From 37bd4fc5a180f15c1d29bbb5ec8403b33626f451 Mon Sep 17 00:00:00 2001
From: Pietro Gagliardi <pietro10@mac.com>
Date: Mon, 25 Jun 2018 21:25:23 -0400
Subject: [PATCH] Added a test program to demonstrate the GTK+ progress bar
 cell renderer timer issues.

---
 doc/misctests/gtkprogresstable.c | 136 +++++++++++++++++++++++++++++++
 1 file changed, 136 insertions(+)
 create mode 100644 doc/misctests/gtkprogresstable.c

diff --git a/doc/misctests/gtkprogresstable.c b/doc/misctests/gtkprogresstable.c
new file mode 100644
index 00000000..220cb370
--- /dev/null
+++ b/doc/misctests/gtkprogresstable.c
@@ -0,0 +1,136 @@
+// 25 june 2018
+#include <gtk/gtk.h>
+
+GtkWidget *mainwin;
+GtkWidget *vbox;
+GtkWidget *hbox;
+GtkWidget *startProgress;
+GtkWidget *startTable;
+GtkWidget *progressbar;
+GtkWidget *scrolledWindow;
+GtkListStore *model;
+GtkWidget *treeview;
+GtkWidget *hbox2;
+
+static gboolean pulseProgress(gpointer data)
+{
+	gtk_progress_bar_pulse(GTK_PROGRESS_BAR(progressbar));
+	return TRUE;
+}
+
+static void onStartProgressClicked(GtkButton *button, gpointer data)
+{
+	gtk_widget_set_sensitive(startProgress, FALSE);
+	g_timeout_add(100, pulseProgress, NULL);
+}
+
+gboolean pbarStarted = FALSE;
+gint pbarValue;
+
+static void pbarDataFunc(GtkTreeViewColumn *col, GtkCellRenderer *r, GtkTreeModel *m, GtkTreeIter *iter, gpointer data)
+{
+	if (!pbarStarted) {
+		g_object_set(r,
+			"pulse", -1,
+			"value", 0,
+			NULL);
+		return;
+	}
+	pbarValue++;
+	if (pbarValue == G_MAXINT)
+		pbarValue = 1;
+	g_object_set(r, "pulse", pbarValue, NULL);
+}
+
+static gboolean pulseTable(gpointer data)
+{
+	GtkTreePath *path;
+	GtkTreeIter iter;
+
+	path = gtk_tree_path_new_from_indices(0, -1);
+	gtk_tree_model_get_iter(GTK_TREE_MODEL(model), &iter, path);
+	gtk_tree_model_row_changed(GTK_TREE_MODEL(model), path, &iter);
+	gtk_tree_path_free(path);
+	return TRUE;
+}
+
+static void onStartTableClicked(GtkButton *button, gpointer data)
+{
+	pbarStarted = TRUE;
+	pbarValue = 0;
+
+	gtk_widget_set_sensitive(startTable, FALSE);
+	g_timeout_add(100, pulseTable, NULL);
+}
+
+static gboolean onClosing(GtkWidget *win, GdkEvent *e, gpointer data)
+{
+	gtk_main_quit();
+	return FALSE;
+}
+
+int main(void)
+{
+	GtkTreeIter iter;
+	GtkTreeViewColumn *col;
+	GtkCellRenderer *r;
+
+	gtk_init(NULL, NULL);
+
+	mainwin = gtk_window_new(GTK_WINDOW_TOPLEVEL);
+	g_signal_connect(mainwin, "delete-event", G_CALLBACK(onClosing), NULL);
+
+	vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 12);
+	gtk_container_set_border_width(GTK_CONTAINER(vbox), 12);
+	gtk_container_add(GTK_CONTAINER(mainwin), vbox);
+
+	hbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 6);
+	gtk_widget_set_halign(hbox, GTK_ALIGN_CENTER);
+	gtk_container_add(GTK_CONTAINER(vbox), hbox);
+
+	startProgress = gtk_button_new_with_label("Start Progress Bar");
+	g_signal_connect(startProgress, "clicked", G_CALLBACK(onStartProgressClicked), NULL);
+	gtk_container_add(GTK_CONTAINER(hbox), startProgress);
+
+	startTable = gtk_button_new_with_label("Start Table Cell Renderer");
+	g_signal_connect(startTable, "clicked", G_CALLBACK(onStartTableClicked), NULL);
+	gtk_container_add(GTK_CONTAINER(hbox), startTable);
+
+	progressbar = gtk_progress_bar_new();
+	gtk_container_add(GTK_CONTAINER(vbox), progressbar);
+
+	scrolledWindow = gtk_scrolled_window_new(NULL, NULL);
+	gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolledWindow), GTK_SHADOW_IN);
+	gtk_widget_set_vexpand(scrolledWindow, TRUE);
+	gtk_container_add(GTK_CONTAINER(vbox), scrolledWindow);
+
+	model = gtk_list_store_new(1, G_TYPE_INT);
+	gtk_list_store_append(model, &iter);
+	gtk_list_store_set(model, &iter,
+		0, 0,
+		-1);
+
+	treeview = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
+	gtk_container_add(GTK_CONTAINER(scrolledWindow), treeview);
+
+	col = gtk_tree_view_column_new();
+	gtk_tree_view_column_set_resizable(col, TRUE);
+	gtk_tree_view_column_set_title(col, "Column");
+	gtk_tree_view_append_column(GTK_TREE_VIEW(treeview), col);
+
+	r = gtk_cell_renderer_progress_new();
+	gtk_tree_view_column_pack_start(col, r, TRUE);
+	gtk_tree_view_column_set_cell_data_func(col, r, pbarDataFunc, NULL, NULL);
+
+	hbox2 = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 6);
+	gtk_widget_set_halign(hbox2, GTK_ALIGN_CENTER);
+	gtk_container_add(GTK_CONTAINER(vbox), hbox2);
+
+	gtk_container_add(GTK_CONTAINER(hbox2), gtk_button_new_with_label("These buttons"));
+	gtk_container_add(GTK_CONTAINER(hbox2), gtk_button_new_with_label("do nothing"));
+	gtk_container_add(GTK_CONTAINER(hbox2), gtk_button_new_with_label("when clicked"));
+
+	gtk_widget_show_all(mainwin);
+	gtk_main();
+	return 0;
+}