Added date filtering

src/mainwindow.c

@@ -11,6 +11,99 @@ enum {
 	COL_COUNT
 };
 
+
+struct dateFormats {
+	gchar *regex;
+	guint index_count;
+	guint index_year;
+	guint index_month;
+	guint index_day;
+	guint index_hour;
+	guint index_minute;
+} dateFormats_list[] = {
+{
+	.regex        = "(\\d{1,4})-(\\d{1,2})-(\\d{1,2}) (\\d{1,2}):(\\d{1,2}).*",
+	.index_count  = 5,
+	.index_year   = 1,
+	.index_month  = 2,
+	.index_day    = 3,
+	.index_hour   = 4,
+	.index_minute = 5
+},
+{
+	.regex = "(\\d{1,4})-(\\d{1,2})-(\\d{1,2}).*",
+	.index_count  = 3,
+	.index_year   = 1,
+	.index_month  = 2,
+	.index_day    = 3,
+},
+{
+	.regex = "(\\d{1,2})\\.(\\d{1,2})\\.(\\d{1,4}).*",
+	.index_count  = 3,
+	.index_year   = 3,
+	.index_month  = 2,
+	.index_day    = 1,
+},
+{
+	.regex = NULL
+}
+};
+
+/**
+ * @brief Tries to guess the date format used and converts it to GDateTime.
+ * @param Input string.
+ * @return A GDateTime object or NULL on error. You need to free it after use.
+ */
+static GDateTime *mainWindow_get_date_from_string(gchar *string)
+{
+	GRegex *regex;
+	GMatchInfo *match_info;
+	GRegexError *regex_error;
+	struct dateFormats *dateFormats;
+	GDateTime *datetime = NULL;
+	guint year   = 0;
+	guint month  = 0;
+	guint day    = 0;
+	guint hour   = 0;
+	guint minute = 0;
+
+	dateFormats = dateFormats_list;
+	do {
+		regex = g_regex_new(dateFormats->regex, G_REGEX_RAW, 0, NULL);
+		if (g_regex_match(regex, string, 0, &match_info)
+				&& g_regex_get_capture_count(regex) >= dateFormats->index_count &&
+				g_match_info_matches(match_info)) {
+			if (dateFormats->index_year)
+				year   = atoi(g_match_info_fetch(match_info, dateFormats->index_year));
+			if (dateFormats->index_month)
+				month  = atoi(g_match_info_fetch(match_info, dateFormats->index_month));
+			if (dateFormats->index_day)
+				day    = atoi(g_match_info_fetch(match_info, dateFormats->index_day));
+			if (dateFormats->index_hour)
+				hour   = atoi(g_match_info_fetch(match_info, dateFormats->index_hour));
+			if (dateFormats->index_minute)
+				minute = atoi(g_match_info_fetch(match_info, dateFormats->index_minute));
+
+			if (year >= 0 &&
+					month >=1 && month <=12 &&
+					day >= 1 && day <= 31 &&
+					hour >= 0 && hour <= 23 &&
+					minute >= 0 && minute <= 59) {
+				datetime = g_date_time_new_local(year, month, day, 0, 0, 0);
+
+				g_regex_unref(regex);
+				break;
+			}
+		}
+		g_regex_unref(regex);
+	} while ((++dateFormats)->regex);
+
+	if (!datetime)
+		g_print("Warning! Could not match date \"%s\"!\n", string);
+
+	return datetime;
+}
+
 /**
  * Returns: The string, needs to be freed using g_free().
  */
@@ -65,9 +158,16 @@ static void mainWindow_list_add_entry(struct mainWindow *mainWindow,
 
 static gboolean mainWindow_list_entry_visible(GtkTreeModel *model, GtkTreeIter *iter, struct mainWindow *mainWindow)
 {
-	/* gtk_tree_model_get (model, iter, COLUMN_NAME, &target, -1); */
+	GDateTime *datetime;
+	guint time;
 
-	return 1;
+	gtk_tree_model_get(model, iter, COL_TIMESTAMP, &datetime, -1);
+	if (datetime) {
+		time = g_date_time_to_unix(datetime);
+		return time >= mainWindow->filterSettings.time_start && time <= mainWindow->filterSettings.time_end;
+	} else {
+		return 0;
+	}
 }
 
 static gint mainWindow_sort_date_compare_func(GtkTreeModel *model,
@@ -99,7 +199,6 @@ static void mainWindow_configure_treeView(struct mainWindow *mainWindow)
 	GtkCellRenderer *renderer;
 	GtkTreeSortable *sortable;
 	GtkTreeViewColumn *col;
-	GtkTreeModelFilter *filtered;
 	GtkTreeModelSort *sorted;
 	GtkTreeModel *model;
 
@@ -110,12 +209,13 @@ static void mainWindow_configure_treeView(struct mainWindow *mainWindow)
 							G_TYPE_POINTER,
 							G_TYPE_POINTER,
 							G_TYPE_STRING);
-	filtered = GTK_TREE_MODEL_FILTER(gtk_tree_model_filter_new(
+	mainWindow->entryListFiltered = GTK_TREE_MODEL_FILTER(gtk_tree_model_filter_new(
-						 GTK_TREE_MODEL(mainWindow->entryListStore), NULL));
+								      GTK_TREE_MODEL(mainWindow->entryListStore),
+								      NULL));
 	sorted = GTK_TREE_MODEL_SORT(gtk_tree_model_sort_new_with_model(
-					     GTK_TREE_MODEL(filtered)));
+					     GTK_TREE_MODEL(mainWindow->entryListFiltered)));
 
-	gtk_tree_model_filter_set_visible_func(filtered,
+	gtk_tree_model_filter_set_visible_func(mainWindow->entryListFiltered,
 					       (GtkTreeModelFilterVisibleFunc) mainWindow_list_entry_visible,
 					       mainWindow, NULL);
 	model = GTK_TREE_MODEL(sorted);
@@ -165,9 +265,13 @@ static void mainWindow_configure_treeView(struct mainWindow *mainWindow)
 	mainWindow_list_add_entry(mainWindow, "Title", dt, list, "Text text text");
 	g_date_time_unref(dt);
 
-	dt = g_date_time_new_local(2017, 2, 3, 6, 7, 0);
+	dt = g_date_time_new_local(2017, 2, 3, 6, 7, 1);
 	mainWindow_list_add_entry(mainWindow, "AAA 2", dt, list, "fdfd Text text text");
 	g_date_time_unref(dt);
+
+	dt = g_date_time_new_local(2016, 4, 18, 13, 44, 2);
+	mainWindow_list_add_entry(mainWindow, "Yey entries 3", dt, list, "The content is content.");
+	g_date_time_unref(dt);
 }
 
 static void mainWindow_connect_signals(struct mainWindow *mainWindow)
@@ -189,6 +293,16 @@ static void mainWindow_connect_signals(struct mainWindow *mainWindow)
 			 "changed",
 			 (GCallback) mainWindow_entrySelected,
 			 mainWindow);
+
+	g_signal_connect(mainWindow->dateStart,
+			 "changed",
+			 (GCallback) mainWindow_dateChanged,
+			 mainWindow);
+
+	g_signal_connect(mainWindow->dateEnd,
+			 "changed",
+			 (GCallback) mainWindow_dateChanged,
+			 mainWindow);
 }
 
 struct mainWindow *mainWindow_new()
@@ -210,6 +324,9 @@ struct mainWindow *mainWindow_new()
 	mainWindow->entryListView         = GTK_TREE_VIEW(gtk_builder_get_object(builder, "entryListView"));
 	mainWindow->entryListSelection    = GTK_TREE_SELECTION(gtk_builder_get_object(builder, "entryListSelection"));
 
+	mainWindow->filterSettings.time_start = 0;
+	mainWindow->filterSettings.time_end = -1;
+
 	gtk_builder_connect_signals(builder, NULL);
 
 	g_object_unref(G_OBJECT(builder));
@@ -217,6 +334,9 @@ struct mainWindow *mainWindow_new()
 	mainWindow_configure_treeView(mainWindow);
 	mainWindow_connect_signals(mainWindow);
 
+	mainWindow_get_date_from_string("pointless foo");
+	mainWindow_get_date_from_string("2017-02-11 12:44");
+
 	return mainWindow;
 }
 
@@ -267,3 +387,22 @@ void mainWindow_entrySelected(GtkWidget *widget, gpointer user_data)
 		g_free(temp);
 	}
 }
+
+void mainWindow_dateChanged(GtkWidget *widget, gpointer user_data)
+{
+	GDateTime *datetime;
+	struct mainWindow *mainWindow = (struct mainWindow *)user_data;
+
+	datetime = mainWindow_get_date_from_string(gtk_entry_get_text(GTK_ENTRY(mainWindow->dateStart)));
+	if (datetime) {
+		mainWindow->filterSettings.time_start = g_date_time_to_unix(datetime);
+		g_date_time_unref(datetime);
+	}
+	datetime = mainWindow_get_date_from_string(gtk_entry_get_text(GTK_ENTRY(mainWindow->dateEnd)));
+	if (datetime) {
+		mainWindow->filterSettings.time_end = g_date_time_to_unix(datetime);
+		g_date_time_unref(datetime);
+	}
+
+	gtk_tree_model_filter_refilter(mainWindow->entryListFiltered);
+}

src/mainwindow.h

@@ -18,6 +18,12 @@ struct mainWindow {
 
 	GtkListStore *entryListStore;
 	GtkWidget *selectedDateEntry;
+	GtkTreeModelFilter *entryListFiltered;
+
+	struct filterSettings {
+		guint time_start;
+		guint time_end;
+	} filterSettings;
 };
 
 struct mainWindow *mainWindow_new();
@@ -27,5 +33,6 @@ void mainWindow_showPopover(GtkWidget *widget, GdkEvent *event, gpointer user_da
 void mainWindow_chooseWorkspaceClicked(GtkWidget *widget, gint event, gpointer user_data);
 void mainWindow_calendarSelected(GtkWidget *widget, gpointer user_data);
 void mainWindow_entrySelected(GtkWidget *widget, gpointer user_data);
+void mainWindow_dateChanged(GtkWidget *widget, gpointer user_data);
 
 #endif /* MAINWINDOW_H */