draw.h File Reference

#include "common/curve_tools.h"
#include "common/darktable.h"
#include "common/splines.h"
#include "control/conf.h"
#include "develop/develop.h"
#include <cairo.h>
#include <glib.h>
#include <math.h>
#include <stdint.h>
#include <stdlib.h>
#include <gui/gtk.h>

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Data Structures
struct	dt_draw_curve_t

Macros
#define	M_PI   3.141592654

Typedefs
typedef struct dt_draw_curve_t	dt_draw_curve_t

Functions
static void	dt_draw_set_color_overlay (cairo_t *cr, gboolean bright, double alpha)
static void	dt_draw_star (cairo_t *cr, float x, float y, float r1, float r2)
static void	dt_draw_line (cairo_t *cr, float left, float top, float right, float bottom)
static void	dt_draw_grid (cairo_t *cr, const int num, const int left, const int top, const int right, const int bottom)
static float	dt_curve_to_mouse (const float x, const float zoom_factor, const float offset)
static void	dt_draw_grid_zoomed (cairo_t *cr, const int num, const float left, const float top, const float right, const float bottom, const float width, const float height, const float zoom_factor, const float zoom_offset_x, const float zoom_offset_y)
static float	dt_log_scale_axis (const float x, const float base)
static void	dt_draw_loglog_grid (cairo_t *cr, const int num, const int left, const int top, const int right, const int bottom, const float base)
static void	dt_draw_semilog_x_grid (cairo_t *cr, const int num, const int left, const int top, const int right, const int bottom, const float base)
static void	dt_draw_semilog_y_grid (cairo_t *cr, const int num, const int left, const int top, const int right, const int bottom, const float base)
static void	dt_draw_vertical_lines (cairo_t *cr, const int num, const int left, const int top, const int right, const int bottom)
static void	dt_draw_horizontal_lines (cairo_t *cr, const int num, const int left, const int top, const int right, const int bottom)
static dt_draw_curve_t *	dt_draw_curve_new (const float min, const float max, unsigned int type)
static void	dt_draw_curve_destroy (dt_draw_curve_t *c)
static void	dt_draw_curve_set_point (dt_draw_curve_t *c, const int num, const float x, const float y)
static void	dt_draw_curve_smaple_values (dt_draw_curve_t *c, const float min, const float max, const int res, float *x, float *y)
static void	dt_draw_curve_calc_values (dt_draw_curve_t *c, const float min, const float max, const int res, float *x, float *y)
static void	dt_draw_curve_calc_values_V2_nonperiodic (dt_draw_curve_t *c, const float min, const float max, const int res, float *x, float *y)
static void	dt_draw_curve_calc_values_V2_periodic (dt_draw_curve_t *c, const float min, const float max, const int res, float *x, float *y)
static void	dt_draw_curve_calc_values_V2 (dt_draw_curve_t *c, const float min, const float max, const int res, float *x, float *y, const gboolean periodic)
static float	dt_draw_curve_calc_value (dt_draw_curve_t *c, const float x)
static int	dt_draw_curve_add_point (dt_draw_curve_t *c, const float x, const float y)
static void	dt_draw_histogram_8_linxliny (cairo_t *cr, const uint32_t *hist, int32_t channels, int32_t channel)
static void	dt_draw_histogram_8_zoomed (cairo_t *cr, const uint32_t *hist, int32_t channels, int32_t channel, const float zoom_factor, const float zoom_offset_x, const float zoom_offset_y, gboolean linear)
static void	dt_draw_histogram_8_logxliny (cairo_t *cr, const uint32_t *hist, int32_t channels, int32_t channel, float base_log)
static void	dt_draw_histogram_8_logxlogy (cairo_t *cr, const uint32_t *hist, int32_t channels, int32_t channel, float base_log)
static void	dt_draw_histogram_8_linxlogy (cairo_t *cr, const uint32_t *hist, int32_t channels, int32_t channel)
static void	dt_draw_histogram_8_log_base (cairo_t *cr, const uint32_t *hist, int32_t channels, int32_t channel, const gboolean linear, float base_log)
static void	dt_draw_histogram_8 (cairo_t *cr, const uint32_t *hist, int32_t channels, int32_t channel, const gboolean linear)
static void	dt_draw_cairo_to_gdk_pixbuf (uint8_t *data, unsigned int width, unsigned int height)
static void	dt_cairo_perceptual_gradient (cairo_pattern_t *grad, double alpha)
static GdkPixbuf *	dt_draw_paint_to_pixbuf (GtkWidget *widget, const guint pixbuf_size, const int flags, void(*dtgtk_cairo_paint_fct)(cairo_t *cr, gint x, gint y, gint w, gint h, gint flags, void *data))

Macro Definition Documentation

M_PI

#define M_PI   3.141592654

some common drawing routines.

Typedef Documentation

dt_draw_curve_t

typedef struct dt_draw_curve_t dt_draw_curve_t

wrapper around nikon curve.

Function Documentation

dt_cairo_perceptual_gradient()

static void dt_cairo_perceptual_gradient ( cairo_pattern_t *  grad, double  alpha  )

inlinestatic

Referenced by _init_drawing(), and dt_iop_tonecurve_draw().

dt_curve_to_mouse()

static float dt_curve_to_mouse ( const float  x, const float  zoom_factor, const float  offset  )

inlinestatic

Referenced by dt_draw_grid_zoomed().

dt_draw_cairo_to_gdk_pixbuf()

static void dt_draw_cairo_to_gdk_pixbuf ( uint8_t *  data, unsigned int  width, unsigned int  height  )

inlinestatic

transform a data blob from cairo's premultiplied rgba/bgra to GdkPixbuf's un-premultiplied bgra/rgba

References height, and width.

Referenced by _draw_ellipse(), _draw_rectangle(), _get_pixbuf_from_cairo(), _init_image_pin(), _init_place_pin(), _view_map_images_count(), dt_draw_paint_to_pixbuf(), and tree_insert_presets().

dt_draw_curve_add_point()

static int dt_draw_curve_add_point ( dt_draw_curve_t *  c, const float  x, const float  y  )

inlinestatic

Referenced by _area_draw_callback(), _area_draw_callback(), _generate_curve_lut(), commit_params(), compute_curve_lut(), dt_iop_basecurve_draw(), dt_iop_tonecurve_draw(), gui_init(), gui_init(), and init_pipe().

dt_draw_curve_calc_value()

static float dt_draw_curve_calc_value ( dt_draw_curve_t *  c, const float  x  )

inlinestatic

References interpolate_set(), interpolate_val(), MAX, and MIN.

Referenced by _area_button_press_callback(), _area_button_press_callback(), area_button_press(), denoiseprofile_button_press(), dt_iop_basecurve_button_press(), dt_iop_tonecurve_button_press(), get_scales(), lowlight_button_press(), process(), and rawdenoise_button_press().

dt_draw_curve_calc_values()

static void dt_draw_curve_calc_values ( dt_draw_curve_t *  c, const float  min, const float  max, const int  res, float *  x, float *  y  )

inlinestatic

References CurveDataSample(), and dt_draw_curve_smaple_values().

Referenced by _area_draw_callback(), _area_draw_callback(), _generate_curve_lut(), area_draw(), commit_params(), commit_params(), compute_curve_lut(), denoiseprofile_draw(), dt_iop_basecurve_draw(), dt_iop_tonecurve_draw(), lowlight_draw(), and rawdenoise_draw().

dt_draw_curve_calc_values_V2()

static void dt_draw_curve_calc_values_V2 ( dt_draw_curve_t *  c, const float  min, const float  max, const int  res, float *  x, float *  y, const gboolean  periodic  )

inlinestatic

References dt_draw_curve_calc_values_V2_nonperiodic(), and dt_draw_curve_calc_values_V2_periodic().

Referenced by _area_draw_callback(), and commit_params().

dt_draw_curve_calc_values_V2_nonperiodic()

static void dt_draw_curve_calc_values_V2_nonperiodic ( dt_draw_curve_t *  c, const float  min, const float  max, const int  res, float *  x, float *  y  )

inlinestatic

References CurveDataSampleV2(), and dt_draw_curve_smaple_values().

Referenced by dt_draw_curve_calc_values_V2().

dt_draw_curve_calc_values_V2_periodic()

static void dt_draw_curve_calc_values_V2_periodic ( dt_draw_curve_t *  c, const float  min, const float  max, const int  res, float *  x, float *  y  )

inlinestatic

References CurveDataSampleV2Periodic(), and dt_draw_curve_smaple_values().

Referenced by dt_draw_curve_calc_values_V2().

dt_draw_curve_destroy()

static void dt_draw_curve_destroy ( dt_draw_curve_t *  c )

inlinestatic

Referenced by _area_draw_callback(), _area_draw_callback(), _generate_curve_lut(), cleanup_pipe(), commit_params(), compute_curve_lut(), dt_iop_basecurve_draw(), dt_iop_tonecurve_draw(), gui_cleanup(), and gui_cleanup().

dt_draw_curve_new()

static dt_draw_curve_t * dt_draw_curve_new ( const float  min, const float  max, unsigned int  type  )

inlinestatic

References type.

Referenced by _area_draw_callback(), _area_draw_callback(), _generate_curve_lut(), commit_params(), compute_curve_lut(), dt_iop_basecurve_draw(), dt_iop_tonecurve_draw(), gui_init(), gui_init(), and init_pipe().

dt_draw_curve_set_point()

static void dt_draw_curve_set_point ( dt_draw_curve_t *  c, const int  num, const float  x, const float  y  )

inlinestatic

Referenced by _area_draw_callback(), _area_draw_callback(), _generate_curve_lut(), area_draw(), commit_params(), commit_params(), denoiseprofile_draw(), dt_iop_basecurve_draw(), dt_iop_tonecurve_draw(), lowlight_draw(), and rawdenoise_draw().

dt_draw_curve_smaple_values()

static void dt_draw_curve_smaple_values ( dt_draw_curve_t *  c, const float  min, const float  max, const int  res, float *  x, float *  y  )

inlinestatic

Referenced by dt_draw_curve_calc_values(), dt_draw_curve_calc_values_V2_nonperiodic(), and dt_draw_curve_calc_values_V2_periodic().

dt_draw_grid()

static void dt_draw_grid ( cairo_t *  cr, const int  num, const int  left, const int  top, const int  right, const int  bottom  )

inlinestatic

References dt_draw_line(), height, and width.

Referenced by _process_histogram(), _process_waveform(), area_draw(), area_draw(), denoiseprofile_draw(), dt_iop_basecurve_draw(), dt_iop_tonecurve_draw(), dt_iop_tonecurve_draw(), dt_iop_tonecurve_draw(), lowlight_draw(), and rawdenoise_draw().

dt_draw_grid_zoomed()

static void dt_draw_grid_zoomed ( cairo_t *  cr, const int  num, const float  left, const float  top, const float  right, const float  bottom, const float  width, const float  height, const float  zoom_factor, const float  zoom_offset_x, const float  zoom_offset_y  )

inlinestatic

References dt_curve_to_mouse(), dt_draw_line(), height, and width.

Referenced by _area_draw_callback().

dt_draw_histogram_8()

static void dt_draw_histogram_8 ( cairo_t *  cr, const uint32_t *  hist, int32_t  channels, int32_t  channel, const gboolean  linear  )

inlinestatic

References dt_draw_histogram_8_linxliny(), dt_draw_histogram_8_linxlogy(), and linear.

Referenced by _area_draw_callback(), _process_histogram(), dt_iop_levels_area_draw(), and dt_iop_tonecurve_draw().

dt_draw_histogram_8_linxliny()

static void dt_draw_histogram_8_linxliny ( cairo_t *  cr, const uint32_t *  hist, int32_t  channels, int32_t  channel  )

inlinestatic

Referenced by dt_draw_histogram_8().

dt_draw_histogram_8_linxlogy()

static void dt_draw_histogram_8_linxlogy ( cairo_t *  cr, const uint32_t *  hist, int32_t  channels, int32_t  channel  )

inlinestatic

Referenced by dt_draw_histogram_8().

dt_draw_histogram_8_log_base()

static void dt_draw_histogram_8_log_base ( cairo_t *  cr, const uint32_t *  hist, int32_t  channels, int32_t  channel, const gboolean  linear, float  base_log  )

inlinestatic

References dt_draw_histogram_8_logxliny(), dt_draw_histogram_8_logxlogy(), and linear.

Referenced by dt_iop_tonecurve_draw().

dt_draw_histogram_8_logxliny()

static void dt_draw_histogram_8_logxliny ( cairo_t *  cr, const uint32_t *  hist, int32_t  channels, int32_t  channel, float  base_log  )

inlinestatic

Referenced by dt_draw_histogram_8_log_base().

dt_draw_histogram_8_logxlogy()

static void dt_draw_histogram_8_logxlogy ( cairo_t *  cr, const uint32_t *  hist, int32_t  channels, int32_t  channel, float  base_log  )

inlinestatic

Referenced by dt_draw_histogram_8_log_base().

dt_draw_histogram_8_zoomed()

static void dt_draw_histogram_8_zoomed ( cairo_t *  cr, const uint32_t *  hist, int32_t  channels, int32_t  channel, const float  zoom_factor, const float  zoom_offset_x, const float  zoom_offset_y, gboolean  linear  )

inlinestatic

References linear.

Referenced by _area_draw_callback(), and _area_draw_callback().

dt_draw_horizontal_lines()

static void dt_draw_horizontal_lines ( cairo_t *  cr, const int  num, const int  left, const int  top, const int  right, const int  bottom  )

inlinestatic

References height.

Referenced by dt_guides_draw_grid().

dt_draw_line()

static void dt_draw_line ( cairo_t *  cr, float  left, float  top, float  right, float  bottom  )

inlinestatic

Referenced by _draw_line(), dt_draw_grid(), dt_draw_grid_zoomed(), dt_draw_loglog_grid(), dt_draw_semilog_x_grid(), dt_draw_semilog_y_grid(), dt_guides_draw_diagonal_method(), dt_guides_draw_golden_mean(), dt_guides_draw_harmonious_triangles(), dt_guides_draw_metering(), dt_guides_draw_perspective(), and dt_guides_draw_rules_of_thirds().

dt_draw_loglog_grid()

static void dt_draw_loglog_grid ( cairo_t *  cr, const int  num, const int  left, const int  top, const int  right, const int  bottom, const float  base  )

inlinestatic

References dt_draw_line(), dt_log_scale_axis(), height, and width.

Referenced by dt_iop_basecurve_draw(), dt_iop_tonecurve_draw(), and dt_iop_tonecurve_draw().

dt_draw_paint_to_pixbuf()

static GdkPixbuf * dt_draw_paint_to_pixbuf ( GtkWidget *  widget, const guint  pixbuf_size, const int  flags, void(*)(cairo_t *cr, gint x, gint y, gint w, gint h, gint flags, void *data)  dtgtk_cairo_paint_fct  )

inlinestatic

References dt_draw_cairo_to_gdk_pixbuf(), DT_PIXEL_APPLY_DPI, flags, size, and TRUE.

Referenced by _gui_styles_dialog_run(), and dt_gui_hist_dialog_new().

dt_draw_semilog_x_grid()

static void dt_draw_semilog_x_grid ( cairo_t *  cr, const int  num, const int  left, const int  top, const int  right, const int  bottom, const float  base  )

inlinestatic

References dt_draw_line(), dt_log_scale_axis(), height, and width.

Referenced by dt_iop_tonecurve_draw().

dt_draw_semilog_y_grid()

static void dt_draw_semilog_y_grid ( cairo_t *  cr, const int  num, const int  left, const int  top, const int  right, const int  bottom, const float  base  )

inlinestatic

References dt_draw_line(), dt_log_scale_axis(), height, and width.

Referenced by dt_iop_tonecurve_draw().

dt_draw_set_color_overlay()

static void dt_draw_set_color_overlay ( cairo_t *  cr, gboolean  bright, double  alpha  )

inlinestatic

set color based on gui overlay preference

References darktable, darktable_t::gui, dt_gui_gtk_t::overlay_blue, dt_gui_gtk_t::overlay_contrast, dt_gui_gtk_t::overlay_green, and dt_gui_gtk_t::overlay_red.

Referenced by _brush_events_post_expose(), _circle_draw_lines(), _circle_events_post_expose(), _draw_sym(), _ellipse_draw_border(), _ellipse_draw_shape(), _ellipse_events_post_expose(), _gradient_draw_arrow(), _gradient_draw_lines(), _path_events_post_expose(), dt_guides_draw(), dt_guides_draw_grid(), gui_draw_sym(), gui_post_expose(), and gui_post_expose().

dt_draw_star()

static void dt_draw_star ( cairo_t *  cr, float  x, float  y, float  r1, float  r2  )

inlinestatic

draws a rating star

References M_PI.

Referenced by dtgtk_cairo_paint_overlays(), dtgtk_cairo_paint_star(), and dtgtk_cairo_paint_unratestar().

dt_draw_vertical_lines()

static void dt_draw_vertical_lines ( cairo_t *  cr, const int  num, const int  left, const int  top, const int  right, const int  bottom  )

inlinestatic

References width.

Referenced by _area_draw_callback(), dt_guides_draw_grid(), and dt_iop_levels_area_draw().

dt_log_scale_axis()

static float dt_log_scale_axis ( const float  x, const float  base  )

inlinestatic

Referenced by dt_draw_loglog_grid(), dt_draw_semilog_x_grid(), dt_draw_semilog_y_grid(), and dt_iop_tonecurve_draw().