Robin Gareus
6b5dce2c66
We not only need to make sure the iterator remains valid, but also the object pointed to. Valgrind trace: Invalid read of size 8 Gtkmm2ext::Pane::forall_vfunc(int, void (*)(_GtkWidget*, void*), void*) (pane.cc:617) Gtk::Container_Class::forall_vfunc_callback(_GtkContainer*, int, void (*)(_GtkWidget*, void*), void*) gtk_container_destroy (gtkcontainer.c:1073) g_closure_invoke (gclosure.c:804) ... g_object_run_dispose (gobject.c:1084)
135 lines
3.1 KiB
C++
135 lines
3.1 KiB
C++
/*
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Copyright (C) 2016 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef __libgtkmm2ext_pane_h__
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#define __libgtkmm2ext_pane_h__
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#include <vector>
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#include <algorithm>
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#include <boost/shared_ptr.hpp>
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#include <stdint.h>
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#include <gdkmm/cursor.h>
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#include <gtkmm/container.h>
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#include <gtkmm/eventbox.h>
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#include "gtkmm2ext/visibility.h"
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namespace Gtk {
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class Widget;
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}
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namespace Gtkmm2ext {
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class LIBGTKMM2EXT_API Pane : public Gtk::Container
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{
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private:
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class Divider;
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public:
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struct Child
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{
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Pane* pane;
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Gtk::Widget* w;
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int32_t minsize;
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sigc::connection show_con;
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sigc::connection hide_con;
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Child (Pane* p, Gtk::Widget* widget, uint32_t ms) : pane (p), w (widget), minsize (ms) {}
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};
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typedef std::vector<boost::shared_ptr<Child> > Children;
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Pane (bool horizontal);
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~Pane();
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void set_divider (std::vector<float>::size_type divider, float fract);
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float get_divider (std::vector<float>::size_type divider = 0);
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void set_child_minsize (Gtk::Widget const &, int32_t);
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GType child_type_vfunc() const;
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void set_drag_cursor (Gdk::Cursor);
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void set_check_divider_position (bool);
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protected:
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bool horizontal;
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void on_add (Gtk::Widget*);
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void on_remove (Gtk::Widget*);
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void on_size_request (GtkRequisition*);
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void on_size_allocate (Gtk::Allocation&);
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bool on_expose_event (GdkEventExpose*);
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bool handle_press_event (GdkEventButton*, Divider*);
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bool handle_release_event (GdkEventButton*, Divider*);
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bool handle_motion_event (GdkEventMotion*, Divider*);
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bool handle_enter_event (GdkEventCrossing*, Divider*);
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bool handle_leave_event (GdkEventCrossing*, Divider*);
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void forall_vfunc (gboolean include_internals, GtkCallback callback, gpointer callback_data);
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private:
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Gdk::Cursor drag_cursor;
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bool did_move;
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void reallocate (Gtk::Allocation const &);
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Children children;
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struct Divider : public Gtk::EventBox {
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Divider ();
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float fract;
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bool dragging;
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bool on_expose_event (GdkEventExpose* ev);
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};
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typedef std::list<Divider*> Dividers;
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Dividers dividers;
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int divider_width;
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bool check_fract;
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void add_divider ();
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void handle_child_visibility ();
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float constrain_fract (Dividers::size_type, float fract);
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static void* notify_child_destroyed (void*);
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void* child_destroyed (Gtk::Widget*);
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};
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class LIBGTKMM2EXT_API HPane : public Pane
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{
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public:
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HPane () : Pane (true) {}
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};
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class LIBGTKMM2EXT_API VPane : public Pane
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{
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public:
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VPane () : Pane (false) {}
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};
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} /* namespace */
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#endif /* __libgtkmm2ext_pane_h__ */
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