Fix #381: Feature-Request: Make JPEG comment available for overlays
[geeqie.git] / src / image-overlay.c
index fe588ef..7afe1a4 100644 (file)
@@ -1,13 +1,22 @@
 /*
- * Geeqie
- * (C) 2006 John Ellis
- * Copyright (C) 2008 - 2012 The Geeqie Team
+ * Copyright (C) 2006 John Ellis
+ * Copyright (C) 2008 - 2016 The Geeqie Team
  *
  * Author: John Ellis
  *
- * This software is released under the GNU General Public License (GNU GPL).
- * Please read the included file COPYING for more information.
- * This software comes with no warranty of any kind, use at your own risk!
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
 #include "main.h"
@@ -25,6 +34,7 @@
 #include "pixbuf_util.h"
 #include "ui_fileops.h"
 #include "image-load.h"
+#include "glua.h"
 
 /*
  *----------------------------------------------------------------------------
@@ -44,7 +54,7 @@ struct _OverlayStateData {
        OsdShowFlags show;
 
        gint ovl_info;
-       
+
        gint x;
        gint y;
 
@@ -99,6 +109,14 @@ void set_default_image_overlay_template_string(gchar **template_string)
        set_image_overlay_template_string(template_string, DEFAULT_OVERLAY_INFO);
 }
 
+void set_image_overlay_font_string(gchar **font_string, const gchar *value)
+{
+       g_assert(font_string);
+
+       g_free(*font_string);
+       *font_string = g_strdup(value);
+}
+
 static OverlayStateData *image_get_osd_data(ImageWindow *imd)
 {
        OverlayStateData *osd;
@@ -226,13 +244,13 @@ static gchar *keywords_to_string(FileData *fd)
                        {
                        gchar *kw = work->data;
                        work = work->next;
-                       
+
                        if (!kw) continue;
                        if (!kwstr)
                                kwstr = g_string_new("");
                        else
                                g_string_append(kwstr, ", ");
-                       
+
                        g_string_append(kwstr, kw);
                        }
                string_list_free(keywords);
@@ -261,7 +279,7 @@ static gchar *image_osd_mkinfo(const gchar *str, ImageWindow *imd, GHashTable *v
 
        new = g_string_new(str);
 
-       prev = 0;
+       prev = -1;
 
        while (TRUE)
                {
@@ -272,7 +290,7 @@ static gchar *image_osd_mkinfo(const gchar *str, ImageWindow *imd, GHashTable *v
                gchar *extrapos = NULL;
                gchar *p;
 
-               start = strchr(new->str, delim);
+               start = strchr(new->str + (prev + 1), delim);
                if (!start)
                        break;
                end = strchr(start+1, delim);
@@ -305,7 +323,7 @@ static gchar *image_osd_mkinfo(const gchar *str, ImageWindow *imd, GHashTable *v
 
                if (extrapos)
                        extra = g_strndup(extrapos, end - extrapos);
-                                       
+
                name = g_strndup(start+1, (trunc ? trunc : end)-start-1);
                pos = start - new->str;
                data = NULL;
@@ -318,20 +336,35 @@ static gchar *image_osd_mkinfo(const gchar *str, ImageWindow *imd, GHashTable *v
                        {
                        data = metadata_read_string(imd->image_fd, COMMENT_KEY, METADATA_PLAIN);
                        }
+               else if (strcmp(name, "imagecomment") == 0)
+                       {
+                       data = exif_get_image_comment(imd->image_fd);
+                       }
+#ifdef HAVE_LUA
+               else if (strncmp(name, "lua/", 4) == 0)
+                       {
+                       gchar *tmp;
+                       tmp = strchr(name+4, '/');
+                       if (!tmp)
+                               break;
+                       *tmp = '\0';
+                       data = lua_callvalue(imd->image_fd, name+4, tmp+1);
+                       }
+#endif
                else
                        {
                        data = g_strdup(g_hash_table_lookup(vars, name));
                        if (!data)
                                data = metadata_read_string(imd->image_fd, name, METADATA_FORMATTED);
                        }
-       
+
                if (data && *data && limit > 0 && strlen(data) > limit + 3)
                        {
                        gchar *new_data = g_strdup_printf("%-*.*s...", limit, limit, data);
                        g_free(data);
                        data = new_data;
                        }
-       
+
                if (data)
                        {
                        /* Since we use pango markup to display, we need to escape here */
@@ -366,7 +399,7 @@ static gchar *image_osd_mkinfo(const gchar *str, ImageWindow *imd, GHashTable *v
                                gchar *right = extra;
                                gchar *p;
                                guint len = strlen(extra);
-                               
+
                                /* Search for left and right parts and unescape characters */
                                for (p = extra; *p; p++, len--)
                                        if (p[0] == '\\')
@@ -481,6 +514,7 @@ static GdkPixbuf *image_osd_info_render(OverlayStateData *osd)
        const HistMap *histmap = NULL;
        ImageWindow *imd = osd->imd;
        FileData *fd = image_get_fd(imd);
+       PangoFontDescription *font_desc;
 
        if (!fd) return NULL;
 
@@ -537,20 +571,20 @@ static GdkPixbuf *image_osd_info_render(OverlayStateData *osd)
                                t = 1;
                                n = 1;
                                }
-       
+
                        if (n < 1) n = 1;
                        if (t < 1) t = 1;
-       
+
                        osd_template_insert(vars, "collection", NULL, OSDT_NONE);
                        }
-               
+
                osd_template_insert(vars, "number", g_strdup_printf("%d", n), OSDT_NO_DUP);
                osd_template_insert(vars, "total", g_strdup_printf("%d", t), OSDT_NO_DUP);
                osd_template_insert(vars, "name", (gchar *) name, OSDT_NONE);
                osd_template_insert(vars, "date", imd->image_fd ? ((gchar *) text_from_time(imd->image_fd->date)) : "", OSDT_NONE);
                osd_template_insert(vars, "size", imd->image_fd ? (text_from_size_abrev(imd->image_fd->size)) : g_strdup(""), OSDT_FREE);
                osd_template_insert(vars, "zoom", image_zoom_get_as_text(imd), OSDT_FREE);
-       
+
                if (!imd->unknown)
                        {
                        gint w, h;
@@ -567,8 +601,8 @@ static GdkPixbuf *image_osd_info_render(OverlayStateData *osd)
                                {
                                image_get_image_size(imd, &w, &h);
                                }
-               
-                       
+
+
                        osd_template_insert(vars, "width", g_strdup_printf("%d", w), OSDT_NO_DUP);
                        osd_template_insert(vars, "height", g_strdup_printf("%d", h), OSDT_NO_DUP);
                        osd_template_insert(vars, "res", g_strdup_printf("%d × %d", w, h), OSDT_FREE);
@@ -592,14 +626,14 @@ static GdkPixbuf *image_osd_info_render(OverlayStateData *osd)
        if (with_hist)
                {
                histmap = histmap_get(imd->image_fd);
-               if (!histmap) 
+               if (!histmap)
                        {
                        histmap_start_idle(imd->image_fd);
                        with_hist = FALSE;
                        }
                }
-       
-       
+
+
        {
                gint active_marks = 0;
                gint mark;
@@ -641,7 +675,10 @@ static GdkPixbuf *image_osd_info_render(OverlayStateData *osd)
                        }
        }
 
+       font_desc = pango_font_description_from_string(options->image_overlay.font);
        layout = gtk_widget_create_pango_layout(imd->pr, NULL);
+       pango_layout_set_font_description(layout, font_desc);
+
        pango_layout_set_markup(layout, text, -1);
        g_free(text);
 
@@ -662,9 +699,9 @@ static GdkPixbuf *image_osd_info_render(OverlayStateData *osd)
 
        if (width > 0 && height > 0)
                {
-               /* TODO: make osd color configurable --Zas */
                pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, TRUE, 8, width, height);
-               pixbuf_set_rect_fill(pixbuf, 3, 3, width-6, height-6, 240, 240, 240, 210);
+               pixbuf_set_rect_fill(pixbuf, 3, 3, width-6, height-6, options->image_overlay.background_red, options->image_overlay.background_green,
+                                                                                                                       options->image_overlay.background_blue, options->image_overlay.background_alpha);
                pixbuf_set_rect(pixbuf, 0, 0, width, height, 240, 240, 240, 80, 1, 1, 1, 1);
                pixbuf_set_rect(pixbuf, 1, 1, width-2, height-2, 240, 240, 240, 130, 1, 1, 1, 1);
                pixbuf_set_rect(pixbuf, 2, 2, width-4, height-4, 240, 240, 240, 180, 1, 1, 1, 1);
@@ -682,7 +719,8 @@ static GdkPixbuf *image_osd_info_render(OverlayStateData *osd)
                        pixbuf_set_rect_fill(pixbuf, x, y, w, HISTOGRAM_HEIGHT, 220, 220, 220, 210);
                        histogram_draw(osd->histogram, histmap, pixbuf, x, y, w, HISTOGRAM_HEIGHT);
                        }
-               pixbuf_draw_layout(pixbuf, layout, imd->pr, 5, 5, 0, 0, 0, 255);
+               pixbuf_draw_layout(pixbuf, layout, imd->pr, 5, 5, options->image_overlay.text_red, options->image_overlay.text_green,
+                                                                                                                       options->image_overlay.text_blue, options->image_overlay.text_alpha);
        }
 
        g_object_unref(G_OBJECT(layout));
@@ -856,7 +894,7 @@ static gboolean image_osd_update_cb(gpointer data)
 
        if (osd->show & OSD_SHOW_INFO)
                {
-               /* redraw when the image was changed, 
+               /* redraw when the image was changed,
                   with histogram we have to redraw also when loading is finished */
                if (osd->changed_states & IMAGE_STATE_IMAGE ||
                    (osd->changed_states & IMAGE_STATE_LOADING && osd->show & OSD_SHOW_HISTOGRAM) ||
@@ -885,7 +923,7 @@ static gboolean image_osd_update_cb(gpointer data)
                {
                if (osd->changed_states & IMAGE_STATE_IMAGE)
                        image_osd_icons_reset_time(osd);
-       
+
                if (osd->changed_states & IMAGE_STATE_COLOR_ADJ)
                        {
                        osd->icon_time[IMAGE_OSD_COLOR] = IMAGE_OSD_DEFAULT_DURATION + 1;
@@ -1046,7 +1084,7 @@ static void image_osd_enable(ImageWindow *imd, OsdShowFlags show)
                osd->show = OSD_SHOW_NOTHING;
                osd->x = options->image_overlay.x;
                osd->y = options->image_overlay.y;
-               
+
                osd->histogram = histogram_new();
 
                osd->destroy_id = g_signal_connect(G_OBJECT(imd->pr), "destroy",
@@ -1091,13 +1129,13 @@ void image_osd_copy_status(ImageWindow *src, ImageWindow *dest)
 {
        Histogram *h_src, *h_dest;
        image_osd_set(dest, image_osd_get(src));
-       
+
        h_src = image_osd_get_histogram(src);
        h_dest = image_osd_get_histogram(dest);
-       
+
        h_dest->histogram_mode = h_src->histogram_mode;
        h_dest->histogram_channel = h_src->histogram_channel;
-       
+
 }
 
 /* duration: