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_histogram.h"
23 #include "histogram.h"
27 *-------------------------------------------------------------------
28 * keyword / comment utils
29 *-------------------------------------------------------------------
34 typedef struct _PaneHistogramData PaneHistogramData;
35 struct _PaneHistogramData
39 GtkWidget *drawing_area;
42 gint histogram_height;
49 static gboolean bar_pane_histogram_update_cb(gpointer data);
52 static void bar_pane_histogram_update(PaneHistogramData *phd)
54 if (phd->pixbuf) g_object_unref(phd->pixbuf);
57 gtk_label_set_text(GTK_LABEL(phd->pane.title), histogram_label(phd->histogram));
59 if (!phd->histogram_width || !phd->histogram_height || !phd->fd) return;
61 /* histmap_get is relatively expensive, run it only when we really need it
62 and with lower priority than pixbuf_renderer
63 FIXME: this does not work for fullscreen*/
64 if (GTK_WIDGET_DRAWABLE(phd->drawing_area))
66 if (phd->idle_id == -1) phd->idle_id = g_idle_add_full(G_PRIORITY_DEFAULT_IDLE, bar_pane_histogram_update_cb, phd, NULL);
70 phd->need_update = TRUE;
74 static gboolean bar_pane_histogram_update_cb(gpointer data)
76 const HistMap *histmap;
77 PaneHistogramData *phd = data;
80 phd->need_update = FALSE;
82 gtk_widget_queue_draw_area(GTK_WIDGET(phd->drawing_area), 0, 0, phd->histogram_width, phd->histogram_height);
84 histmap = histmap_get(phd->fd);
86 if (!histmap) return FALSE;
88 phd->pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, phd->histogram_width, phd->histogram_height);
89 gdk_pixbuf_fill(phd->pixbuf, 0xffffffff);
90 histogram_draw(phd->histogram, histmap, phd->pixbuf, 0, 0, phd->histogram_width, phd->histogram_height);
96 static void bar_pane_histogram_set_fd(GtkWidget *pane, FileData *fd)
98 PaneHistogramData *phd;
100 phd = g_object_get_data(G_OBJECT(pane), "pane_data");
103 file_data_unref(phd->fd);
104 phd->fd = file_data_ref(fd);
106 bar_pane_histogram_update(phd);
109 static void bar_pane_histogram_write_config(GtkWidget *pane, GString *outstr, gint indent)
111 PaneHistogramData *phd;
113 phd = g_object_get_data(G_OBJECT(pane), "pane_data");
116 WRITE_STRING("<pane_histogram\n");
118 write_char_option(outstr, indent, "pane.title", gtk_label_get_text(GTK_LABEL(phd->pane.title)));
119 WRITE_BOOL(*phd, pane.expanded);
120 WRITE_INT(*phd->histogram, histogram_channel);
121 WRITE_INT(*phd->histogram, histogram_mode);
123 WRITE_STRING("/>\n");
127 static void bar_pane_histogram_notify_cb(FileData *fd, NotifyType type, gpointer data)
129 PaneHistogramData *phd = data;
130 if (fd == phd->fd) bar_pane_histogram_update(phd);
133 static gboolean bar_pane_histogram_expose_event_cb (GtkWidget *widget, GdkEventExpose *event, gpointer data)
135 PaneHistogramData *phd = data;
136 if (!phd) return TRUE;
138 if (phd->need_update)
140 bar_pane_histogram_update(phd);
143 if (!phd->pixbuf) return TRUE;
145 gdk_draw_pixbuf(widget->window,
146 widget->style->fg_gc[GTK_WIDGET_STATE (widget)],
151 GDK_RGB_DITHER_NORMAL, 0, 0);
155 static void bar_pane_histogram_size_cb(GtkWidget *widget, GtkAllocation *allocation, gpointer data)
157 PaneHistogramData *phd = data;
159 phd->histogram_width = allocation->width;
160 phd->histogram_height = allocation->height;
161 bar_pane_histogram_update(phd);
164 static void bar_pane_histogram_close(GtkWidget *pane)
166 PaneHistogramData *phd;
168 phd = g_object_get_data(G_OBJECT(pane), "pane_data");
171 gtk_widget_destroy(phd->widget);
174 static void bar_pane_histogram_destroy(GtkWidget *widget, gpointer data)
176 PaneHistogramData *phd = data;
178 g_source_remove(phd->idle_id);
179 file_data_unregister_notify_func(bar_pane_histogram_notify_cb, phd);
181 file_data_unref(phd->fd);
182 histogram_free(phd->histogram);
183 if (phd->pixbuf) g_object_unref(phd->pixbuf);
188 static void bar_pane_histogram_popup_channels_cb(GtkWidget *widget, gpointer data)
190 PaneHistogramData *phd;
193 if (!gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(widget))) return;
195 phd = submenu_item_get_data(widget);
199 channel = GPOINTER_TO_INT(data);
200 if (channel == histogram_get_channel(phd->histogram)) return;
202 histogram_set_channel(phd->histogram, channel);
203 bar_pane_histogram_update(phd);
206 static void bar_pane_histogram_popup_logmode_cb(GtkWidget *widget, gpointer data)
208 PaneHistogramData *phd;
211 if (!gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(widget))) return;
213 phd = submenu_item_get_data(widget);
217 logmode = GPOINTER_TO_INT(data);
218 if (logmode == histogram_get_mode(phd->histogram)) return;
220 histogram_set_mode(phd->histogram, logmode);
221 bar_pane_histogram_update(phd);
224 static GtkWidget *bar_pane_histogram_add_radio(GtkWidget *menu, GtkWidget *parent,
226 GCallback func, gint value,
227 gboolean show_current, gint current_value)
233 item = menu_item_add_radio(menu, parent,
234 label, (value == current_value),
235 func, GINT_TO_POINTER((gint)value));
239 item = menu_item_add(menu, label,
240 func, GINT_TO_POINTER((gint)value));
246 GtkWidget *bar_pane_histogram_add_channels(GtkWidget *menu, GCallback func, gpointer data,
247 gboolean show_current, gint current_value)
252 submenu = gtk_menu_new();
253 g_object_set_data(G_OBJECT(submenu), "submenu_data", data);
255 parent = bar_pane_histogram_add_radio(submenu, NULL, _("_Red"), func, HCHAN_R, show_current, current_value);
256 bar_pane_histogram_add_radio(submenu, parent, _("_Green"), func, HCHAN_G, show_current, current_value);
257 bar_pane_histogram_add_radio(submenu, parent, _("_Blue"),func, HCHAN_B, show_current, current_value);
258 bar_pane_histogram_add_radio(submenu, parent, _("_RGB"),func, HCHAN_RGB, show_current, current_value);
259 bar_pane_histogram_add_radio(submenu, parent, _("_Value"),func, HCHAN_MAX, show_current, current_value);
265 item = menu_item_add(menu, _("Channels"), NULL, NULL);
266 gtk_menu_item_set_submenu(GTK_MENU_ITEM(item), submenu);
272 GtkWidget *bar_pane_histogram_add_logmode(GtkWidget *menu, GCallback func, gpointer data,
273 gboolean show_current, gint current_value)
278 submenu = gtk_menu_new();
279 g_object_set_data(G_OBJECT(submenu), "submenu_data", data);
281 parent = bar_pane_histogram_add_radio(submenu, NULL, _("_Linear"), func, 0, show_current, current_value);
282 bar_pane_histogram_add_radio(submenu, parent, _("Lo_garithmical"), func, 1, show_current, current_value);
288 item = menu_item_add(menu, _("Mode"), NULL, NULL);
289 gtk_menu_item_set_submenu(GTK_MENU_ITEM(item), submenu);
297 static GtkWidget *bar_pane_histogram_menu(PaneHistogramData *phd)
300 static gboolean show_current = TRUE;
302 menu = popup_menu_short_lived();
303 bar_pane_histogram_add_channels(menu, G_CALLBACK(bar_pane_histogram_popup_channels_cb), phd,
304 show_current, histogram_get_channel(phd->histogram));
305 bar_pane_histogram_add_logmode(menu, G_CALLBACK(bar_pane_histogram_popup_logmode_cb), phd,
306 show_current, histogram_get_mode(phd->histogram));
311 static gboolean bar_pane_histogram_press_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
313 PaneHistogramData *phd = data;
315 if (bevent->button == MOUSE_BUTTON_RIGHT)
319 menu = bar_pane_histogram_menu(phd);
320 gtk_menu_popup(GTK_MENU(menu), NULL, NULL, NULL, NULL, bevent->button, bevent->time);
328 GtkWidget *bar_pane_histogram_new(const gchar *title, gint height, gboolean expanded, gint histogram_channel, gint histogram_mode)
330 PaneHistogramData *phd;
332 phd = g_new0(PaneHistogramData, 1);
334 phd->pane.pane_set_fd = bar_pane_histogram_set_fd;
335 phd->pane.pane_write_config = bar_pane_histogram_write_config;
336 phd->pane.title = gtk_label_new(title);
337 phd->pane.expanded = expanded;
340 phd->histogram = histogram_new();
342 histogram_set_channel(phd->histogram, histogram_channel);
343 histogram_set_mode(phd->histogram, histogram_mode);
345 phd->widget = gtk_vbox_new(FALSE, PREF_PAD_GAP);
347 g_object_set_data(G_OBJECT(phd->widget), "pane_data", phd);
348 g_signal_connect(G_OBJECT(phd->widget), "destroy",
349 G_CALLBACK(bar_pane_histogram_destroy), phd);
352 gtk_widget_set_size_request(GTK_WIDGET(phd->widget), -1, height);
354 phd->drawing_area = gtk_drawing_area_new();
355 g_signal_connect_after(G_OBJECT(phd->drawing_area), "size_allocate",
356 G_CALLBACK(bar_pane_histogram_size_cb), phd);
358 g_signal_connect(G_OBJECT(phd->drawing_area), "expose_event",
359 G_CALLBACK(bar_pane_histogram_expose_event_cb), phd);
361 gtk_box_pack_start(GTK_BOX(phd->widget), phd->drawing_area, TRUE, TRUE, 0);
362 gtk_widget_show(phd->drawing_area);
363 gtk_widget_add_events(phd->drawing_area, GDK_BUTTON_PRESS_MASK);
365 g_signal_connect(G_OBJECT(phd->drawing_area), "button_press_event", G_CALLBACK(bar_pane_histogram_press_cb), phd);
367 gtk_widget_show(phd->widget);
369 file_data_register_notify_func(bar_pane_histogram_notify_cb, phd, NOTIFY_PRIORITY_LOW);
374 GtkWidget *bar_pane_histogram_new_from_config(const gchar **attribute_names, const gchar **attribute_values)
376 gchar *title = g_strdup(_("NoName"));
377 gboolean expanded = TRUE;
379 gint histogram_channel = HCHAN_RGB;
380 gint histogram_mode = 0;
382 while (*attribute_names)
384 const gchar *option = *attribute_names++;
385 const gchar *value = *attribute_values++;
387 if (READ_CHAR_FULL("pane.title", title)) continue;
388 if (READ_BOOL_FULL("pane.expanded", expanded)) continue;
389 if (READ_INT_FULL("histogram_channel", histogram_channel)) continue;
390 if (READ_INT_FULL("histogram_mode", histogram_mode)) continue;
393 DEBUG_1("unknown attribute %s = %s", option, value);
396 return bar_pane_histogram_new(title, height, expanded, histogram_channel, histogram_mode);
400 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */