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serenity/Userland/Applications/PixelPaint/MainWidget.cpp
Tobias Christiansen 8b0bd665ec PixelPaint: Add "Add Mask" to Layer context menu
2022-03-08 22:07:12 +01:00

898 lines
36 KiB
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/*
* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2021-2022, Mustafa Quraish <mustafa@serenityos.org>
* Copyright (c) 2021-2022, Tobias Christiansen <tobyase@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "MainWidget.h"
#include "CreateNewImageDialog.h"
#include "CreateNewLayerDialog.h"
#include "EditGuideDialog.h"
#include "FilterGallery.h"
#include "FilterParams.h"
#include <Applications/PixelPaint/PixelPaintWindowGML.h>
#include <LibConfig/Client.h>
#include <LibCore/File.h>
#include <LibCore/MimeData.h>
#include <LibFileSystemAccessClient/Client.h>
#include <LibGUI/Application.h>
#include <LibGUI/Clipboard.h>
#include <LibGUI/Icon.h>
#include <LibGUI/ItemListModel.h>
#include <LibGUI/Menubar.h>
#include <LibGUI/MessageBox.h>
#include <LibGUI/Toolbar.h>
#include <LibGUI/Window.h>
#include <LibGfx/Rect.h>
namespace PixelPaint {
IconBag g_icon_bag;
MainWidget::MainWidget()
: Widget()
{
load_from_gml(pixel_paint_window_gml);
m_toolbox = find_descendant_of_type_named<PixelPaint::ToolboxWidget>("toolbox");
m_statusbar = *find_descendant_of_type_named<GUI::Statusbar>("statusbar");
m_tab_widget = find_descendant_of_type_named<GUI::TabWidget>("tab_widget");
m_tab_widget->set_container_margins({ 4, 5, 5, 4 });
m_tab_widget->set_reorder_allowed(true);
m_tab_widget->set_close_button_enabled(true);
m_palette_widget = *find_descendant_of_type_named<PixelPaint::PaletteWidget>("palette_widget");
m_layer_list_widget = *find_descendant_of_type_named<PixelPaint::LayerListWidget>("layer_list_widget");
m_layer_list_widget->on_layer_select = [&](auto* layer) {
auto* editor = current_image_editor();
VERIFY(editor);
editor->set_active_layer(layer);
};
m_layer_properties_widget = *find_descendant_of_type_named<PixelPaint::LayerPropertiesWidget>("layer_properties_widget");
m_tool_properties_widget = *find_descendant_of_type_named<PixelPaint::ToolPropertiesWidget>("tool_properties_widget");
m_toolbox->on_tool_selection = [&](auto* tool) {
auto* editor = current_image_editor();
VERIFY(editor);
editor->set_active_tool(tool);
m_tool_properties_widget->set_active_tool(tool);
};
m_tab_widget->on_middle_click = [&](auto& widget) {
m_tab_widget->on_tab_close_click(widget);
};
m_tab_widget->on_tab_close_click = [&](auto& widget) {
auto& image_editor = verify_cast<PixelPaint::ImageEditor>(widget);
if (image_editor.request_close()) {
m_tab_widget->deferred_invoke([&] {
m_tab_widget->remove_tab(image_editor);
if (m_tab_widget->children().size() == 0) {
m_layer_list_widget->set_image(nullptr);
m_layer_properties_widget->set_layer(nullptr);
m_palette_widget->set_image_editor(nullptr);
m_tool_properties_widget->set_enabled(false);
set_actions_enabled(false);
}
});
}
};
m_tab_widget->on_change = [&](auto& widget) {
auto& image_editor = verify_cast<PixelPaint::ImageEditor>(widget);
m_palette_widget->set_image_editor(&image_editor);
m_layer_list_widget->set_image(&image_editor.image());
m_layer_properties_widget->set_layer(image_editor.active_layer());
if (auto* active_tool = m_toolbox->active_tool())
image_editor.set_active_tool(active_tool);
m_show_guides_action->set_checked(image_editor.guide_visibility());
m_show_rulers_action->set_checked(image_editor.ruler_visibility());
image_editor.on_scale_change(image_editor.scale());
};
}
// Note: Update these together! v
static const Vector<String> s_suggested_zoom_levels { "25%", "50%", "100%", "200%", "300%", "400%", "800%", "1600%", "Fit to width", "Fit to height", "Fit entire image" };
static constexpr int s_zoom_level_fit_width = 8;
static constexpr int s_zoom_level_fit_height = 9;
static constexpr int s_zoom_level_fit_image = 10;
// Note: Update these together! ^
void MainWidget::initialize_menubar(GUI::Window& window)
{
auto& file_menu = window.add_menu("&File");
m_new_image_action = GUI::Action::create(
"&New Image...", { Mod_Ctrl, Key_N }, g_icon_bag.filetype_pixelpaint, [&](auto&) {
auto dialog = PixelPaint::CreateNewImageDialog::construct(&window);
if (dialog->exec() == GUI::Dialog::ExecOK) {
auto image = PixelPaint::Image::try_create_with_size(dialog->image_size()).release_value_but_fixme_should_propagate_errors();
auto bg_layer = PixelPaint::Layer::try_create_with_size(*image, image->size(), "Background").release_value_but_fixme_should_propagate_errors();
image->add_layer(*bg_layer);
bg_layer->content_bitmap().fill(Color::White);
auto& editor = create_new_editor(*image);
auto image_title = dialog->image_name().trim_whitespace();
editor.set_title(image_title.is_empty() ? "Untitled" : image_title);
editor.undo_stack().set_current_unmodified();
m_layer_list_widget->set_image(image);
m_layer_list_widget->set_selected_layer(bg_layer);
}
});
m_new_image_from_clipboard_action = GUI::Action::create(
"&New Image from Clipboard", { Mod_Ctrl | Mod_Shift, Key_V }, g_icon_bag.new_clipboard, [&](auto&) {
create_image_from_clipboard();
});
m_open_image_action = GUI::CommonActions::make_open_action([&](auto&) {
auto response = FileSystemAccessClient::Client::the().try_open_file(&window);
if (response.is_error())
return;
open_image(response.value());
});
m_save_image_as_action = GUI::CommonActions::make_save_as_action([&](auto&) {
auto* editor = current_image_editor();
VERIFY(editor);
editor->save_project_as();
});
m_save_image_action = GUI::CommonActions::make_save_action([&](auto&) {
auto* editor = current_image_editor();
VERIFY(editor);
editor->save_project();
});
file_menu.add_action(*m_new_image_action);
file_menu.add_action(*m_new_image_from_clipboard_action);
file_menu.add_action(*m_open_image_action);
file_menu.add_action(*m_save_image_action);
file_menu.add_action(*m_save_image_as_action);
m_export_submenu = file_menu.add_submenu("&Export");
m_export_submenu->add_action(
GUI::Action::create(
"As &BMP", [&](auto&) {
auto* editor = current_image_editor();
VERIFY(editor);
auto response = FileSystemAccessClient::Client::the().try_save_file(&window, "untitled", "bmp");
if (response.is_error())
return;
auto preserve_alpha_channel = GUI::MessageBox::show(&window, "Do you wish to preserve transparency?", "Preserve transparency?", GUI::MessageBox::Type::Question, GUI::MessageBox::InputType::YesNo);
auto result = editor->image().export_bmp_to_file(response.value(), preserve_alpha_channel == GUI::MessageBox::ExecYes);
if (result.is_error())
GUI::MessageBox::show_error(&window, String::formatted("Export to BMP failed: {}", result.error()));
}));
m_export_submenu->add_action(
GUI::Action::create(
"As &PNG", [&](auto&) {
auto* editor = current_image_editor();
VERIFY(editor);
// TODO: fix bmp on line below?
auto response = FileSystemAccessClient::Client::the().try_save_file(&window, "untitled", "png");
if (response.is_error())
return;
auto preserve_alpha_channel = GUI::MessageBox::show(&window, "Do you wish to preserve transparency?", "Preserve transparency?", GUI::MessageBox::Type::Question, GUI::MessageBox::InputType::YesNo);
auto result = editor->image().export_png_to_file(response.value(), preserve_alpha_channel == GUI::MessageBox::ExecYes);
if (result.is_error())
GUI::MessageBox::show_error(&window, String::formatted("Export to PNG failed: {}", result.error()));
}));
m_export_submenu->set_icon(g_icon_bag.file_export);
file_menu.add_separator();
m_close_image_action = GUI::Action::create("&Close Image", { Mod_Ctrl, Key_W }, g_icon_bag.close_image, [&](auto&) {
auto* active_widget = m_tab_widget->active_widget();
VERIFY(active_widget);
m_tab_widget->on_tab_close_click(*active_widget);
});
file_menu.add_action(*m_close_image_action);
file_menu.add_action(GUI::CommonActions::make_quit_action([this](auto&) {
if (request_close())
GUI::Application::the()->quit();
}));
m_edit_menu = window.add_menu("&Edit");
m_copy_action = GUI::CommonActions::make_copy_action([&](auto&) {
auto* editor = current_image_editor();
VERIFY(editor);
if (!editor->active_layer()) {
dbgln("Cannot copy with no active layer selected");
return;
}
auto bitmap = editor->active_layer()->try_copy_bitmap(editor->selection());
if (!bitmap) {
dbgln("try_copy_bitmap() from Layer failed");
return;
}
GUI::Clipboard::the().set_bitmap(*bitmap);
});
m_copy_merged_action = GUI::Action::create(
"Copy &Merged", { Mod_Ctrl | Mod_Shift, Key_C }, g_icon_bag.edit_copy, [&](auto&) {
auto* editor = current_image_editor();
VERIFY(editor);
auto bitmap = editor->image().try_copy_bitmap(editor->selection());
if (!bitmap) {
dbgln("try_copy_bitmap() from Image failed");
return;
}
GUI::Clipboard::the().set_bitmap(*bitmap);
});
m_paste_action = GUI::CommonActions::make_paste_action([&](auto&) {
auto* editor = current_image_editor();
if (!editor) {
create_image_from_clipboard();
return;
}
auto bitmap = GUI::Clipboard::the().fetch_data_and_type().as_bitmap();
if (!bitmap)
return;
auto layer = PixelPaint::Layer::try_create_with_bitmap(editor->image(), *bitmap, "Pasted layer").release_value_but_fixme_should_propagate_errors();
editor->image().add_layer(*layer);
editor->set_active_layer(layer);
editor->selection().clear();
});
GUI::Clipboard::the().on_change = [&](auto& mime_type) {
m_paste_action->set_enabled(mime_type == "image/x-serenityos");
};
m_paste_action->set_enabled(GUI::Clipboard::the().fetch_mime_type() == "image/x-serenityos");
m_undo_action = GUI::CommonActions::make_undo_action([&](auto&) {
if (auto* editor = current_image_editor())
editor->undo();
});
m_redo_action = GUI::CommonActions::make_redo_action([&](auto&) {
auto* editor = current_image_editor();
VERIFY(editor);
editor->redo();
});
m_edit_menu->add_action(*m_copy_action);
m_edit_menu->add_action(*m_copy_merged_action);
m_edit_menu->add_action(*m_paste_action);
m_edit_menu->add_action(*m_undo_action);
m_edit_menu->add_action(*m_redo_action);
m_edit_menu->add_separator();
m_edit_menu->add_action(GUI::CommonActions::make_select_all_action([&](auto&) {
auto* editor = current_image_editor();
VERIFY(editor);
if (!editor->active_layer())
return;
editor->selection().merge(editor->active_layer()->relative_rect(), PixelPaint::Selection::MergeMode::Set);
}));
m_edit_menu->add_action(GUI::Action::create(
"Clear &Selection", g_icon_bag.clear_selection, [&](auto&) {
auto* editor = current_image_editor();
VERIFY(editor);
editor->selection().clear();
}));
m_edit_menu->add_separator();
m_edit_menu->add_action(GUI::Action::create(
"S&wap Colors", { Mod_None, Key_X }, g_icon_bag.swap_colors, [&](auto&) {
auto* editor = current_image_editor();
VERIFY(editor);
auto old_primary_color = editor->primary_color();
editor->set_primary_color(editor->secondary_color());
editor->set_secondary_color(old_primary_color);
}));
m_edit_menu->add_action(GUI::Action::create(
"&Default Colors", { Mod_None, Key_D }, g_icon_bag.default_colors, [&](auto&) {
auto* editor = current_image_editor();
VERIFY(editor);
editor->set_primary_color(Color::Black);
editor->set_secondary_color(Color::White);
}));
m_edit_menu->add_action(GUI::Action::create(
"&Load Color Palette", g_icon_bag.load_color_palette, [&](auto&) {
auto response = FileSystemAccessClient::Client::the().try_open_file(&window, "Load Color Palette");
if (response.is_error())
return;
auto result = PixelPaint::PaletteWidget::load_palette_file(*response.value());
if (result.is_error()) {
GUI::MessageBox::show_error(&window, String::formatted("Loading color palette failed: {}", result.error()));
return;
}
m_palette_widget->display_color_list(result.value());
}));
m_edit_menu->add_action(GUI::Action::create(
"Sa&ve Color Palette", g_icon_bag.save_color_palette, [&](auto&) {
auto response = FileSystemAccessClient::Client::the().try_save_file(&window, "untitled", "palette");
if (response.is_error())
return;
auto result = PixelPaint::PaletteWidget::save_palette_file(m_palette_widget->colors(), *response.value());
if (result.is_error())
GUI::MessageBox::show_error(&window, String::formatted("Writing color palette failed: {}", result.error()));
}));
m_view_menu = window.add_menu("&View");
m_zoom_in_action = GUI::CommonActions::make_zoom_in_action(
[&](auto&) {
auto* editor = current_image_editor();
VERIFY(editor);
editor->scale_by(0.1f);
});
m_zoom_out_action = GUI::CommonActions::make_zoom_out_action(
[&](auto&) {
auto* editor = current_image_editor();
VERIFY(editor);
editor->scale_by(-0.1f);
});
m_reset_zoom_action = GUI::CommonActions::make_reset_zoom_action(
[&](auto&) {
if (auto* editor = current_image_editor())
editor->reset_view();
});
m_add_guide_action = GUI::Action::create(
"&Add Guide", g_icon_bag.add_guide, [&](auto&) {
auto dialog = PixelPaint::EditGuideDialog::construct(&window);
if (dialog->exec() != GUI::Dialog::ExecOK)
return;
auto* editor = current_image_editor();
VERIFY(editor);
auto offset = dialog->offset_as_pixel(*editor);
if (!offset.has_value())
return;
editor->add_guide(PixelPaint::Guide::construct(dialog->orientation(), offset.value()));
});
// Save this so other methods can use it
m_show_guides_action = GUI::Action::create_checkable(
"Show &Guides", [&](auto& action) {
Config::write_bool("PixelPaint", "Guides", "Show", action.is_checked());
auto* editor = current_image_editor();
VERIFY(editor);
editor->set_guide_visibility(action.is_checked());
});
m_show_guides_action->set_checked(Config::read_bool("PixelPaint", "Guides", "Show", true));
m_view_menu->add_action(*m_zoom_in_action);
m_view_menu->add_action(*m_zoom_out_action);
m_view_menu->add_action(*m_reset_zoom_action);
m_view_menu->add_action(GUI::Action::create(
"Fit Image To &View", [&](auto&) {
auto* editor = current_image_editor();
VERIFY(editor);
editor->fit_image_to_view();
}));
m_view_menu->add_separator();
m_view_menu->add_action(*m_add_guide_action);
m_view_menu->add_action(*m_show_guides_action);
m_view_menu->add_action(GUI::Action::create(
"&Clear Guides", g_icon_bag.clear_guides, [&](auto&) {
auto* editor = current_image_editor();
VERIFY(editor);
editor->clear_guides();
}));
m_view_menu->add_separator();
auto show_pixel_grid_action = GUI::Action::create_checkable(
"Show &Pixel Grid", [&](auto& action) {
Config::write_bool("PixelPaint", "PixelGrid", "Show", action.is_checked());
auto* editor = current_image_editor();
VERIFY(editor);
editor->set_pixel_grid_visibility(action.is_checked());
});
show_pixel_grid_action->set_checked(Config::read_bool("PixelPaint", "PixelGrid", "Show", true));
m_view_menu->add_action(*show_pixel_grid_action);
m_show_rulers_action = GUI::Action::create_checkable(
"Show R&ulers", { Mod_Ctrl, Key_R }, [&](auto& action) {
Config::write_bool("PixelPaint", "Rulers", "Show", action.is_checked());
auto* editor = current_image_editor();
VERIFY(editor);
editor->set_ruler_visibility(action.is_checked());
});
m_show_rulers_action->set_checked(Config::read_bool("PixelPaint", "Rulers", "Show", true));
m_view_menu->add_action(*m_show_rulers_action);
m_show_active_layer_boundary_action = GUI::Action::create_checkable(
"Show Active Layer &Boundary", [&](auto& action) {
Config::write_bool("PixelPaint", "ImageEditor", "ShowActiveLayerBoundary", action.is_checked());
auto* editor = current_image_editor();
VERIFY(editor);
editor->set_show_active_layer_boundary(action.is_checked());
});
m_show_active_layer_boundary_action->set_checked(Config::read_bool("PixelPaint", "ImageEditor", "ShowActiveLayerBoundary", true));
m_view_menu->add_action(*m_show_active_layer_boundary_action);
m_tool_menu = window.add_menu("&Tool");
m_toolbox->for_each_tool([&](auto& tool) {
if (tool.action())
m_tool_menu->add_action(*tool.action());
return IterationDecision::Continue;
});
m_image_menu = window.add_menu("&Image");
m_image_menu->add_action(GUI::Action::create(
"Flip &Vertically", g_icon_bag.edit_flip_vertical, [&](auto&) {
auto* editor = current_image_editor();
VERIFY(editor);
editor->image().flip(Gfx::Orientation::Vertical);
}));
m_image_menu->add_action(GUI::Action::create(
"Flip &Horizontally", g_icon_bag.edit_flip_horizontal, [&](auto&) {
auto* editor = current_image_editor();
VERIFY(editor);
editor->image().flip(Gfx::Orientation::Horizontal);
}));
m_image_menu->add_separator();
m_image_menu->add_action(GUI::CommonActions::make_rotate_counterclockwise_action(
[&](auto&) {
auto* editor = current_image_editor();
VERIFY(editor);
editor->image().rotate(Gfx::RotationDirection::CounterClockwise);
}));
m_image_menu->add_action(GUI::CommonActions::make_rotate_clockwise_action(
[&](auto&) {
auto* editor = current_image_editor();
VERIFY(editor);
editor->image().rotate(Gfx::RotationDirection::Clockwise);
}));
m_image_menu->add_separator();
m_image_menu->add_action(GUI::Action::create(
"&Crop To Selection", g_icon_bag.crop, [&](auto&) {
auto* editor = current_image_editor();
VERIFY(editor);
// FIXME: disable this action if there is no selection
if (editor->selection().is_empty())
return;
auto crop_rect = editor->image().rect().intersected(editor->selection().bounding_rect());
editor->image().crop(crop_rect);
editor->selection().clear();
}));
m_layer_menu = window.add_menu("&Layer");
m_layer_menu->add_action(GUI::Action::create(
"New &Layer...", { Mod_Ctrl | Mod_Shift, Key_N }, g_icon_bag.new_layer, [&](auto&) {
auto* editor = current_image_editor();
VERIFY(editor);
auto dialog = PixelPaint::CreateNewLayerDialog::construct(editor->image().size(), &window);
if (dialog->exec() == GUI::Dialog::ExecOK) {
auto layer_or_error = PixelPaint::Layer::try_create_with_size(editor->image(), dialog->layer_size(), dialog->layer_name());
if (layer_or_error.is_error()) {
GUI::MessageBox::show_error(&window, String::formatted("Unable to create layer with size {}", dialog->size()));
return;
}
editor->image().add_layer(layer_or_error.release_value());
editor->layers_did_change();
m_layer_list_widget->select_top_layer();
}
}));
m_layer_menu->add_separator();
m_layer_menu->add_action(GUI::Action::create(
"Add M&ask", { Mod_Ctrl | Mod_Shift, Key_M }, nullptr, [&](auto&) {
auto* editor = current_image_editor();
VERIFY(editor);
auto active_layer = editor->active_layer();
if (!active_layer)
return;
active_layer->create_mask();
editor->update();
m_layer_list_widget->repaint();
}));
m_layer_menu->add_separator();
m_layer_menu->add_action(GUI::Action::create(
"Select &Previous Layer", { 0, Key_PageUp }, g_icon_bag.previous_layer, [&](auto&) {
m_layer_list_widget->cycle_through_selection(1);
}));
m_layer_menu->add_action(GUI::Action::create(
"Select &Next Layer", { 0, Key_PageDown }, g_icon_bag.next_layer, [&](auto&) {
m_layer_list_widget->cycle_through_selection(-1);
}));
m_layer_menu->add_action(GUI::Action::create(
"Select &Top Layer", { 0, Key_Home }, g_icon_bag.top_layer, [&](auto&) {
m_layer_list_widget->select_top_layer();
}));
m_layer_menu->add_action(GUI::Action::create(
"Select B&ottom Layer", { 0, Key_End }, g_icon_bag.bottom_layer, [&](auto&) {
m_layer_list_widget->select_bottom_layer();
}));
m_layer_menu->add_separator();
m_layer_menu->add_action(GUI::CommonActions::make_move_to_front_action(
[&](auto&) {
auto* editor = current_image_editor();
VERIFY(editor);
auto active_layer = editor->active_layer();
if (!active_layer)
return;
editor->image().move_layer_to_front(*active_layer);
editor->layers_did_change();
}));
m_layer_menu->add_action(GUI::CommonActions::make_move_to_back_action(
[&](auto&) {
auto* editor = current_image_editor();
VERIFY(editor);
auto active_layer = editor->active_layer();
if (!active_layer)
return;
editor->image().move_layer_to_back(*active_layer);
editor->layers_did_change();
}));
m_layer_menu->add_separator();
m_layer_menu->add_action(GUI::Action::create(
"Move Active Layer &Up", { Mod_Ctrl, Key_PageUp }, g_icon_bag.active_layer_up, [&](auto&) {
auto* editor = current_image_editor();
VERIFY(editor);
auto active_layer = editor->active_layer();
if (!active_layer)
return;
editor->image().move_layer_up(*active_layer);
}));
m_layer_menu->add_action(GUI::Action::create(
"Move Active Layer &Down", { Mod_Ctrl, Key_PageDown }, g_icon_bag.active_layer_down, [&](auto&) {
auto* editor = current_image_editor();
VERIFY(editor);
auto active_layer = editor->active_layer();
if (!active_layer)
return;
editor->image().move_layer_down(*active_layer);
}));
m_layer_menu->add_separator();
m_layer_menu->add_action(GUI::Action::create(
"&Remove Active Layer", { Mod_Ctrl, Key_D }, g_icon_bag.delete_layer, [&](auto&) {
auto* editor = current_image_editor();
VERIFY(editor);
auto active_layer = editor->active_layer();
if (!active_layer)
return;
auto active_layer_index = editor->image().index_of(*active_layer);
editor->image().remove_layer(*active_layer);
if (editor->image().layer_count()) {
auto& next_active_layer = editor->image().layer(active_layer_index > 0 ? active_layer_index - 1 : 0);
editor->set_active_layer(&next_active_layer);
} else {
auto layer = PixelPaint::Layer::try_create_with_size(editor->image(), editor->image().size(), "Background").release_value_but_fixme_should_propagate_errors();
editor->image().add_layer(move(layer));
editor->layers_did_change();
m_layer_list_widget->select_top_layer();
}
}));
m_layer_list_widget->on_context_menu_request = [&](auto& event) {
m_layer_menu->popup(event.screen_position());
};
m_layer_menu->add_separator();
m_layer_menu->add_action(GUI::Action::create(
"Fl&atten Image", { Mod_Ctrl, Key_F }, [&](auto&) {
auto* editor = current_image_editor();
VERIFY(editor);
editor->image().flatten_all_layers();
editor->did_complete_action();
}));
m_layer_menu->add_action(GUI::Action::create(
"&Merge Visible", { Mod_Ctrl, Key_M }, g_icon_bag.merge_visible, [&](auto&) {
auto* editor = current_image_editor();
VERIFY(editor);
editor->image().merge_visible_layers();
editor->did_complete_action();
}));
m_layer_menu->add_action(GUI::Action::create(
"Merge &Active Layer Up", g_icon_bag.merge_active_layer_up, [&](auto&) {
auto* editor = current_image_editor();
VERIFY(editor);
auto active_layer = editor->active_layer();
if (!active_layer)
return;
editor->image().merge_active_layer_up(*active_layer);
editor->did_complete_action();
}));
m_layer_menu->add_action(GUI::Action::create(
"M&erge Active Layer Down", { Mod_Ctrl, Key_E }, g_icon_bag.merge_active_layer_down, [&](auto&) {
auto* editor = current_image_editor();
VERIFY(editor);
auto active_layer = editor->active_layer();
if (!active_layer)
return;
editor->image().merge_active_layer_down(*active_layer);
editor->did_complete_action();
}));
m_filter_menu = window.add_menu("&Filter");
m_filter_menu->add_action(GUI::Action::create("Filter &Gallery", g_icon_bag.filter, [&](auto&) {
auto* editor = current_image_editor();
VERIFY(editor);
auto dialog = PixelPaint::FilterGallery::construct(&window, editor);
if (dialog->exec() != GUI::Dialog::ExecOK)
return;
}));
m_filter_menu->add_separator();
m_filter_menu->add_action(GUI::Action::create("Generic 5x5 &Convolution", [&](auto&) {
auto* editor = current_image_editor();
VERIFY(editor);
if (auto* layer = editor->active_layer()) {
Gfx::GenericConvolutionFilter<5> filter;
if (auto parameters = PixelPaint::FilterParameters<Gfx::GenericConvolutionFilter<5>>::get(&window)) {
filter.apply(layer->content_bitmap(), layer->rect(), layer->content_bitmap(), layer->rect(), *parameters);
layer->did_modify_bitmap(layer->rect());
editor->did_complete_action();
}
}
}));
auto& help_menu = window.add_menu("&Help");
help_menu.add_action(GUI::CommonActions::make_about_action("Pixel Paint", GUI::Icon::default_icon("app-pixel-paint"), &window));
auto& toolbar = *find_descendant_of_type_named<GUI::Toolbar>("toolbar");
toolbar.add_action(*m_new_image_action);
toolbar.add_action(*m_open_image_action);
toolbar.add_action(*m_save_image_action);
toolbar.add_separator();
toolbar.add_action(*m_copy_action);
toolbar.add_action(*m_paste_action);
toolbar.add_action(*m_undo_action);
toolbar.add_action(*m_redo_action);
toolbar.add_separator();
toolbar.add_action(*m_zoom_in_action);
toolbar.add_action(*m_zoom_out_action);
toolbar.add_action(*m_reset_zoom_action);
m_zoom_combobox = toolbar.add<GUI::ComboBox>();
m_zoom_combobox->set_max_width(75);
m_zoom_combobox->set_model(*GUI::ItemListModel<String>::create(s_suggested_zoom_levels));
m_zoom_combobox->on_change = [this](String const& value, GUI::ModelIndex const& index) {
auto* editor = current_image_editor();
VERIFY(editor);
if (index.is_valid()) {
switch (index.row()) {
case s_zoom_level_fit_width:
editor->fit_image_to_view(ImageEditor::FitType::Width);
return;
case s_zoom_level_fit_height:
editor->fit_image_to_view(ImageEditor::FitType::Height);
return;
case s_zoom_level_fit_image:
editor->fit_image_to_view(ImageEditor::FitType::Both);
return;
}
}
auto zoom_level_optional = value.view().trim("%"sv, TrimMode::Right).to_int();
if (!zoom_level_optional.has_value()) {
// Indicate that a parse-error occurred by resetting the text to the current state.
editor->on_scale_change(editor->scale());
return;
}
editor->set_scale(zoom_level_optional.value() * 1.0f / 100);
// If the selected zoom level got clamped, or a "fit to …" level was selected,
// there is a chance that the new scale is identical to the old scale.
// In these cases, we need to manually reset the text:
editor->on_scale_change(editor->scale());
};
m_zoom_combobox->on_return_pressed = [this]() {
m_zoom_combobox->on_change(m_zoom_combobox->text(), GUI::ModelIndex());
};
}
void MainWidget::set_actions_enabled(bool enabled)
{
m_save_image_action->set_enabled(enabled);
m_save_image_as_action->set_enabled(enabled);
m_close_image_action->set_enabled(enabled);
m_export_submenu->set_children_actions_enabled(enabled);
m_edit_menu->set_children_actions_enabled(enabled);
m_paste_action->set_enabled(true);
m_view_menu->set_children_actions_enabled(enabled);
m_layer_menu->set_children_actions_enabled(enabled);
m_image_menu->set_children_actions_enabled(enabled);
m_tool_menu->set_children_actions_enabled(enabled);
m_filter_menu->set_children_actions_enabled(enabled);
m_zoom_combobox->set_enabled(enabled);
}
void MainWidget::open_image(Core::File& file)
{
auto try_load = m_loader.try_load_from_file(file);
if (try_load.is_error()) {
GUI::MessageBox::show_error(window(), String::formatted("Unable to open file: {}, {}", file.filename(), try_load.error()));
return;
}
auto& image = *m_loader.release_image();
auto& editor = create_new_editor(image);
editor.set_loaded_from_image(m_loader.is_raw_image());
editor.set_path(file.filename());
editor.undo_stack().set_current_unmodified();
m_layer_list_widget->set_image(&image);
}
void MainWidget::create_default_image()
{
auto image = Image::try_create_with_size({ 510, 356 }).release_value_but_fixme_should_propagate_errors();
auto bg_layer = Layer::try_create_with_size(*image, image->size(), "Background").release_value_but_fixme_should_propagate_errors();
image->add_layer(*bg_layer);
bg_layer->content_bitmap().fill(Color::White);
m_layer_list_widget->set_image(image);
auto& editor = create_new_editor(*image);
editor.set_active_layer(bg_layer);
editor.undo_stack().set_current_unmodified();
}
void MainWidget::create_image_from_clipboard()
{
auto bitmap = GUI::Clipboard::the().fetch_data_and_type().as_bitmap();
if (!bitmap) {
GUI::MessageBox::show(window(), "There is no image in a clipboard to paste.", "PixelPaint", GUI::MessageBox::Type::Warning);
return;
}
auto image = PixelPaint::Image::try_create_with_size(bitmap->size()).release_value_but_fixme_should_propagate_errors();
auto layer = PixelPaint::Layer::try_create_with_bitmap(image, *bitmap, "Pasted layer").release_value_but_fixme_should_propagate_errors();
image->add_layer(*layer);
auto& editor = create_new_editor(*image);
editor.set_title("Untitled");
m_layer_list_widget->set_image(image);
m_layer_list_widget->set_selected_layer(layer);
}
bool MainWidget::request_close()
{
while (!m_tab_widget->children().is_empty()) {
auto* editor = current_image_editor();
VERIFY(editor);
if (!editor->request_close())
return false;
m_tab_widget->remove_tab(*m_tab_widget->active_widget());
}
return true;
}
ImageEditor* MainWidget::current_image_editor()
{
if (!m_tab_widget->active_widget())
return nullptr;
return verify_cast<PixelPaint::ImageEditor>(m_tab_widget->active_widget());
}
ImageEditor& MainWidget::create_new_editor(NonnullRefPtr<Image> image)
{
auto& image_editor = m_tab_widget->add_tab<PixelPaint::ImageEditor>("Untitled", image);
image_editor.on_active_layer_change = [&](auto* layer) {
if (current_image_editor() != &image_editor)
return;
m_layer_list_widget->set_selected_layer(layer);
m_layer_properties_widget->set_layer(layer);
};
image_editor.on_title_change = [&](auto const& title) {
m_tab_widget->set_tab_title(image_editor, title);
};
image_editor.on_image_mouse_position_change = [&](auto const& mouse_position) {
auto const& image_size = current_image_editor()->image().size();
auto image_rectangle = Gfx::IntRect { 0, 0, image_size.width(), image_size.height() };
if (image_rectangle.contains(mouse_position)) {
m_statusbar->set_override_text(mouse_position.to_string());
} else {
m_statusbar->set_override_text({});
}
};
image_editor.on_leave = [&]() {
m_statusbar->set_override_text({});
};
image_editor.on_set_guide_visibility = [&](bool show_guides) {
m_show_guides_action->set_checked(show_guides);
};
image_editor.on_set_ruler_visibility = [&](bool show_rulers) {
m_show_rulers_action->set_checked(show_rulers);
};
image_editor.on_scale_change = [this](float scale) {
m_zoom_combobox->set_text(String::formatted("{}%", roundf(scale * 100)));
};
if (image->layer_count())
image_editor.set_active_layer(&image->layer(0));
if (!m_loader.is_raw_image()) {
m_loader.json_metadata().for_each([&](JsonValue const& value) {
if (!value.is_object())
return;
auto& json_object = value.as_object();
auto orientation_value = json_object.get("orientation"sv);
if (!orientation_value.is_string())
return;
auto offset_value = json_object.get("offset"sv);
if (!offset_value.is_number())
return;
auto orientation_string = orientation_value.as_string();
PixelPaint::Guide::Orientation orientation;
if (orientation_string == "horizontal"sv)
orientation = PixelPaint::Guide::Orientation::Horizontal;
else if (orientation_string == "vertical"sv)
orientation = PixelPaint::Guide::Orientation::Vertical;
else
return;
image_editor.add_guide(PixelPaint::Guide::construct(orientation, offset_value.to_number<float>()));
});
}
m_tab_widget->set_active_widget(&image_editor);
image_editor.set_focus(true);
image_editor.fit_image_to_view();
m_tool_properties_widget->set_enabled(true);
set_actions_enabled(true);
return image_editor;
}
void MainWidget::drop_event(GUI::DropEvent& event)
{
if (!event.mime_data().has_urls())
return;
event.accept();
if (event.mime_data().urls().is_empty())
return;
for (auto& url : event.mime_data().urls()) {
if (url.protocol() != "file")
continue;
auto response = FileSystemAccessClient::Client::the().try_request_file(window(), url.path(), Core::OpenMode::ReadOnly);
if (response.is_error())
return;
open_image(response.value());
}
}
}
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