godot/scene/gui/color_picker.cpp

680 lines
20 KiB
C++

/*************************************************************************/
/* color_picker.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2017 Godot Engine contributors (cf. AUTHORS.md) */
/* */
/* 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. */
/*************************************************************************/
#include "color_picker.h"
#include "os/input.h"
#include "os/keyboard.h"
#include "os/os.h"
#include "scene/gui/separator.h"
#include "scene/main/viewport.h"
void update_material(Ref<CanvasItemMaterial> mat, const Color &p_color, float h, float s, float v) {
if (!mat.is_valid())
return;
Ref<Shader> sdr = mat->get_shader();
if (!sdr.is_valid())
return;
mat->set_shader_param("R", p_color.r);
mat->set_shader_param("G", p_color.g);
mat->set_shader_param("B", p_color.b);
mat->set_shader_param("H", h);
mat->set_shader_param("S", s);
mat->set_shader_param("V", v);
mat->set_shader_param("A", p_color.a);
}
void ColorPicker::_notification(int p_what) {
switch (p_what) {
case NOTIFICATION_THEME_CHANGED: {
uv_material->set_shader(get_shader("uv_editor"));
w_material->set_shader(get_shader("w_editor"));
update_material(uv_material, color, h, s, v);
update_material(w_material, color, h, s, v);
_update_controls();
} break;
case NOTIFICATION_ENTER_TREE: {
btn_pick->set_icon(get_icon("screen_picker", "ColorPicker"));
update_material(uv_material, color, h, s, v);
update_material(w_material, color, h, s, v);
uv_edit->get_child(0)->cast_to<Control>()->update();
w_edit->get_child(0)->cast_to<Control>()->update();
_update_color();
}
}
}
void ColorPicker::set_focus_on_line_edit() {
c_text->grab_focus();
c_text->select();
}
void ColorPicker::_update_controls() {
if (edit_alpha) {
values[3]->show();
scroll[3]->show();
labels[3]->show();
} else {
values[3]->hide();
scroll[3]->hide();
labels[3]->hide();
}
}
void ColorPicker::set_color(const Color &p_color) {
color = p_color;
if (color != last_hsv) {
h = color.get_h();
s = color.get_s();
v = color.get_v();
last_hsv = color;
}
if (!is_inside_tree())
return;
update_material(uv_material, color, h, s, v);
update_material(w_material, color, h, s, v);
uv_edit->get_child(0)->cast_to<Control>()->update();
w_edit->get_child(0)->cast_to<Control>()->update();
_update_color();
}
void ColorPicker::set_edit_alpha(bool p_show) {
edit_alpha = p_show;
_update_controls();
if (!is_inside_tree())
return;
_update_color();
sample->update();
}
bool ColorPicker::is_editing_alpha() const {
return edit_alpha;
}
void ColorPicker::_value_changed(double) {
if (updating)
return;
for (int i = 0; i < 4; i++) {
color.components[i] = scroll[i]->get_val() / (raw_mode_enabled ? 1.0 : 255.0);
}
set_color(color);
_update_text_value();
emit_signal("color_changed", color);
}
void ColorPicker::_html_entered(const String &p_html) {
if (updating)
return;
color = Color::html(p_html);
if (!is_inside_tree())
return;
set_color(color);
emit_signal("color_changed", color);
}
void ColorPicker::_update_color() {
updating = true;
for (int i = 0; i < 4; i++) {
scroll[i]->set_max(255);
scroll[i]->set_step(0.01);
if (raw_mode_enabled) {
if (i == 3)
scroll[i]->set_max(1);
scroll[i]->set_val(color.components[i]);
} else {
scroll[i]->set_val(color.components[i] * 255);
}
}
_update_text_value();
sample->update();
updating = false;
}
void ColorPicker::_update_presets() {
Size2 size = bt_add_preset->get_size();
preset->set_custom_minimum_size(Size2(size.width * presets.size(), size.height));
Image i(size.x * presets.size(), size.y, false, Image::FORMAT_RGB);
for (int y = 0; y < size.y; y++)
for (int x = 0; x < size.x * presets.size(); x++)
i.put_pixel(x, y, presets[(int)x / size.x]);
Ref<ImageTexture> t;
t.instance();
t->create_from_image(i);
preset->set_texture(t);
}
void ColorPicker::_text_type_toggled() {
if (!get_tree()->is_editor_hint())
return;
text_is_constructor = !text_is_constructor;
if (text_is_constructor) {
text_type->set_text("");
text_type->set_icon(get_icon("Script", "EditorIcons"));
} else {
text_type->set_text("#");
text_type->set_icon(NULL);
}
_update_color();
}
Color ColorPicker::get_color() const {
return color;
}
void ColorPicker::add_preset(const Color &p_color) {
if (presets.find(p_color)) {
presets.move_to_back(presets.find(p_color));
} else {
presets.push_back(p_color);
}
_update_presets();
if (presets.size() == 10)
bt_add_preset->hide();
}
void ColorPicker::set_raw_mode(bool p_enabled) {
if (raw_mode_enabled == p_enabled)
return;
raw_mode_enabled = p_enabled;
if (btn_mode->is_pressed() != p_enabled)
btn_mode->set_pressed(p_enabled);
if (!is_inside_tree())
return;
_update_controls();
_update_color();
}
bool ColorPicker::is_raw_mode() const {
return raw_mode_enabled;
}
void ColorPicker::_update_text_value() {
if (text_is_constructor) {
String t = "Color(" + String::num(color.r) + "," + String::num(color.g) + "," + String::num(color.b);
if (edit_alpha && color.a < 1)
t += ("," + String::num(color.a) + ")");
else
t += ")";
c_text->set_text(t);
} else {
c_text->set_text(color.to_html(edit_alpha && color.a < 1));
}
}
void ColorPicker::_sample_draw() {
sample->draw_rect(Rect2(Point2(), Size2(256, 20)), color);
}
void ColorPicker::_hsv_draw(int p_wich, Control *c) {
if (!c)
return;
if (p_wich == 0) {
int x = CLAMP(c->get_size().x * s, 0, c->get_size().x);
int y = CLAMP(c->get_size().y - c->get_size().y * v, 0, c->get_size().y);
Color col = color;
col.a = 1;
c->draw_line(Point2(x, 0), Point2(x, c->get_size().y), col.inverted());
c->draw_line(Point2(0, y), Point2(c->get_size().x, y), col.inverted());
c->draw_line(Point2(x, y), Point2(x, y), Color(1, 1, 1), 2);
} else if (p_wich == 1) {
int y = c->get_size().y - c->get_size().y * h;
Color col = Color();
col.set_hsv(h, 1, 1);
c->draw_line(Point2(0, y), Point2(c->get_size().x, y), col.inverted());
}
}
void ColorPicker::_uv_input(const InputEvent &ev) {
if (ev.type == InputEvent::MOUSE_BUTTON) {
const InputEventMouseButton &bev = ev.mouse_button;
if (bev.pressed && bev.button_index == BUTTON_LEFT) {
changing_color = true;
float x = CLAMP((float)bev.x, 0, 256);
float y = CLAMP((float)bev.y, 0, 256);
s = x / 256;
v = 1.0 - y / 256.0;
color.set_hsv(h, s, v, color.a);
last_hsv = color;
set_color(color);
_update_color();
emit_signal("color_changed", color);
} else {
changing_color = false;
}
} else if (ev.type == InputEvent::MOUSE_MOTION) {
const InputEventMouse &bev = ev.mouse_motion;
if (!changing_color)
return;
float x = CLAMP((float)bev.x, 0, 256);
float y = CLAMP((float)bev.y, 0, 256);
s = x / 256;
v = 1.0 - y / 256.0;
color.set_hsv(h, s, v, color.a);
last_hsv = color;
set_color(color);
_update_color();
emit_signal("color_changed", color);
}
}
void ColorPicker::_w_input(const InputEvent &ev) {
if (ev.type == InputEvent::MOUSE_BUTTON) {
const InputEventMouseButton &bev = ev.mouse_button;
if (bev.pressed && bev.button_index == BUTTON_LEFT) {
changing_color = true;
h = 1 - ((float)bev.y) / 256.0;
} else {
changing_color = false;
}
color.set_hsv(h, s, v, color.a);
last_hsv = color;
set_color(color);
_update_color();
emit_signal("color_changed", color);
} else if (ev.type == InputEvent::MOUSE_MOTION) {
const InputEventMouse &bev = ev.mouse_motion;
if (!changing_color)
return;
float y = CLAMP((float)bev.y, 0, 256);
h = 1.0 - y / 256.0;
color.set_hsv(h, s, v, color.a);
last_hsv = color;
set_color(color);
_update_color();
emit_signal("color_changed", color);
}
}
void ColorPicker::_preset_input(const InputEvent &ev) {
if (ev.type == InputEvent::MOUSE_BUTTON) {
const InputEventMouseButton &bev = ev.mouse_button;
if (bev.pressed && bev.button_index == BUTTON_LEFT) {
int index = bev.x / (preset->get_size().x / presets.size());
set_color(presets[index]);
} else if (bev.pressed && bev.button_index == BUTTON_RIGHT) {
int index = bev.x / (preset->get_size().x / presets.size());
presets.erase(presets[index]);
_update_presets();
bt_add_preset->show();
}
_update_color();
emit_signal("color_changed", color);
} else if (ev.type == InputEvent::MOUSE_MOTION) {
const InputEventMouse &mev = ev.mouse_motion;
int index = mev.x * presets.size();
if (preset->get_size().x != 0) {
index /= preset->get_size().x;
}
if (index < 0 || index >= presets.size())
return;
preset->set_tooltip("Color: #" + presets[index].to_html(presets[index].a < 1) + "\n"
"LMB: Set color\n"
"RMB: Remove preset");
}
}
void ColorPicker::_screen_input(const InputEvent &ev) {
if (ev.type == InputEvent::MOUSE_BUTTON) {
const InputEventMouseButton &bev = ev.mouse_button;
if (bev.button_index == BUTTON_LEFT && !bev.pressed) {
emit_signal("color_changed", color);
screen->hide();
}
} else if (ev.type == InputEvent::MOUSE_MOTION) {
const InputEventMouse &mev = ev.mouse_motion;
Viewport *r = get_tree()->get_root();
if (!r->get_rect().has_point(Point2(mev.global_x, mev.global_y)))
return;
Image img = r->get_screen_capture();
if (!img.empty())
last_capture = img;
r->queue_screen_capture();
if (!last_capture.empty())
set_color(last_capture.get_pixel(mev.global_x, mev.global_y));
}
}
void ColorPicker::_add_preset_pressed() {
add_preset(color);
}
void ColorPicker::_screen_pick_pressed() {
Viewport *r = get_tree()->get_root();
if (!screen) {
screen = memnew(Control);
r->add_child(screen);
screen->set_as_toplevel(true);
screen->set_area_as_parent_rect();
screen->connect("input_event", this, "_screen_input");
}
screen->raise();
screen->show_modal();
r->queue_screen_capture();
}
void ColorPicker::_bind_methods() {
ObjectTypeDB::bind_method(_MD("set_color", "color"), &ColorPicker::set_color);
ObjectTypeDB::bind_method(_MD("get_color"), &ColorPicker::get_color);
ObjectTypeDB::bind_method(_MD("set_raw_mode", "mode"), &ColorPicker::set_raw_mode);
ObjectTypeDB::bind_method(_MD("is_raw_mode"), &ColorPicker::is_raw_mode);
ObjectTypeDB::bind_method(_MD("set_edit_alpha", "show"), &ColorPicker::set_edit_alpha);
ObjectTypeDB::bind_method(_MD("is_editing_alpha"), &ColorPicker::is_editing_alpha);
ObjectTypeDB::bind_method(_MD("add_preset"), &ColorPicker::add_preset);
ObjectTypeDB::bind_method(_MD("_value_changed"), &ColorPicker::_value_changed);
ObjectTypeDB::bind_method(_MD("_html_entered"), &ColorPicker::_html_entered);
ObjectTypeDB::bind_method(_MD("_text_type_toggled"), &ColorPicker::_text_type_toggled);
ObjectTypeDB::bind_method(_MD("_add_preset_pressed"), &ColorPicker::_add_preset_pressed);
ObjectTypeDB::bind_method(_MD("_screen_pick_pressed"), &ColorPicker::_screen_pick_pressed);
ObjectTypeDB::bind_method(_MD("_sample_draw"), &ColorPicker::_sample_draw);
ObjectTypeDB::bind_method(_MD("_hsv_draw"), &ColorPicker::_hsv_draw);
ObjectTypeDB::bind_method(_MD("_uv_input"), &ColorPicker::_uv_input);
ObjectTypeDB::bind_method(_MD("_w_input"), &ColorPicker::_w_input);
ObjectTypeDB::bind_method(_MD("_preset_input"), &ColorPicker::_preset_input);
ObjectTypeDB::bind_method(_MD("_screen_input"), &ColorPicker::_screen_input);
ADD_SIGNAL(MethodInfo("color_changed", PropertyInfo(Variant::COLOR, "color")));
}
ColorPicker::ColorPicker()
: BoxContainer(true) {
updating = true;
edit_alpha = true;
text_is_constructor = false;
raw_mode_enabled = false;
changing_color = false;
screen = NULL;
HBoxContainer *hb_smpl = memnew(HBoxContainer);
btn_pick = memnew(ToolButton);
btn_pick->connect("pressed", this, "_screen_pick_pressed");
sample = memnew(TextureFrame);
sample->set_h_size_flags(SIZE_EXPAND_FILL);
sample->connect("draw", this, "_sample_draw");
hb_smpl->add_child(sample);
hb_smpl->add_child(btn_pick);
add_child(hb_smpl);
HBoxContainer *hb_edit = memnew(HBoxContainer);
uv_edit = memnew(TextureFrame);
Image i(256, 256, false, Image::FORMAT_RGB);
for (int y = 0; y < 256; y++)
for (int x = 0; x < 256; x++)
i.put_pixel(x, y, Color());
Ref<ImageTexture> t;
t.instance();
t->create_from_image(i);
uv_edit->set_texture(t);
uv_edit->set_ignore_mouse(false);
uv_edit->set_custom_minimum_size(Size2(256, 256));
uv_edit->connect("input_event", this, "_uv_input");
Control *c = memnew(Control);
uv_edit->add_child(c);
c->set_area_as_parent_rect();
c->set_stop_mouse(false);
c->set_material(memnew(CanvasItemMaterial));
Vector<Variant> args = Vector<Variant>();
args.push_back(0);
args.push_back(c);
c->connect("draw", this, "_hsv_draw", args);
add_child(hb_edit);
w_edit = memnew(TextureFrame);
i = Image(15, 256, false, Image::FORMAT_RGB);
for (int y = 0; y < 256; y++)
for (int x = 0; x < 15; x++)
i.put_pixel(x, y, Color());
Ref<ImageTexture> tw;
tw.instance();
tw->create_from_image(i);
w_edit->set_texture(tw);
w_edit->set_ignore_mouse(false);
w_edit->set_custom_minimum_size(Size2(15, 256));
w_edit->connect("input_event", this, "_w_input");
c = memnew(Control);
w_edit->add_child(c);
c->set_area_as_parent_rect();
c->set_stop_mouse(false);
c->set_material(memnew(CanvasItemMaterial));
args.clear();
args.push_back(1);
args.push_back(c);
c->connect("draw", this, "_hsv_draw", args);
hb_edit->add_child(uv_edit);
hb_edit->add_child(memnew(VSeparator));
hb_edit->add_child(w_edit);
VBoxContainer *vbl = memnew(VBoxContainer);
add_child(vbl);
add_child(memnew(HSeparator));
VBoxContainer *vbr = memnew(VBoxContainer);
add_child(vbr);
vbr->set_h_size_flags(SIZE_EXPAND_FILL);
const char *lt[4] = { "R", "G", "B", "A" };
for (int i = 0; i < 4; i++) {
HBoxContainer *hbc = memnew(HBoxContainer);
labels[i] = memnew(Label(lt[i]));
hbc->add_child(labels[i]);
scroll[i] = memnew(HSlider);
hbc->add_child(scroll[i]);
values[i] = memnew(SpinBox);
scroll[i]->share(values[i]);
hbc->add_child(values[i]);
scroll[i]->set_min(0);
scroll[i]->set_page(0);
scroll[i]->set_h_size_flags(SIZE_EXPAND_FILL);
scroll[i]->connect("value_changed", this, "_value_changed");
vbr->add_child(hbc);
}
HBoxContainer *hhb = memnew(HBoxContainer);
btn_mode = memnew(CheckButton);
btn_mode->set_text("RAW Mode");
btn_mode->connect("toggled", this, "set_raw_mode");
hhb->add_child(btn_mode);
vbr->add_child(hhb);
text_type = memnew(Button);
text_type->set_flat(true);
text_type->connect("pressed", this, "_text_type_toggled");
hhb->add_child(text_type);
c_text = memnew(LineEdit);
hhb->add_child(c_text);
c_text->connect("text_entered", this, "_html_entered");
text_type->set_text("#");
c_text->set_h_size_flags(SIZE_EXPAND_FILL);
_update_controls();
//_update_color();
updating = false;
uv_material.instance();
Ref<Shader> s_uv = get_shader("uv_editor");
uv_material->set_shader(s_uv);
w_material.instance();
Ref<Shader> s_w = get_shader("w_editor");
w_material->set_shader(s_w);
uv_edit->set_material(uv_material);
w_edit->set_material(w_material);
set_color(Color(1, 1, 1));
i.create(256, 20, false, Image::FORMAT_RGB);
for (int y = 0; y < 20; y++)
for (int x = 0; x < 256; x++)
if ((x / 4 + y / 4) % 2)
i.put_pixel(x, y, Color(1, 1, 1));
else
i.put_pixel(x, y, Color(0.6, 0.6, 0.6));
Ref<ImageTexture> t_smpl;
t_smpl.instance();
t_smpl->create_from_image(i);
sample->set_texture(t_smpl);
HBoxContainer *bbc = memnew(HBoxContainer);
add_child(bbc);
preset = memnew(TextureFrame);
bbc->add_child(preset);
preset->set_ignore_mouse(false);
preset->connect("input_event", this, "_preset_input");
bt_add_preset = memnew(Button);
bt_add_preset->set_icon(get_icon("add_preset"));
bt_add_preset->set_tooltip("Add current color as a preset");
bt_add_preset->connect("pressed", this, "_add_preset_pressed");
bbc->add_child(bt_add_preset);
}
/////////////////
void ColorPickerButton::_color_changed(const Color &p_color) {
update();
emit_signal("color_changed", p_color);
}
void ColorPickerButton::pressed() {
Size2 ms = Size2(300, picker->get_combined_minimum_size().height + 10);
popup->set_pos(get_global_pos() - Size2(0, ms.height));
popup->set_size(ms);
popup->popup();
picker->set_focus_on_line_edit();
}
void ColorPickerButton::_notification(int p_what) {
if (p_what == NOTIFICATION_DRAW) {
Ref<StyleBox> normal = get_stylebox("normal");
draw_rect(Rect2(normal->get_offset(), get_size() - normal->get_minimum_size()), picker->get_color());
}
}
void ColorPickerButton::set_color(const Color &p_color) {
picker->set_color(p_color);
update();
}
Color ColorPickerButton::get_color() const {
return picker->get_color();
}
void ColorPickerButton::set_edit_alpha(bool p_show) {
picker->set_edit_alpha(p_show);
}
bool ColorPickerButton::is_editing_alpha() const {
return picker->is_editing_alpha();
}
ColorPicker *ColorPickerButton::get_picker() {
return picker;
}
void ColorPickerButton::_bind_methods() {
ObjectTypeDB::bind_method(_MD("set_color", "color"), &ColorPickerButton::set_color);
ObjectTypeDB::bind_method(_MD("get_color"), &ColorPickerButton::get_color);
ObjectTypeDB::bind_method(_MD("get_picker:ColorPicker"), &ColorPickerButton::get_picker);
ObjectTypeDB::bind_method(_MD("set_edit_alpha", "show"), &ColorPickerButton::set_edit_alpha);
ObjectTypeDB::bind_method(_MD("is_editing_alpha"), &ColorPickerButton::is_editing_alpha);
ObjectTypeDB::bind_method(_MD("_color_changed"), &ColorPickerButton::_color_changed);
ADD_SIGNAL(MethodInfo("color_changed", PropertyInfo(Variant::COLOR, "color")));
ADD_PROPERTY(PropertyInfo(Variant::COLOR, "color"), _SCS("set_color"), _SCS("get_color"));
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "edit_alpha"), _SCS("set_edit_alpha"), _SCS("is_editing_alpha"));
}
ColorPickerButton::ColorPickerButton() {
popup = memnew(PopupPanel);
picker = memnew(ColorPicker);
popup->add_child(picker);
popup->set_child_rect(picker);
picker->connect("color_changed", this, "_color_changed");
add_child(popup);
}