godot/scene/gui/color_picker.h
Markus Sauermann 888add8418 Fix Color Picking
With the 4.x-introduction of Windows the previous method for
color picking was no longer working.

This PR uses the following approach to reintroduce color-picking.
When the Color-Picking-Button is pressed, a quasi-screenshot of the
Window-content is created and displayed in a new Popup-Window.
This new Window allows selecting colors by Mouse-Click.
A Preview of the targeted Color is also displayed.
2023-02-09 01:00:54 +01:00

358 lines
11 KiB
C++

/**************************************************************************/
/* color_picker.h */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#ifndef COLOR_PICKER_H
#define COLOR_PICKER_H
#include "scene/gui/aspect_ratio_container.h"
#include "scene/gui/box_container.h"
#include "scene/gui/button.h"
#include "scene/gui/control.h"
#include "scene/gui/grid_container.h"
#include "scene/gui/label.h"
#include "scene/gui/line_edit.h"
#include "scene/gui/menu_button.h"
#include "scene/gui/option_button.h"
#include "scene/gui/panel.h"
#include "scene/gui/popup.h"
#include "scene/gui/separator.h"
#include "scene/gui/slider.h"
#include "scene/gui/spin_box.h"
#include "scene/gui/texture_rect.h"
class ColorMode;
class ColorModeRGB;
class ColorModeHSV;
class ColorModeRAW;
class ColorModeOKHSL;
class ColorPresetButton : public BaseButton {
GDCLASS(ColorPresetButton, BaseButton);
Color preset_color;
protected:
void _notification(int);
public:
void set_preset_color(const Color &p_color);
Color get_preset_color() const;
ColorPresetButton(Color p_color, int p_size);
~ColorPresetButton();
};
class ColorPicker : public VBoxContainer {
GDCLASS(ColorPicker, VBoxContainer);
public:
enum ColorModeType {
MODE_RGB,
MODE_HSV,
MODE_RAW,
MODE_OKHSL,
MODE_MAX
};
enum PickerShapeType {
SHAPE_HSV_RECTANGLE,
SHAPE_HSV_WHEEL,
SHAPE_VHS_CIRCLE,
SHAPE_OKHSL_CIRCLE,
SHAPE_NONE,
SHAPE_MAX
};
static const int SLIDER_COUNT = 4;
private:
static Ref<Shader> wheel_shader;
static Ref<Shader> circle_shader;
static Ref<Shader> circle_ok_color_shader;
static List<Color> preset_cache;
static List<Color> recent_preset_cache;
#ifdef TOOLS_ENABLED
Object *editor_settings = nullptr;
#endif
int current_slider_count = SLIDER_COUNT;
static const int MODE_BUTTON_COUNT = 3;
bool slider_theme_modified = true;
Vector<ColorMode *> modes;
Popup *picker_window = nullptr;
TextureRect *picker_texture_rect = nullptr;
Panel *picker_preview = nullptr;
Label *picker_preview_label = nullptr;
Ref<StyleBoxFlat> picker_preview_style_box;
Color picker_color;
Control *uv_edit = nullptr;
Control *w_edit = nullptr;
AspectRatioContainer *wheel_edit = nullptr;
MarginContainer *wheel_margin = nullptr;
Ref<ShaderMaterial> wheel_mat;
Ref<ShaderMaterial> circle_mat;
Control *wheel = nullptr;
Control *wheel_uv = nullptr;
TextureRect *sample = nullptr;
GridContainer *preset_container = nullptr;
HBoxContainer *recent_preset_hbc = nullptr;
Button *btn_add_preset = nullptr;
Button *btn_pick = nullptr;
Button *btn_preset = nullptr;
Button *btn_recent_preset = nullptr;
PopupMenu *shape_popup = nullptr;
PopupMenu *mode_popup = nullptr;
MenuButton *btn_shape = nullptr;
HBoxContainer *mode_hbc = nullptr;
HBoxContainer *sample_hbc = nullptr;
GridContainer *slider_gc = nullptr;
HBoxContainer *hex_hbc = nullptr;
MenuButton *btn_mode = nullptr;
Button *mode_btns[MODE_BUTTON_COUNT];
Ref<ButtonGroup> mode_group = nullptr;
ColorPresetButton *selected_recent_preset = nullptr;
Ref<ButtonGroup> preset_group;
Ref<ButtonGroup> recent_preset_group;
OptionButton *mode_option_button = nullptr;
HSlider *sliders[SLIDER_COUNT];
SpinBox *values[SLIDER_COUNT];
Label *labels[SLIDER_COUNT];
Button *text_type = nullptr;
LineEdit *c_text = nullptr;
HSlider *alpha_slider = nullptr;
SpinBox *alpha_value = nullptr;
Label *alpha_label = nullptr;
bool edit_alpha = true;
Size2i ms;
bool text_is_constructor = false;
PickerShapeType current_shape = SHAPE_HSV_RECTANGLE;
ColorModeType current_mode = MODE_RGB;
bool colorize_sliders = true;
const int PRESET_COLUMN_COUNT = 9;
int prev_preset_size = 0;
int prev_rencet_preset_size = 0;
List<Color> presets;
List<Color> recent_presets;
Color color;
Color old_color;
bool display_old_color = false;
bool deferred_mode_enabled = false;
bool updating = true;
bool changing_color = false;
bool spinning = false;
bool can_add_swatches = true;
bool presets_visible = true;
bool color_modes_visible = true;
bool sampler_visible = true;
bool sliders_visible = true;
bool hex_visible = true;
bool line_edit_mouse_release = false;
bool text_changed = false;
float h = 0.0;
float s = 0.0;
float v = 0.0;
Color last_color;
void _copy_color_to_hsv();
void _copy_hsv_to_color();
PickerShapeType _get_actual_shape() const;
void create_slider(GridContainer *gc, int idx);
void _reset_theme();
void _html_submitted(const String &p_html);
void _value_changed(double);
void _update_controls();
void _update_color(bool p_update_sliders = true);
void _update_text_value();
void _text_type_toggled();
void _sample_input(const Ref<InputEvent> &p_event);
void _sample_draw();
void _hsv_draw(int p_which, Control *c);
void _slider_draw(int p_which);
void _uv_input(const Ref<InputEvent> &p_event, Control *c);
void _w_input(const Ref<InputEvent> &p_event);
void _slider_or_spin_input(const Ref<InputEvent> &p_event);
void _line_edit_input(const Ref<InputEvent> &p_event);
void _preset_input(const Ref<InputEvent> &p_event, const Color &p_color);
void _recent_preset_pressed(const bool pressed, ColorPresetButton *p_preset);
void _picker_texture_input(const Ref<InputEvent> &p_event);
void _text_changed(const String &p_new_text);
void _add_preset_pressed();
void _pick_button_pressed();
void _html_focus_exit();
inline int _get_preset_size();
void _add_preset_button(int p_size, const Color &p_color);
void _add_recent_preset_button(int p_size, const Color &p_color);
void _show_hide_preset(const bool &p_is_btn_pressed, Button *p_btn_preset, Container *p_preset_container);
void _update_drop_down_arrow(const bool &p_is_btn_pressed, Button *p_btn_preset);
void _set_mode_popup_value(ColorModeType p_mode);
Variant _get_drag_data_fw(const Point2 &p_point, Control *p_from_control);
bool _can_drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from_control) const;
void _drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from_control);
protected:
void _notification(int);
static void _bind_methods();
public:
#ifdef TOOLS_ENABLED
void set_editor_settings(Object *p_editor_settings);
#endif
HSlider *get_slider(int idx);
Vector<float> get_active_slider_values();
static void init_shaders();
static void finish_shaders();
void add_mode(ColorMode *p_mode);
void set_edit_alpha(bool p_show);
bool is_editing_alpha() const;
int get_preset_size();
void _set_pick_color(const Color &p_color, bool p_update_sliders);
void set_pick_color(const Color &p_color);
Color get_pick_color() const;
void set_old_color(const Color &p_color);
void set_display_old_color(bool p_enabled);
bool is_displaying_old_color() const;
void set_picker_shape(PickerShapeType p_shape);
PickerShapeType get_picker_shape() const;
void add_preset(const Color &p_color);
void add_recent_preset(const Color &p_color);
void erase_preset(const Color &p_color);
void erase_recent_preset(const Color &p_color);
PackedColorArray get_presets() const;
PackedColorArray get_recent_presets() const;
void _update_presets();
void _update_recent_presets();
void _select_from_preset_container(const Color &p_color);
bool _select_from_recent_preset_hbc(const Color &p_color);
void set_color_mode(ColorModeType p_mode);
ColorModeType get_color_mode() const;
void set_colorize_sliders(bool p_colorize_sliders);
bool is_colorizing_sliders() const;
void set_deferred_mode(bool p_enabled);
bool is_deferred_mode() const;
void set_can_add_swatches(bool p_enabled);
bool are_swatches_enabled() const;
void set_presets_visible(bool p_visible);
bool are_presets_visible() const;
void set_modes_visible(bool p_visible);
bool are_modes_visible() const;
void set_sampler_visible(bool p_visible);
bool is_sampler_visible() const;
void set_sliders_visible(bool p_visible);
bool are_sliders_visible() const;
void set_hex_visible(bool p_visible);
bool is_hex_visible() const;
void set_focus_on_line_edit();
ColorPicker();
~ColorPicker();
};
class ColorPickerButton : public Button {
GDCLASS(ColorPickerButton, Button);
// Initialization is now done deferred,
// this improves performance in the inspector as the color picker
// can be expensive to initialize.
PopupPanel *popup = nullptr;
ColorPicker *picker = nullptr;
Color color;
bool edit_alpha = true;
void _about_to_popup();
void _color_changed(const Color &p_color);
void _modal_closed();
virtual void pressed() override;
void _update_picker();
protected:
void _notification(int);
static void _bind_methods();
public:
void set_pick_color(const Color &p_color);
Color get_pick_color() const;
void set_edit_alpha(bool p_show);
bool is_editing_alpha() const;
ColorPicker *get_picker();
PopupPanel *get_popup();
ColorPickerButton(const String &p_text = String());
};
VARIANT_ENUM_CAST(ColorPicker::PickerShapeType);
VARIANT_ENUM_CAST(ColorPicker::ColorModeType);
#endif // COLOR_PICKER_H