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/* $Id$ */
#ifndef VIEWPORT_H
#define VIEWPORT_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
byte zoom;
};
void SetSelectionRed(bool);
/* viewport.c */
void AssignWindowViewport(Window *w, int x, int y,
int width, int height, uint32 follow_flags, byte zoom);
void SetViewportPosition(Window *w, int x, int y);
ViewPort *IsPtInWindowViewport(const Window *w, int x, int y);
Point GetTileBelowCursor(void);
void ZoomInOrOutToCursorWindow(bool in, Window * w);
Point GetTileZoomCenterWindow(bool in, Window * w);
void UpdateViewportPosition(Window *w);
void OffsetGroundSprite(int x, int y);
void DrawGroundSprite(uint32 image);
void DrawGroundSpriteAt(uint32 image, int32 x, int32 y, byte z);
void AddSortableSpriteToDraw(uint32 image, int x, int y, int w, int h, byte dz, byte z);
void *AddStringToDraw(int x, int y, StringID string, uint32 params_1, uint32 params_2, uint32 params_3);
void AddChildSpriteScreen(uint32 image, int x, int y);
void StartSpriteCombine(void);
void EndSpriteCombine(void);
void HandleViewportClicked(const ViewPort *vp, int x, int y);
void PlaceObject(void);
void SetRedErrorSquare(TileIndex tile);
void SetTileSelectSize(int w, int h);
void SetTileSelectBigSize(int ox, int oy, int sx, int sy);
void VpStartPlaceSizing(TileIndex tile, int user);
void VpStartPreSizing(void);
void VpSetPresizeRange(uint from, uint to);
void VpSetPlaceSizingLimit(int limit);
Vehicle *CheckMouseOverVehicle(void);
enum {
VPM_X_OR_Y = 0,
VPM_FIX_X = 1,
VPM_FIX_Y = 2,
VPM_RAILDIRS = 3,
VPM_X_AND_Y = 4,
VPM_X_AND_Y_LIMITED = 5,
VPM_SIGNALDIRS = 6
};
// viewport highlight mode (for highlighting tiles below cursor)
enum {
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, int method);
// highlighting draw styles
enum {
HT_NONE = 0,
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) */
/* 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
};
typedef 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
byte place_mode;
bool make_square_red;
WindowClass window_class;
WindowNumber window_number;
int userdata;
TileIndex redsq;
} TileHighlightData;
// common button handler
bool HandlePlacePushButton(Window *w, int widget, uint32 cursor, int mode, PlaceProc *placeproc);
/* viewport.c */
// XXX - maximum viewports is maximum windows - 2 (main toolbar + status bar)
VARDEF ViewPort _viewports[25 - 2];
VARDEF uint32 _active_viewports;
VARDEF Point _tile_fract_coords;
extern TileHighlightData _thd;
void ViewportDoDraw(const ViewPort *vp, int left, int top, int right, int bottom);
#endif /* VIEWPORT_H */
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