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/* $Id$ */
/** @file viewport.h */
#ifndef VIEWPORT_H
#define VIEWPORT_H
#include "zoom_type.h"
#include "window_type.h"
#include "vehicle_type.h"
#include "gfx_func.h"
#include "gui.h"
struct ViewPort {
int left,top; // screen coordinates for the viewport
int width, height; // screen width/height for the viewport
int virtual_left, virtual_top; // virtual coordinates
int virtual_width, virtual_height; // these are just width << zoom, height << zoom
ZoomLevel zoom;
};
void SetSelectionRed(bool);
/* viewport.cpp */
void InitViewports();
void DeleteWindowViewport(Window *w);
void AssignWindowViewport(Window *w, int x, int y,
int width, int height, uint32 follow_flags, ZoomLevel zoom);
ViewPort *IsPtInWindowViewport(const Window *w, int x, int y);
Point GetTileBelowCursor();
void UpdateViewportPosition(Window *w);
enum {
ZOOM_IN = 0,
ZOOM_OUT = 1,
ZOOM_NONE = 2, // hack, used to update the button status
};
bool DoZoomInOutWindow(int how, Window *w);
void ZoomInOrOutToCursorWindow(bool in, Window * w);
Point GetTileZoomCenterWindow(bool in, Window * w);
void HandleZoomMessage(Window *w, const ViewPort *vp, byte widget_zoom_in, byte widget_zoom_out);
static inline void MaxZoomInOut(int how, Window *w)
{
while (DoZoomInOutWindow(how, w)) {};
}
/**
* Some values for constructing bounding boxes (BB). The Z positions under bridges are:
* z=0..5 Everything that can be built under low bridges.
* z=6 reserved, currently unused.
* z=7 Z separator between bridge/tunnel and the things under/above it.
*/
enum {
BB_HEIGHT_UNDER_BRIDGE = 6, ///< Everything that can be built under low bridges, must not exceed this Z height.
BB_Z_SEPARATOR = 7, ///< Separates the bridge/tunnel from the things under/above it.
};
void OffsetGroundSprite(int x, int y);
void DrawGroundSprite(SpriteID image, SpriteID pal, const SubSprite *sub = NULL);
void DrawGroundSpriteAt(SpriteID image, SpriteID pal, int32 x, int32 y, byte z, const SubSprite *sub = NULL);
void AddSortableSpriteToDraw(SpriteID image, SpriteID pal, int x, int y, int w, int h, int dz, int z, bool transparent = false, int bb_offset_x = 0, int bb_offset_y = 0, int bb_offset_z = 0, const SubSprite *sub = NULL);
void *AddStringToDraw(int x, int y, StringID string, uint64 params_1, uint64 params_2);
void AddChildSpriteScreen(SpriteID image, SpriteID pal, int x, int y, bool transparent = false, const SubSprite *sub = NULL);
void StartSpriteCombine();
void EndSpriteCombine();
void HandleViewportClicked(const ViewPort *vp, int x, int y);
void PlaceObject();
void SetRedErrorSquare(TileIndex tile);
void SetTileSelectSize(int w, int h);
void SetTileSelectBigSize(int ox, int oy, int sx, int sy);
Vehicle *CheckMouseOverVehicle();
/** Viewport place method (type of highlighted area and placed objects) */
enum ViewportPlaceMethod {
VPM_X_OR_Y = 0, ///< drag in X or Y direction
VPM_FIX_X = 1, ///< drag only in X axis
VPM_FIX_Y = 2, ///< drag only in Y axis
VPM_RAILDIRS = 3, ///< all rail directions
VPM_X_AND_Y = 4, ///< area of land in X and Y directions
VPM_X_AND_Y_LIMITED = 5, ///< area of land of limited size
VPM_SIGNALDIRS = 6, ///< similiar to VMP_RAILDIRS, but with different cursor
};
/** Viewport highlight mode (for highlighting tiles below cursor) */
enum ViewportHighlightMode {
VHM_NONE = 0, ///< default
VHM_RECT = 1, ///< rectangle (stations, depots, ...)
VHM_POINT = 2, ///< point (lower land, raise land, level land, ...)
VHM_SPECIAL = 3, ///< special mode used for highlighting while dragging (and for tunnels/docks)
VHM_DRAG = 4, ///< dragging items in the depot windows
VHM_RAIL = 5, ///< rail pieces
};
void VpSelectTilesWithMethod(int x, int y, ViewportPlaceMethod method);
void VpStartPlaceSizing(TileIndex tile, ViewportPlaceMethod method, byte process);
void VpSetPresizeRange(uint from, uint to);
void VpSetPlaceSizingLimit(int limit);
/* highlighting draw styles */
typedef byte HighLightStyle;
enum HighLightStyles {
HT_NONE = 0x00,
HT_RECT = 0x80,
HT_POINT = 0x40,
HT_LINE = 0x20, ///< used for autorail highlighting (longer streches)
///< (uses lower bits to indicate direction)
HT_RAIL = 0x10, ///< autorail (one piece)
///< (uses lower bits to indicate direction)
HT_DRAG_MASK = 0xF0, ///< masks the drag-type
/* lower bits (used with HT_LINE and HT_RAIL):
* (see ASCII art in autorail.h for a visual interpretation) */
HT_DIR_X = 0, ///< X direction
HT_DIR_Y = 1, ///< Y direction
HT_DIR_HU = 2, ///< horizontal upper
HT_DIR_HL = 3, ///< horizontal lower
HT_DIR_VL = 4, ///< vertical left
HT_DIR_VR = 5, ///< vertical right
HT_DIR_MASK = 0x7 ///< masks the drag-direction
};
struct TileHighlightData {
Point size;
Point outersize;
Point pos;
Point offs;
Point new_pos;
Point new_size;
Point new_outersize;
Point selend, selstart;
byte dirty;
byte sizelimit;
byte drawstyle; // lower bits 0-3 are reserved for detailed highlight information information
byte new_drawstyle; // only used in UpdateTileSelection() to as a buffer to compare if there was a change between old and new
byte next_drawstyle; // queued, but not yet drawn style
ViewportHighlightMode place_mode;
bool make_square_red;
WindowClass window_class;
WindowNumber window_number;
ViewportPlaceMethod select_method;
byte select_proc;
TileIndex redsq;
};
/* common button handler */
bool HandlePlacePushButton(Window *w, int widget, CursorID cursor, ViewportHighlightMode mode, PlaceProc *placeproc);
VARDEF Point _tile_fract_coords;
extern TileHighlightData _thd;
void ViewportDoDraw(const ViewPort *vp, int left, int top, int right, int bottom);
void SetObjectToPlaceWnd(CursorID icon, SpriteID pal, ViewportHighlightMode mode, Window *w);
void SetObjectToPlace(CursorID icon, SpriteID pal, ViewportHighlightMode mode, WindowClass window_class, WindowNumber window_num);
void ResetObjectToPlace();
bool ScrollWindowTo(int x, int y, Window *w, bool instant = false);
bool ScrollMainWindowToTile(TileIndex tile, bool instant = false);
bool ScrollMainWindowTo(int x, int y, bool instant = false);
#endif /* VIEWPORT_H */
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