72 lines
2.4 KiB
C
72 lines
2.4 KiB
C
#include <gtk-layer-shell/gtk-layer-shell.h>
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#include <gtk/gtk.h>
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#include <stdio.h>
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struct config {
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char *title;
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char *subtitle;
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};
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void draw_window(GdkMonitor *monitor, char *text, GtkApplication *app) {
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GtkWindow *gtk_window = GTK_WINDOW(gtk_application_window_new(app));
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gtk_layer_init_for_window(gtk_window);
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gtk_layer_set_layer(gtk_window, GTK_LAYER_SHELL_LAYER_TOP);
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// gtk layer shell options
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gtk_layer_set_margin(gtk_window, GTK_LAYER_SHELL_EDGE_RIGHT, 40);
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gtk_layer_set_margin(gtk_window, GTK_LAYER_SHELL_EDGE_BOTTOM, 40);
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static const gboolean anchors[] = {FALSE, TRUE, FALSE, TRUE};
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for (int i = 0; i < GTK_LAYER_SHELL_EDGE_ENTRY_NUMBER; i++) {
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gtk_layer_set_anchor(gtk_window, i, anchors[i]);
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}
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gtk_layer_set_monitor(gtk_window, monitor);
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// set window background to transparent
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GtkCssProvider *css_provider = gtk_css_provider_new();
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char *css = "window {background-color: transparent;}";
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gtk_css_provider_load_from_data(css_provider, css, strlen(css), NULL);
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GtkStyleContext *context = gtk_widget_get_style_context(GTK_WIDGET(gtk_window));
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gtk_style_context_add_provider(context, GTK_STYLE_PROVIDER(css_provider), GTK_STYLE_PROVIDER_PRIORITY_USER);
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// render label
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GtkWidget *label = gtk_label_new("");
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gtk_label_set_markup(GTK_LABEL(label), text);
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gtk_container_add(GTK_CONTAINER(gtk_window), label);
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gtk_container_set_border_width(GTK_CONTAINER(gtk_window), 12);
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gtk_widget_show_all(GTK_WIDGET(gtk_window));
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}
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static void activate(GtkApplication *app, void *data)
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{
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struct config *conf = (struct config*) data;
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int title_len = strlen(conf->title);
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int subtitle_len = strlen(conf->subtitle);
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int len = 100+title_len+subtitle_len;
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char text[len];
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snprintf(text, len, "<span alpha=\"50%\" font_desc=\"24.0\">%s</span>\n<span alpha=\"50%\" font_desc=\"16\">%s</span>", conf->title, conf->subtitle);
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GdkDisplay *display = gdk_display_get_default();
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for (int i = 0; i < gdk_display_get_n_monitors(display); i++) {
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GdkMonitor *monitor = gdk_display_get_monitor(display, i);
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draw_window(monitor, text, app);
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}
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}
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int main(int argc, char **argv)
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{
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struct config conf;
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conf.title = "Activate Linux";
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conf.subtitle = "Go to Settings to activate Linux.";
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GtkApplication *app = gtk_application_new(NULL, G_APPLICATION_FLAGS_NONE);
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g_signal_connect(app, "activate", G_CALLBACK(activate), (void *) &conf);
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int status = g_application_run(G_APPLICATION(app), 0, NULL);
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g_object_unref(app);
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return status;
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}
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