initial commit

Signed-off-by: Kljunas2 <miha@korenjak.si>

.gitignore

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+bin

LICENSE.md

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+The MIT License (MIT)
+=====================
+
+Copyright © `<2022>` `<Miha Korenjak>`
+
+Permission is hereby granted, free of charge, to any person
+obtaining a copy of this software and associated documentation
+files (the “Software”), to deal in the Software without
+restriction, including without limitation the rights to use,
+copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+

Makefile

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+CC	= gcc
+RM	= rm
+BINARY	= activate-linux
+CFLAGS	= $(shell pkg-config --cflags --libs gtk+-3.0 gtk-layer-shell-0)
+
+activate-linux:
+	$(CC) src/activate_linux.c -o bin/$(BINARY) $(CFLAGS)
+
+.PHONY: clean
+clean:
+	$(RM) -rf bin/

README.md

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+# activate-linux for Wayland
+The "Activate Windows" watermark ported to Linux with Gtk Layer Shell
+
+# Linux
+
+## Dependencies
+This project depends on:
+- `gtk-3.0`
+- `gtk-layer-shell`
+
+## Building
+```
+make
+```

src/activate_linux.c

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