src/zoom_type.h

   1 /*
   2  * This file is part of OpenTTD.
   3  * 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.
   4  * 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.
   5  * 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/>.
   6  */
   7
   8 /** @file zoom_type.h Types related to zooming in and out. */
   9
  10 #ifndef ZOOM_TYPE_H
  11 #define ZOOM_TYPE_H
  12
  13 #include "core/enum_type.hpp"
  14
  15 /** All zoom levels we know. */
  16 enum ZoomLevel : uint8_t {
  17         /* Our possible zoom-levels */
  18         ZOOM_LVL_BEGIN  = 0, ///< Begin for iteration.
  19         ZOOM_LVL_IN_4X  = 0, ///< Zoomed 4 times in.
  20         ZOOM_LVL_IN_2X,      ///< Zoomed 2 times in.
  21         ZOOM_LVL_NORMAL,     ///< The normal zoom level.
  22         ZOOM_LVL_OUT_2X,     ///< Zoomed 2 times out.
  23         ZOOM_LVL_OUT_4X,     ///< Zoomed 4 times out.
  24         ZOOM_LVL_OUT_8X,     ///< Zoomed 8 times out.
  25         ZOOM_LVL_END,        ///< End for iteration.
  26
  27         /* Here we define in which zoom viewports are */
  28         ZOOM_LVL_VIEWPORT = ZOOM_LVL_NORMAL, ///< Default zoom level for viewports.
  29         ZOOM_LVL_NEWS     = ZOOM_LVL_NORMAL, ///< Default zoom level for the news messages.
  30         ZOOM_LVL_INDUSTRY = ZOOM_LVL_OUT_2X, ///< Default zoom level for the industry view.
  31         ZOOM_LVL_TOWN     = ZOOM_LVL_NORMAL, ///< Default zoom level for the town view.
  32         ZOOM_LVL_AIRCRAFT = ZOOM_LVL_NORMAL, ///< Default zoom level for the aircraft view.
  33         ZOOM_LVL_SHIP     = ZOOM_LVL_NORMAL, ///< Default zoom level for the ship view.
  34         ZOOM_LVL_TRAIN    = ZOOM_LVL_NORMAL, ///< Default zoom level for the train view.
  35         ZOOM_LVL_ROADVEH  = ZOOM_LVL_NORMAL, ///< Default zoom level for the road vehicle view.
  36         ZOOM_LVL_WORLD_SCREENSHOT = ZOOM_LVL_NORMAL, ///< Default zoom level for the world screen shot.
  37
  38         ZOOM_LVL_DETAIL = ZOOM_LVL_OUT_2X, ///< All zoom levels below or equal to this will result in details on the screen, like road-work, ...
  39         ZOOM_LVL_TEXT_EFFECT = ZOOM_LVL_OUT_2X, ///< All zoom levels above this will not show text effects.
  40
  41         ZOOM_LVL_MIN      = ZOOM_LVL_IN_4X, ///< Minimum zoom level.
  42         ZOOM_LVL_MAX      = ZOOM_LVL_OUT_8X, ///< Maximum zoom level.
  43 };
  44 DECLARE_POSTFIX_INCREMENT(ZoomLevel)
  45 DECLARE_ENUM_AS_ADDABLE(ZoomLevel)
  46
  47 static uint const ZOOM_BASE_SHIFT = static_cast<uint>(ZOOM_LVL_NORMAL);
  48 static uint const ZOOM_BASE = 1U << ZOOM_BASE_SHIFT;
  49
  50 extern int _gui_scale;
  51 extern int _gui_scale_cfg;
  52
  53 extern ZoomLevel _gui_zoom;
  54 extern ZoomLevel _font_zoom;
  55 #define ZOOM_LVL_GUI (_gui_zoom)
  56
  57 static const int MIN_INTERFACE_SCALE = 100;
  58 static const int MAX_INTERFACE_SCALE = 500;
  59
  60 #endif /* ZOOM_TYPE_H */