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);
88 histmap_start_idle(phd->fd);
92 phd->pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, phd->histogram_width, phd->histogram_height);
93 gdk_pixbuf_fill(phd->pixbuf, 0xffffffff);
94 histogram_draw(phd->histogram, histmap, phd->pixbuf, 0, 0, phd->histogram_width, phd->histogram_height);
100 static void bar_pane_histogram_set_fd(GtkWidget *pane, FileData *fd)
102 PaneHistogramData *phd;
104 phd = g_object_get_data(G_OBJECT(pane), "pane_data");
107 file_data_unref(phd->fd);
108 phd->fd = file_data_ref(fd);
110 bar_pane_histogram_update(phd);
113 static void bar_pane_histogram_write_config(GtkWidget *pane, GString *outstr, gint indent)
115 PaneHistogramData *phd;
117 phd = g_object_get_data(G_OBJECT(pane), "pane_data");
120 WRITE_NL(); WRITE_STRING("<pane_histogram ");
121 write_char_option(outstr, indent, "pane.title", gtk_label_get_text(GTK_LABEL(phd->pane.title)));
122 WRITE_BOOL(*phd, pane.expanded);
123 WRITE_INT(*phd->histogram, histogram_channel);
124 WRITE_INT(*phd->histogram, histogram_mode);
128 static void bar_pane_histogram_notify_cb(FileData *fd, NotifyType type, gpointer data)
130 PaneHistogramData *phd = data;
131 if ((type & (NOTIFY_REREAD | NOTIFY_CHANGE | NOTIFY_HISTMAP | NOTIFY_PIXBUF)) && fd == phd->fd) bar_pane_histogram_update(phd);
134 static gboolean bar_pane_histogram_expose_event_cb(GtkWidget *widget, GdkEventExpose *event, gpointer data)
136 PaneHistogramData *phd = data;
137 if (!phd) return TRUE;
139 if (phd->need_update)
141 bar_pane_histogram_update(phd);
144 if (!phd->pixbuf) return TRUE;
146 gdk_draw_pixbuf(widget->window,
147 widget->style->fg_gc[GTK_WIDGET_STATE (widget)],
152 GDK_RGB_DITHER_NORMAL, 0, 0);
156 static void bar_pane_histogram_size_cb(GtkWidget *widget, GtkAllocation *allocation, gpointer data)
158 PaneHistogramData *phd = data;
160 phd->histogram_width = allocation->width;
161 phd->histogram_height = allocation->height;
162 bar_pane_histogram_update(phd);
165 static void bar_pane_histogram_close(GtkWidget *pane)
167 PaneHistogramData *phd;
169 phd = g_object_get_data(G_OBJECT(pane), "pane_data");
172 gtk_widget_destroy(phd->widget);
175 static void bar_pane_histogram_destroy(GtkWidget *widget, gpointer data)
177 PaneHistogramData *phd = data;
179 g_source_remove(phd->idle_id);
180 file_data_unregister_notify_func(bar_pane_histogram_notify_cb, phd);
182 file_data_unref(phd->fd);
183 histogram_free(phd->histogram);
184 if (phd->pixbuf) g_object_unref(phd->pixbuf);
189 static void bar_pane_histogram_popup_channels_cb(GtkWidget *widget, gpointer data)
191 PaneHistogramData *phd;
194 if (!gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(widget))) return;
196 phd = submenu_item_get_data(widget);
200 channel = GPOINTER_TO_INT(data);
201 if (channel == histogram_get_channel(phd->histogram)) return;
203 histogram_set_channel(phd->histogram, channel);
204 bar_pane_histogram_update(phd);
207 static void bar_pane_histogram_popup_logmode_cb(GtkWidget *widget, gpointer data)
209 PaneHistogramData *phd;
212 if (!gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(widget))) return;
214 phd = submenu_item_get_data(widget);
218 logmode = GPOINTER_TO_INT(data);
219 if (logmode == histogram_get_mode(phd->histogram)) return;
221 histogram_set_mode(phd->histogram, logmode);
222 bar_pane_histogram_update(phd);
225 static GtkWidget *bar_pane_histogram_add_radio(GtkWidget *menu, GtkWidget *parent,
227 GCallback func, gint value,
228 gboolean show_current, gint current_value)
234 item = menu_item_add_radio(menu, parent,
235 label, (value == current_value),
236 func, GINT_TO_POINTER((gint)value));
240 item = menu_item_add(menu, label,
241 func, GINT_TO_POINTER((gint)value));
247 GtkWidget *bar_pane_histogram_add_channels(GtkWidget *menu, GCallback func, gpointer data,
248 gboolean show_current, gint current_value)
253 submenu = gtk_menu_new();
254 g_object_set_data(G_OBJECT(submenu), "submenu_data", data);
256 parent = bar_pane_histogram_add_radio(submenu, NULL, _("_Red"), func, HCHAN_R, show_current, current_value);
257 bar_pane_histogram_add_radio(submenu, parent, _("_Green"), func, HCHAN_G, show_current, current_value);
258 bar_pane_histogram_add_radio(submenu, parent, _("_Blue"),func, HCHAN_B, show_current, current_value);
259 bar_pane_histogram_add_radio(submenu, parent, _("_RGB"),func, HCHAN_RGB, show_current, current_value);
260 bar_pane_histogram_add_radio(submenu, parent, _("_Value"),func, HCHAN_MAX, show_current, current_value);
266 item = menu_item_add(menu, _("Channels"), NULL, NULL);
267 gtk_menu_item_set_submenu(GTK_MENU_ITEM(item), submenu);
273 GtkWidget *bar_pane_histogram_add_logmode(GtkWidget *menu, GCallback func, gpointer data,
274 gboolean show_current, gint current_value)
279 submenu = gtk_menu_new();
280 g_object_set_data(G_OBJECT(submenu), "submenu_data", data);
282 parent = bar_pane_histogram_add_radio(submenu, NULL, _("_Linear"), func, 0, show_current, current_value);
283 bar_pane_histogram_add_radio(submenu, parent, _("Lo_garithmical"), func, 1, show_current, current_value);
289 item = menu_item_add(menu, _("Mode"), NULL, NULL);
290 gtk_menu_item_set_submenu(GTK_MENU_ITEM(item), submenu);
298 static GtkWidget *bar_pane_histogram_menu(PaneHistogramData *phd)
301 static gboolean show_current = TRUE;
303 menu = popup_menu_short_lived();
304 bar_pane_histogram_add_channels(menu, G_CALLBACK(bar_pane_histogram_popup_channels_cb), phd,
305 show_current, histogram_get_channel(phd->histogram));
306 bar_pane_histogram_add_logmode(menu, G_CALLBACK(bar_pane_histogram_popup_logmode_cb), phd,
307 show_current, histogram_get_mode(phd->histogram));
312 static gboolean bar_pane_histogram_press_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
314 PaneHistogramData *phd = data;
316 if (bevent->button == MOUSE_BUTTON_RIGHT)
320 menu = bar_pane_histogram_menu(phd);
321 gtk_menu_popup(GTK_MENU(menu), NULL, NULL, NULL, NULL, bevent->button, bevent->time);
329 GtkWidget *bar_pane_histogram_new(const gchar *title, gint height, gboolean expanded, gint histogram_channel, gint histogram_mode)
331 PaneHistogramData *phd;
333 phd = g_new0(PaneHistogramData, 1);
335 phd->pane.pane_set_fd = bar_pane_histogram_set_fd;
336 phd->pane.pane_write_config = bar_pane_histogram_write_config;
337 phd->pane.title = bar_pane_expander_title(title);
339 phd->pane.expanded = expanded;
342 phd->histogram = histogram_new();
344 histogram_set_channel(phd->histogram, histogram_channel);
345 histogram_set_mode(phd->histogram, histogram_mode);
347 phd->widget = gtk_vbox_new(FALSE, PREF_PAD_GAP);
349 g_object_set_data(G_OBJECT(phd->widget), "pane_data", phd);
350 g_signal_connect(G_OBJECT(phd->widget), "destroy",
351 G_CALLBACK(bar_pane_histogram_destroy), phd);
354 gtk_widget_set_size_request(GTK_WIDGET(phd->widget), -1, height);
356 phd->drawing_area = gtk_drawing_area_new();
357 g_signal_connect_after(G_OBJECT(phd->drawing_area), "size_allocate",
358 G_CALLBACK(bar_pane_histogram_size_cb), phd);
360 g_signal_connect(G_OBJECT(phd->drawing_area), "expose_event",
361 G_CALLBACK(bar_pane_histogram_expose_event_cb), phd);
363 gtk_box_pack_start(GTK_BOX(phd->widget), phd->drawing_area, TRUE, TRUE, 0);
364 gtk_widget_show(phd->drawing_area);
365 gtk_widget_add_events(phd->drawing_area, GDK_BUTTON_PRESS_MASK);
367 g_signal_connect(G_OBJECT(phd->drawing_area), "button_press_event", G_CALLBACK(bar_pane_histogram_press_cb), phd);
369 gtk_widget_show(phd->widget);
371 file_data_register_notify_func(bar_pane_histogram_notify_cb, phd, NOTIFY_PRIORITY_LOW);
376 GtkWidget *bar_pane_histogram_new_from_config(const gchar **attribute_names, const gchar **attribute_values)
378 gchar *title = g_strdup(_("NoName"));
379 gboolean expanded = TRUE;
381 gint histogram_channel = HCHAN_RGB;
382 gint histogram_mode = 0;
384 while (*attribute_names)
386 const gchar *option = *attribute_names++;
387 const gchar *value = *attribute_values++;
389 if (READ_CHAR_FULL("pane.title", title)) continue;
390 if (READ_BOOL_FULL("pane.expanded", expanded)) continue;
391 if (READ_INT_FULL("histogram_channel", histogram_channel)) continue;
392 if (READ_INT_FULL("histogram_mode", histogram_mode)) continue;
394 log_printf("unknown attribute %s = %s\n", option, value);
397 return bar_pane_histogram_new(title, height, expanded, histogram_channel, histogram_mode);
400 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */