src/tilehighlight_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 tilehighlight_type.h Types related to highlighting tiles. */
   9
  10 #ifndef TILEHIGHLIGHT_TYPE_H
  11 #define TILEHIGHLIGHT_TYPE_H
  12
  13 #include "core/geometry_type.hpp"
  14 #include "window_type.h"
  15 #include "tile_type.h"
  16 #include "viewport_type.h"
  17
  18 /** Highlighting draw styles */
  19 enum HighLightStyle {
  20         HT_NONE      = 0x000, ///< default
  21         HT_RECT      = 0x010, ///< rectangle (stations, depots, ...)
  22         HT_POINT     = 0x020, ///< point (lower land, raise land, level land, ...)
  23         HT_SPECIAL   = 0x030, ///< special mode used for highlighting while dragging (and for tunnels/docks)
  24         HT_DRAG      = 0x040, ///< dragging items in the depot windows
  25         HT_LINE      = 0x008, ///< used for autorail highlighting (longer stretches), lower bits: direction
  26         HT_RAIL      = 0x080, ///< autorail (one piece), lower bits: direction
  27         HT_VEHICLE   = 0x100, ///< vehicle is accepted as target as well (bitmask)
  28         HT_DIAGONAL  = 0x200, ///< Also allow 'diagonal rectangles'. Only usable in combination with #HT_RECT or #HT_POINT.
  29         HT_DRAG_MASK = 0x0F8, ///< Mask for the tile drag-type modes.
  30
  31         /* lower bits (used with HT_LINE and HT_RAIL):
  32          * (see ASCII art in table/autorail.h for a visual interpretation) */
  33         HT_DIR_X  = 0,     ///< X direction
  34         HT_DIR_Y  = 1,     ///< Y direction
  35         HT_DIR_HU = 2,     ///< horizontal upper
  36         HT_DIR_HL = 3,     ///< horizontal lower
  37         HT_DIR_VL = 4,     ///< vertical left
  38         HT_DIR_VR = 5,     ///< vertical right
  39         HT_DIR_END,        ///< end marker
  40         HT_DIR_MASK = 0x7, ///< masks the drag-direction
  41 };
  42 DECLARE_ENUM_AS_BIT_SET(HighLightStyle)
  43
  44
  45 /** Metadata about the current highlighting. */
  46 struct TileHighlightData {
  47         Point pos;           ///< Location, in tile "units", of the northern tile of the selected area.
  48         Point size;          ///< Size, in tile "units", of the white/red selection area.
  49         Point offs;          ///< Offset, in tile "units", for the blue coverage area from the selected area's northern tile.
  50         Point outersize;     ///< Size, in tile "units", of the blue coverage area excluding the side of the selected area.
  51         bool diagonal;       ///< Whether the dragged area is a 45 degrees rotated rectangle.
  52
  53         bool freeze;         ///< Freeze highlight in place.
  54
  55         Point new_pos;       ///< New value for \a pos; used to determine whether to redraw the selection.
  56         Point new_size;      ///< New value for \a size; used to determine whether to redraw the selection.
  57         Point new_outersize; ///< New value for \a outersize; used to determine whether to redraw the selection.
  58         byte dirty;          ///< Whether the build station window needs to redraw due to the changed selection.
  59
  60         Point selstart;      ///< The location where the dragging started.
  61         Point selend;        ///< The location where the drag currently ends.
  62         byte sizelimit;      ///< Whether the selection is limited in length, and what the maximum length is.
  63
  64         HighLightStyle drawstyle;      ///< Lower bits 0-3 are reserved for detailed highlight information.
  65         HighLightStyle next_drawstyle; ///< Queued, but not yet drawn style.
  66
  67         HighLightStyle place_mode;     ///< Method which is used to place the selection.
  68         WindowClass window_class;      ///< The \c WindowClass of the window that is responsible for the selection mode.
  69         WindowNumber window_number;    ///< The \c WindowNumber of the window that is responsible for the selection mode.
  70
  71         bool make_square_red;          ///< Whether to give a tile a red selection.
  72         TileIndex redsq;               ///< The tile that has to get a red selection.
  73
  74         ViewportPlaceMethod select_method;            ///< The method which governs how tiles are selected.
  75         ViewportDragDropSelectionProcess select_proc; ///< The procedure that has to be called when the selection is done.
  76
  77         void Reset();
  78
  79         bool IsDraggingDiagonal();
  80         Window *GetCallbackWnd();
  81 };
  82
  83 #endif /* TILEHIGHLIGHT_TYPE_H */