draw.c File Reference

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Functions
void	draw_cairo_line_to (cairo_t *cairoTarget, gdouble x, gdouble y, gboolean adjustByHalf, gboolean pixelOutput)
void	draw_cairo_move_to (cairo_t *cairoTarget, gdouble x, gdouble y, gboolean oddWidth, gboolean pixelOutput)
void	draw_cairo_translate_adjust (cairo_t *cairoTarget, gdouble x, gdouble y, gboolean pixelOutput)
static gboolean	draw_net_is_in_selection_buffer_remove (gerbv_net_t *net, gerbv_selection_info_t *selectionInfo, gboolean remove)
static void	gerbv_draw_circle (cairo_t *cairoTarget, gdouble diameter)
static void	gerbv_draw_rectangle (cairo_t *cairoTarget, gdouble width, gdouble height, gboolean pixelOutput)
static void	gerbv_draw_oblong (cairo_t *cairoTarget, gdouble width, gdouble height)
static void	draw_cairo_cross (cairo_t *cairoTarget, gdouble xc, gdouble yc, gdouble r)
static void	draw_render_block_nets (cairo_t *cairoTarget, gerbv_image_t *image, gerbv_net_t *block_netlist, gerbv_net_t *flash_net, enum draw_mode drawMode, gerbv_selection_info_t *selectionInfo, gboolean pixelOutput, gdouble pixelWidth, gdouble lineWidth, cairo_operator_t drawOperatorClear, cairo_operator_t drawOperatorDark)

Detailed Description

Cairo rendering functions and the related selection calculating functions.

Definition in file draw.c.

Function Documentation

draw_cairo_cross()

static void draw_cairo_cross ( cairo_t *  cairoTarget, gdouble  xc, gdouble  yc, gdouble  r  )

static

Draw Cairo cross.

Parameters

xc	Cross center x coordinate.
yc	Cross center y coordinate.
r	Cross half size.

Definition at line 881 of file draw.c.

draw_cairo_line_to()

void draw_cairo_line_to	(	cairo_t *	cairoTarget,
		gdouble	x,
		gdouble	y,
		gboolean	adjustByHalf,
		gboolean	pixelOutput
	)

Draw Cairo line from current coordinates.

Parameters

x	End of line x coordinate.
y	End of line y coordinate.
adjustByHalf	Increase x and y by 0.5.
pixelOutput	Round x and y coordinates to pixels.

Definition at line 55 of file draw.c.

draw_cairo_move_to()

void draw_cairo_move_to	(	cairo_t *	cairoTarget,
		gdouble	x,
		gdouble	y,
		gboolean	oddWidth,
		gboolean	pixelOutput
	)

Move Cairo coordinates.

Parameters

x	Move to x coordinate.
y	Move to y coordinate.
oddWidth	Increase x and y by 0.5.
pixelOutput	Round x and y coordinates to pixels.

Definition at line 78 of file draw.c.

draw_cairo_translate_adjust()

void draw_cairo_translate_adjust	(	cairo_t *	cairoTarget,
		gdouble	x,
		gdouble	y,
		gboolean	pixelOutput
	)

Cairo translate user-space origin.

Parameters

x	The x coordinate.
y	The y coordinate.
pixelOutput	Round x and y coordinates to pixels.

Definition at line 100 of file draw.c.

draw_net_is_in_selection_buffer_remove()

static gboolean draw_net_is_in_selection_buffer_remove ( gerbv_net_t *  net, gerbv_selection_info_t *  selectionInfo, gboolean  remove  )

static

Check if net is in selection buffer and possibly deselect it.

Returns

TRUE if net is selected, FALSE if not selected.

Parameters

net	Checked net.
selectionInfo	Selection buffer.
remove	TRUE for deselect net.

Definition at line 120 of file draw.c.

draw_render_block_nets()

static void draw_render_block_nets ( cairo_t *  cairoTarget, gerbv_image_t *  image, gerbv_net_t *  block_netlist, gerbv_net_t *  flash_net, enum draw_mode  drawMode, gerbv_selection_info_t *  selectionInfo, gboolean  pixelOutput, gdouble  pixelWidth, gdouble  lineWidth, cairo_operator_t  drawOperatorClear, cairo_operator_t  drawOperatorDark  )

static

Render all nets within a block aperture's net list.

Handles linear draws, arc strokes, rectangle draw strokes, polygon regions (PAREA), and flash sub-types (circle, rect, oval, polygon, macro, and nested blocks via recursion).

Parameters

cairoTarget	Cairo context to render into.
image	The Gerber image (for aperture table lookup).
block_netlist	Head of the block's net list (iteration starts at ->next).
flash_net	The outer flash net (used by draw_stroke/draw_fill for selection tracking).
drawMode	Current draw mode (normal / selections / etc.).
selectionInfo	Selection state for highlight rendering.
pixelOutput	TRUE when rendering to a pixel surface.
pixelWidth	Width of one pixel in user coordinates.
lineWidth	Default line width from enclosing scope.
drawOperatorClear	Cairo operator for clear polarity primitives.
drawOperatorDark	Cairo operator for dark polarity primitives.

Definition at line 950 of file draw.c.

References GERBV_INTERPOLATION_PAREA_START, gerbv_net::interpolation, and gerbv_net::next.

gerbv_draw_circle()

static void gerbv_draw_circle ( cairo_t *  cairoTarget, gdouble  diameter  )

static

Draw the circle centered at current Cairo coordinates.

Parameters

diameter

Circle diameter.

Definition at line 231 of file draw.c.

Referenced by gerbv_draw_oblong().

gerbv_draw_oblong()

static void gerbv_draw_oblong ( cairo_t *  cairoTarget, gdouble  width, gdouble  height  )

static

Draw the oblong centered at current Cairo coordinates.

Parameters

width	Width of the oblong.
height	Height of the oblong.

Definition at line 264 of file draw.c.

References gerbv_draw_circle().

gerbv_draw_rectangle()

static void gerbv_draw_rectangle ( cairo_t *  cairoTarget, gdouble  width, gdouble  height, gboolean  pixelOutput  )

static

Draw the rectangle centered at current Cairo coordinates.

Parameters

width	Width of the rectangle.
height	Height of the rectangle.
pixelOutput	Round width and height to pixels.

Definition at line 244 of file draw.c.