Drawlayer widget helpers (picker, swatch, color history). More...

#include "iop/drawlayer/widgets.h"
#include "iop/drawlayer/paint.h"
#include "gui/gtk.h"
#include <float.h>
#include <math.h>
#include <string.h>

Include dependency graph for widgets.c:

Data Structures
struct	dt_drawlayer_widgets_t
	Runtime state for drawlayer custom color widgets. More...

Macros
#define	DT_DRAWLAYER_PICKER_U_MAX 0.70710678f

#define	DT_DRAWLAYER_PICKER_V_MAX 0.81649658f

#define	DT_DRAWLAYER_PICKER_C_MAX 0.81649658f

Typedefs
typedef enum dt_drawlayer_color_drag_mode_t	dt_drawlayer_color_drag_mode_t
	Active drag target in picker UI.

Enumerations
enum	dt_drawlayer_color_drag_mode_t { DT_DRAWLAYER_COLOR_DRAG_NONE = 0 , DT_DRAWLAYER_COLOR_DRAG_DISC = 1 , DT_DRAWLAYER_COLOR_DRAG_PLANE = 2 }
	Active drag target in picker UI. More...

Functions
static float	_clamp01 (const float value)
	Clamp scalar to [0,1].

static gboolean	_display_rgb_equal (const float a[3], const float b[3])
	Compare display-RGB triplets with tiny epsilon tolerance.

static void	_picker_update_polar_from_uv (dt_drawlayer_widgets_t *widgets)
	Update hue/chroma from current U/V components.

static void	_picker_update_uv_from_polar (dt_drawlayer_widgets_t *widgets)
	Update U/V from current hue/chroma components.

static int	_picker_project_opponent_to_display_rgb (const float m, const float u, const float v, float display_rgb[3])
	Project opponent-space color to display RGB; fail when out of gamut.

static float	_picker_max_chroma_for_m_hue (const float m, const float hue)
	Compute max reachable chroma at given lightness/hue within display gamut.

static void	_picker_clamp_state_to_gamut (dt_drawlayer_widgets_t *widgets)
	Clamp picker state so projected display RGB always remains valid.

static void	_sync_picker_from_display_rgb (dt_drawlayer_widgets_t *widgets, const float display_rgb[3])
	Initialize picker opponent coordinates from display RGB color.

static void	_clear_color_picker_surface (dt_drawlayer_widgets_t *widgets)
	Destroy cached picker surface and reset cache metadata.

static void	_clear_profile_surface (dt_drawlayer_widgets_t *widgets)
	Destroy cached brush-profile preview surface and reset cache metadata.

static void	_brush_profile_geometry (const GtkWidget widget, float x, float y, float width, float height, float gap, int *cell_count)
	Compute profile-row geometry inside widget.

static gboolean	_brush_profile_cell_rect (const GtkWidget widget, const int index, float x, float y, float width, float *height)
	Compute one profile-cell rectangle.

static uint8_t	_linear_channel_to_u8 (const float x)
	Convert linear float channel to display-encoded 8-bit channel.

static void	_render_brush_profile_cell (unsigned char dst, const int stride, const int width, const int height, float rgba_scratch, const dt_drawlayer_widgets_t *widgets, const int shape)
	Render one brush preview cell into ARGB8 memory.

static void	_color_picker_geometry (const GtkWidget widget, float uv_x, float uv_y, float uv_size, float plane_x, float plane_y, float plane_w, float plane_h)
	Compute picker-disc and value/chroma-plane geometry inside widget.

static float	_color_picker_hit_margin (void)
	Hit-margin in device-independent pixels for drag continuity.

static gboolean	_rect_contains_with_margin (const float x, const float y, const float rx, const float ry, const float rw, const float rh, const float margin)
	Rectangle hit-test with configurable margin expansion.

dt_drawlayer_widgets_t *	dt_drawlayer_widgets_init (void)
	Allocate and initialize widget runtime state.

void	dt_drawlayer_widgets_cleanup (dt_drawlayer_widgets_t **widgets)
	Free widget runtime state and owned cairo resources.

void	dt_drawlayer_widgets_set_display_color (dt_drawlayer_widgets_t *widgets, const float display_rgb[3])
	Set current color and synchronize picker internals.

gboolean	dt_drawlayer_widgets_get_display_color (const dt_drawlayer_widgets_t *widgets, float display_rgb[3])
	Get current color projected to display RGB.

void	dt_drawlayer_widgets_mark_picker_dirty (dt_drawlayer_widgets_t *widgets)
	Mark picker surface dirty for regeneration on next draw.

void	dt_drawlayer_widgets_set_color_history (dt_drawlayer_widgets_t *widgets, const float history[DT_DRAWLAYER_COLOR_HISTORY_COUNT][3], const gboolean valid[DT_DRAWLAYER_COLOR_HISTORY_COUNT])
	Replace full color-history content and validity flags.

void	dt_drawlayer_widgets_get_color_history (const dt_drawlayer_widgets_t *widgets, float history[DT_DRAWLAYER_COLOR_HISTORY_COUNT][3], gboolean valid[DT_DRAWLAYER_COLOR_HISTORY_COUNT])
	Copy full color-history content and validity flags out.

gboolean	dt_drawlayer_widgets_push_color_history (dt_drawlayer_widgets_t *widgets, const float display_rgb[3])
	Push one color to history head if different from current head.

gboolean	dt_drawlayer_widgets_update_from_picker_position (dt_drawlayer_widgets_t widgets, GtkWidget widget, float x, float y, float display_rgb[3])
	Update picker state from mouse position and return selected color.

gboolean	dt_drawlayer_widgets_finish_picker_drag (dt_drawlayer_widgets_t *widgets, float display_rgb[3])
	End picker drag mode and optionally output current color.

gboolean	dt_drawlayer_widgets_is_picker_dragging (const dt_drawlayer_widgets_t *widgets)
	Tell whether picker drag interaction is currently active.

gboolean	dt_drawlayer_widgets_pick_history_color (const dt_drawlayer_widgets_t widgets, GtkWidget widget, float x, float y, float display_rgb[3])
	Pick one history swatch color from widget coordinates.

gboolean	dt_drawlayer_widgets_draw_picker (dt_drawlayer_widgets_t widgets, GtkWidget widget, cairo_t *cr, double pixels_per_dip)
	Draw color picker map, controls and selection markers.

gboolean	dt_drawlayer_widgets_draw_swatch (const dt_drawlayer_widgets_t widgets, GtkWidget widget, cairo_t *cr)
	Draw compact color-history swatch grid.

void	dt_drawlayer_widgets_set_brush_profile_preview (dt_drawlayer_widgets_t *widgets, const float opacity, const float hardness, const float sprinkles, const float sprinkle_size, const float sprinkle_coarseness, const int selected_shape)
	Update cached brush-profile preview parameters and selected profile.

int	dt_drawlayer_widgets_get_brush_profile_selection (const dt_drawlayer_widgets_t *widgets)
	Read currently selected brush profile.

gboolean	dt_drawlayer_widgets_draw_brush_profiles (dt_drawlayer_widgets_t widgets, GtkWidget widget, cairo_t *cr, const double pixels_per_dip)
	Draw selectable row of brush-profile previews.

gboolean	dt_drawlayer_widgets_pick_brush_profile (dt_drawlayer_widgets_t widgets, GtkWidget widget, const float x, const float y, int *shape)
	Hit-test and select one brush profile from the preview row.

Detailed Description

Drawlayer widget helpers (picker, swatch, color history).

Macro Definition Documentation

◆ DT_DRAWLAYER_PICKER_C_MAX

#define DT_DRAWLAYER_PICKER_C_MAX 0.81649658f

◆ DT_DRAWLAYER_PICKER_U_MAX

#define DT_DRAWLAYER_PICKER_U_MAX 0.70710678f

◆ DT_DRAWLAYER_PICKER_V_MAX

#define DT_DRAWLAYER_PICKER_V_MAX 0.81649658f

Typedef Documentation

◆ dt_drawlayer_color_drag_mode_t

typedef enum dt_drawlayer_color_drag_mode_t dt_drawlayer_color_drag_mode_t

Active drag target in picker UI.

Enumeration Type Documentation

◆ dt_drawlayer_color_drag_mode_t

enum dt_drawlayer_color_drag_mode_t

Active drag target in picker UI.

Enumerator
DT_DRAWLAYER_COLOR_DRAG_NONE
DT_DRAWLAYER_COLOR_DRAG_DISC
DT_DRAWLAYER_COLOR_DRAG_PLANE

Function Documentation

◆ _brush_profile_cell_rect()

static gboolean _brush_profile_cell_rect	(	const GtkWidget *	widget,
		const int	index,
		float *	x,
		float *	y,
		float *	width,
		float *	height
	)

static

Compute one profile-cell rectangle.

References _brush_profile_geometry(), FALSE, height, TRUE, width, and x.

Referenced by dt_drawlayer_widgets_draw_brush_profiles(), and dt_drawlayer_widgets_pick_brush_profile().

◆ _brush_profile_geometry()

static void _brush_profile_geometry	(	const GtkWidget *	widget,
		float *	x,
		float *	y,
		float *	width,
		float *	height,
		float *	gap,
		int *	cell_count
	)

static

Compute profile-row geometry inside widget.

References DT_PIXEL_APPLY_DPI, height, width, and x.

Referenced by _brush_profile_cell_rect(), and dt_drawlayer_widgets_draw_brush_profiles().

◆ _clamp01()

static float _clamp01 ( const float value )

inlinestatic

Clamp scalar to [0,1].

References value.

Referenced by _linear_channel_to_u8(), _render_brush_profile_cell(), dt_drawlayer_widgets_draw_picker(), dt_drawlayer_widgets_push_color_history(), dt_drawlayer_widgets_set_brush_profile_preview(), dt_drawlayer_widgets_set_color_history(), and dt_drawlayer_widgets_update_from_picker_position().

◆ _clear_color_picker_surface()

static void _clear_color_picker_surface ( dt_drawlayer_widgets_t * widgets )

static

Destroy cached picker surface and reset cache metadata.

References dt_drawlayer_widgets_t::color_surface, dt_drawlayer_widgets_t::color_surface_dirty, dt_drawlayer_widgets_t::color_surface_height, dt_drawlayer_widgets_t::color_surface_ppd, dt_drawlayer_widgets_t::color_surface_width, and TRUE.

Referenced by dt_drawlayer_widgets_cleanup(), and dt_drawlayer_widgets_draw_picker().

◆ _clear_profile_surface()

static void _clear_profile_surface ( dt_drawlayer_widgets_t * widgets )

static

Destroy cached brush-profile preview surface and reset cache metadata.

References dt_drawlayer_widgets_t::profile_surface, dt_drawlayer_widgets_t::profile_surface_dirty, dt_drawlayer_widgets_t::profile_surface_height, dt_drawlayer_widgets_t::profile_surface_ppd, dt_drawlayer_widgets_t::profile_surface_width, and TRUE.

Referenced by dt_drawlayer_widgets_cleanup(), and dt_drawlayer_widgets_draw_brush_profiles().

◆ _color_picker_geometry()

static void _color_picker_geometry	(	const GtkWidget *	widget,
		float *	uv_x,
		float *	uv_y,
		float *	uv_size,
		float *	plane_x,
		float *	plane_y,
		float *	plane_w,
		float *	plane_h
	)

static

Compute picker-disc and value/chroma-plane geometry inside widget.

References DT_PIXEL_APPLY_DPI, height, size, and width.

Referenced by dt_drawlayer_widgets_draw_picker(), and dt_drawlayer_widgets_update_from_picker_position().

◆ _color_picker_hit_margin()

static float _color_picker_hit_margin ( void )

static

Hit-margin in device-independent pixels for drag continuity.

References darktable, DT_PIXEL_APPLY_DPI, darktable_t::gui, and dt_gui_gtk_t::ppd.

Referenced by dt_drawlayer_widgets_update_from_picker_position().

◆ _display_rgb_equal()

static gboolean _display_rgb_equal	(	const float	a[3],
		const float	b[3]
	)

static

Compare display-RGB triplets with tiny epsilon tolerance.

References a, and b.

Referenced by dt_drawlayer_widgets_push_color_history().

◆ _linear_channel_to_u8()

static uint8_t _linear_channel_to_u8 ( const float x )

inlinestatic

Convert linear float channel to display-encoded 8-bit channel.

References _clamp01(), v, and x.

Referenced by _render_brush_profile_cell().

◆ _picker_clamp_state_to_gamut()

static void _picker_clamp_state_to_gamut ( dt_drawlayer_widgets_t * widgets )

static

Clamp picker state so projected display RGB always remains valid.

References _picker_max_chroma_for_m_hue(), _picker_update_polar_from_uv(), _picker_update_uv_from_polar(), dt_drawlayer_widgets_t::picker_chroma, dt_drawlayer_widgets_t::picker_hue, and dt_drawlayer_widgets_t::picker_m.

Referenced by _sync_picker_from_display_rgb(), and dt_drawlayer_widgets_update_from_picker_position().

◆ _picker_max_chroma_for_m_hue()

static float _picker_max_chroma_for_m_hue	(	const float	m,
		const float	hue
	)

static

Compute max reachable chroma at given lightness/hue within display gamut.

References c, and m.

Referenced by _picker_clamp_state_to_gamut().

◆ _picker_project_opponent_to_display_rgb()

static int _picker_project_opponent_to_display_rgb	(	const float	m,
		const float	u,
		const float	v,
		float	display_rgb[3]
	)

static

Project opponent-space color to display RGB; fail when out of gamut.

References b, g, m, r, and v.

Referenced by dt_drawlayer_widgets_draw_picker(), dt_drawlayer_widgets_finish_picker_drag(), dt_drawlayer_widgets_get_display_color(), and dt_drawlayer_widgets_update_from_picker_position().

◆ _picker_update_polar_from_uv()

static void _picker_update_polar_from_uv ( dt_drawlayer_widgets_t * widgets )

static

Update hue/chroma from current U/V components.

References dt_drawlayer_widgets_t::picker_chroma, dt_drawlayer_widgets_t::picker_hue, dt_drawlayer_widgets_t::picker_u, and dt_drawlayer_widgets_t::picker_v.

Referenced by _picker_clamp_state_to_gamut().

◆ _picker_update_uv_from_polar()

static void _picker_update_uv_from_polar ( dt_drawlayer_widgets_t * widgets )

static

Update U/V from current hue/chroma components.

References dt_drawlayer_widgets_t::picker_chroma, dt_drawlayer_widgets_t::picker_hue, dt_drawlayer_widgets_t::picker_u, and dt_drawlayer_widgets_t::picker_v.

Referenced by _picker_clamp_state_to_gamut().

◆ _rect_contains_with_margin()

static gboolean _rect_contains_with_margin	(	const float	x,
		const float	y,
		const float	rx,
		const float	ry,
		const float	rw,
		const float	rh,
		const float	margin
	)

static

Rectangle hit-test with configurable margin expansion.

References x.

Referenced by dt_drawlayer_widgets_update_from_picker_position().

◆ _render_brush_profile_cell()

static void _render_brush_profile_cell	(	unsigned char *	dst,
		const int	stride,
		const int	width,
		const int	height,
		float *	rgba_scratch,
		const dt_drawlayer_widgets_t *	widgets,
		const int	shape
	)

static

Render one brush preview cell into ARGB8 memory.

References _clamp01(), _linear_channel_to_u8(), DT_DRAWLAYER_BRUSH_MODE_PAINT, dt_drawlayer_brush_rasterize_dab_rgbaf(), height, dt_drawlayer_widgets_t::profile_hardness, dt_drawlayer_widgets_t::profile_opacity, dt_drawlayer_widgets_t::profile_sprinkle_coarseness, dt_drawlayer_widgets_t::profile_sprinkle_size, dt_drawlayer_widgets_t::profile_sprinkles, row, width, x, and dt_drawlayer_brush_dab_t::x.

Referenced by dt_drawlayer_widgets_draw_brush_profiles().

◆ _sync_picker_from_display_rgb()

static void _sync_picker_from_display_rgb	(	dt_drawlayer_widgets_t *	widgets,
		const float	display_rgb[3]
	)

static

Initialize picker opponent coordinates from display RGB color.

References _picker_clamp_state_to_gamut(), dt_drawlayer_widgets_t::picker_m, dt_drawlayer_widgets_t::picker_u, and dt_drawlayer_widgets_t::picker_v.

Referenced by dt_drawlayer_widgets_set_display_color().

◆ dt_drawlayer_widgets_cleanup()

void dt_drawlayer_widgets_cleanup ( dt_drawlayer_widgets_t ** widgets )

Free widget runtime state and owned cairo resources.

Destroy widget runtime state and owned surfaces.

References _clear_color_picker_surface(), _clear_profile_surface(), and dt_free.

Referenced by gui_cleanup().

◆ dt_drawlayer_widgets_draw_brush_profiles()

gboolean dt_drawlayer_widgets_draw_brush_profiles	(	dt_drawlayer_widgets_t *	widgets,
		GtkWidget *	widget,
		cairo_t *	cr,
		const double	pixels_per_dip
	)

Draw selectable row of brush-profile previews.

References _brush_profile_cell_rect(), _brush_profile_geometry(), _clear_profile_surface(), _render_brush_profile_cell(), dt_free, FALSE, height, i, MAX, MIN, dt_drawlayer_widgets_t::profile_selected_shape, dt_drawlayer_widgets_t::profile_surface, dt_drawlayer_widgets_t::profile_surface_dirty, dt_drawlayer_widgets_t::profile_surface_height, dt_drawlayer_widgets_t::profile_surface_ppd, dt_drawlayer_widgets_t::profile_surface_width, TRUE, and width.

Referenced by _brush_profile_draw().

◆ dt_drawlayer_widgets_draw_picker()

gboolean dt_drawlayer_widgets_draw_picker	(	dt_drawlayer_widgets_t *	widgets,
		GtkWidget *	widget,
		cairo_t *	cr,
		double	pixels_per_dip
	)

Draw color picker map, controls and selection markers.

Draw full picker UI (map, marker, history swatches).

Referenced by _color_picker_draw().

◆ dt_drawlayer_widgets_draw_swatch()

gboolean dt_drawlayer_widgets_draw_swatch	(	const dt_drawlayer_widgets_t *	widgets,
		GtkWidget *	widget,
		cairo_t *	cr
	)

Draw compact color-history swatch grid.

Draw compact current-color swatch widget.

References dt_drawlayer_widgets_t::color_history, dt_drawlayer_widgets_t::color_history_valid, DT_DRAWLAYER_COLOR_HISTORY_COLS, DT_DRAWLAYER_COLOR_HISTORY_COUNT, DT_DRAWLAYER_COLOR_HISTORY_ROWS, DT_PIXEL_APPLY_DPI, FALSE, height, i, MAX, row, width, and x.

Referenced by _color_swatch_draw().

◆ dt_drawlayer_widgets_finish_picker_drag()

gboolean dt_drawlayer_widgets_finish_picker_drag	(	dt_drawlayer_widgets_t *	widgets,
		float	display_rgb[3]
	)

End picker drag mode and optionally output current color.

End picker drag and return final selected color.

References _picker_project_opponent_to_display_rgb(), DT_DRAWLAYER_COLOR_DRAG_NONE, FALSE, dt_drawlayer_widgets_t::picker_drag_mode, dt_drawlayer_widgets_t::picker_m, dt_drawlayer_widgets_t::picker_u, and dt_drawlayer_widgets_t::picker_v.

Referenced by _color_picker_button_release().

◆ dt_drawlayer_widgets_get_brush_profile_selection()

int dt_drawlayer_widgets_get_brush_profile_selection ( const dt_drawlayer_widgets_t * widgets )

Read currently selected brush profile.

References DT_DRAWLAYER_BRUSH_SHAPE_LINEAR, and dt_drawlayer_widgets_t::profile_selected_shape.

Referenced by _sync_params_from_gui().

◆ dt_drawlayer_widgets_get_color_history()

void dt_drawlayer_widgets_get_color_history	(	const dt_drawlayer_widgets_t *	widgets,
		float	history[DT_DRAWLAYER_COLOR_HISTORY_COUNT][3],
		gboolean	valid[DT_DRAWLAYER_COLOR_HISTORY_COUNT]
	)

Copy full color-history content and validity flags out.

References dt_drawlayer_widgets_t::color_history, dt_drawlayer_widgets_t::color_history_valid, DT_DRAWLAYER_COLOR_HISTORY_COUNT, and i.

Referenced by _store_color_history().

◆ dt_drawlayer_widgets_get_display_color()

gboolean dt_drawlayer_widgets_get_display_color	(	const dt_drawlayer_widgets_t *	widgets,
		float	display_rgb[3]
	)

Get current color projected to display RGB.

Get current display RGB color.

References _picker_project_opponent_to_display_rgb(), FALSE, dt_drawlayer_widgets_t::picker_m, dt_drawlayer_widgets_t::picker_u, and dt_drawlayer_widgets_t::picker_v.

◆ dt_drawlayer_widgets_init()

dt_drawlayer_widgets_t * dt_drawlayer_widgets_init ( void )

Allocate and initialize widget runtime state.

References dt_drawlayer_widgets_t::color_surface_dirty, DT_DRAWLAYER_BRUSH_SHAPE_LINEAR, DT_DRAWLAYER_COLOR_DRAG_NONE, dt_drawlayer_widgets_t::picker_drag_mode, dt_drawlayer_widgets_t::profile_hardness, dt_drawlayer_widgets_t::profile_opacity, dt_drawlayer_widgets_t::profile_selected_shape, dt_drawlayer_widgets_t::profile_sprinkle_coarseness, dt_drawlayer_widgets_t::profile_sprinkle_size, dt_drawlayer_widgets_t::profile_surface_dirty, and TRUE.

Referenced by gui_init().

◆ dt_drawlayer_widgets_is_picker_dragging()

gboolean dt_drawlayer_widgets_is_picker_dragging ( const dt_drawlayer_widgets_t * widgets )

Tell whether picker drag interaction is currently active.

Query whether picker drag is currently active.

References DT_DRAWLAYER_COLOR_DRAG_NONE, and dt_drawlayer_widgets_t::picker_drag_mode.

Referenced by _color_picker_motion().

◆ dt_drawlayer_widgets_mark_picker_dirty()

void dt_drawlayer_widgets_mark_picker_dirty ( dt_drawlayer_widgets_t * widgets )

Mark picker surface dirty for regeneration on next draw.

Mark picker backing surface dirty for redraw/rebuild.

References dt_drawlayer_widgets_t::color_surface_dirty, and TRUE.

◆ dt_drawlayer_widgets_pick_brush_profile()

gboolean dt_drawlayer_widgets_pick_brush_profile	(	dt_drawlayer_widgets_t *	widgets,
		GtkWidget *	widget,
		const float	x,
		const float	y,
		int *	shape
	)

Hit-test and select one brush profile from the preview row.

References _brush_profile_cell_rect(), DT_DRAWLAYER_BRUSH_SHAPE_LINEAR, DT_DRAWLAYER_BRUSH_SHAPE_SIGMOIDAL, FALSE, i, dt_drawlayer_widgets_t::profile_selected_shape, dt_drawlayer_widgets_t::profile_surface_dirty, TRUE, and x.

Referenced by _brush_profile_button_press().

◆ dt_drawlayer_widgets_pick_history_color()

gboolean dt_drawlayer_widgets_pick_history_color	(	const dt_drawlayer_widgets_t *	widgets,
		GtkWidget *	widget,
		float	x,
		float	y,
		float	display_rgb[3]
	)

Pick one history swatch color from widget coordinates.

Hit-test and pick color from history swatches.

References dt_drawlayer_widgets_t::color_history, dt_drawlayer_widgets_t::color_history_valid, DT_DRAWLAYER_COLOR_HISTORY_COLS, DT_DRAWLAYER_COLOR_HISTORY_COUNT, DT_DRAWLAYER_COLOR_HISTORY_ROWS, FALSE, height, row, TRUE, width, and x.

Referenced by _color_swatch_button_press().

◆ dt_drawlayer_widgets_push_color_history()

gboolean dt_drawlayer_widgets_push_color_history	(	dt_drawlayer_widgets_t *	widgets,
		const float	display_rgb[3]
	)

Push one color to history head if different from current head.

Push one color in history if it differs from current head.

References _clamp01(), _display_rgb_equal(), dt_drawlayer_widgets_t::color_history, dt_drawlayer_widgets_t::color_history_valid, DT_DRAWLAYER_COLOR_HISTORY_COUNT, FALSE, i, and TRUE.

Referenced by _remember_display_color().

◆ dt_drawlayer_widgets_set_brush_profile_preview()

void dt_drawlayer_widgets_set_brush_profile_preview	(	dt_drawlayer_widgets_t *	widgets,
		const float	opacity,
		const float	hardness,
		const float	sprinkles,
		const float	sprinkle_size,
		const float	sprinkle_coarseness,
		const int	selected_shape
	)

Update cached brush-profile preview parameters and selected profile.

References _clamp01(), DT_DRAWLAYER_BRUSH_SHAPE_LINEAR, DT_DRAWLAYER_BRUSH_SHAPE_SIGMOIDAL, dt_drawlayer_widgets_t::profile_hardness, dt_drawlayer_widgets_t::profile_opacity, dt_drawlayer_widgets_t::profile_selected_shape, dt_drawlayer_widgets_t::profile_sprinkle_coarseness, dt_drawlayer_widgets_t::profile_sprinkle_size, dt_drawlayer_widgets_t::profile_sprinkles, dt_drawlayer_widgets_t::profile_surface_dirty, and TRUE.

Referenced by _sync_brush_profile_preview_widget().

◆ dt_drawlayer_widgets_set_color_history()

void dt_drawlayer_widgets_set_color_history	(	dt_drawlayer_widgets_t *	widgets,
		const float	history[DT_DRAWLAYER_COLOR_HISTORY_COUNT][3],
		const gboolean	valid[DT_DRAWLAYER_COLOR_HISTORY_COUNT]
	)

Replace full color-history content and validity flags.

References _clamp01(), dt_drawlayer_widgets_t::color_history, dt_drawlayer_widgets_t::color_history_valid, DT_DRAWLAYER_COLOR_HISTORY_COUNT, and i.

Referenced by _load_color_history().

◆ dt_drawlayer_widgets_set_display_color()

void dt_drawlayer_widgets_set_display_color	(	dt_drawlayer_widgets_t *	widgets,
		const float	display_rgb[3]
	)

Set current color and synchronize picker internals.

Set current display RGB color and refresh picker state.

References _sync_picker_from_display_rgb(), dt_drawlayer_widgets_t::color_surface_dirty, and TRUE.

Referenced by _apply_display_brush_color(), and _sync_color_picker_from_conf().

◆ dt_drawlayer_widgets_update_from_picker_position()

gboolean dt_drawlayer_widgets_update_from_picker_position	(	dt_drawlayer_widgets_t *	widgets,
		GtkWidget *	widget,
		float	x,
		float	y,
		float	display_rgb[3]
	)

Update picker state from mouse position and return selected color.

Update picker selection from widget coordinates during drag.

References _clamp01(), _color_picker_geometry(), _color_picker_hit_margin(), _picker_clamp_state_to_gamut(), _picker_project_opponent_to_display_rgb(), _rect_contains_with_margin(), dt_drawlayer_widgets_t::color_surface_dirty, DT_DRAWLAYER_COLOR_DRAG_DISC, DT_DRAWLAYER_COLOR_DRAG_NONE, DT_DRAWLAYER_COLOR_DRAG_PLANE, DT_DRAWLAYER_PICKER_C_MAX, DT_DRAWLAYER_PICKER_U_MAX, DT_DRAWLAYER_PICKER_V_MAX, FALSE, dt_drawlayer_widgets_t::picker_chroma, dt_drawlayer_widgets_t::picker_drag_mode, dt_drawlayer_widgets_t::picker_hue, dt_drawlayer_widgets_t::picker_m, dt_drawlayer_widgets_t::picker_u, dt_drawlayer_widgets_t::picker_v, TRUE, and x.

Referenced by _color_picker_set_from_position().

Data Structures

Macros

Typedefs

Enumerations

Functions

Detailed Description

Macro Definition Documentation

◆ DT_DRAWLAYER_PICKER_C_MAX

◆ DT_DRAWLAYER_PICKER_U_MAX

◆ DT_DRAWLAYER_PICKER_V_MAX

Typedef Documentation

◆ dt_drawlayer_color_drag_mode_t

Enumeration Type Documentation

◆ dt_drawlayer_color_drag_mode_t

Function Documentation

◆ _brush_profile_cell_rect()

◆ _brush_profile_geometry()

◆ _clamp01()

◆ _clear_color_picker_surface()

◆ _clear_profile_surface()

◆ _color_picker_geometry()

◆ _color_picker_hit_margin()

◆ _display_rgb_equal()

◆ _linear_channel_to_u8()

◆ _picker_clamp_state_to_gamut()

◆ _picker_max_chroma_for_m_hue()

◆ _picker_project_opponent_to_display_rgb()

◆ _picker_update_polar_from_uv()

◆ _picker_update_uv_from_polar()

◆ _rect_contains_with_margin()

◆ _render_brush_profile_cell()

◆ _sync_picker_from_display_rgb()

◆ dt_drawlayer_widgets_cleanup()

◆ dt_drawlayer_widgets_draw_brush_profiles()

◆ dt_drawlayer_widgets_draw_picker()

◆ dt_drawlayer_widgets_draw_swatch()

◆ dt_drawlayer_widgets_finish_picker_drag()

◆ dt_drawlayer_widgets_get_brush_profile_selection()

◆ dt_drawlayer_widgets_get_color_history()

◆ dt_drawlayer_widgets_get_display_color()

◆ dt_drawlayer_widgets_init()

◆ dt_drawlayer_widgets_is_picker_dragging()

◆ dt_drawlayer_widgets_mark_picker_dirty()

◆ dt_drawlayer_widgets_pick_brush_profile()

◆ dt_drawlayer_widgets_pick_history_color()

◆ dt_drawlayer_widgets_push_color_history()

◆ dt_drawlayer_widgets_set_brush_profile_preview()

◆ dt_drawlayer_widgets_set_color_history()

◆ dt_drawlayer_widgets_set_display_color()

◆ dt_drawlayer_widgets_update_from_picker_position()