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// SPDX-License-Identifier: GPL-2.0-or-later
/** @file
* @brief Color palette widget
*/
/* Authors:
* Michael Kowalski
*
* Copyright (C) 2021 Michael Kowalski
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
#ifndef SEEN_COLOR_PALETTE_H
#define SEEN_COLOR_PALETTE_H
#include <gtkmm/bin.h>
#include <gtkmm/builder.h>
#include <gtkmm/button.h>
#include <gtkmm/flowbox.h>
#include <gtkmm/scrolledwindow.h>
#include <gtkmm/menu.h>
#include <vector>
namespace Inkscape {
namespace UI {
namespace Widget {
class ColorPalette : public Gtk::Bin {
public:
ColorPalette();
~ColorPalette() override;
struct rgb_t { double r; double g; double b; };
struct palette_t { Glib::ustring name; std::vector<rgb_t> colors; };
// set colors presented in a palette
void set_colors(const std::vector<Gtk::Widget*>& swatches);
// list of palettes to present in the menu
void set_palettes(const std::vector<palette_t>& palettes);
// enable compact mode (true) with mini-scroll buttons, or normal mode (false) with regular scrollbars
void set_compact(bool compact);
void set_tile_size(int size_px);
void set_tile_border(int border_px);
void set_rows(int rows);
void set_aspect(double aspect);
// show horizontal scrollbar when only 1 row is set
void enable_scrollbar(bool show);
// allow tile stretching (horizontally)
void enable_stretch(bool enable);
int get_tile_size() const;
int get_tile_border() const;
int get_rows() const;
double get_aspect() const;
bool is_scrollbar_enabled() const;
bool is_stretch_enabled() const;
void set_selected(const Glib::ustring& name);
sigc::signal<void, Glib::ustring>& get_palette_selected_signal();
sigc::signal<void>& get_settings_changed_signal();
private:
void resize();
void set_up_scrolling();
void free();
void scroll(int dx, int dy, double snap, bool smooth);
void do_scroll(int dx, int dy);
static gboolean scroll_cb(gpointer self);
void _set_tile_size(int size_px);
void _set_tile_border(int border_px);
void _set_rows(int rows);
void _set_aspect(double aspect);
void _enable_scrollbar(bool show);
void _enable_stretch(bool enable);
static gboolean check_scrollbar(gpointer self);
void update_checkbox();
void update_stretch();
int get_tile_size(bool horz) const;
int get_tile_width() const;
int get_tile_height() const;
int get_palette_height() const;
Glib::RefPtr<Gtk::Builder> _builder;
Gtk::FlowBox& _flowbox;
Gtk::ScrolledWindow& _scroll;
Gtk::FlowBox& _scroll_btn;
Gtk::Button& _scroll_up;
Gtk::Button& _scroll_down;
Gtk::Button& _scroll_left;
Gtk::Button& _scroll_right;
Gtk::Menu& _menu;
int _size = 10;
int _border = 0;
int _rows = 1;
double _aspect = 0.0;
int _count = 1;
bool _compact = true;
sigc::signal<void, Glib::ustring> _signal_palette_selected;
sigc::signal<void> _signal_settings_changed;
bool _in_update = false;
guint _active_timeout = 0;
bool _force_scrollbar = false;
bool _stretch_tiles = false;
double _scroll_step = 0.0; // smooth scrolling step
double _scroll_final = 0.0; // smooth scroll final value
};
}}} // namespace
#endif // SEEN_COLOR_PALETTE_H
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