x_grid.c File Reference

#include <config.h>
#include <math.h>
#include "gschem.h"

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Defines
#define	DOTS_POINTS_ARRAY_SIZE   5000
#define	DOTS_VARIABLE_MODE_SPACING   30
#define	MESH_COARSE_GRID_MULTIPLIER   5
Functions
static int	query_dots_grid_spacing (GSCHEM_TOPLEVEL *w_current)
	Query the spacing in world coordinates at which the dots grid is drawn.
static void	draw_dots_grid_region (GSCHEM_TOPLEVEL *w_current, int x, int y, int width, int height)
	Draw an area of the screen with a dotted grid pattern.
static void	draw_mesh (GSCHEM_TOPLEVEL *w_current, int color, int x_start, int y_start, int x_end, int y_end, int incr, int coarse_mult)
	Helper function for draw_mesh_grid_regin.
static int	query_mesh_grid_spacing (GSCHEM_TOPLEVEL *w_current)
	Query the spacing in world coordinates at which the mesh grid is drawn.
static void	draw_mesh_grid_region (GSCHEM_TOPLEVEL *w_current, int x, int y, int width, int height)
	Draw an area of the screen with a mesh grid pattern.
void	x_grid_draw_region (GSCHEM_TOPLEVEL *w_current, int x, int y, int width, int height)
	Draw an area of the screen with the current grid pattern.
int	x_grid_query_drawn_spacing (GSCHEM_TOPLEVEL *w_current)
	Query the spacing in world coordinates at which the grid is drawn.
void	x_draw_tiles (GSCHEM_TOPLEVEL *w_current)

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Define Documentation

#define DOTS_POINTS_ARRAY_SIZE   5000

Definition at line 33 of file x_grid.c.

#define DOTS_VARIABLE_MODE_SPACING   30

Definition at line 34 of file x_grid.c.

#define MESH_COARSE_GRID_MULTIPLIER   5

Definition at line 36 of file x_grid.c.

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Function Documentation

static int query_dots_grid_spacing

(

GSCHEM_TOPLEVEL *

w_current

)

[static]

Function Description

Returns the world spacing of the rendered grid, taking into account where the grid drawing code may drop elelments which are too densly packed for a given zoom level.

Parameters:

[in]

w_current

The GSCHEM_TOPLEVEL.

Returns:

The grid spacing in world units of the grid as rendered, or -1 if there are no items drawn.

Definition at line 50 of file x_grid.c.

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static void draw_dots_grid_region	(	GSCHEM_TOPLEVEL *	w_current,
		int	x,
		int	y,
		int	width,
		int	height
	)		[static]

Function Description

Draws the dotted grid pattern over a given region of the screen.

Parameters:

[in]	w_current	The GSCHEM_TOPLEVEL.
[in]	x	The left screen coordinate for the drawing.
[in]	y	The top screen coordinate for the drawing.
[in]	width	The width of the region to draw.
[in]	height	The height of the region to draw.

Definition at line 90 of file x_grid.c.

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static void draw_mesh	(	GSCHEM_TOPLEVEL *	w_current,
		int	color,
		int	x_start,
		int	y_start,
		int	x_end,
		int	y_end,
		int	incr,
		int	coarse_mult
	)		[static]

Definition at line 154 of file x_grid.c.

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static int query_mesh_grid_spacing

(

GSCHEM_TOPLEVEL *

w_current

)

[static]

Function Description

Returns the world spacing of the rendered grid, taking into account where the grid drawing code may drop elelments which are too densly packed for a given zoom level.

Parameters:

[in]

w_current

The GSCHEM_TOPLEVEL.

Returns:

The grid spacing in world units of the grid as rendered, or -1 if there are no items drawn.

Definition at line 227 of file x_grid.c.

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static void draw_mesh_grid_region	(	GSCHEM_TOPLEVEL *	w_current,
		int	x,
		int	y,
		int	width,
		int	height
	)		[static]

Function Description

Draws the mesh grid pattern over a given region of the screen.

Parameters:

[in]	w_current	The GSCHEM_TOPLEVEL.
[in]	x	The left screen coordinate for the drawing.
[in]	y	The top screen coordinate for the drawing.
[in]	width	The width of the region to draw.
[in]	height	The height of the region to draw.

Definition at line 260 of file x_grid.c.

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void x_grid_draw_region	(	GSCHEM_TOPLEVEL *	w_current,
		int	x,
		int	y,
		int	width,
		int	height
	)

Function Description

Draws the desired grid pattern over a given region of the screen.

Parameters:

[in]	w_current	The GSCHEM_TOPLEVEL.
[in]	x	The left screen coordinate for the drawing.
[in]	y	The top screen coordinate for the drawing.
[in]	width	The width of the region to draw.
[in]	height	The height of the region to draw.

Definition at line 301 of file x_grid.c.

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int x_grid_query_drawn_spacing

(

GSCHEM_TOPLEVEL *

w_current

)

Function Description

Returns the world spacing of the rendered grid, taking into account where the grid drawing code may drop elelments which are too densly packed for a given zoom level.

Parameters:

[in]

w_current

The GSCHEM_TOPLEVEL.

Returns:

The grid spacing in world units of the grid as rendered, or -1 if there are no items drawn.

Definition at line 335 of file x_grid.c.

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void x_draw_tiles

(

GSCHEM_TOPLEVEL *

w_current

)

Todo:

Finish function documentation!!!

Function Description

Definition at line 351 of file x_grid.c.

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