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ladybird/Userland/Applications/PixelPaint/MainWidget.cpp
Mustafa Quraish c03f271bbf PixelPaint: Ask about unsaved changes for all tabs on close 
Now, when trying to close the application, there is a separate prompt
for each open tab with unsaved changes. Each tab is closed after it is
handled appropriately (assuming the user didn't Cancel), this makes it
so that the message box is always asking about the currently active tab,
allowing the user to see that the image contains.

If at any point the user presses "Cancel", all remaining tabs are kept
open.
2022-01-05 12:08:20 +01:00

890 lines
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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/Bitmap.h>
namespace PixelPaint {
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) {
if (auto* editor = current_image_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) {
if (auto* editor = current_image_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) {
if (request_close_editor()) {
auto& image_editor = verify_cast<PixelPaint::ImageEditor>(widget);
m_tab_widget->deferred_invoke([&] {
m_tab_widget->remove_tab(image_editor);
if (m_tab_widget->children().size() == 1) {
m_layer_list_widget->set_image(nullptr);
m_layer_properties_widget->set_layer(nullptr);
}
});
}
};
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_changed(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 }, Gfx::Bitmap::try_load_from_file("/res/icons/16x16/new.png").release_value_but_fixme_should_propagate_errors(), [&](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->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 }, Gfx::Bitmap::try_load_from_file("/res/icons/16x16/new.png").release_value_but_fixme_should_propagate_errors(), [&](auto&) {
create_image_from_clipboard();
});
m_open_image_action = GUI::CommonActions::make_open_action([&](auto&) {
auto result = FileSystemAccessClient::Client::the().open_file(window.window_id());
if (result.error != 0)
return;
open_image_fd(*result.fd, *result.chosen_file);
});
m_save_image_as_action = GUI::CommonActions::make_save_as_action([&](auto&) {
auto* editor = current_image_editor();
if (!editor)
return;
auto save_result = FileSystemAccessClient::Client::the().save_file(window.window_id(), "untitled", "pp");
if (save_result.error != 0)
return;
auto result = editor->save_project_to_fd_and_close(*save_result.fd);
if (result.is_error()) {
GUI::MessageBox::show_error(&window, String::formatted("Could not save {}: {}", *save_result.chosen_file, result.error()));
return;
}
editor->set_path(*save_result.chosen_file);
editor->undo_stack().set_current_unmodified();
});
m_save_image_action = GUI::CommonActions::make_save_action([&](auto&) {
auto* editor = current_image_editor();
if (!editor)
return;
if (editor->path().is_empty()) {
m_save_image_as_action->activate();
return;
}
auto response = FileSystemAccessClient::Client::the().request_file(window.window_id(), editor->path(), Core::OpenMode::Truncate | Core::OpenMode::WriteOnly);
if (response.error != 0)
return;
auto result = editor->save_project_to_fd_and_close(*response.fd);
if (result.is_error()) {
GUI::MessageBox::show_error(&window, String::formatted("Could not save {}: {}", *response.chosen_file, result.error()));
return;
}
editor->undo_stack().set_current_unmodified();
});
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);
auto& export_submenu = file_menu.add_submenu("&Export");
export_submenu.add_action(
GUI::Action::create(
"As &BMP", [&](auto&) {
auto* editor = current_image_editor();
if (!editor)
return;
auto save_result = FileSystemAccessClient::Client::the().save_file(window.window_id(), "untitled", "bmp");
if (save_result.error != 0)
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_fd_and_close(*save_result.fd, preserve_alpha_channel == GUI::MessageBox::ExecYes);
if (result.is_error())
GUI::MessageBox::show_error(&window, String::formatted("Export to BMP failed: {}", result.error()));
}));
export_submenu.add_action(
GUI::Action::create(
"As &PNG", [&](auto&) {
auto* editor = current_image_editor();
auto save_result = FileSystemAccessClient::Client::the().save_file(window.window_id(), "untitled", "png");
if (save_result.error != 0)
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_fd_and_close(*save_result.fd, preserve_alpha_channel == GUI::MessageBox::ExecYes);
if (result.is_error())
GUI::MessageBox::show_error(&window, String::formatted("Export to PNG failed: {}", result.error()));
}));
file_menu.add_separator();
file_menu.add_action(
GUI::Action::create(
"&Close Image", { Mod_Ctrl, Key_W }, [&](auto&) {
auto* active_widget = m_tab_widget->active_widget();
if (!active_widget)
return;
m_tab_widget->on_tab_close_click(*active_widget);
}));
file_menu.add_action(GUI::CommonActions::make_quit_action([this](auto&) {
if (request_close())
GUI::Application::the()->quit();
}));
auto& edit_menu = window.add_menu("&Edit");
m_copy_action = GUI::CommonActions::make_copy_action([&](auto&) {
auto* editor = current_image_editor();
if (!editor)
return;
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 }, Gfx::Bitmap::try_load_from_file("/res/icons/16x16/edit-copy.png").release_value_but_fixme_should_propagate_errors(),
[&](auto&) {
auto* editor = current_image_editor();
if (!editor)
return;
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&) {
if (auto* editor = current_image_editor())
editor->redo();
});
edit_menu.add_action(*m_copy_action);
edit_menu.add_action(*m_copy_merged_action);
edit_menu.add_action(*m_paste_action);
edit_menu.add_action(*m_undo_action);
edit_menu.add_action(*m_redo_action);
edit_menu.add_separator();
edit_menu.add_action(GUI::CommonActions::make_select_all_action([&](auto&) {
auto* editor = current_image_editor();
if (!editor->active_layer())
return;
editor->selection().merge(editor->active_layer()->relative_rect(), PixelPaint::Selection::MergeMode::Set);
}));
edit_menu.add_action(GUI::Action::create(
"Clear &Selection", { Mod_Ctrl | Mod_Shift, Key_A }, [&](auto&) {
if (auto* editor = current_image_editor())
editor->selection().clear();
}));
edit_menu.add_separator();
edit_menu.add_action(GUI::Action::create(
"S&wap Colors", { Mod_None, Key_X }, [&](auto&) {
auto* editor = current_image_editor();
if (!editor)
return;
auto old_primary_color = editor->primary_color();
editor->set_primary_color(editor->secondary_color());
editor->set_secondary_color(old_primary_color);
}));
edit_menu.add_action(GUI::Action::create(
"&Default Colors", { Mod_None, Key_D }, [&](auto&) {
if (auto* editor = current_image_editor()) {
editor->set_primary_color(Color::Black);
editor->set_secondary_color(Color::White);
}
}));
edit_menu.add_action(GUI::Action::create(
"&Load Color Palette", [&](auto&) {
auto open_result = FileSystemAccessClient::Client::the().open_file(window.window_id(), "Load Color Palette");
if (open_result.error != 0)
return;
auto result = PixelPaint::PaletteWidget::load_palette_fd_and_close(*open_result.fd);
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());
}));
edit_menu.add_action(GUI::Action::create(
"Sa&ve Color Palette", [&](auto&) {
auto save_result = FileSystemAccessClient::Client::the().save_file(window.window_id(), "untitled", "palette");
if (save_result.error != 0)
return;
auto result = PixelPaint::PaletteWidget::save_palette_fd_and_close(m_palette_widget->colors(), *save_result.fd);
if (result.is_error())
GUI::MessageBox::show_error(&window, String::formatted("Writing color palette failed: {}", result.error()));
}));
auto& view_menu = window.add_menu("&View");
m_zoom_in_action = GUI::CommonActions::make_zoom_in_action(
[&](auto&) {
if (auto* editor = current_image_editor())
editor->scale_by(0.1f);
});
m_zoom_out_action = GUI::CommonActions::make_zoom_out_action(
[&](auto&) {
if (auto* editor = current_image_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_scale_and_position();
});
m_add_guide_action = GUI::Action::create(
"&Add Guide", [&](auto&) {
auto dialog = PixelPaint::EditGuideDialog::construct(&window);
if (dialog->exec() != GUI::Dialog::ExecOK)
return;
if (auto* editor = current_image_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());
if (auto* editor = current_image_editor()) {
editor->set_guide_visibility(action.is_checked());
}
});
m_show_guides_action->set_checked(Config::read_bool("PixelPaint", "Guides", "Show", true));
view_menu.add_action(*m_zoom_in_action);
view_menu.add_action(*m_zoom_out_action);
view_menu.add_action(*m_reset_zoom_action);
view_menu.add_action(GUI::Action::create(
"&Fit Image To View", [&](auto&) {
if (auto* editor = current_image_editor())
editor->fit_image_to_view();
}));
view_menu.add_separator();
view_menu.add_action(*m_add_guide_action);
view_menu.add_action(*m_show_guides_action);
view_menu.add_action(GUI::Action::create(
"&Clear Guides", [&](auto&) {
if (auto* editor = current_image_editor())
editor->clear_guides();
}));
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());
if (auto* editor = current_image_editor())
editor->set_pixel_grid_visibility(action.is_checked());
});
show_pixel_grid_action->set_checked(Config::read_bool("PixelPaint", "PixelGrid", "Show", true));
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());
if (auto* editor = current_image_editor()) {
editor->set_ruler_visibility(action.is_checked());
}
});
m_show_rulers_action->set_checked(Config::read_bool("PixelPaint", "Rulers", "Show", true));
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());
if (auto* editor = current_image_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));
view_menu.add_action(*m_show_active_layer_boundary_action);
auto& tool_menu = window.add_menu("&Tool");
m_toolbox->for_each_tool([&](auto& tool) {
if (tool.action())
tool_menu.add_action(*tool.action());
return IterationDecision::Continue;
});
auto& image_menu = window.add_menu("&Image");
image_menu.add_action(GUI::Action::create(
"Flip &Vertically", [&](auto&) {
auto* editor = current_image_editor();
if (!editor)
return;
editor->image().flip(Gfx::Orientation::Vertical);
}));
image_menu.add_action(GUI::Action::create(
"Flip &Horizontally", [&](auto&) {
auto* editor = current_image_editor();
if (!editor)
return;
editor->image().flip(Gfx::Orientation::Horizontal);
}));
image_menu.add_separator();
image_menu.add_action(GUI::Action::create(
"Rotate &Left", [&](auto&) {
auto* editor = current_image_editor();
if (!editor)
return;
editor->image().rotate(Gfx::RotationDirection::CounterClockwise);
}));
image_menu.add_action(GUI::Action::create(
"Rotate &Right", [&](auto&) {
auto* editor = current_image_editor();
if (!editor)
return;
editor->image().rotate(Gfx::RotationDirection::Clockwise);
}));
image_menu.add_separator();
image_menu.add_action(GUI::Action::create(
"&Crop To Selection", [&](auto&) {
auto* editor = current_image_editor();
// FIXME: disable this action if there is no selection
if (!editor || editor->selection().is_empty())
return;
auto crop_rect = editor->selection().bounding_rect();
editor->image().crop(crop_rect);
editor->selection().clear();
}));
auto& layer_menu = window.add_menu("&Layer");
layer_menu.add_action(GUI::Action::create(
"New &Layer...", { Mod_Ctrl | Mod_Shift, Key_N }, Gfx::Bitmap::try_load_from_file("/res/icons/16x16/new-layer.png").release_value_but_fixme_should_propagate_errors(), [&](auto&) {
auto* editor = current_image_editor();
if (!editor)
return;
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();
}
}));
layer_menu.add_separator();
layer_menu.add_action(GUI::Action::create(
"Select &Previous Layer", { 0, Key_PageUp }, [&](auto&) {
m_layer_list_widget->cycle_through_selection(1);
}));
layer_menu.add_action(GUI::Action::create(
"Select &Next Layer", { 0, Key_PageDown }, [&](auto&) {
m_layer_list_widget->cycle_through_selection(-1);
}));
layer_menu.add_action(GUI::Action::create(
"Select &Top Layer", { 0, Key_Home }, Gfx::Bitmap::try_load_from_file("/res/icons/16x16/top-layer.png").release_value_but_fixme_should_propagate_errors(), [&](auto&) {
m_layer_list_widget->select_top_layer();
}));
layer_menu.add_action(GUI::Action::create(
"Select B&ottom Layer", { 0, Key_End }, Gfx::Bitmap::try_load_from_file("/res/icons/16x16/bottom-layer.png").release_value_but_fixme_should_propagate_errors(), [&](auto&) {
m_layer_list_widget->select_bottom_layer();
}));
layer_menu.add_separator();
layer_menu.add_action(GUI::CommonActions::make_move_to_front_action(
[&](auto&) {
auto* editor = current_image_editor();
if (!editor)
return;
auto active_layer = editor->active_layer();
if (!active_layer)
return;
editor->image().move_layer_to_front(*active_layer);
editor->layers_did_change();
}));
layer_menu.add_action(GUI::CommonActions::make_move_to_back_action(
[&](auto&) {
auto* editor = current_image_editor();
if (!editor)
return;
auto active_layer = editor->active_layer();
if (!active_layer)
return;
editor->image().move_layer_to_back(*active_layer);
editor->layers_did_change();
}));
layer_menu.add_separator();
layer_menu.add_action(GUI::Action::create(
"Move Active Layer &Up", { Mod_Ctrl, Key_PageUp }, [&](auto&) {
auto* editor = current_image_editor();
if (!editor)
return;
auto active_layer = editor->active_layer();
if (!active_layer)
return;
editor->image().move_layer_up(*active_layer);
}));
layer_menu.add_action(GUI::Action::create(
"Move Active Layer &Down", { Mod_Ctrl, Key_PageDown }, [&](auto&) {
auto* editor = current_image_editor();
if (!editor)
return;
auto active_layer = editor->active_layer();
if (!active_layer)
return;
editor->image().move_layer_down(*active_layer);
}));
layer_menu.add_separator();
layer_menu.add_action(GUI::Action::create(
"&Remove Active Layer", { Mod_Ctrl, Key_D }, Gfx::Bitmap::try_load_from_file("/res/icons/16x16/delete.png").release_value_but_fixme_should_propagate_errors(), [&](auto&) {
auto* editor = current_image_editor();
if (!editor)
return;
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) {
layer_menu.popup(event.screen_position());
};
layer_menu.add_separator();
layer_menu.add_action(GUI::Action::create(
"Fl&atten Image", { Mod_Ctrl, Key_F }, [&](auto&) {
auto* editor = current_image_editor();
if (!editor)
return;
editor->image().flatten_all_layers();
editor->did_complete_action();
}));
layer_menu.add_action(GUI::Action::create(
"&Merge Visible", { Mod_Ctrl, Key_M }, [&](auto&) {
auto* editor = current_image_editor();
if (!editor)
return;
editor->image().merge_visible_layers();
editor->did_complete_action();
}));
layer_menu.add_action(GUI::Action::create(
"M&erge Active Layer Down", { Mod_Ctrl, Key_E }, [&](auto&) {
auto* editor = current_image_editor();
if (!editor)
return;
auto active_layer = editor->active_layer();
if (!active_layer)
return;
editor->image().merge_active_layer_down(*active_layer);
editor->did_complete_action();
}));
auto& filter_menu = window.add_menu("&Filter");
filter_menu.add_action(GUI::Action::create("Filter &Gallery", [&](auto&) {
auto* editor = current_image_editor();
if (!editor)
return;
auto dialog = PixelPaint::FilterGallery::construct(&window, editor);
if (dialog->exec() != GUI::Dialog::ExecOK)
return;
}));
filter_menu.add_separator();
filter_menu.add_action(GUI::Action::create("Generic 5x5 &Convolution", [&](auto&) {
auto* editor = current_image_editor();
if (!editor)
return;
if (auto* layer = editor->active_layer()) {
Gfx::GenericConvolutionFilter<5> filter;
if (auto parameters = PixelPaint::FilterParameters<Gfx::GenericConvolutionFilter<5>>::get(&window)) {
filter.apply(layer->bitmap(), layer->rect(), layer->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_as_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();
if (editor == nullptr)
return;
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::Image);
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_changed(editor->scale());
return;
}
editor->set_absolute_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_changed(editor->scale());
};
m_zoom_combobox->on_return_pressed = [this]() {
m_zoom_combobox->on_change(m_zoom_combobox->text(), GUI::ModelIndex());
};
}
void MainWidget::open_image_fd(int fd, String const& path)
{
auto try_load = m_loader.try_load_from_fd_and_close(fd, path);
if (try_load.is_error()) {
GUI::MessageBox::show_error(window(), String::formatted("Unable to open file: {}, {}", path, try_load.error()));
return;
}
auto& image = *m_loader.release_image();
auto& editor = create_new_editor(image);
editor.set_path(path);
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->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_editor()
{
auto* editor = current_image_editor();
VERIFY(editor);
if (!editor->undo_stack().is_current_modified()) {
return true;
}
auto result = GUI::MessageBox::ask_about_unsaved_changes(window(), editor->path(), editor->undo_stack().last_unmodified_timestamp());
if (result == GUI::MessageBox::ExecYes) {
m_save_image_action->activate();
return true;
}
if (result == GUI::MessageBox::ExecNo)
return true;
return false;
}
bool MainWidget::request_close()
{
while (!m_tab_widget->children().is_empty()) {
if (!request_close_editor())
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_changed = [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();
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 result = FileSystemAccessClient::Client::the().request_file(window()->window_id(), url.path(), Core::OpenMode::ReadOnly);
if (result.error != 0)
continue;
open_image_fd(*result.fd, *result.chosen_file);
}
}
}
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