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PaintBrush: Allow editing palette colors by ctrl-clicking them.

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Maybe the ColorDialog class could be fashioned into something generally
usable in LibGUI, but for now it lives in the PaintBrush app. :^)
This commit is contained in:
Andreas Kling 2019-06-16 15:09:36 +02:00
parent 017c0f87b4
commit cf17e385b5
4 changed files with 113 additions and 1 deletions
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83
Applications/PaintBrush/ColorDialog.cpp Normal file
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#include "ColorDialog.h"
#include <LibGUI/GBoxLayout.h>
#include <LibGUI/GButton.h>
#include <LibGUI/GFrame.h>
#include <LibGUI/GSpinBox.h>
#include <LibGUI/GWidget.h>
ColorDialog::ColorDialog(Color color, CObject* parent)
: GDialog(parent)
, m_color(color)
{
set_title("Edit Color");
build();
}
ColorDialog::~ColorDialog()
{
}
void ColorDialog::build()
{
auto* horizontal_container = new GWidget;
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 = new GWidget(horizontal_container);
left_vertical_container->set_layout(make<GBoxLayout>(Orientation::Vertical));
auto* right_vertical_container = new GWidget(horizontal_container);
right_vertical_container->set_layout(make<GBoxLayout>(Orientation::Vertical));
enum RGBComponent {
Red, Green, Blue
};
auto* preview_widget = new GFrame(right_vertical_container);
preview_widget->set_background_color(m_color);
preview_widget->set_fill_with_background_color(true);
right_vertical_container->layout()->add_spacer();
auto* cancel_button = new GButton("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 = new GButton("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 = new GSpinBox(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 = [=](auto value) {
dbgprintf("on_change, component=%d, value=%d\n", component, 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);
dbgprintf("m_color is now: %s\n", m_color.to_string().characters());
preview_widget->set_background_color(m_color);
preview_widget->update();
};
return spinbox;
};
auto* red_spin = make_spinbox(Red, m_color.red());
auto* green_spin = make_spinbox(Green, m_color.green());
auto* blue_spin = make_spinbox(Blue, m_color.blue());
}