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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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12
Applications/PixelPaint/main.cpp
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@ -32,6 +32,7 @@
#include "PaletteWidget.h"
#include "Tool.h"
#include "ToolboxWidget.h"
#include "LayerPropertiesWidget.h"
#include <LibGUI/AboutDialog.h>
#include <LibGUI/Action.h>
#include <LibGUI/Application.h>
@ -94,6 +95,8 @@ int main(int argc, char** argv)
auto& layer_list_widget = right_panel.add<PixelPaint::LayerListWidget>();
auto& layer_properties_widget = right_panel.add<PixelPaint::LayerPropertiesWidget>();
window->show();
auto menubar = GUI::MenuBar::construct();
@ -131,7 +134,7 @@ int main(int argc, char** argv)
"Create new layer...", { Mod_Ctrl | Mod_Shift, Key_N }, [&](auto&) {
auto dialog = PixelPaint::CreateNewLayerDialog::construct(image_editor.image()->size(), window);
if (dialog->exec() == GUI::Dialog::ExecOK) {
auto layer = PixelPaint::Layer::create_with_size(dialog->layer_size(), dialog->layer_name());
auto layer = PixelPaint::Layer::create_with_size(*image_editor.image(), dialog->layer_size(), dialog->layer_name());
if (!layer) {
GUI::MessageBox::show_error(window, String::format("Unable to create layer with size %s", dialog->size().to_string().characters()));
return;
@ -200,20 +203,21 @@ int main(int argc, char** argv)
image_editor.on_active_layer_change = [&](auto* layer) {
layer_list_widget.set_selected_layer(layer);
layer_properties_widget.set_layer(layer);
};
auto image = PixelPaint::Image::create_with_size({ 640, 480 });
auto bg_layer = PixelPaint::Layer::create_with_size({ 640, 480 }, "Background");
auto bg_layer = PixelPaint::Layer::create_with_size(*image, { 640, 480 }, "Background");
image->add_layer(*bg_layer);
bg_layer->bitmap().fill(Color::White);
auto fg_layer1 = PixelPaint::Layer::create_with_size({ 200, 200 }, "FG Layer 1");
auto fg_layer1 = PixelPaint::Layer::create_with_size(*image, { 200, 200 }, "FG Layer 1");
fg_layer1->set_location({ 50, 50 });
image->add_layer(*fg_layer1);
fg_layer1->bitmap().fill(Color::Yellow);
auto fg_layer2 = PixelPaint::Layer::create_with_size({ 100, 100 }, "FG Layer 2");
auto fg_layer2 = PixelPaint::Layer::create_with_size(*image, { 100, 100 }, "FG Layer 2");
fg_layer2->set_location({ 300, 300 });
image->add_layer(*fg_layer2);
fg_layer2->bitmap().fill(Color::Blue);