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PixelPaint: Add a GUI for editing opacity and visibility of layers

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Also, make the layer stack rendering respect opacity and visibility.
This commit is contained in:
Andreas Kling 2020-07-23 20:33:38 +02:00
parent d7be3faab5
commit b560445c84
8 changed files with 191 additions and 13 deletions
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77
Applications/PixelPaint/LayerPropertiesWidget.cpp Normal file
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/*
* Copyright (c) 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 "LayerPropertiesWidget.h"
#include "Layer.h"
#include <LibGUI/BoxLayout.h>
#include <LibGUI/CheckBox.h>
#include <LibGUI/Label.h>
#include <LibGUI/Slider.h>
#include <LibGfx/Font.h>
namespace PixelPaint {
LayerPropertiesWidget::LayerPropertiesWidget()
{
set_layout<GUI::VerticalBoxLayout>();
auto& label = add<GUI::Label>("Layer properties");
label.set_font(Gfx::Font::default_bold_font());
m_opacity_slider = add<GUI::HorizontalSlider>();
m_opacity_slider->set_range(0, 100);
m_opacity_slider->on_value_changed = [this](int value) {
if (m_layer)
m_layer->set_opacity_percent(value);
};
m_visibility_checkbox = add<GUI::CheckBox>("Visible");
m_visibility_checkbox->on_checked = [this](bool checked) {
if (m_layer)
m_layer->set_visible(checked);
};
}
LayerPropertiesWidget::~LayerPropertiesWidget()
{
}
void LayerPropertiesWidget::set_layer(Layer* layer)
{
if (m_layer == layer)
return;
if (layer) {
m_layer = layer->make_weak_ptr();
m_opacity_slider->set_value(layer->opacity_percent());
m_visibility_checkbox->set_checked(layer->is_visible());
set_enabled(true);
} else {
m_layer = nullptr;
set_enabled(false);
}
}
}