ui/widget/page-sizer.h

	page-sizer.h revision 853a1ae34ba5ce93937efaca3a9c4f8fdbb65a93
/** \file
 * \brief Widget for specifying page size; part of Document Preferences dialog.
 *
 * Author:
 *   Ralf Stephan <ralf@ark.in-berlin.de>
 *
 * Copyright (C) 2005-2006 Authors
 *
 * Released under GNU GPL.  Read the file 'COPYING' for more information.
 */

#ifndef INKSCAPE_UI_WIDGET_PAGE_SIZER__H
#define INKSCAPE_UI_WIDGET_PAGE_SIZER__H

#include <gtkmm.h>
#include <sigc++/sigc++.h>
#include "ui/widget/registry.h"
#include "ui/widget/registered-widget.h"
#include "helper/units.h"


namespace Inkscape {
namespace UI {
namespace Widget {

/**
 * Data class used to store common paper dimensions.  Used to make
 * PageSizer's _paperSizeTable.
 */
class PaperSize
{
public:

    /**
     * Default constructor
     */
    PaperSize()
        { init(); }

    /**
     * Main constructor.  Use this one.
     */
    PaperSize(const Glib::ustring &nameArg,
              double smallerArg,
              double largerArg,
              SPUnitId unitArg)
        {
        name    = nameArg;
        smaller = smallerArg;
        larger  = largerArg;
        unit    = unitArg;
        }

    /**
     * Copy constructor
     */
    PaperSize(const PaperSize &other)
        { assign(other); }

    /**
     * Assignment operator
     */
    PaperSize &operator=(const PaperSize &other)
        { assign(other); return *this; }

    /**
     * Destructor
     */
    virtual ~PaperSize()
        {}

    /**
     * Name of this paper specification
     */
    Glib::ustring name;

    /**
     * The lesser of the two dimensions
     */
    double smaller;

    /**
     * The greater of the two dimensions
     */
    double larger;

    /**
     * The units (px, pt, mm, etc) of this specification
     */
    SPUnitId unit;

private:

    void init()
        {
        name    = "";
        smaller = 0.0;
        larger  = 0.0;
        unit    = SP_UNIT_PX;
        }

    void assign(const PaperSize &other)
        {
        name    = other.name;
        smaller = other.smaller;
        larger  = other.larger;
        unit    = other.unit;
        }

};


/**
 * A compound widget that allows the user to select the desired
 * page size.  This widget is used in DocumentPreferences
 */
class PageSizer : public Gtk::VBox
{
public:

    /**
     * Constructor
     */
    PageSizer();

    /**
     * Destructor
     */
    virtual ~PageSizer();

    /**
     * Set up or reset this widget
     */
    void init (Registry& reg);

    /**
     * Set the page size to the given dimensions.  If 'changeList' is
     * true, then reset the paper size list to the closest match
     */
    void setDim (double w, double h, bool changeList=true);

protected:

    /**
     * Our handy table of all 'standard' paper sizes.
     */
    std::map<Glib::ustring, PaperSize> paperSizeTable;

    /**
     *  Find the closest standard paper size in the table, to the
     */
    int find_paper_size (double w, double h) const;

    void fire_fit_canvas_to_selection_or_drawing();

    //### Dimension spinboxes
    RegisteredUnitMenu   _dimensionUnits;
    RegisteredScalarUnit _dimensionWidth;
    RegisteredScalarUnit _dimensionHeight;
    //callback
    void on_value_changed();
    sigc::connection    _changedw_connection;
    sigc::connection    _changedh_connection;

    //### The Paper Size selection list
    Gtk::ComboBoxText _paperSizeList;
    //callback
    void on_paper_size_list_changed();
    sigc::connection    _paper_size_list_connection;

    //### Button to select 'portrait' orientation
    Gtk::RadioButton    _portraitButton;
    //callback
    void on_portrait();
    sigc::connection    _portrait_connection;

    //### Button to select 'landscape' orientation
    Gtk::RadioButton    _landscapeButton;
    //callback
    void on_landscape();
    sigc::connection    _landscape_connection;

    Registry            *_widgetRegistry;

    //### state - whether we are currently landscape or portrait
    bool                 _landscape;

};

} // namespace Widget
} // namespace UI
} // namespace Inkscape


#endif /* INKSCAPE_UI_WIDGET_PAGE_SIZER__H */

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