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;
46 guint idle_id; /* event source id */
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))
68 phd->idle_id = g_idle_add_full(G_PRIORITY_DEFAULT_IDLE, bar_pane_histogram_update_cb, phd, NULL);
73 phd->need_update = TRUE;
77 static gboolean bar_pane_histogram_update_cb(gpointer data)
79 const HistMap *histmap;
80 PaneHistogramData *phd = data;
83 phd->need_update = FALSE;
85 gtk_widget_queue_draw_area(GTK_WIDGET(phd->drawing_area), 0, 0, phd->histogram_width, phd->histogram_height);
87 if (phd->fd == NULL) return FALSE;
88 histmap = histmap_get(phd->fd);
92 histmap_start_idle(phd->fd);
96 phd->pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, phd->histogram_width, phd->histogram_height);
97 gdk_pixbuf_fill(phd->pixbuf, 0xffffffff);
98 histogram_draw(phd->histogram, histmap, phd->pixbuf, 0, 0, phd->histogram_width, phd->histogram_height);
104 static void bar_pane_histogram_set_fd(GtkWidget *pane, FileData *fd)
106 PaneHistogramData *phd;
108 phd = g_object_get_data(G_OBJECT(pane), "pane_data");
111 file_data_unref(phd->fd);
112 phd->fd = file_data_ref(fd);
114 bar_pane_histogram_update(phd);
117 static void bar_pane_histogram_write_config(GtkWidget *pane, GString *outstr, gint indent)
119 PaneHistogramData *phd;
121 phd = g_object_get_data(G_OBJECT(pane), "pane_data");
124 WRITE_NL(); WRITE_STRING("<pane_histogram ");
125 write_char_option(outstr, indent, "id", phd->pane.id);
126 write_char_option(outstr, indent, "title", gtk_label_get_text(GTK_LABEL(phd->pane.title)));
127 WRITE_BOOL(phd->pane, expanded);
128 WRITE_INT(*phd->histogram, histogram_channel);
129 WRITE_INT(*phd->histogram, histogram_mode);
133 static void bar_pane_histogram_notify_cb(FileData *fd, NotifyType type, gpointer data)
135 PaneHistogramData *phd = data;
136 if ((type & (NOTIFY_REREAD | NOTIFY_CHANGE | NOTIFY_HISTMAP | NOTIFY_PIXBUF)) && fd == phd->fd)
138 DEBUG_1("Notify pane_histogram: %s %04x", fd->path, type);
139 bar_pane_histogram_update(phd);
143 static gboolean bar_pane_histogram_expose_event_cb(GtkWidget *widget, GdkEventExpose *event, gpointer data)
145 PaneHistogramData *phd = data;
146 if (!phd) return TRUE;
148 if (phd->need_update)
150 bar_pane_histogram_update(phd);
153 if (!phd->pixbuf) return TRUE;
155 gdk_draw_pixbuf(widget->window,
156 widget->style->fg_gc[GTK_WIDGET_STATE (widget)],
161 GDK_RGB_DITHER_NORMAL, 0, 0);
165 static void bar_pane_histogram_size_cb(GtkWidget *widget, GtkAllocation *allocation, gpointer data)
167 PaneHistogramData *phd = data;
169 phd->histogram_width = allocation->width;
170 phd->histogram_height = allocation->height;
171 bar_pane_histogram_update(phd);
174 static void bar_pane_histogram_close(GtkWidget *pane)
176 PaneHistogramData *phd;
178 phd = g_object_get_data(G_OBJECT(pane), "pane_data");
181 gtk_widget_destroy(phd->widget);
184 static void bar_pane_histogram_destroy(GtkWidget *widget, gpointer data)
186 PaneHistogramData *phd = data;
188 if (phd->idle_id) g_source_remove(phd->idle_id);
189 file_data_unregister_notify_func(bar_pane_histogram_notify_cb, phd);
191 file_data_unref(phd->fd);
192 histogram_free(phd->histogram);
193 if (phd->pixbuf) g_object_unref(phd->pixbuf);
194 g_free(phd->pane.id);
199 static void bar_pane_histogram_popup_channels_cb(GtkWidget *widget, gpointer data)
201 PaneHistogramData *phd;
204 if (!gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(widget))) return;
206 phd = submenu_item_get_data(widget);
210 channel = GPOINTER_TO_INT(data);
211 if (channel == histogram_get_channel(phd->histogram)) return;
213 histogram_set_channel(phd->histogram, channel);
214 bar_pane_histogram_update(phd);
217 static void bar_pane_histogram_popup_logmode_cb(GtkWidget *widget, gpointer data)
219 PaneHistogramData *phd;
222 if (!gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(widget))) return;
224 phd = submenu_item_get_data(widget);
228 logmode = GPOINTER_TO_INT(data);
229 if (logmode == histogram_get_mode(phd->histogram)) return;
231 histogram_set_mode(phd->histogram, logmode);
232 bar_pane_histogram_update(phd);
235 static GtkWidget *bar_pane_histogram_add_radio(GtkWidget *menu, GtkWidget *parent,
237 GCallback func, gint value,
238 gboolean show_current, gint current_value)
244 item = menu_item_add_radio(menu, parent,
245 label, (value == current_value),
246 func, GINT_TO_POINTER((gint)value));
250 item = menu_item_add(menu, label,
251 func, GINT_TO_POINTER((gint)value));
257 GtkWidget *bar_pane_histogram_add_channels(GtkWidget *menu, GCallback func, gpointer data,
258 gboolean show_current, gint current_value)
263 submenu = gtk_menu_new();
264 g_object_set_data(G_OBJECT(submenu), "submenu_data", data);
266 parent = bar_pane_histogram_add_radio(submenu, NULL, _("_Red"), func, HCHAN_R, show_current, current_value);
267 bar_pane_histogram_add_radio(submenu, parent, _("_Green"), func, HCHAN_G, show_current, current_value);
268 bar_pane_histogram_add_radio(submenu, parent, _("_Blue"),func, HCHAN_B, show_current, current_value);
269 bar_pane_histogram_add_radio(submenu, parent, _("_RGB"),func, HCHAN_RGB, show_current, current_value);
270 bar_pane_histogram_add_radio(submenu, parent, _("_Value"),func, HCHAN_MAX, show_current, current_value);
276 item = menu_item_add(menu, _("Channels"), NULL, NULL);
277 gtk_menu_item_set_submenu(GTK_MENU_ITEM(item), submenu);
283 GtkWidget *bar_pane_histogram_add_logmode(GtkWidget *menu, GCallback func, gpointer data,
284 gboolean show_current, gint current_value)
289 submenu = gtk_menu_new();
290 g_object_set_data(G_OBJECT(submenu), "submenu_data", data);
292 parent = bar_pane_histogram_add_radio(submenu, NULL, _("_Linear"), func, 0, show_current, current_value);
293 bar_pane_histogram_add_radio(submenu, parent, _("Lo_garithmical"), func, 1, show_current, current_value);
299 item = menu_item_add(menu, _("Mode"), NULL, NULL);
300 gtk_menu_item_set_submenu(GTK_MENU_ITEM(item), submenu);
308 static GtkWidget *bar_pane_histogram_menu(PaneHistogramData *phd)
311 static gboolean show_current = TRUE;
313 menu = popup_menu_short_lived();
314 bar_pane_histogram_add_channels(menu, G_CALLBACK(bar_pane_histogram_popup_channels_cb), phd,
315 show_current, histogram_get_channel(phd->histogram));
316 bar_pane_histogram_add_logmode(menu, G_CALLBACK(bar_pane_histogram_popup_logmode_cb), phd,
317 show_current, histogram_get_mode(phd->histogram));
322 static gboolean bar_pane_histogram_press_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
324 PaneHistogramData *phd = data;
326 if (bevent->button == MOUSE_BUTTON_RIGHT)
330 menu = bar_pane_histogram_menu(phd);
331 gtk_menu_popup(GTK_MENU(menu), NULL, NULL, NULL, NULL, bevent->button, bevent->time);
339 static GtkWidget *bar_pane_histogram_new(const gchar *id, const gchar *title, gint height, gboolean expanded, gint histogram_channel, gint histogram_mode)
341 PaneHistogramData *phd;
343 phd = g_new0(PaneHistogramData, 1);
345 phd->pane.pane_set_fd = bar_pane_histogram_set_fd;
346 phd->pane.pane_write_config = bar_pane_histogram_write_config;
347 phd->pane.title = bar_pane_expander_title(title);
348 phd->pane.id = g_strdup(id);
349 phd->pane.type = PANE_HISTOGRAM;
351 phd->pane.expanded = expanded;
353 phd->histogram = histogram_new();
355 histogram_set_channel(phd->histogram, histogram_channel);
356 histogram_set_mode(phd->histogram, histogram_mode);
358 phd->widget = gtk_vbox_new(FALSE, PREF_PAD_GAP);
360 g_object_set_data(G_OBJECT(phd->widget), "pane_data", phd);
361 g_signal_connect(G_OBJECT(phd->widget), "destroy",
362 G_CALLBACK(bar_pane_histogram_destroy), phd);
365 gtk_widget_set_size_request(GTK_WIDGET(phd->widget), -1, height);
367 phd->drawing_area = gtk_drawing_area_new();
368 g_signal_connect_after(G_OBJECT(phd->drawing_area), "size_allocate",
369 G_CALLBACK(bar_pane_histogram_size_cb), phd);
371 g_signal_connect(G_OBJECT(phd->drawing_area), "expose_event",
372 G_CALLBACK(bar_pane_histogram_expose_event_cb), phd);
374 gtk_box_pack_start(GTK_BOX(phd->widget), phd->drawing_area, TRUE, TRUE, 0);
375 gtk_widget_show(phd->drawing_area);
376 gtk_widget_add_events(phd->drawing_area, GDK_BUTTON_PRESS_MASK);
378 g_signal_connect(G_OBJECT(phd->drawing_area), "button_press_event", G_CALLBACK(bar_pane_histogram_press_cb), phd);
380 gtk_widget_show(phd->widget);
382 file_data_register_notify_func(bar_pane_histogram_notify_cb, phd, NOTIFY_PRIORITY_LOW);
387 GtkWidget *bar_pane_histogram_new_from_config(const gchar **attribute_names, const gchar **attribute_values)
390 gchar *id = g_strdup("histogram");
391 gboolean expanded = TRUE;
393 gint histogram_channel = HCHAN_RGB;
394 gint histogram_mode = 0;
397 while (*attribute_names)
399 const gchar *option = *attribute_names++;
400 const gchar *value = *attribute_values++;
402 if (READ_CHAR_FULL("id", id)) continue;
403 if (READ_CHAR_FULL("title", title)) continue;
404 if (READ_BOOL_FULL("expanded", expanded)) continue;
405 if (READ_INT_FULL("histogram_channel", histogram_channel)) continue;
406 if (READ_INT_FULL("histogram_mode", histogram_mode)) continue;
408 log_printf("unknown attribute %s = %s\n", option, value);
411 bar_pane_translate_title(PANE_HISTOGRAM, id, &title);
412 ret = bar_pane_histogram_new(id, title, height, expanded, histogram_channel, histogram_mode);
418 void bar_pane_histogram_update_from_config(GtkWidget *pane, const gchar **attribute_names, const gchar **attribute_values)
420 PaneHistogramData *phd;
422 phd = g_object_get_data(G_OBJECT(pane), "pane_data");
425 gint histogram_channel = phd->histogram->histogram_channel;
426 gint histogram_mode = phd->histogram->histogram_mode;
428 while (*attribute_names)
430 const gchar *option = *attribute_names++;
431 const gchar *value = *attribute_values++;
433 if (READ_CHAR_FULL("id", phd->pane.id)) continue;
434 // if (READ_CHAR_FULL("pane.title", title)) continue;
435 if (READ_BOOL_FULL("expanded", phd->pane.expanded)) continue;
436 if (READ_INT_FULL("histogram_channel", histogram_channel)) continue;
437 if (READ_INT_FULL("histogram_mode", histogram_mode)) continue;
440 log_printf("unknown attribute %s = %s\n", option, value);
443 histogram_set_channel(phd->histogram, histogram_channel);
444 histogram_set_mode(phd->histogram, histogram_mode);
446 bar_update_expander(pane);
447 bar_pane_histogram_update(phd);
451 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */