65 lines
1.8 KiB
C++
65 lines
1.8 KiB
C++
/*
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src/colorpicker.cpp -- push button with a popup to tweak a color value
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This widget was contributed by Christian Schueller.
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NanoGUI was developed by Wenzel Jakob <wenzel@inf.ethz.ch>.
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The widget drawing code is based on the NanoVG demo application
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by Mikko Mononen.
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All rights reserved. Use of this source code is governed by a
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BSD-style license that can be found in the LICENSE.txt file.
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*/
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#include <nanogui/colorpicker.h>
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#include <nanogui/layout.h>
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#include <nanogui/colorwheel.h>
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NAMESPACE_BEGIN(nanogui)
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ColorPicker::ColorPicker(Widget *parent, const Color& color) : PopupButton(parent, "") {
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setBackgroundColor(color);
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Popup *popup = this->popup();
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popup->setLayout(new GroupLayout());
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mColorWheel = new ColorWheel(popup);
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mPickButton = new Button(popup, "Pick");
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mPickButton->setFixedSize(Vector2i(100, 25));
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PopupButton::setChangeCallback([&](bool) {
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setColor(backgroundColor());
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mCallback(backgroundColor());
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});
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mColorWheel->setCallback([&](const Color &value) {
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mPickButton->setBackgroundColor(value);
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mPickButton->setTextColor(value.contrastingColor());
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mCallback(value);
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});
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mPickButton->setCallback([&]() {
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Color value = mColorWheel->color();
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setPushed(false);
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setColor(value);
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mCallback(value);
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});
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}
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Color ColorPicker::color() const {
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return backgroundColor();
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}
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void ColorPicker::setColor(const Color& color) {
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/* Ignore setColor() calls when the user is currently editing */
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if (!mPushed) {
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Color fg = color.contrastingColor();
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setBackgroundColor(color);
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setTextColor(fg);
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mColorWheel->setColor(color);
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mPickButton->setBackgroundColor(color);
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mPickButton->setTextColor(fg);
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}
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}
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NAMESPACE_END(nanogui)
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