kicad/include/widgets/indicator_icon.h

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2017-2021 KiCad Developers, see AUTHORS.txt for contributors.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, you may find one here:
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
* or you may search the http://www.gnu.org website for the version 2 license,
* or you may write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#ifndef ROW_INDICATOR__H_
#define ROW_INDICATOR__H_
#include <wx/statbmp.h>
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#include <wx/panel.h>
class wxStaticBitmap;
/**
* representing a row indicator icon for use in
* places like the layer widget
*/
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class INDICATOR_ICON : public wxPanel
{
public:
/**
* An id that refers to a certain icon state.
*
* Exactly what that state might mean in terms of icons is up
* to the icon provider.
*/
using ICON_ID = int;
/**
* A simple object that can provide fixed bitmaps for use as row
* indicators
*/
class ICON_PROVIDER
{
public:
virtual ~ICON_PROVIDER() {};
/**
* Get a reference to the row icon in the given mode.
*
* @param aIconId the id of the icon to get (depends on the
* provider).
*/
virtual const wxBitmap& GetIndicatorIcon( ICON_ID aIconId ) const = 0;
};
/**
* Accessor for the default icon providers, which take
* true and false for IDs, meaning on/off.
*
* @param aAlternative false for blue arrow/blank, true for the
* green diamond
*/
static ICON_PROVIDER& GetDefaultRowIconProvider( bool aAlternative );
/**
* @param aParent the owning window
* @param aIconProvider the icon provider to get icons from
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* @param aInitialIcon is the initial state of the icon (the meaning
* depends on what is the purpose of the icon)
* @param aID the ID to use for the widgets - events will have
* this ID.
*/
INDICATOR_ICON( wxWindow* aParent, ICON_PROVIDER& aIconProvider,
ICON_ID aInitialIcon, int aID );
/**
* Set the row indicator to the given state.
*
* @param aIconId the icon ID to pass to the provider.
*/
void SetIndicatorState( ICON_ID aIconId );
/**
* @return the current state of the indicator
*/
ICON_ID GetIndicatorState() const;
/**
* Updates the window ID of this control and its children
* @param aId new Window ID to set
*/
void SetWindowID( wxWindowID aId )
{
SetId( aId );
m_bitmap->SetId( aId );
}
private:
///< An class that delivers icons for the indicator (currently just
///< uses a default implementation).
ICON_PROVIDER& m_iconProvider;
///< Handle on the bitmap widget
wxStaticBitmap* m_bitmap;
///< Is the icon currently "on"
ICON_ID m_currentId;
};
/**
* Icon provider for the "standard" row indicators, for example in layer selection lists
*/
class ROW_ICON_PROVIDER: public INDICATOR_ICON::ICON_PROVIDER
{
public:
///< State constants to select the right icons
enum STATE
{
OFF, ///< Row "off" or "deselected"
DIMMED, ///< Row "dimmed"
ON, ///< Row "on" or "selected"
UP, ///< Row above design alpha
DOWN, ///< Row below design alpha
};
/**
* @param aAlt false: normal icons (blue arrow/blank), true:
* alternative icons (blue arrow/green diamond)
*/
ROW_ICON_PROVIDER( int aSize );
///< @copydoc INDICATOR_ICON::ICON_PROVIDER::GetIndicatorIcon()
const wxBitmap& GetIndicatorIcon( INDICATOR_ICON::ICON_ID aIconId ) const override;
private:
wxBitmap m_blankBitmap;
wxBitmap m_rightArrowBitmap;
wxBitmap m_upArrowBitmap;
wxBitmap m_downArrowBitmap;
wxBitmap m_dotBitmap;
};
#endif // ROW_INDICATOR__H_