Freeciv-3.2
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Macros | Functions | Variables
canvas.c File Reference
#include "colors.h"
#include "gui_main.h"
#include "mapview.h"
#include "canvas.h"

Go to the source code of this file.

Macros

#define FONT(font)   (*fonts[font].styles)
 

Functions

struct canvascanvas_create (int width, int height)
 
void canvas_free (struct canvas *store)
 
void canvas_set_zoom (struct canvas *store, float zoom)
 
bool has_zoom_support (void)
 
void canvas_mapview_init (struct canvas *store)
 
void canvas_copy (struct canvas *dest, struct canvas *src, int src_x, int src_y, int dest_x, int dest_y, int width, int height)
 
void canvas_put_sprite (struct canvas *pcanvas, int canvas_x, int canvas_y, struct sprite *sprite, int offset_x, int offset_y, int width, int height)
 
void canvas_put_sprite_full (struct canvas *pcanvas, int canvas_x, int canvas_y, struct sprite *sprite)
 
void canvas_put_sprite_full_scaled (struct canvas *pcanvas, int canvas_x, int canvas_y, int canvas_w, int canvas_h, struct sprite *sprite)
 
void canvas_put_sprite_fogged (struct canvas *pcanvas, int canvas_x, int canvas_y, struct sprite *psprite, bool fog, int fog_x, int fog_y)
 
void canvas_put_rectangle (struct canvas *pcanvas, struct color *pcolor, int canvas_x, int canvas_y, int width, int height)
 
void canvas_fill_sprite_area (struct canvas *pcanvas, struct sprite *psprite, struct color *pcolor, int canvas_x, int canvas_y)
 
void canvas_put_line (struct canvas *pcanvas, struct color *pcolor, enum line_type ltype, int start_x, int start_y, int dx, int dy)
 
void canvas_put_curved_line (struct canvas *pcanvas, struct color *pcolor, enum line_type ltype, int start_x, int start_y, int dx, int dy)
 
void get_text_size (int *width, int *height, enum client_font font, const char *text)
 
void canvas_put_text (struct canvas *pcanvas, int canvas_x, int canvas_y, enum client_font font, struct color *pcolor, const char *text)
 
void surface_put_text (cairo_t *cr, int x, int y, float zoom, enum client_font font, struct color *pcolor, const char *text)
 

Variables

static PangoLayoutlayout
 
struct { 
 
   PangoFontDescription **   styles 
 
   bool   shadowed 
 
fonts [FONT_COUNT
 

Macro Definition Documentation

◆ FONT

#define FONT (   font)    (*fonts[font].styles)

Definition at line 334 of file canvas.c.

Function Documentation

◆ canvas_copy()

void canvas_copy ( struct canvas dest,
struct canvas src,
int  src_x,
int  src_y,
int  dest_x,
int  dest_y,
int  width,
int  height 
)

Copies an area from the source canvas to the destination canvas.

Definition at line 76 of file canvas.c.

Referenced by base_set_mapview_origin(), decrease_unit_hp_smooth(), move_unit_map_canvas(), redraw_overview(), refresh_overview_from_canvas(), and update_map_canvas().

◆ canvas_create()

struct canvas * canvas_create ( int  width,
int  height 
)

◆ canvas_fill_sprite_area()

void canvas_fill_sprite_area ( struct canvas pcanvas,
struct sprite psprite,
struct color pcolor,
int  canvas_x,
int  canvas_y 
)

Fill the area covered by the sprite with the given color.

Definition at line 211 of file canvas.c.

◆ canvas_free()

void canvas_free ( struct canvas store)

◆ canvas_mapview_init()

void canvas_mapview_init ( struct canvas store)

Initialize canvas as mapview.

Definition at line 69 of file canvas.c.

Referenced by map_canvas_resized().

◆ canvas_put_curved_line()

void canvas_put_curved_line ( struct canvas pcanvas,
struct color pcolor,
enum line_type  ltype,
int  start_x,
int  start_y,
int  dx,
int  dy 
)

Draw a colored curved line for the Technology Tree connectors A curved line is: 1 horizontal line, 2 arcs, 1 horizontal line

Definition at line 276 of file canvas.c.

Referenced by draw_reqtree().

◆ canvas_put_line()

void canvas_put_line ( struct canvas pcanvas,
struct color pcolor,
enum line_type  ltype,
int  start_x,
int  start_y,
int  dx,
int  dy 
)

Draw a colored line onto the mapview or citydialog canvas. XXX: unlike other canvas_put functions, supplied x/y are not prior to any canvas zoom.

Definition at line 225 of file canvas.c.

◆ canvas_put_rectangle()

void canvas_put_rectangle ( struct canvas pcanvas,
struct color pcolor,
int  canvas_x,
int  canvas_y,
int  width,
int  height 
)

Draw a filled-in colored rectangle onto the mapview or citydialog canvas. Supplied coordinates are prior to any canvas zoom.

Definition at line 183 of file canvas.c.

◆ canvas_put_sprite()

void canvas_put_sprite ( struct canvas pcanvas,
int  canvas_x,
int  canvas_y,
struct sprite sprite,
int  offset_x,
int  offset_y,
int  width,
int  height 
)

Draw some or all of a sprite onto the mapview or citydialog canvas. Supplied coordinates are prior to any canvas zoom.

Definition at line 106 of file canvas.c.

◆ canvas_put_sprite_fogged()

void canvas_put_sprite_fogged ( struct canvas pcanvas,
int  canvas_x,
int  canvas_y,
struct sprite psprite,
bool  fog,
int  fog_x,
int  fog_y 
)

Draw a full sprite onto the canvas. If "fog" is specified draw it with fog.

Definition at line 170 of file canvas.c.

Referenced by put_drawn_sprites().

◆ canvas_put_sprite_full()

void canvas_put_sprite_full ( struct canvas pcanvas,
int  canvas_x,
int  canvas_y,
struct sprite sprite 
)

Draw a full sprite onto the mapview or citydialog canvas. Supplied canvas_x/y are prior to any canvas zoom.

Definition at line 144 of file canvas.c.

Referenced by canvas_put_flag_sprite(), canvas_put_sprite_fogged(), decrease_unit_hp_smooth(), draw_reqtree(), explosion_animation(), nuke_animation(), put_drawn_sprites(), put_nuke_mushroom_pixmaps(), put_spaceship(), put_unit_city_overlays(), and show_full_citybar().

◆ canvas_put_sprite_full_scaled()

void canvas_put_sprite_full_scaled ( struct canvas pcanvas,
int  canvas_x,
int  canvas_y,
int  canvas_w,
int  canvas_h,
struct sprite sprite 
)

Draw a full sprite onto the canvas, scaled to the canvas size.

Definition at line 157 of file canvas.c.

◆ canvas_put_text()

void canvas_put_text ( struct canvas pcanvas,
int  canvas_x,
int  canvas_y,
enum client_font  font,
struct color pcolor,
const char text 
)

Draw the text onto the canvas in the given color and font. The canvas position does not account for the ascent of the text; this function must take care of this manually. The text will not be NULL but may be empty. Supplied canvas_x/y are prior to any canvas zoom.

Definition at line 368 of file canvas.c.

◆ canvas_set_zoom()

void canvas_set_zoom ( struct canvas store,
float  zoom 
)

Set canvas zoom for future drawing operations.

Definition at line 53 of file canvas.c.

Referenced by map_canvas_resized().

◆ get_text_size()

void get_text_size ( int width,
int height,
enum client_font  font,
const char text 
)

Return the size of the given text in the given font. This size should include the ascent and descent of the text. Either of width or height may be NULL in which case those values simply shouldn't be filled out.

Definition at line 341 of file canvas.c.

Referenced by research_diagram::create_tooltip_help(), draw_reqtree(), load_gfxnumber(), node_rectangle_minimum_size(), show_full_citybar(), show_small_citybar(), and show_tile_label().

◆ has_zoom_support()

bool has_zoom_support ( void  )

This gui has zoom support.

Definition at line 61 of file canvas.c.

Referenced by set_client_page_callback().

◆ surface_put_text()

void surface_put_text ( cairo_t cr,
int  x,
int  y,
float  zoom,
enum client_font  font,
struct color pcolor,
const char text 
)

Draw the text onto the surface in the given color and font. The position does not account for the ascent of the text; this function must take care of this manually. The text may not be NULL but may be empty.

Definition at line 396 of file canvas.c.

Referenced by canvas_put_text(), and load_gfxnumber().

Variable Documentation

◆ [struct]

struct { ... } fonts[FONT_COUNT]
Initial value:
= {
}
PangoFontDescription * city_productions_style
Definition gui_main.c:134
PangoFontDescription * city_names_style
Definition gui_main.c:133
PangoFontDescription * reqtree_text_style
Definition gui_main.c:135
#define TRUE
Definition support.h:46
#define FALSE
Definition support.h:47

◆ layout

PangoLayout* layout
static

◆ shadowed

bool shadowed

Definition at line 328 of file canvas.c.

Referenced by surface_put_text().

◆ styles

Definition at line 327 of file canvas.c.