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Fix blurry tray icons for HiDPI displays #1174

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merged 1 commit into from
Jul 21, 2021
Merged

Fix blurry tray icons for HiDPI displays #1174

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24 changes: 17 additions & 7 deletions src/modules/sni/item.cpp
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Original file line number Diff line number Diff line change
@@ -1,4 +1,5 @@
#include "modules/sni/item.hpp"
#include <gdkmm/general.h>
#include <glibmm/main.h>
#include <spdlog/spdlog.h>
#include <fstream>
Expand Down Expand Up @@ -252,33 +253,42 @@ Glib::RefPtr<Gdk::Pixbuf> Item::extractPixBuf(GVariant* variant) {
}

void Item::updateImage() {
auto scale_factor = image.get_scale_factor();
auto scaled_icon_size = icon_size * scale_factor;

image.set_from_icon_name("image-missing", Gtk::ICON_SIZE_MENU);
image.set_pixel_size(icon_size);
image.set_pixel_size(scaled_icon_size);
if (!icon_name.empty()) {
try {
// Try to find icons specified by path and filename
std::ifstream temp(icon_name);
if (temp.is_open()) {
auto pixbuf = Gdk::Pixbuf::create_from_file(icon_name);

if (pixbuf->gobj() != nullptr) {
// An icon specified by path and filename may be the wrong size for
// the tray
// Keep the aspect ratio and scale to make the height equal to icon_size
// Keep the aspect ratio and scale to make the height equal to scaled_icon_size
// If people have non square icons, assume they want it to grow in width not height
int width = icon_size * pixbuf->get_width() / pixbuf->get_height();
int width = scaled_icon_size * pixbuf->get_width() / pixbuf->get_height();

pixbuf = pixbuf->scale_simple(width, scaled_icon_size, Gdk::InterpType::INTERP_BILINEAR);

pixbuf = pixbuf->scale_simple(width, icon_size, Gdk::InterpType::INTERP_BILINEAR);
image.set(pixbuf);
auto surface = Gdk::Cairo::create_surface_from_pixbuf(pixbuf, 0, image.get_window());
image.set(surface);
}
} else {
image.set(getIconByName(icon_name, icon_size));
auto icon_by_name = getIconByName(icon_name, scaled_icon_size);
auto surface = Gdk::Cairo::create_surface_from_pixbuf(icon_by_name, 0, image.get_window());
image.set(surface);
}
} catch (Glib::Error& e) {
spdlog::error("Item '{}': {}", id, static_cast<std::string>(e.what()));
}
} else if (icon_pixmap) {
// An icon extracted may be the wrong size for the tray
icon_pixmap = icon_pixmap->scale_simple(icon_size, icon_size, Gdk::InterpType::INTERP_BILINEAR);
icon_pixmap = icon_pixmap->scale_simple(icon_size, scaled_icon_size, Gdk::InterpType::INTERP_BILINEAR);
auto surface = Gdk::Cairo::create_surface_from_pixbuf(icon_pixmap, 0, image.get_window());
image.set(icon_pixmap);
}
}
Expand Down