Freeciv-3.3
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Data Structures | Macros | Enumerations | Functions | Variables
mapview_common.c File Reference
#include "fcintl.h"
#include "log.h"
#include "rand.h"
#include "support.h"
#include "timing.h"
#include "featured_text.h"
#include "game.h"
#include "map.h"
#include "traderoutes.h"
#include "unitlist.h"
#include "graphics_g.h"
#include "gui_main_g.h"
#include "mapctrl_g.h"
#include "mapview_g.h"
#include "client_main.h"
#include "climap.h"
#include "control.h"
#include "editor.h"
#include "goto.h"
#include "citydlg_common.h"
#include "overview_common.h"
#include "svgflag.h"
#include "tilespec.h"
#include "zoom.h"
#include "mapview_common.h"
#include "spechash.h"
#include "speclist.h"

Go to the source code of this file.

Data Structures

struct  gotoline_counter
 
struct  trade_route_line
 
struct  animation
 
struct  link_mark
 

Macros

#define SPECHASH_TAG   gotoline
 
#define SPECHASH_IKEY_TYPE   struct tile *
 
#define SPECHASH_IDATA_TYPE   struct gotoline_counter *
 
#define SPECHASH_IDATA_FREE   gotoline_counter_destroy
 
#define gotoline_hash_iterate(hash, ptile, pglc)
 
#define gotoline_hash_iterate_end   HASH_ITERATE_END
 
#define SPECLIST_TAG   animation
 
#define SPECLIST_TYPE   struct animation
 
#define NUM_CITY_COLORS   tileset_num_city_colors(tileset)
 
#define COLOR_MAPVIEW_TILELABEL   COLOR_MAPVIEW_CITYTEXT
 
#define SPECLIST_TAG   link_mark
 
#define SPECLIST_TYPE   struct link_mark
 
#define link_marks_iterate(pmark)    TYPED_LIST_ITERATE(struct link_mark, link_marks, pmark)
 
#define link_marks_iterate_end   LIST_ITERATE_END
 

Enumerations

enum  update_type { UPDATE_NONE = 0 , UPDATE_CITY_DESCRIPTIONS = 1 , UPDATE_MAP_CANVAS_VISIBLE = 2 , UPDATE_TILE_LABELS = 4 }
 
enum  tile_update_type {
  TILE_UPDATE_TILE_SINGLE , TILE_UPDATE_TILE_FULL , TILE_UPDATE_UNIT , TILE_UPDATE_CITY_DESC ,
  TILE_UPDATE_CITYMAP , TILE_UPDATE_TILE_LABEL , TILE_UPDATE_COUNT
}
 
enum  animation_type { ANIM_MOVEMENT , ANIM_BATTLE , ANIM_EXPL , ANIM_NUKE }
 

Functions

static struct gotoline_countergotoline_counter_new (void)
 
static void gotoline_counter_destroy (struct gotoline_counter *pglc)
 
static void base_canvas_to_map_pos (float zoom, int *map_x, int *map_y, float canvas_x, float canvas_y)
 
static void show_full_citybar (struct canvas *pcanvas, const int canvas_x0, const int canvas_y0, struct city *pcity, int *width, int *height) fc__attribute((nonnull(5
 
static void static void show_city_desc (struct canvas *pcanvas, int canvas_x, int canvas_y, struct city *pcity, int *width, int *height) fc__attribute((nonnull(5
 
static void queue_mapview_update (enum update_type update)
 
static void queue_mapview_tile_update (struct tile *ptile, enum tile_update_type type)
 
void animations_init (void)
 
void animations_free (void)
 
static void anim_timer_renew (void)
 
static void animation_add (struct animation *anim)
 
static bool movement_animation (struct animation *anim, double time_gone)
 
static bool battle_animation (struct animation *anim, double time_gone)
 
static bool explosion_animation (struct animation *anim, double time_gone)
 
static bool nuke_animation (struct animation *anim, double time_gone)
 
void update_animation (void)
 
void refresh_tile_mapcanvas (struct tile *ptile, bool full_refresh, bool write_to_screen)
 
void refresh_unit_mapcanvas (struct unit *punit, struct tile *ptile, bool full_refresh, bool write_to_screen)
 
void refresh_city_mapcanvas (struct city *pcity, struct tile *ptile, bool full_refresh, bool write_to_screen)
 
void map_to_gui_vector (const struct tileset *t, float zoom, float *gui_dx, float *gui_dy, int map_dx, int map_dy)
 
static void map_to_gui_pos (const struct tileset *t, float zoom, float *gui_x, float *gui_y, int map_x, int map_y)
 
static void gui_to_map_pos (const struct tileset *t, float zoom, int *map_x, int *map_y, float gui_x, float gui_y)
 
bool tile_to_canvas_pos (float *canvas_x, float *canvas_y, float zoom, const struct tile *ptile)
 
struct tilecanvas_pos_to_tile (float canvas_x, float canvas_y, float zoom)
 
struct tilecanvas_pos_to_nearest_tile (float canvas_x, float canvas_y, float zoom)
 
static void normalize_gui_pos (const struct tileset *t, float zoom, float *gui_x, float *gui_y)
 
static void gui_distance_vector (const struct tileset *t, float zoom, float *gui_dx, float *gui_dy, float gui_x0, float gui_y0, float gui_x1, float gui_y1)
 
static void base_set_mapview_origin (float gui_x0, float gui_y0, float zoom)
 
static bool calc_mapview_origin (float *gui_x0, float *gui_y0, float zoom)
 
void set_mapview_origin (float gui_x0, float gui_y0, float zoom)
 
void get_mapview_scroll_window (float *xmin, float *ymin, float *xmax, float *ymax, int *xsize, int *ysize)
 
void get_mapview_scroll_step (int *xstep, int *ystep)
 
void get_mapview_scroll_pos (int *scroll_x, int *scroll_y)
 
void set_mapview_scroll_pos (int scroll_x, int scroll_y, float zoom)
 
struct tileget_center_tile_mapcanvas (void)
 
void center_tile_mapcanvas (const struct tile *ptile)
 
bool tile_visible_mapcanvas (struct tile *ptile)
 
bool tile_visible_and_not_on_border_mapcanvas (struct tile *ptile)
 
void put_drawn_sprites (struct canvas *pcanvas, float zoom, int canvas_x, int canvas_y, int count, struct drawn_sprite *pdrawn, bool fog)
 
void put_one_element (struct canvas *pcanvas, float zoom, enum mapview_layer layer, const struct tile *ptile, const struct tile_edge *pedge, const struct tile_corner *pcorner, const struct unit *punit, const struct city *pcity, int canvas_x, int canvas_y, const struct city *citymode, const struct unit_type *putype)
 
void put_unit (const struct unit *punit, struct canvas *pcanvas, float zoom, int canvas_x, int canvas_y)
 
void put_unittype (const struct unit_type *putype, struct canvas *pcanvas, float zoom, int canvas_x, int canvas_y)
 
void put_city (struct city *pcity, struct canvas *pcanvas, float zoom, int canvas_x, int canvas_y)
 
void put_terrain (struct tile *ptile, struct canvas *pcanvas, float zoom, int canvas_x, int canvas_y)
 
void put_unit_city_overlays (struct unit *punit, struct canvas *pcanvas, int canvas_x, int canvas_y, int *upkeep_cost, int happy_cost)
 
void toggle_city_color (struct city *pcity)
 
void toggle_unit_color (struct unit *punit)
 
void put_nuke_mushroom_pixmaps (struct tile *ptile)
 
static void put_one_tile (struct canvas *pcanvas, enum mapview_layer layer, struct tile *ptile, int canvas_x, int canvas_y, const struct city *citymode)
 
static int trade_route_to_canvas_lines (const struct tile *ptile1, const struct tile *ptile2, struct trade_route_line *lines)
 
static void draw_trade_route_line (const struct tile *ptile1, const struct tile *ptile2, enum color_std color)
 
static void draw_trade_routes_for_city (const struct city *pcity_src)
 
static void draw_trade_routes (void)
 
void update_map_canvas (int canvas_x, int canvas_y, int width, int height)
 
void update_map_canvas_visible (void)
 
void update_city_description (struct city *pcity)
 
void update_tile_label (struct tile *ptile)
 
static void show_small_citybar (struct canvas *pcanvas, int canvas_x, int canvas_y, struct city *pcity, int *width, int *height)
 
static void show_tile_label (struct canvas *pcanvas, int canvas_x, int canvas_y, struct tile *ptile, int *width, int *height)
 
void show_city_descriptions (int canvas_base_x, int canvas_base_y, int width_base, int height_base)
 
void show_tile_labels (int canvas_base_x, int canvas_base_y, int width_base, int height_base)
 
void draw_segment (struct tile *src_tile, enum direction8 dir)
 
void decrease_unit_hp_smooth (struct unit *punit0, int hp0, struct unit *punit1, int hp1)
 
void move_unit_map_canvas (struct unit *punit, struct tile *src_tile, int dx, int dy)
 
struct cityfind_city_or_settler_near_tile (const struct tile *ptile, struct unit **punit)
 
struct cityfind_city_near_tile (const struct tile *ptile)
 
static void append_city_buycost_string (const struct city *pcity, char *buffer, int buffer_len)
 
void get_city_mapview_production (struct city *pcity, char *buffer, size_t buffer_len)
 
void get_city_mapview_trade_routes (struct city *pcity, char *trade_routes_buffer, size_t trade_routes_buffer_len, enum color_std *pcolor)
 
static void queue_callback (void *data)
 
static void queue_add_callback (void)
 
void unqueue_mapview_updates (bool write_to_screen)
 
void get_city_mapview_name_and_growth (struct city *pcity, char *name_buffer, size_t name_buffer_len, char *growth_buffer, size_t growth_buffer_len, enum color_std *growth_color, enum color_std *production_color)
 
static bool can_do_cached_drawing (void)
 
void mapdeco_init (void)
 
void mapdeco_free (void)
 
void mapdeco_set_highlight (const struct tile *ptile, bool highlight)
 
bool mapdeco_is_highlight_set (const struct tile *ptile)
 
void mapdeco_clear_highlights (void)
 
void mapdeco_set_crosshair (const struct tile *ptile, bool crosshair)
 
bool mapdeco_is_crosshair_set (const struct tile *ptile)
 
void mapdeco_clear_crosshairs (void)
 
void mapdeco_add_gotoline (const struct tile *ptile, enum direction8 dir)
 
void mapdeco_remove_gotoline (const struct tile *ptile, enum direction8 dir)
 
void mapdeco_set_gotoroute (const struct unit *punit)
 
bool mapdeco_is_gotoline_set (const struct tile *ptile, enum direction8 dir)
 
void mapdeco_clear_gotoroutes (void)
 
bool map_canvas_resized (int width, int height)
 
void init_mapcanvas_and_overview (void)
 
void free_mapcanvas_and_overview (void)
 
void get_spaceship_dimensions (int *width, int *height)
 
void put_spaceship (struct canvas *pcanvas, int canvas_x, int canvas_y, const struct player *pplayer)
 
static struct link_marklink_mark_find (enum text_link_type type, int id)
 
static struct link_marklink_mark_new (enum text_link_type type, int id, int turns)
 
static void link_mark_destroy (struct link_mark *pmark)
 
static struct tilelink_mark_tile (const struct link_mark *pmark)
 
static struct colorlink_mark_color (const struct link_mark *pmark)
 
static void link_mark_draw (const struct link_mark *pmark)
 
void link_marks_init (void)
 
void link_marks_free (void)
 
void link_marks_draw_all (void)
 
void link_marks_clear_all (void)
 
void link_marks_decrease_turn_counters (void)
 
void link_mark_add_new (enum text_link_type type, int id)
 
void link_mark_restore (enum text_link_type type, int id)
 
enum topo_comp_lvl tileset_map_topo_compatible (int topology_id, struct tileset *tset, int *tset_topo)
 
const chardescribe_topology (int topo)
 
void set_frame_by_frame_animation (void)
 
struct tileclient_infratile (void)
 
void client_infratile_set (struct tile *ptile)
 

Variables

struct tile_hash * mapdeco_highlight_table
 
struct tile_hash * mapdeco_crosshair_table
 
struct gotoline_hashmapdeco_gotoline_table
 
struct view mapview
 
bool can_slide = TRUE
 
static bool frame_by_frame_animation = FALSE
 
const struct tilecenter_tile = NULL
 
struct tileinfratile = NULL
 
static const int MAX_TRADE_ROUTE_DRAW_LINES = 2
 
static struct timeranim_timer = NULL
 
struct animation_listanimations = NULL
 
static int color_index = 0
 
static int max_desc_width = 0
 
static int max_desc_height = 0
 
static int max_label_width = 0
 
static int max_label_height = 0
 
static enum update_type needed_updates = UPDATE_NONE
 
static bool callback_queued = FALSE
 
struct tile_listtile_updates [TILE_UPDATE_COUNT]
 
static struct link_mark_listlink_marks = NULL
 

Macro Definition Documentation

◆ COLOR_MAPVIEW_TILELABEL

#define COLOR_MAPVIEW_TILELABEL   COLOR_MAPVIEW_CITYTEXT

◆ gotoline_hash_iterate

#define gotoline_hash_iterate (   hash,
  ptile,
  pglc 
)
Value:
hash, ptile, pglc)
char * incite_cost
Definition comments.c:76
static GHashTable * hash
Definition wldlg.c:322
#define TYPED_HASH_ITERATE(TYPE_key, TYPE_data, ARG_ht, NAME_key, NAME_data)
Definition spechash.h:726
Definition tile.h:50

Definition at line 68 of file mapview_common.c.

◆ gotoline_hash_iterate_end

#define gotoline_hash_iterate_end   HASH_ITERATE_END

Definition at line 71 of file mapview_common.c.

◆ link_marks_iterate

#define link_marks_iterate (   pmark)     TYPED_LIST_ITERATE(struct link_mark, link_marks, pmark)

Definition at line 3767 of file mapview_common.c.

◆ link_marks_iterate_end

#define link_marks_iterate_end   LIST_ITERATE_END

Definition at line 3769 of file mapview_common.c.

◆ NUM_CITY_COLORS

#define NUM_CITY_COLORS   tileset_num_city_colors(tileset)

Definition at line 1483 of file mapview_common.c.

◆ SPECHASH_IDATA_FREE

#define SPECHASH_IDATA_FREE   gotoline_counter_destroy

Definition at line 66 of file mapview_common.c.

◆ SPECHASH_IDATA_TYPE

#define SPECHASH_IDATA_TYPE   struct gotoline_counter *

Definition at line 65 of file mapview_common.c.

◆ SPECHASH_IKEY_TYPE

#define SPECHASH_IKEY_TYPE   struct tile *

Definition at line 64 of file mapview_common.c.

◆ SPECHASH_TAG

#define SPECHASH_TAG   gotoline

Definition at line 63 of file mapview_common.c.

◆ SPECLIST_TAG [1/2]

#define SPECLIST_TAG   animation

Definition at line 171 of file mapview_common.c.

◆ SPECLIST_TAG [2/2]

#define SPECLIST_TAG   link_mark

Definition at line 171 of file mapview_common.c.

◆ SPECLIST_TYPE [1/2]

#define SPECLIST_TYPE   struct animation

Definition at line 172 of file mapview_common.c.

◆ SPECLIST_TYPE [2/2]

#define SPECLIST_TYPE   struct link_mark

Definition at line 172 of file mapview_common.c.

Enumeration Type Documentation

◆ animation_type

Enumerator
ANIM_MOVEMENT 
ANIM_BATTLE 
ANIM_EXPL 
ANIM_NUKE 

Definition at line 130 of file mapview_common.c.

◆ tile_update_type

Enumerator
TILE_UPDATE_TILE_SINGLE 
TILE_UPDATE_TILE_FULL 
TILE_UPDATE_UNIT 
TILE_UPDATE_CITY_DESC 
TILE_UPDATE_CITYMAP 
TILE_UPDATE_TILE_LABEL 
TILE_UPDATE_COUNT 

Definition at line 106 of file mapview_common.c.

◆ update_type

Enumerator
UPDATE_NONE 
UPDATE_CITY_DESCRIPTIONS 
UPDATE_MAP_CANVAS_VISIBLE 
UPDATE_TILE_LABELS 

Definition at line 96 of file mapview_common.c.

Function Documentation

◆ anim_timer_renew()

static void anim_timer_renew ( void  )
static

Start or renew animation timer.

Definition at line 222 of file mapview_common.c.

Referenced by animation_add(), decrease_unit_hp_smooth(), move_unit_map_canvas(), set_mapview_origin(), and update_animation().

◆ animation_add()

static void animation_add ( struct animation anim)
static

Add new animation to the queue.

Definition at line 232 of file mapview_common.c.

Referenced by decrease_unit_hp_smooth(), move_unit_map_canvas(), and put_nuke_mushroom_pixmaps().

◆ animations_free()

void animations_free ( void  )

Clean up animations system.

Definition at line 188 of file mapview_common.c.

Referenced by client_game_free().

◆ animations_init()

void animations_init ( void  )

Initialize animations system.

Definition at line 180 of file mapview_common.c.

Referenced by client_game_init().

◆ append_city_buycost_string()

static void append_city_buycost_string ( const struct city pcity,
char buffer,
int  buffer_len 
)
static

Append the buy cost of the current production of the given city to the already NULL-terminated buffer. Does nothing if draw_city_buycost is set to FALSE, or if it does not make sense to buy the current production (e.g. coinage).

Definition at line 2876 of file mapview_common.c.

Referenced by get_city_mapview_production().

◆ base_canvas_to_map_pos()

static void base_canvas_to_map_pos ( float  zoom,
int map_x,
int map_y,
float  canvas_x,
float  canvas_y 
)
static

Finds the map coordinates corresponding to pixel coordinates. The resulting position is unwrapped and may be unreal.

Definition at line 751 of file mapview_common.c.

Referenced by canvas_pos_to_nearest_tile(), canvas_pos_to_tile(), and tile_to_canvas_pos().

◆ base_set_mapview_origin()

static void base_set_mapview_origin ( float  gui_x0,
float  gui_y0,
float  zoom 
)
static

Move the GUI origin to the given normalized, clipped origin. This may be called many times when sliding the mapview.

Definition at line 874 of file mapview_common.c.

Referenced by set_mapview_origin().

◆ battle_animation()

static bool battle_animation ( struct animation anim,
double  time_gone 
)
static

Progress animation of type 'battle'

Definition at line 288 of file mapview_common.c.

Referenced by update_animation().

◆ calc_mapview_origin()

static bool calc_mapview_origin ( float gui_x0,
float gui_y0,
float  zoom 
)
static

Adjust mapview origin values. Returns TRUE iff values are different from current mapview.

Definition at line 978 of file mapview_common.c.

Referenced by map_canvas_resized(), and set_mapview_origin().

◆ can_do_cached_drawing()

static bool can_do_cached_drawing ( void  )
static

Returns TRUE if cached drawing is possible. If the mapview is too large we have to turn it off.

Definition at line 3202 of file mapview_common.c.

Referenced by map_canvas_resized(), and mapdeco_init().

◆ canvas_pos_to_nearest_tile()

struct tile * canvas_pos_to_nearest_tile ( float  canvas_x,
float  canvas_y,
float  zoom 
)

Finds the tile corresponding to pixel coordinates. Returns that tile, or the one nearest is the position is off the map. Will never return NULL.

Definition at line 780 of file mapview_common.c.

Referenced by anchor_selection_rectangle(), get_center_tile_mapcanvas(), recenter_button_pressed(), and update_selection_rectangle().

◆ canvas_pos_to_tile()

struct tile * canvas_pos_to_tile ( float  canvas_x,
float  canvas_y,
float  zoom 
)

◆ center_tile_mapcanvas()

void center_tile_mapcanvas ( const struct tile ptile)

◆ client_infratile()

struct tile * client_infratile ( void  )

Return currently selected infratile, if any

Definition at line 4071 of file mapview_common.c.

Referenced by fill_sprite_array().

◆ client_infratile_set()

void client_infratile_set ( struct tile ptile)

Select specific infratile

Definition at line 4079 of file mapview_common.c.

Referenced by infra_placement_set_tile(), and infra_response_callback().

◆ decrease_unit_hp_smooth()

void decrease_unit_hp_smooth ( struct unit punit0,
int  hp0,
struct unit punit1,
int  hp1 
)

This function is called to decrease a unit's HP smoothly in battle when combat_animation is turned on.

Definition at line 2519 of file mapview_common.c.

Referenced by handle_unit_combat_info().

◆ describe_topology()

const char * describe_topology ( int  topo)

Return string describing topology id.

Definition at line 4045 of file mapview_common.c.

Referenced by handle_map_info(), and tilespec_reread().

◆ draw_segment()

void draw_segment ( struct tile src_tile,
enum direction8  dir 
)

Draw a goto line at the given location and direction. The line goes from the source tile to the adjacent tile in the given direction.

Definition at line 2481 of file mapview_common.c.

Referenced by update_map_canvas().

◆ draw_trade_route_line()

static void draw_trade_route_line ( const struct tile ptile1,
const struct tile ptile2,
enum color_std  color 
)
static

Draw a colored trade route line from one tile to another.

Definition at line 1640 of file mapview_common.c.

Referenced by draw_trade_routes_for_city().

◆ draw_trade_routes()

static void draw_trade_routes ( void  )
static

Draw trade routes between cities as lines on the main map canvas.

Definition at line 1698 of file mapview_common.c.

Referenced by update_map_canvas().

◆ draw_trade_routes_for_city()

static void draw_trade_routes_for_city ( const struct city pcity_src)
static

Draw all trade routes for the given city.

Definition at line 1681 of file mapview_common.c.

Referenced by draw_trade_routes().

◆ explosion_animation()

static bool explosion_animation ( struct animation anim,
double  time_gone 
)
static

Progress animation of type 'explosion'

Definition at line 348 of file mapview_common.c.

Referenced by update_animation().

◆ find_city_near_tile()

struct city * find_city_near_tile ( const struct tile ptile)

Find the nearest/best city that owns the tile.

Definition at line 2865 of file mapview_common.c.

Referenced by adjust_workers_button_pressed().

◆ find_city_or_settler_near_tile()

struct city * find_city_or_settler_near_tile ( const struct tile ptile,
struct unit **  punit 
)

Find the "best" city/settlers to associate with the selected tile. a. If a visible city is working the tile, return that city. b. If another player's city is working the tile, return NULL. c. If any selected cities are within range, return the closest one. d. If any cities are within range, return the closest one. e. If any active (with color) settler could work it if they founded a city, choose the closest one (only if punit != NULL). f. If any settler could work it if they founded a city, choose the closest one (only if punit != NULL). g. If nobody can work it, return NULL.

Definition at line 2774 of file mapview_common.c.

Referenced by fill_city_overlays_sprite_array(), find_city_near_tile(), and key_city_overlay().

◆ free_mapcanvas_and_overview()

void free_mapcanvas_and_overview ( void  )

Frees resources allocated for mapview and overview.

Definition at line 3664 of file mapview_common.c.

Referenced by fc_client::fc_main(), ui_main(), and ui_main().

◆ get_center_tile_mapcanvas()

struct tile * get_center_tile_mapcanvas ( void  )

◆ get_city_mapview_name_and_growth()

void get_city_mapview_name_and_growth ( struct city pcity,
char name_buffer,
size_t  name_buffer_len,
char growth_buffer,
size_t  growth_buffer_len,
enum color_std growth_color,
enum color_std production_color 
)

Fill the two buffers which information about the city which is shown below it. It does not take draw_city_names/draw_city_growth into account.

Definition at line 3157 of file mapview_common.c.

Referenced by show_full_citybar(), and show_small_citybar().

◆ get_city_mapview_production()

void get_city_mapview_production ( struct city pcity,
char buffer,
size_t  buffer_len 
)

Find the mapview city production text for the given city, and place it into the buffer.

Definition at line 2894 of file mapview_common.c.

Referenced by show_full_citybar(), and show_small_citybar().

◆ get_city_mapview_trade_routes()

void get_city_mapview_trade_routes ( struct city pcity,
char trade_routes_buffer,
size_t  trade_routes_buffer_len,
enum color_std pcolor 
)

Find the mapview city trade routes text for the given city, and place it into the buffer. Sets 'pcolor' to the preferred color the text should be drawn in if it is non-NULL.

Definition at line 2920 of file mapview_common.c.

Referenced by show_full_citybar(), and show_small_citybar().

◆ get_mapview_scroll_pos()

void get_mapview_scroll_pos ( int scroll_x,
int scroll_y 
)

Find the current scroll position (origin) of the mapview.

Definition at line 1206 of file mapview_common.c.

Referenced by mouse_scroll_mapcanvas(), mouse_scroll_mapcanvas(), scrollbar_jump_callback(), tile_visible_and_not_on_border_mapcanvas(), and update_map_canvas_scrollbars().

◆ get_mapview_scroll_step()

void get_mapview_scroll_step ( int xstep,
int ystep 
)

Find the scroll step for the mapview. This is the amount to scroll (in scroll coordinates) on each "step". See also get_mapview_scroll_window().

Definition at line 1192 of file mapview_common.c.

Referenced by mouse_scroll_mapcanvas(), mouse_scroll_mapcanvas(), and update_map_canvas_scrollbars_size().

◆ get_mapview_scroll_window()

void get_mapview_scroll_window ( float xmin,
float ymin,
float xmax,
float ymax,
int xsize,
int ysize 
)

Return the scroll dimensions of the clipping window for the mapview window..

Imagine the entire map in scroll coordinates. It is a rectangle. Now imagine the mapview "window" sliding around through this rectangle. How far can it slide? In most cases it has to be able to slide past the ends of the map rectangle so that it's capable of reaching the whole area.

This function gives constraints on how far the window is allowed to slide. xmin and ymin are the minimum values for the window origin. xsize and ysize give the scroll dimensions of the mapview window. xmax and ymax give the maximum values that the bottom/left ends of the window may reach. The constraints, therefore, are that:

get_mapview_scroll_pos(&scroll_x, &scroll_y); xmin <= scroll_x < xmax - xsize ymin <= scroll_y < ymax - ysize

This function should be used anywhere and everywhere that scrolling is constrained.

Note that scroll coordinates, not map coordinates, are used. Currently these correspond to native coordinates.

Definition at line 1108 of file mapview_common.c.

Referenced by calc_mapview_origin(), tile_visible_and_not_on_border_mapcanvas(), and update_map_canvas_scrollbars_size().

◆ get_spaceship_dimensions()

void get_spaceship_dimensions ( int width,
int height 
)

Return the desired width of the spaceship canvas.

Definition at line 3673 of file mapview_common.c.

Referenced by create_spaceship_dialog(), and ss_report::ss_report().

◆ gotoline_counter_destroy()

static void gotoline_counter_destroy ( struct gotoline_counter pglc)
static

Create a new goto line counter.

Definition at line 495 of file mapview_common.c.

◆ gotoline_counter_new()

static struct gotoline_counter * gotoline_counter_new ( void  )
inlinestatic

Create a new goto line counter.

Definition at line 486 of file mapview_common.c.

Referenced by mapdeco_add_gotoline().

◆ gui_distance_vector()

static void gui_distance_vector ( const struct tileset t,
float  zoom,
float gui_dx,
float gui_dy,
float  gui_x0,
float  gui_y0,
float  gui_x1,
float  gui_y1 
)
static

Find the vector with minimum "real" distance between two GUI positions. This corresponds to map_to_distance_vector but works for GUI coordinates.

Definition at line 830 of file mapview_common.c.

Referenced by base_set_mapview_origin(), and set_mapview_origin().

◆ gui_to_map_pos()

static void gui_to_map_pos ( const struct tileset t,
float  zoom,
int map_x,
int map_y,
float  gui_x,
float  gui_y 
)
static

Translate from gui to map coordinate systems. See map_to_gui_pos().

Note that you lose some information in this conversion. If you convert from a gui position to a map position and back, you will probably not get the same value you started with.

Definition at line 607 of file mapview_common.c.

Referenced by base_canvas_to_map_pos(), gui_distance_vector(), and normalize_gui_pos().

◆ init_mapcanvas_and_overview()

void init_mapcanvas_and_overview ( void  )

Sets up data for the mapview and overview.

Definition at line 3655 of file mapview_common.c.

Referenced by activate_gui(), fc_client::init(), ui_main(), and ui_main().

◆ link_mark_add_new()

void link_mark_add_new ( enum text_link_type  type,
int  id 
)

Add a visible link for 2 turns.

Definition at line 3957 of file mapview_common.c.

Referenced by handle_event().

◆ link_mark_color()

static struct color * link_mark_color ( const struct link_mark pmark)
static

Returns the color of the pointed mark.

Definition at line 3836 of file mapview_common.c.

Referenced by link_mark_draw().

◆ link_mark_destroy()

static void link_mark_destroy ( struct link_mark pmark)
static

Remove a link mark.

Definition at line 3805 of file mapview_common.c.

Referenced by link_marks_init().

◆ link_mark_draw()

static void link_mark_draw ( const struct link_mark pmark)
static

Print a link mark.

Definition at line 3853 of file mapview_common.c.

Referenced by link_marks_draw_all().

◆ link_mark_find()

static struct link_mark * link_mark_find ( enum text_link_type  type,
int  id 
)
static

Find a link mark in the list.

Definition at line 3776 of file mapview_common.c.

Referenced by link_mark_add_new(), and link_mark_restore().

◆ link_mark_new()

static struct link_mark * link_mark_new ( enum text_link_type  type,
int  id,
int  turns 
)
static

Create a new link mark.

Definition at line 3790 of file mapview_common.c.

Referenced by link_mark_add_new(), and link_mark_restore().

◆ link_mark_restore()

void link_mark_restore ( enum text_link_type  type,
int  id 
)

Add a visible link for 1 turn.

Definition at line 3979 of file mapview_common.c.

Referenced by chatwdg::anchor_clicked(), event_after(), and event_after().

◆ link_mark_tile()

static struct tile * link_mark_tile ( const struct link_mark pmark)
static

Returns the location of the pointed mark.

Definition at line 3813 of file mapview_common.c.

Referenced by link_mark_add_new(), link_mark_draw(), and link_mark_restore().

◆ link_marks_clear_all()

void link_marks_clear_all ( void  )

Clear all visible links.

Definition at line 3934 of file mapview_common.c.

Referenced by chatwdg::rm_links(), and setup_widgets().

◆ link_marks_decrease_turn_counters()

void link_marks_decrease_turn_counters ( void  )

Clear all visible links.

Definition at line 3943 of file mapview_common.c.

Referenced by handle_new_year().

◆ link_marks_draw_all()

void link_marks_draw_all ( void  )

Draw all link marks.

Definition at line 3924 of file mapview_common.c.

Referenced by update_map_canvas().

◆ link_marks_free()

void link_marks_free ( void  )

Free the link marks.

Definition at line 3911 of file mapview_common.c.

Referenced by client_game_free(), client_game_reset(), and link_marks_init().

◆ link_marks_init()

void link_marks_init ( void  )

Initialize the link marks.

Definition at line 3899 of file mapview_common.c.

Referenced by client_game_init(), and client_game_reset().

◆ map_canvas_resized()

bool map_canvas_resized ( int  width,
int  height 
)

Called if the map in the GUI is resized.

Returns TRUE iff the canvas was redrawn.

Definition at line 3564 of file mapview_common.c.

Referenced by init_mapcanvas_and_overview(), map_canvas_configure(), map_canvas_size_refresh(), overview_size_changed(), real_resize_window_callback(), fc_game_tab_widget::resizeEvent(), mr_menu::save_image(), zoom_1_0(), and zoom_set().

◆ map_to_gui_pos()

static void map_to_gui_pos ( const struct tileset t,
float  zoom,
float gui_x,
float gui_y,
int  map_x,
int  map_y 
)
static

Translate from map to gui coordinate systems.

GUI coordinates are comparable to canvas coordinates but extend in all directions. gui(0,0) == map(0,0).

Definition at line 592 of file mapview_common.c.

Referenced by center_tile_mapcanvas(), get_mapview_scroll_window(), gui_distance_vector(), map_canvas_resized(), normalize_gui_pos(), tile_to_canvas_pos(), and trade_route_to_canvas_lines().

◆ map_to_gui_vector()

void map_to_gui_vector ( const struct tileset t,
float  zoom,
float gui_dx,
float gui_dy,
int  map_dx,
int  map_dy 
)

Translate from a cartesian system to the GUI system. This function works on vectors, meaning it can be passed a (dx,dy) pair and will return the change in GUI coordinates corresponding to this vector. It is thus more general than map_to_gui_pos().

Note that a gui_to_map_vector function is not possible, since the resulting map vector may differ based on the origin of the gui vector.

Definition at line 563 of file mapview_common.c.

Referenced by city_to_canvas_pos(), draw_calculated_trade_routes(), draw_segment(), generate_citydlg_dimensions(), map_to_gui_pos(), and move_unit_map_canvas().

◆ mapdeco_add_gotoline()

void mapdeco_add_gotoline ( const struct tile ptile,
enum direction8  dir 
)

Add a goto line from the given tile 'ptile' in the direction 'dir'. If there was no previously drawn line there, a mapview update is queued for the source and destination tiles.

Definition at line 3416 of file mapview_common.c.

Referenced by goto_path_redraw(), and mapdeco_set_gotoroute().

◆ mapdeco_clear_crosshairs()

void mapdeco_clear_crosshairs ( void  )

Clears all previous set tile crosshair decorations. Marks the affected tiles as needing a mapview update.

Definition at line 3398 of file mapview_common.c.

Referenced by fc_client::popdown_tile_info(), and popupinfo_popdown_callback().

◆ mapdeco_clear_gotoroutes()

void mapdeco_clear_gotoroutes ( void  )

Clear all goto line map decorations and queues mapview updates for the affected tiles.

Definition at line 3542 of file mapview_common.c.

Referenced by fc_client::popdown_tile_info(), and popupinfo_popdown_callback().

◆ mapdeco_clear_highlights()

void mapdeco_clear_highlights ( void  )

Clears all highlighting. Marks the previously highlighted tiles as needing a mapview update.

Definition at line 3347 of file mapview_common.c.

Referenced by cancel_tile_hiliting().

◆ mapdeco_free()

void mapdeco_free ( void  )

Free all memory used for map decorations.

Definition at line 3292 of file mapview_common.c.

Referenced by mapdeco_init().

◆ mapdeco_init()

void mapdeco_init ( void  )

Called when we receive map dimensions. It initialized the mapview decorations.

Definition at line 3278 of file mapview_common.c.

Referenced by handle_map_info().

◆ mapdeco_is_crosshair_set()

bool mapdeco_is_crosshair_set ( const struct tile ptile)

Returns TRUE if there is a "crosshair" decoration set at the given tile.

Definition at line 3386 of file mapview_common.c.

Referenced by fill_sprite_array().

◆ mapdeco_is_gotoline_set()

bool mapdeco_is_gotoline_set ( const struct tile ptile,
enum direction8  dir 
)

Returns TRUE if a goto line should be drawn from the given tile in the given direction.

Definition at line 3521 of file mapview_common.c.

Referenced by update_map_canvas().

◆ mapdeco_is_highlight_set()

bool mapdeco_is_highlight_set ( const struct tile ptile)

Return TRUE if the given tile is highlighted.

Definition at line 3335 of file mapview_common.c.

Referenced by fill_grid_sprite_array(), find_city_or_settler_near_tile(), is_city_hilited(), and toggle_tile_hilite().

◆ mapdeco_remove_gotoline()

void mapdeco_remove_gotoline ( const struct tile ptile,
enum direction8  dir 
)

Removes a goto line from the given tile 'ptile' going in the direction 'dir'. If this was the last line there, a mapview update is queued to erase the drawn line.

Definition at line 3450 of file mapview_common.c.

Referenced by goto_path_redraw(), and goto_path_undraw().

◆ mapdeco_set_crosshair()

void mapdeco_set_crosshair ( const struct tile ptile,
bool  crosshair 
)

Marks the given tile as having a "crosshair" map decoration.

Definition at line 3363 of file mapview_common.c.

Referenced by popit(), popit(), and fc_client::popup_tile_info().

◆ mapdeco_set_gotoroute()

void mapdeco_set_gotoroute ( const struct unit punit)

Set the map decorations for the given unit's goto route. A goto route consists of one or more goto lines, with each line being from the center of one tile to the center of another tile.

Definition at line 3486 of file mapview_common.c.

Referenced by popit(), popit(), and fc_client::popup_tile_info().

◆ mapdeco_set_highlight()

void mapdeco_set_highlight ( const struct tile ptile,
bool  highlight 
)

Set the given tile's map decoration as either highlighted or not, depending on the value of 'highlight'.

Definition at line 3312 of file mapview_common.c.

Referenced by define_tiles_within_rectangle(), and toggle_tile_hilite().

◆ move_unit_map_canvas()

void move_unit_map_canvas ( struct unit punit,
struct tile src_tile,
int  dx,
int  dy 
)

Animates punit's "smooth" move from (x0, y0) to (x0 + dx, y0 + dy). Note: Works only for adjacent-tile moves.

Definition at line 2655 of file mapview_common.c.

Referenced by do_move_unit().

◆ movement_animation()

static bool movement_animation ( struct animation anim,
double  time_gone 
)
static

Progress animation of type 'movement'

Definition at line 246 of file mapview_common.c.

Referenced by update_animation().

◆ normalize_gui_pos()

static void normalize_gui_pos ( const struct tileset t,
float  zoom,
float gui_x,
float gui_y 
)
static

Normalize (wrap) the GUI position. This is equivalent to a map wrapping, but in GUI coordinates so that pixel accuracy is preserved.

Definition at line 794 of file mapview_common.c.

Referenced by base_set_mapview_origin(), calc_mapview_origin(), and gui_distance_vector().

◆ nuke_animation()

static bool nuke_animation ( struct animation anim,
double  time_gone 
)
static

Progress animation of type 'nuke'

Definition at line 400 of file mapview_common.c.

Referenced by update_animation().

◆ put_city()

void put_city ( struct city pcity,
struct canvas pcanvas,
float  zoom,
int  canvas_x,
int  canvas_y 
)

Draw the given city onto the canvas store at the given location. The area of drawing is tileset_full_tile_height(tileset) x tileset_full_tile_width(tileset).

Definition at line 1418 of file mapview_common.c.

◆ put_drawn_sprites()

void put_drawn_sprites ( struct canvas pcanvas,
float  zoom,
int  canvas_x,
int  canvas_y,
int  count,
struct drawn_sprite pdrawn,
bool  fog 
)

◆ put_nuke_mushroom_pixmaps()

void put_nuke_mushroom_pixmaps ( struct tile ptile)

Animate the nuke explosion at map(x, y).

Definition at line 1525 of file mapview_common.c.

Referenced by handle_nuke_tile_info().

◆ put_one_element()

void put_one_element ( struct canvas pcanvas,
float  zoom,
enum mapview_layer  layer,
const struct tile ptile,
const struct tile_edge pedge,
const struct tile_corner pcorner,
const struct unit punit,
const struct city pcity,
int  canvas_x,
int  canvas_y,
const struct city citymode,
const struct unit_type putype 
)

Draw one layer of a tile, edge, corner, unit, and/or city onto the canvas at the given position.

Definition at line 1364 of file mapview_common.c.

Referenced by city_dialog_redraw_map(), create_pixbuf_from_layers(), put_city(), put_one_tile(), put_terrain(), put_unit(), put_unittype(), and update_map_canvas().

◆ put_one_tile()

static void put_one_tile ( struct canvas pcanvas,
enum mapview_layer  layer,
struct tile ptile,
int  canvas_x,
int  canvas_y,
const struct city citymode 
)
static

Draw some or all of a tile onto the canvas.

Definition at line 1576 of file mapview_common.c.

Referenced by update_map_canvas().

◆ put_spaceship()

void put_spaceship ( struct canvas pcanvas,
int  canvas_x,
int  canvas_y,
const struct player pplayer 
)

Draw the spaceship onto the canvas.

Definition at line 3686 of file mapview_common.c.

Referenced by spaceship_image_canvas_draw(), spaceship_image_canvas_expose(), and ss_report::update_report().

◆ put_terrain()

void put_terrain ( struct tile ptile,
struct canvas pcanvas,
float  zoom,
int  canvas_x,
int  canvas_y 
)

Draw the given tile terrain onto the canvas store at the given location. The area of drawing is tileset_full_tile_height(tileset) x tileset_full_tile_width(tileset) (even though most tiles are not this tall).

Definition at line 1435 of file mapview_common.c.

Referenced by get_terrain_surface(), and hud_units::update_actions().

◆ put_unit()

void put_unit ( const struct unit punit,
struct canvas pcanvas,
float  zoom,
int  canvas_x,
int  canvas_y 
)

◆ put_unit_city_overlays()

void put_unit_city_overlays ( struct unit punit,
struct canvas pcanvas,
int  canvas_x,
int  canvas_y,
int upkeep_cost,
int  happy_cost 
)

Draw food, gold, and shield upkeep values on the unit.

The proper way to do this is probably something like what Civ II does (one sprite drawn N times on top of itself), but we just use separate sprites (limiting the number of combinations).

Definition at line 1453 of file mapview_common.c.

Referenced by put_unit_image_city_overlays(), put_unit_picture_city_overlays(), and unit_item::unit_item().

◆ put_unittype()

void put_unittype ( const struct unit_type putype,
struct canvas pcanvas,
float  zoom,
int  canvas_x,
int  canvas_y 
)

Draw the given unit onto the canvas store at the given location. The area of drawing is tileset_unit_height(tileset) x tileset_unit_width(tileset).

Definition at line 1403 of file mapview_common.c.

Referenced by hud_unit_combat::init_images(), help_widget::set_topic_unit(), and usdlg_tab_append_utype().

◆ queue_add_callback()

static void queue_add_callback ( void  )
static

When a mapview update is queued this function should be called to prepare an idle-time callback to unqueue the updates.

Definition at line 2983 of file mapview_common.c.

Referenced by queue_mapview_tile_update(), and queue_mapview_update().

◆ queue_callback()

static void queue_callback ( void data)
static

This callback is called during an idle moment to unqueue any pending mapview updates.

Definition at line 2973 of file mapview_common.c.

Referenced by queue_add_callback().

◆ queue_mapview_tile_update()

void queue_mapview_tile_update ( struct tile ptile,
enum tile_update_type  type 
)
static

Queue this tile to be refreshed. The refresh will be done some time soon thereafter, and grouped with other needed refreshes.

Note this should only be called for tiles. For cities or units use queue_mapview_xxx_update() instead.

Definition at line 3023 of file mapview_common.c.

Referenced by refresh_city_mapcanvas(), refresh_tile_mapcanvas(), refresh_unit_mapcanvas(), update_city_description(), and update_tile_label().

◆ queue_mapview_update()

void queue_mapview_update ( enum update_type  update)
static

This function, along with unqueue_mapview_update(), helps in updating the mapview when a packet is received. Previously, we just called update_map_canvas() when (for instance) a city update was received. Not only would this often end up with a lot of duplicated work, but it would also draw over the city descriptions, which would then just "disappear" from the mapview. The hack is to instead call queue_mapview_update in place of this update, and later (after all packets have been read) call unqueue_mapview_update(). The functions don't track which areas of the screen need updating, rather when the unqueue is done we just update the whole visible mapqueue, and redraw the city descriptions.

Using these functions, updates are done correctly, and are probably faster too. But it's a bit of a hack to insert this code into the packet-handling code.

Definition at line 3008 of file mapview_common.c.

Referenced by refresh_unit_mapcanvas(), and update_map_canvas_visible().

◆ refresh_city_mapcanvas()

void refresh_city_mapcanvas ( struct city pcity,
struct tile ptile,
bool  full_refresh,
bool  write_to_screen 
)

Refreshes a single city on the map canvas.

If full_refresh is given then the citymap area and the city text will also be refreshed. Otherwise only the base city sprite is refreshed.

Definition at line 541 of file mapview_common.c.

Referenced by city_packet_common(), client_remove_city(), handle_unit_packet_common(), and toggle_city_color().

◆ refresh_tile_mapcanvas()

void refresh_tile_mapcanvas ( struct tile ptile,
bool  full_refresh,
bool  write_to_screen 
)

◆ refresh_unit_mapcanvas()

void refresh_unit_mapcanvas ( struct unit punit,
struct tile ptile,
bool  full_refresh,
bool  write_to_screen 
)

◆ set_frame_by_frame_animation()

void set_frame_by_frame_animation ( void  )

Set frame by frame animation mode on.

Definition at line 4063 of file mapview_common.c.

Referenced by ui_init().

◆ set_mapview_origin()

void set_mapview_origin ( float  gui_x0,
float  gui_y0,
float  zoom 
)

Change the mapview origin, clip it, and update everything.

Definition at line 1008 of file mapview_common.c.

Referenced by center_tile_mapcanvas(), scroll_mapview(), and set_mapview_scroll_pos().

◆ set_mapview_scroll_pos()

void set_mapview_scroll_pos ( int  scroll_x,
int  scroll_y,
float  zoom 
)

Set the scroll position (origin) of the mapview, and update the GUI.

Definition at line 1215 of file mapview_common.c.

Referenced by mouse_scroll_mapcanvas(), mouse_scroll_mapcanvas(), and scrollbar_jump_callback().

◆ show_city_desc()

static void show_city_desc ( struct canvas pcanvas,
int  canvas_x,
int  canvas_y,
struct city pcity,
int width,
int height 
)
static

Draw a description for the given city. This description may include the name, turns-to-grow, production, and city turns-to-build (depending on client options).

(canvas_x, canvas_y) gives the location on the given canvas at which to draw the description. This is the location of the city itself so the text must be drawn underneath it. pcity gives the city to be drawn, while (*width, *height) should be set by show_city_desc() to contain the width and height of the text block (centered directly underneath the city's tile).

Definition at line 2321 of file mapview_common.c.

Referenced by show_city_descriptions().

◆ show_city_descriptions()

void show_city_descriptions ( int  canvas_base_x,
int  canvas_base_y,
int  width_base,
int  height_base 
)

Show descriptions for all cities visible on the map canvas.

Definition at line 2363 of file mapview_common.c.

Referenced by update_city_descriptions(), and update_map_canvas().

◆ show_full_citybar()

static void show_full_citybar ( struct canvas pcanvas,
const int  canvas_x0,
const int  canvas_y0,
struct city pcity,
int width,
int height 
)
static

Draw a "full" city bar for the city. This is a subcase of show_city_desc() (see that function for more info) for tilesets that have a full city bar.

Definition at line 1897 of file mapview_common.c.

Referenced by show_city_desc().

◆ show_small_citybar()

static void show_small_citybar ( struct canvas pcanvas,
int  canvas_x,
int  canvas_y,
struct city pcity,
int width,
int height 
)
static

Draw a "small" city bar for the city. This is a subcase of show_city_desc() (see that function for more info) for tilesets that do not have a full city bar.

Definition at line 2201 of file mapview_common.c.

Referenced by show_city_desc().

◆ show_tile_label()

static void show_tile_label ( struct canvas pcanvas,
int  canvas_x,
int  canvas_y,
struct tile ptile,
int width,
int height 
)
static

Draw a label for the given tile.

(canvas_x, canvas_y) gives the location on the given canvas at which to draw the label. This is the location of the tile itself so the text must be drawn underneath it. pcity gives the city to be drawn, while (*width, *height) should be set by show_tile_label() to contain the width and height of the text block (centered directly underneath the city's tile).

Definition at line 2342 of file mapview_common.c.

Referenced by show_tile_labels().

◆ show_tile_labels()

void show_tile_labels ( int  canvas_base_x,
int  canvas_base_y,
int  width_base,
int  height_base 
)

Show labels for all tiles visible on the map canvas.

Definition at line 2437 of file mapview_common.c.

Referenced by update_map_canvas().

◆ tile_to_canvas_pos()

bool tile_to_canvas_pos ( float canvas_x,
float canvas_y,
float  zoom,
const struct tile ptile 
)

Finds the canvas coordinates for a map position. Beside setting the results in canvas_x, canvas_y it returns whether the tile is inside the visible mapview canvas.

The result represents the upper left pixel (origin) of the bounding box of the tile. Note that in iso-view this origin is not a part of the tile itself - so to make the operation reversible you would have to call canvas_to_map_pos on the center of the tile, not the origin.

The center of a tile is defined as: { tile_to_canvas_pos(&canvas_x, &canvas_y, map_zoom, ptile); canvas_x += tileset_tile_width(tileset) * map_zoom / 2; canvas_y += tileset_tile_height(tileset) * map_zoom / 2; }

This pixel is one position closer to the lower right, which may be important to remember when doing some round-off operations. Other parts of the code assume tileset_tile_width(tileset) and tileset_tile_height(tileset) to be even numbers.

Definition at line 706 of file mapview_common.c.

Referenced by anchor_selection_rectangle(), battle_animation(), info_tile::calc_size(), decrease_unit_hp_smooth(), define_tiles_within_rectangle(), draw_calculated_trade_routes(), draw_segment(), explosion_animation(), link_mark_draw(), move_unit_map_canvas(), movement_animation(), nuke_animation(), popit(), popupinfo_positioning_callback(), put_cross_overlay_tile(), put_nuke_mushroom_pixmaps(), put_window_near_map_tile(), tile_visible_and_not_on_border_mapcanvas(), tile_visible_mapcanvas(), trade_route_to_canvas_lines(), unqueue_mapview_updates(), and update_selection_rectangle().

◆ tile_visible_and_not_on_border_mapcanvas()

bool tile_visible_and_not_on_border_mapcanvas ( struct tile ptile)

Return TRUE iff the given map position has a tile visible within the interior of the map canvas. This information is used to determine when we need to recenter the map canvas.

The logic of this function is simple: if a tile is within 1.5 tiles of a border of the canvas and that border is not aligned with the edge of the map, then the tile is on the "border" of the map canvas.

This function is only correct for the current topology.

Definition at line 1282 of file mapview_common.c.

Referenced by auto_center_on_focus_unit(), do_move_unit(), and unit_focus_advance().

◆ tile_visible_mapcanvas()

bool tile_visible_mapcanvas ( struct tile ptile)

Return TRUE iff the given map position has a tile visible on the map canvas.

Definition at line 1264 of file mapview_common.c.

Referenced by handle_unit_combat_info(), link_mark_add_new(), link_mark_restore(), and move_unit_map_canvas().

◆ tileset_map_topo_compatible()

enum topo_comp_lvl tileset_map_topo_compatible ( int  topology_id,
struct tileset tset,
int tset_topo 
)

Are the topology and tileset compatible?

Definition at line 3999 of file mapview_common.c.

Referenced by handle_map_info(), handle_set_topology(), and tilespec_reread().

◆ toggle_city_color()

void toggle_city_color ( struct city pcity)

Toggle the city color. This cycles through the possible colors for the citymap as shown on the mapview. These colors are listed in the city_colors array; above.

Definition at line 1491 of file mapview_common.c.

Referenced by key_city_overlay().

◆ toggle_unit_color()

void toggle_unit_color ( struct unit punit)

Toggle the unit color. This cycles through the possible colors for the citymap as shown on the mapview. These colors are listed in the city_colors array; above.

Definition at line 1509 of file mapview_common.c.

Referenced by key_city_overlay().

◆ trade_route_to_canvas_lines()

static int trade_route_to_canvas_lines ( const struct tile ptile1,
const struct tile ptile2,
struct trade_route_line lines 
)
static

Depending on where ptile1 and ptile2 are on the map canvas, a trade route line may need to be drawn as two disjointed line segments. This function fills the given line array 'lines' with the necessary line segments.

The return value is the number of line segments that need to be drawn.

NB: It is assumed ptile1 and ptile2 are already consistently ordered. NB: 'lines' must be able to hold least MAX_TRADE_ROUTE_DRAW_LINES elements.

Definition at line 1610 of file mapview_common.c.

Referenced by draw_trade_route_line().

◆ unqueue_mapview_updates()

void unqueue_mapview_updates ( bool  write_to_screen)

◆ update_animation()

void update_animation ( void  )

Progress current animation

Definition at line 439 of file mapview_common.c.

Referenced by animation_idle_cb(), and map_canvas_draw().

◆ update_city_description()

void update_city_description ( struct city pcity)

◆ update_map_canvas()

void update_map_canvas ( int  canvas_x,
int  canvas_y,
int  width,
int  height 
)

Update (refresh) the map canvas starting at the given tile (in map coordinates) and with the given dimensions (also in map coordinates).

In non-iso view, this is easy. In iso view, we have to use the Painter's Algorithm to draw the tiles in back first. When we draw a tile, we tell the GUI which part of the tile to draw - which is necessary unless we have an extra buffering step.

After refreshing the backing store tile-by-tile, we write the store out to the display if write_to_screen is specified.

x, y, width, and height are in map coordinates; they need not be normalized or even real.

Definition at line 1736 of file mapview_common.c.

Referenced by advance_global_anim_state(), base_set_mapview_origin(), editor_end_selection_rectangle(), explosion_animation(), movement_animation(), unqueue_mapview_updates(), and update_animation().

◆ update_map_canvas_visible()

void update_map_canvas_visible ( void  )

◆ update_tile_label()

void update_tile_label ( struct tile ptile)

Update the label for the given tile

Definition at line 1888 of file mapview_common.c.

Referenced by show_tile_labels().

Variable Documentation

◆ anim_timer

struct timer* anim_timer = NULL
static

◆ animations

struct animation_list* animations = NULL

◆ callback_queued

bool callback_queued = FALSE
static

Definition at line 2959 of file mapview_common.c.

Referenced by queue_add_callback(), and queue_callback().

◆ can_slide

bool can_slide = TRUE

◆ center_tile

const struct tile* center_tile = NULL

◆ color_index

int color_index = 0
static

Definition at line 1482 of file mapview_common.c.

Referenced by toggle_city_color(), and toggle_unit_color().

◆ frame_by_frame_animation

bool frame_by_frame_animation = FALSE
static

◆ infratile

struct tile* infratile = NULL

Definition at line 82 of file mapview_common.c.

Referenced by client_infratile(), and client_infratile_set().

◆ link_marks

struct link_mark_list* link_marks = NULL
static

◆ mapdeco_crosshair_table

struct tile_hash* mapdeco_crosshair_table

◆ mapdeco_gotoline_table

struct gotoline_hash* mapdeco_gotoline_table

◆ mapdeco_highlight_table

struct tile_hash* mapdeco_highlight_table

◆ mapview

struct view mapview

◆ max_desc_height

int max_desc_height = 0
static

Definition at line 1872 of file mapview_common.c.

Referenced by show_city_descriptions(), and unqueue_mapview_updates().

◆ max_desc_width

int max_desc_width = 0
static

Definition at line 1872 of file mapview_common.c.

Referenced by show_city_descriptions(), and unqueue_mapview_updates().

◆ max_label_height

int max_label_height = 0
static

Definition at line 1875 of file mapview_common.c.

Referenced by show_tile_labels(), and unqueue_mapview_updates().

◆ max_label_width

int max_label_width = 0
static

◆ MAX_TRADE_ROUTE_DRAW_LINES

const int MAX_TRADE_ROUTE_DRAW_LINES = 2
static

Definition at line 126 of file mapview_common.c.

Referenced by draw_trade_route_line().

◆ needed_updates

enum update_type needed_updates = UPDATE_NONE
static

Definition at line 2958 of file mapview_common.c.

Referenced by queue_mapview_update(), and unqueue_mapview_updates().

◆ tile_updates

Definition at line 2967 of file mapview_common.c.

Referenced by queue_mapview_tile_update(), and unqueue_mapview_updates().