OpenTTD/src/zoom_type.h

61 lines
2.5 KiB
C

/*
* This file is part of OpenTTD.
* OpenTTD 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, version 2.
* OpenTTD 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 OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file zoom_type.h Types related to zooming in and out. */
#ifndef ZOOM_TYPE_H
#define ZOOM_TYPE_H
#include "core/enum_type.hpp"
/** All zoom levels we know. */
enum class ZoomLevel : uint8_t {
/* Our possible zoom-levels */
Begin = 0, ///< Begin for iteration.
Min = Begin, ///< Minimum zoom level.
In4x = Begin, ///< Zoomed 4 times in.
In2x, ///< Zoomed 2 times in.
Normal, ///< The normal zoom level.
Out2x, ///< Zoomed 2 times out.
Out4x, ///< Zoomed 4 times out.
Out8x, ///< Zoomed 8 times out.
Max = Out8x, ///< Maximum zoom level.
End, ///< End for iteration.
/* Here we define in which zoom viewports are */
Viewport = Normal, ///< Default zoom level for viewports.
News = Normal, ///< Default zoom level for the news messages.
Industry = Out2x, ///< Default zoom level for the industry view.
Town = Normal, ///< Default zoom level for the town view.
Aircraft = Normal, ///< Default zoom level for the aircraft view.
Ship = Normal, ///< Default zoom level for the ship view.
Train = Normal, ///< Default zoom level for the train view.
RoadVehicle = Normal, ///< Default zoom level for the road vehicle view.
WorldScreenshot = Normal, ///< Default zoom level for the world screen shot.
Detail = Out2x, ///< All zoom levels below or equal to this will result in details on the screen, like road-work, ...
TextEffect = Out2x, ///< All zoom levels above this will not show text effects.
};
DECLARE_INCREMENT_DECREMENT_OPERATORS(ZoomLevel)
DECLARE_ENUM_AS_SEQUENTIAL(ZoomLevel)
using ZoomLevels = EnumBitSet<ZoomLevel, uint8_t>;
static const uint ZOOM_BASE_SHIFT = to_underlying(ZoomLevel::Normal);
static uint const ZOOM_BASE = 1U << ZOOM_BASE_SHIFT;
extern int _gui_scale;
extern int _gui_scale_cfg;
extern ZoomLevel _gui_zoom;
extern ZoomLevel _font_zoom;
#define ZOOM_LVL_GUI (_gui_zoom)
static const int MIN_INTERFACE_SCALE = 100;
static const int MAX_INTERFACE_SCALE = 500;
#endif /* ZOOM_TYPE_H */