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LibGUI: Import GColorPicker from the PaintBrush application

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This commit is contained in:
Andreas Kling 2020-01-21 20:25:33 +01:00
parent 30ad7953ca
commit a14f08fcc9
5 changed files with 30 additions and 28 deletions
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Libraries/LibGUI/GColorPicker.cpp Normal file
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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <LibGUI/GBoxLayout.h>
#include <LibGUI/GButton.h>
#include <LibGUI/GColorPicker.h>
#include <LibGUI/GFrame.h>
#include <LibGUI/GSpinBox.h>
#include <LibGUI/GWidget.h>
GColorPicker::GColorPicker(Color color, CObject* parent)
: GDialog(parent)
, m_color(color)
{
set_title("Edit Color");
build();
}
GColorPicker::~GColorPicker()
{
}
void GColorPicker::build()
{
auto horizontal_container = GWidget::construct();
horizontal_container->set_fill_with_background_color(true);
horizontal_container->set_layout(make<GBoxLayout>(Orientation::Horizontal));
horizontal_container->layout()->set_margins({ 4, 4, 4, 4 });
set_main_widget(horizontal_container);
auto left_vertical_container = GWidget::construct(horizontal_container.ptr());
left_vertical_container->set_layout(make<GBoxLayout>(Orientation::Vertical));
auto right_vertical_container = GWidget::construct(horizontal_container.ptr());
right_vertical_container->set_layout(make<GBoxLayout>(Orientation::Vertical));
enum RGBComponent {
Red,
Green,
Blue
};
m_preview_widget = GFrame::construct(right_vertical_container);
auto pal = m_preview_widget->palette();
pal.set_color(ColorRole::Background, m_color);
m_preview_widget->set_fill_with_background_color(true);
m_preview_widget->set_palette(pal);
right_vertical_container->layout()->add_spacer();
auto cancel_button = GButton::construct("Cancel", right_vertical_container);
cancel_button->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
cancel_button->set_preferred_size(0, 20);
cancel_button->on_click = [&](auto&) {
done(GDialog::ExecCancel);
};
auto ok_button = GButton::construct("Okay", right_vertical_container);
ok_button->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
ok_button->set_preferred_size(0, 20);
ok_button->on_click = [&](auto&) {
done(GDialog::ExecOK);
};
auto make_spinbox = [&](RGBComponent component, int initial_value) {
auto spinbox = GSpinBox::construct(left_vertical_container);
spinbox->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
spinbox->set_preferred_size(0, 20);
spinbox->set_min(0);
spinbox->set_max(255);
spinbox->set_value(initial_value);
spinbox->on_change = [this, component](auto value) {
if (component == Red)
m_color.set_red(value);
if (component == Green)
m_color.set_green(value);
if (component == Blue)
m_color.set_blue(value);
auto pal = m_preview_widget->palette();
pal.set_color(ColorRole::Background, m_color);
m_preview_widget->set_palette(pal);
m_preview_widget->update();
};
return spinbox;
};
make_spinbox(Red, m_color.red());
make_spinbox(Green, m_color.green());
make_spinbox(Blue, m_color.blue());
}