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OMEMO: Make QR code "scalable" in accordance with GDK_SCALE

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The QR code is now generated at the required resolution instead of being
stretched for display with linear filtering.
This commit is contained in:
mjk 2022-02-25 23:06:57 +00:00
parent d3ae541673
commit 98adfa332a
1 changed files with 4 additions and 2 deletions
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6
plugins/omemo/src/ui/contact_details_dialog.vala
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@ -95,8 +95,10 @@ public class ContactDetailsDialog : Gtk.Dialog {
const int QUIET_ZONE_MODULES = 4; // MUST be at least 4
const int MODULE_SIZE_PX = 4; // arbitrary
Pixbuf qr_pixbuf = new QRcode(@"xmpp:$(account.bare_jid)?omemo-sid-$(sid)=$(fingerprint)", 2).to_pixbuf(MODULE_SIZE_PX);
qrcode_image.set_from_pixbuf(qr_pixbuf);
var qr_pixbuf = new QRcode(@"xmpp:$(account.bare_jid)?omemo-sid-$(sid)=$(fingerprint)", 2)
.to_pixbuf(MODULE_SIZE_PX * qrcode_image.scale_factor);
qrcode_image.set_from_surface(
Gdk.cairo_surface_create_from_pixbuf(qr_pixbuf,0,get_window()));
qrcode_image.margin = QUIET_ZONE_MODULES*MODULE_SIZE_PX;
qrcode_popover.get_style_context().add_class("qrcode-container");