"),
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sz.GetWidth(), sz.GetHeight());
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// minimal size has priority over the best size so set here our min size
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p->SetMinSize(sz);
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p->SetSize(sz);
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wxWindow *top = p->GetTopLevelParent();
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if (top)
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{
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// we've changed our size, thus our top level parent needs to relayout itself
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top->Layout();
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// FIXME: this makes wxGenericCollapsiblePane behave as the user expect but
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// maybe there are cases where this is unwanted!
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if (top->GetSizer())
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#ifdef __WXGTK__
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// FIXME: the SetSizeHints() call would be required also for GTK+ for the
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// expanded->collapsed transition.
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// Unfortunately if we enable this line, then the GTK+ top window
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// won't always be resized by the SetClientSize() call below!
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// As a side effect of this dirty fix, the minimal size for the
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// pane window is not set in GTK+ and the user can hide it shrinking
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// the "top" window...
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if (p->IsCollapsed())
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#endif
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top->GetSizer()->SetSizeHints(top);
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if (p->IsCollapsed())
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{
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// NB: we need to use SetClientSize() and not SetSize() otherwise the size for
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// windows like e.g. wxFrames with wxMenubars won't be correctly set
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top->SetClientSize(sz);
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}
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else
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{
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// force our parent to "fit", i.e. expand so that it can honour
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// our minimal size
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top->Fit();
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}
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}
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if (p->m_bIgnoreNextChange)
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{
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// change generated programmatically - do not send an event!
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p->m_bIgnoreNextChange = false;
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return;
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}
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// fire an event
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wxCollapsiblePaneEvent ev(p, p->GetId(), p->IsCollapsed());
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p->GetEventHandler()->ProcessEvent(ev);
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}
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}
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static void gtk_collapsiblepane_insert_callback( wxWindowGTK* parent, wxWindowGTK* child )
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{
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// this callback should be used only once to insert the "pane" into
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// the GtkExpander widget. wxGenericCollapsiblePane::DoAddChild() will check
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// if it has been called only once (and in any case we would get a warning
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// from the following call as GtkExpander is a GtkBin and can contain only a
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// single child!).
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gtk_container_add (GTK_CONTAINER (parent->m_widget), child->m_widget);
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}
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//-----------------------------------------------------------------------------
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// wxCollapsiblePane
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//-----------------------------------------------------------------------------
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IMPLEMENT_DYNAMIC_CLASS(wxCollapsiblePane, wxGenericCollapsiblePane)
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BEGIN_EVENT_TABLE(wxCollapsiblePane, wxGenericCollapsiblePane)
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EVT_SIZE(wxCollapsiblePane::OnSize)
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END_EVENT_TABLE()
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bool wxCollapsiblePane::Create( wxWindow *parent, wxWindowID id,
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const wxString& label,
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const wxPoint& pos,
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const wxSize& size,
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long style,
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const wxValidator& val,
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const wxString& name)
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{
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if (gtk_check_version(2,4,0)) {wxASSERT(0);
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return wxGenericCollapsiblePane::Create(parent, id, label, pos, size, style, val, name);}
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m_needParent = true;
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m_acceptsFocus = true;
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m_bIgnoreNextChange = false;
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if (!PreCreation( parent, pos, size ) ||
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!wxControl::CreateBase(parent, id, pos, size, style, val, name))
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{
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wxFAIL_MSG( wxT("wxCollapsiblePane creation failed") );
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return false;
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}
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m_widget = gtk_expander_new(label.c_str());
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// see the gtk_collapsiblepane_expanded_callback comments to understand why we connect
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// to the "notify::expanded" signal instead of the more common "activate" one
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g_signal_connect(m_widget, "notify::expanded",
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G_CALLBACK(gtk_collapsiblepane_expanded_callback), this);
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// before creating m_pPane, we need to makesure our own insert callback will be used
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m_insertCallback = gtk_collapsiblepane_insert_callback;
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// this the real "pane"
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m_pPane = new wxWindow(this, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxNO_BORDER);
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gtk_widget_show( GTK_WIDGET(m_widget) );
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m_parent->DoAddChild( this );
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PostCreation(size);
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//SetBestSize(size);
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// remember the size of this control when it's collapsed
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m_szCollapsed = GetBestSize();
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/*
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myTimer *t = new myTimer(this);
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t->Start(2000);
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*/
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return true;
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}
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wxSize wxCollapsiblePane::DoGetBestSize() const
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{
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if (!gtk_check_version(2,4,0))
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{
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//return wxControl::DoGetBestSize(); // need not to cache the best size!
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wxASSERT_MSG( m_widget, wxT("DoGetBestSize called before creation") );
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GtkRequisition req;
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req.width = 2;
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req.height = 2;
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(* GTK_WIDGET_CLASS( GTK_OBJECT_GET_CLASS(m_widget) )->size_request )
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(m_widget, &req );
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wxSize best(req.width, req.height);
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//CacheBestSize(best);
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return best;
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}
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return wxGenericCollapsiblePane::DoGetBestSize();
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}
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void wxCollapsiblePane::Collapse(bool collapse)
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{
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if (!gtk_check_version(2,4,0))
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{
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// optimization
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if (IsCollapsed() == collapse)
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return;
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// do not send event in next signal handler call
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m_bIgnoreNextChange = true;
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gtk_expander_set_expanded(GTK_EXPANDER(m_widget), !collapse);
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}
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else
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wxGenericCollapsiblePane::Collapse(collapse);
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}
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bool wxCollapsiblePane::IsCollapsed() const
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{
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if (!gtk_check_version(2,4,0))
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return !gtk_expander_get_expanded(GTK_EXPANDER(m_widget));
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return wxGenericCollapsiblePane::IsCollapsed();
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}
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void wxCollapsiblePane::SetLabel(const wxString &str)
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{
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if (!gtk_check_version(2,4,0))
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gtk_expander_set_label(GTK_EXPANDER(m_widget), str.c_str());
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else
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wxGenericCollapsiblePane::SetLabel(str);
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}
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void wxCollapsiblePane::OnSize(wxSizeEvent &ev)
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{
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#if 0 // for debug only
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wxClientDC dc(this);
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dc.SetPen(*wxBLACK_PEN);
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dc.SetBrush(*wxTRANSPARENT_BRUSH);
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dc.DrawRectangle(wxPoint(0,0), GetSize());
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dc.SetPen(*wxRED_PEN);
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dc.DrawRectangle(wxPoint(0,0), GetBestSize());
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#endif
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//wxLogDebug(wxT("wxCollapsiblePane::OnSize"));
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// here we need to resize the pane window otherwise, even if the GtkExpander container
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// is expanded or shrinked, the pane window won't be updated!
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m_pPane->SetSize(ev.GetSize());
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// we need to explicitely call m_pPane->Layout() or else it won't correctly relayout
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// (even if SetAutoLayout(true) has been called on it!)
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m_pPane->Layout();
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}
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#endif // __WXGTK24__
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