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Code Issues Activity Actions

ImageViewer: Allow choice between nearest neighbor and bilinear scaling

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Currently, ImageViewer always uses nearest neighbor scaling.
This allows the user to choose whether to use nearest neighbor
or bilinear scaling. It current defaults to nearest neighbor.
This commit is contained in:
Luke Wilde 2021-12-29 15:37:04 +00:00 • committed by Andreas Kling
parent e179cf2540
commit 8eb01c0b11
3 changed files with 33 additions and 2 deletions
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23
Userland/Applications/ImageViewer/main.cpp
View file

@ -11,6 +11,7 @@
#include <LibCore/System.h>
#include <LibDesktop/Launcher.h>
#include <LibGUI/Action.h>
#include <LibGUI/ActionGroup.h>
#include <LibGUI/Application.h>
#include <LibGUI/BoxLayout.h>
#include <LibGUI/Clipboard.h>
@ -225,6 +226,16 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
if (widget.bitmap())
GUI::Clipboard::the().set_bitmap(*widget.bitmap());
});
auto nearest_neighbor_action = GUI::Action::create_checkable("&Nearest Neighbor", [&](auto&) {
widget.set_scaling_mode(Gfx::Painter::ScalingMode::NearestNeighbor);
});
nearest_neighbor_action->set_checked(true);
auto bilinear_action = GUI::Action::create_checkable("&Bilinear", [&](auto&) {
widget.set_scaling_mode(Gfx::Painter::ScalingMode::BilinearBlend);
});
widget.on_image_change = [&](const Gfx::Bitmap* bitmap) {
bool should_enable_image_actions = (bitmap != nullptr);
bool should_enable_forward_actions = (widget.is_next_available() && should_enable_image_actions);
@ -287,6 +298,18 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
view_menu.add_action(zoom_in_action);
view_menu.add_action(reset_zoom_action);
view_menu.add_action(zoom_out_action);
view_menu.add_separator();
auto& scaling_mode_menu = view_menu.add_submenu("&Scaling Mode");
auto scaling_mode_group = make<GUI::ActionGroup>();
scaling_mode_group->set_exclusive(true);
scaling_mode_group->add_action(*nearest_neighbor_action);
scaling_mode_group->add_action(*bilinear_action);
scaling_mode_menu.add_action(nearest_neighbor_action);
scaling_mode_menu.add_action(bilinear_action);
view_menu.add_separator();
view_menu.add_action(hide_show_toolbar_action);