overview_common.c File Reference

#include <math.h>
#include "log.h"
#include "client_main.h"
#include "climap.h"
#include "control.h"
#include "mapview_g.h"
#include "options.h"
#include "zoom.h"
#include "overview_common.h"

Go to the source code of this file.

Functions
static void	gui_to_natural_pos (const struct tileset *t, double *ntl_x, double *ntl_y, int gui_x, int gui_y)
static void	gui_to_overview_pos (const struct tileset *t, int *ovr_x, int *ovr_y, int gui_x, int gui_y)
static struct color *	overview_tile_color (struct tile *ptile)
void	refresh_overview_from_canvas (void)
static void	redraw_overview (void)
static void	dirty_overview (void)
void	flush_dirty_overview (void)
static double	wrap_double (double value, double wrap)
void	center_tile_overviewcanvas (void)
void	map_to_overview_pos (int *overview_x, int *overview_y, int map_x, int map_y)
void	overview_to_map_pos (int *map_x, int *map_y, int overview_x, int overview_y)
void	refresh_overview_canvas (void)
static void	put_overview_tile_area (struct canvas *pcanvas, struct tile *ptile, int x, int y, int w, int h)
void	overview_update_tile (struct tile *ptile)
void	calculate_overview_dimensions (void)
void	overview_free (void)
void	overview_redraw_callback (struct option *option)

Variables
int	OVERVIEW_TILE_SIZE = 2
static bool	overview_dirty = FALSE

Function Documentation

calculate_overview_dimensions()

void calculate_overview_dimensions

(

void

)

Called if the map size is know or changes.

Definition at line 448 of file overview_common.c.

Referenced by handle_map_info().

center_tile_overviewcanvas()

void center_tile_overviewcanvas

(

void

)

Center the overview around the mapview.

Definition at line 287 of file overview_common.c.

Referenced by base_set_mapview_origin(), and map_canvas_resized().

dirty_overview()

static void dirty_overview ( void  )

static

Mark the overview as "dirty" so that it will be redrawn soon.

Definition at line 253 of file overview_common.c.

Referenced by overview_update_tile().

flush_dirty_overview()

void flush_dirty_overview

(

void

)

Redraw the overview if it is "dirty".

Definition at line 261 of file overview_common.c.

Referenced by unqueue_mapview_updates().

gui_to_natural_pos()

static void gui_to_natural_pos ( const struct tileset *  t, double *  ntl_x, double *  ntl_y, int  gui_x, int  gui_y  )

static

Translate from gui to natural coordinate systems. This provides natural coordinates as a floating-point value so there is no loss of information in the resulting values.

Definition at line 56 of file overview_common.c.

Referenced by center_tile_overviewcanvas(), and gui_to_overview_pos().

gui_to_overview_pos()

static void gui_to_overview_pos ( const struct tileset *  t, int *  ovr_x, int *  ovr_y, int  gui_x, int  gui_y  )

static

Translate from gui to overview coordinate systems.

Definition at line 85 of file overview_common.c.

Referenced by center_tile_overviewcanvas(), and redraw_overview().

map_to_overview_pos()

void map_to_overview_pos	(	int *	overview_x,
		int *	overview_y,
		int	map_x,
		int	map_y
	)

Finds the overview (canvas) coordinates for a given map position.

Definition at line 322 of file overview_common.c.

overview_free()

void overview_free

(

void

)

Free overview resources.

Definition at line 509 of file overview_common.c.

Referenced by client_exit().

overview_redraw_callback()

void overview_redraw_callback

(

struct option *

option

)

Callback to be called when an overview option is changed.

Definition at line 522 of file overview_common.c.

overview_tile_color()

static struct color * overview_tile_color ( struct tile *  ptile )

static

Return color for overview map tile.

Definition at line 118 of file overview_common.c.

Referenced by put_overview_tile_area().

overview_to_map_pos()

void overview_to_map_pos	(	int *	map_x,
		int *	map_y,
		int	overview_x,
		int	overview_y
	)

Finds the map coordinates for a given overview (canvas) position.

Definition at line 356 of file overview_common.c.

Referenced by butt_down_overviewcanvas(), left_butt_down_overviewcanvas(), minimap_window_callback(), minimap_view::mousePressEvent(), overview_update_line(), and right_butt_down_overviewcanvas().

overview_update_tile()

void overview_update_tile

(

struct tile *

ptile

)

Redraw the given map position in the overview canvas.

Definition at line 409 of file overview_common.c.

Referenced by refresh_overview_canvas(), and unqueue_mapview_updates().

put_overview_tile_area()

static void put_overview_tile_area ( struct canvas *  pcanvas, struct tile *  ptile, int  x, int  y, int  w, int  h  )

static

Draws the color for this tile onto the given rectangle of the canvas.

This is just a simple helper function for overview_update_tile, since sometimes a tile may cover more than one rectangle.

Definition at line 392 of file overview_common.c.

Referenced by overview_update_tile().

redraw_overview()

static void redraw_overview ( void  )

static

Copies the overview image from the backing store to the window and draws the viewrect on top of it.

Definition at line 201 of file overview_common.c.

Referenced by center_tile_overviewcanvas(), flush_dirty_overview(), and refresh_overview_canvas().

refresh_overview_canvas()

void refresh_overview_canvas

(

void

)

Redraw the entire backing store for the overview minimap.

Definition at line 375 of file overview_common.c.

Referenced by calculate_overview_dimensions(), overview_redraw_callback(), request_toggle_fog_of_war(), set_client_state(), and unqueue_mapview_updates().

refresh_overview_from_canvas()

void refresh_overview_from_canvas

(

void

)

Copies the current centred image + viewrect unchanged to the client's overview window (for expose events etc).

Definition at line 185 of file overview_common.c.

Referenced by redraw_overview().

wrap_double()

static double wrap_double ( double  value, double  wrap  )

static

Equivalent to FC_WRAP, but it works for doubles.

Definition at line 273 of file overview_common.c.

Referenced by center_tile_overviewcanvas().

Variable Documentation

overview_dirty

bool overview_dirty = FALSE

static

Definition at line 49 of file overview_common.c.

Referenced by dirty_overview(), flush_dirty_overview(), and redraw_overview().

OVERVIEW_TILE_SIZE

int OVERVIEW_TILE_SIZE = 2

Definition at line 33 of file overview_common.c.

Referenced by calculate_overview_dimensions(), get_overview_area_dimensions(), gui_to_overview(), gui_to_overview_pos(), map_to_overview_pos(), overview_to_map_pos(), overview_update_tile(), and redraw_overview().