4 * Copyright (C) 2008 - 2009 The Geeqie Team
6 * Author: Vladimir Nadvornik
8 * This software is released under the GNU General Public License (GNU GPL).
9 * Please read the included file COPYING for more information.
10 * This software comes with no warranty of any kind, use at your own risk!
15 #include "bar_comment.h"
22 #include "histogram.h"
26 *-------------------------------------------------------------------
27 * keyword / comment utils
28 *-------------------------------------------------------------------
33 typedef struct _PaneHistogramData PaneHistogramData;
34 struct _PaneHistogramData
38 GtkWidget *drawing_area;
41 gint histogram_height;
47 static void bar_pane_histogram_update(PaneHistogramData *phd)
49 const HistMap *histmap;
50 if (phd->pixbuf) g_object_unref(phd->pixbuf);
53 if (!phd->histogram_width || !phd->histogram_height || !phd->fd) return;
55 gtk_widget_queue_draw_area(GTK_WIDGET(phd->drawing_area), 0, 0, phd->histogram_width, phd->histogram_height);
57 histmap = histmap_get(phd->fd);
61 phd->pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, phd->histogram_width, phd->histogram_height);
62 gdk_pixbuf_fill(phd->pixbuf, 0xffffffff);
63 histogram_draw(phd->histogram, histmap, phd->pixbuf, 0, 0, phd->histogram_width, phd->histogram_height);
67 static void bar_pane_histogram_set_fd(GtkWidget *pane, FileData *fd)
69 PaneHistogramData *phd;
71 phd = g_object_get_data(G_OBJECT(pane), "pane_data");
74 file_data_unref(phd->fd);
75 phd->fd = file_data_ref(fd);
77 bar_pane_histogram_update(phd);
80 static void bar_pane_histogram_write_config(GtkWidget *pane, GString *outstr, gint indent)
82 PaneHistogramData *phd;
84 phd = g_object_get_data(G_OBJECT(pane), "pane_data");
87 WRITE_STRING("<pane_histogram\n");
89 WRITE_CHAR(*phd, pane.title);
90 WRITE_BOOL(*phd, pane.expanded);
96 static void bar_pane_histogram_notify_cb(FileData *fd, NotifyType type, gpointer data)
98 PaneHistogramData *phd = data;
99 if (fd == phd->fd) bar_pane_histogram_update(phd);
102 static gboolean bar_pane_histogram_expose_event_cb (GtkWidget *widget, GdkEventExpose *event, gpointer data)
104 PaneHistogramData *phd = data;
105 if (!phd || !phd->pixbuf) return TRUE;
107 gdk_draw_pixbuf(widget->window,
108 widget->style->fg_gc[GTK_WIDGET_STATE (widget)],
113 GDK_RGB_DITHER_NORMAL, 0, 0);
117 static void bar_pane_histogram_size_cb(GtkWidget *widget, GtkAllocation *allocation, gpointer data)
119 PaneHistogramData *phd = data;
121 phd->histogram_width = allocation->width;
122 phd->histogram_height = allocation->height;
123 bar_pane_histogram_update(phd);
126 static void bar_pane_histogram_close(GtkWidget *pane)
128 PaneHistogramData *phd;
130 phd = g_object_get_data(G_OBJECT(pane), "pane_data");
133 gtk_widget_destroy(phd->widget);
136 static void bar_pane_histogram_destroy(GtkWidget *widget, gpointer data)
138 PaneHistogramData *phd = data;
140 file_data_unregister_notify_func(bar_pane_histogram_notify_cb, phd);
142 file_data_unref(phd->fd);
143 g_free(phd->pane.title);
144 histogram_free(phd->histogram);
145 if (phd->pixbuf) g_object_unref(phd->pixbuf);
151 GtkWidget *bar_pane_histogram_new(const gchar *title, gint height, gint expanded)
153 PaneHistogramData *phd;
155 phd = g_new0(PaneHistogramData, 1);
157 phd->pane.pane_set_fd = bar_pane_histogram_set_fd;
158 phd->pane.pane_write_config = bar_pane_histogram_write_config;
159 phd->pane.title = g_strdup(title);
160 phd->pane.expanded = expanded;
162 phd->histogram = histogram_new();
164 phd->widget = gtk_vbox_new(FALSE, PREF_PAD_GAP);
166 g_object_set_data(G_OBJECT(phd->widget), "pane_data", phd);
167 g_signal_connect(G_OBJECT(phd->widget), "destroy",
168 G_CALLBACK(bar_pane_histogram_destroy), phd);
171 gtk_widget_set_size_request(GTK_WIDGET(phd->widget), -1, height);
173 phd->drawing_area = gtk_drawing_area_new();
174 g_signal_connect_after(G_OBJECT(phd->drawing_area), "size_allocate",
175 G_CALLBACK(bar_pane_histogram_size_cb), phd);
177 g_signal_connect(G_OBJECT(phd->drawing_area), "expose_event",
178 G_CALLBACK(bar_pane_histogram_expose_event_cb), phd);
180 gtk_box_pack_start(GTK_BOX(phd->widget), phd->drawing_area, TRUE, TRUE, 0);
181 gtk_widget_show(phd->drawing_area);
184 gtk_widget_show(phd->widget);
186 file_data_register_notify_func(bar_pane_histogram_notify_cb, phd, NOTIFY_PRIORITY_LOW);
191 GtkWidget *bar_pane_histogram_new_from_config(const gchar **attribute_names, const gchar **attribute_values)
193 gchar *title = g_strdup(_("NoName"));
194 gboolean expanded = TRUE;
197 while (*attribute_names)
199 const gchar *option = *attribute_names++;
200 const gchar *value = *attribute_values++;
202 READ_CHAR_FULL("pane.title", title);
203 READ_BOOL_FULL("pane.expanded", expanded);
206 DEBUG_1("unknown attribute %s = %s", option, value);
209 return bar_pane_histogram_new(title, height, expanded);
213 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */