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godot/scene/gui/color_picker.cpp

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/*************************************************************************/
/* color_picker.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2017 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. */
/*************************************************************************/
#include "color_picker.h"
#include "scene/gui/separator.h"
#include "scene/main/viewport.h"
#include "os/os.h"
#include "os/input.h"
#include "os/keyboard.h"
void ColorPicker::_notification(int p_what) {
switch(p_what) {
case NOTIFICATION_THEME_CHANGED: {
//sample->set_texture(get_icon("color_sample"));
_update_controls();
} break;
case NOTIFICATION_ENTER_TREE: {
btn_pick->set_icon(get_icon("screen_picker", "ColorPicker"));
_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;
return; //it crashes, so returning
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_value()/(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_value(color.components[i]);
} else {
scroll[i]->set_value(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));
PoolVector<uint8_t> img;
img.resize(size.x*presets.size()*size.y*3);
{
PoolVector<uint8_t>::Write w=img.write();
for (int y=0;y<size.y;y++) {
for (int x=0;x<size.x*presets.size();x++) {
int ofs = (y*(size.x*presets.size())+x)*3;
w[ofs+0]=uint8_t(CLAMP(presets[(int)x/size.x].r*255.0,0,255));
w[ofs+1]=uint8_t(CLAMP(presets[(int)x/size.x].g*255.0,0,255));
w[ofs+2]=uint8_t(CLAMP(presets[(int)x/size.x].b*255.0,0,255));
}
}
}
Image i(size.x*presets.size(),size.y, false, Image::FORMAT_RGB8,img);
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) {
Vector<Point2> points;
points.push_back(Vector2());
points.push_back(Vector2(c->get_size().x,0));
points.push_back(c->get_size());
points.push_back(Vector2(0,c->get_size().y));
Vector<Color> colors;
colors.push_back(Color(1,1,1));
colors.push_back(Color(1,1,1));
colors.push_back(Color());
colors.push_back(Color());
c->draw_polygon(points,colors);
Vector<Color> colors2;
Color col = color;
col.set_hsv(color.get_h(),1,1);
col.a = 0;
colors2.push_back(col);
col.a = 1;
colors2.push_back(col);
col.set_hsv(color.get_h(),1,0);
colors2.push_back(col);
col.a = 0;
colors2.push_back(col);
c->draw_polygon(points,colors);
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);
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) {
Ref<Texture> hue = get_icon("color_hue","ColorPicker");
c->draw_texture_rect(hue,Rect2(Point2(),c->get_size()));
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_visible_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()) {
int pw = last_capture.get_format()==Image::FORMAT_RGBA8?4:3;
int ofs = (mev.global_y*last_capture.get_width()+mev.global_x)*pw;
PoolVector<uint8_t>::Read r = last_capture.get_data().read();
Color c( r[ofs+0]/255.0, r[ofs+1]/255.0, r[ofs+2]/255.0 );
set_color(c);
}
}
}
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("gui_input",this,"_screen_input");
}
screen->raise();
screen->show_modal();
r->queue_screen_capture();
}
void ColorPicker::_bind_methods() {
ClassDB::bind_method(_MD("set_color","color"),&ColorPicker::set_color);
ClassDB::bind_method(_MD("get_color"),&ColorPicker::get_color);
ClassDB::bind_method(_MD("set_raw_mode","mode"),&ColorPicker::set_raw_mode);
ClassDB::bind_method(_MD("is_raw_mode"),&ColorPicker::is_raw_mode);
ClassDB::bind_method(_MD("set_edit_alpha","show"),&ColorPicker::set_edit_alpha);
ClassDB::bind_method(_MD("is_editing_alpha"),&ColorPicker::is_editing_alpha);
ClassDB::bind_method(_MD("add_preset"), &ColorPicker::add_preset);
ClassDB::bind_method(_MD("_value_changed"),&ColorPicker::_value_changed);
ClassDB::bind_method(_MD("_html_entered"),&ColorPicker::_html_entered);
ClassDB::bind_method(_MD("_text_type_toggled"),&ColorPicker::_text_type_toggled);
ClassDB::bind_method(_MD("_add_preset_pressed"), &ColorPicker::_add_preset_pressed);
ClassDB::bind_method(_MD("_screen_pick_pressed"), &ColorPicker::_screen_pick_pressed);
ClassDB::bind_method(_MD("_sample_draw"),&ColorPicker::_sample_draw);
ClassDB::bind_method(_MD("_hsv_draw"),&ColorPicker::_hsv_draw);
ClassDB::bind_method(_MD("_uv_input"),&ColorPicker::_uv_input);
ClassDB::bind_method(_MD("_w_input"),&ColorPicker::_w_input);
ClassDB::bind_method(_MD("_preset_input"),&ColorPicker::_preset_input);
ClassDB::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 ( Control );
uv_edit->connect("gui_input", this, "_uv_input");
uv_edit->set_mouse_filter(MOUSE_FILTER_PASS);
uv_edit->set_custom_minimum_size(Size2 (256,256));
Vector<Variant> args=Vector<Variant>();
args.push_back(0);
args.push_back(uv_edit);
uv_edit->connect("draw",this,"_hsv_draw",args);
add_child(hb_edit);
w_edit= memnew( Control );
//w_edit->set_ignore_mouse(false);
w_edit->set_custom_minimum_size(Size2(30,256));
w_edit->connect("gui_input", this, "_w_input");
args.clear();
args.push_back(1);
args.push_back(w_edit);
w_edit->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;
set_color(Color(1,1,1));
HBoxContainer *bbc = memnew( HBoxContainer );
add_child(bbc);
preset = memnew( TextureFrame );
bbc->add_child(preset);
//preset->set_ignore_mouse(false);
preset->connect("gui_input", 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();
emit_signal("color_changed",p_color);
}
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(){
ClassDB::bind_method(_MD("set_color","color"),&ColorPickerButton::set_color);
ClassDB::bind_method(_MD("get_color"),&ColorPickerButton::get_color);
ClassDB::bind_method(_MD("get_picker:ColorPicker"),&ColorPickerButton::get_picker);
ClassDB::bind_method(_MD("set_edit_alpha","show"),&ColorPickerButton::set_edit_alpha);
ClassDB::bind_method(_MD("is_editing_alpha"),&ColorPickerButton::is_editing_alpha);
ClassDB::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);
picker->connect("color_changed",this,"_color_changed");
add_child(popup);
}
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