Adding upstream version 2.10.22.upstream/2.10.22upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 402 insertions, 0 deletions

diff --git a/plug-ins/imagemap/imap_preview.c b/plug-ins/imagemap/imap_preview.c
new file mode 100644
index 0000000..160a88d
--- /dev/null
+++ b/plug-ins/imagemap/imap_preview.c
@@ -0,0 +1,402 @@
+/*
+ * This is a plug-in for GIMP.
+ *
+ * Generates clickable image maps.
+ *
+ * Copyright (C) 1998-2005 Maurits Rijk  m.rijk@chello.nl
+ *
+ * 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 3 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, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "config.h"
+
+#include <libgimp/gimp.h>
+#include <libgimp/gimpui.h>
+
+#include "imap_commands.h"
+#include "imap_grid.h"
+#include "imap_main.h"
+#include "imap_menu.h"
+#include "imap_preview.h"
+
+#define PREVIEW_MASK  (GDK_EXPOSURE_MASK       | \
+                       GDK_POINTER_MOTION_MASK | \
+                       GDK_BUTTON_PRESS_MASK   | \
+                       GDK_BUTTON_RELEASE_MASK | \
+                       GDK_BUTTON_MOTION_MASK  | \
+                       GDK_KEY_PRESS_MASK      | \
+                       GDK_KEY_RELEASE_MASK    | \
+                       GDK_ENTER_NOTIFY_MASK   | \
+                       GDK_LEAVE_NOTIFY_MASK)
+
+#define PREVIEW_SIZE 400
+
+/*======================================================================
+                Preview Rendering Util routine
+=======================================================================*/
+
+#define CHECKWIDTH 4
+#define LIGHTCHECK 192
+#define DARKCHECK  128
+#ifndef OPAQUE
+#define OPAQUE     255
+#endif
+
+static Object_t *_tmp_obj;
+
+static Preview_t*
+preview_user_data(GtkWidget *preview)
+{
+  return (Preview_t*) g_object_get_data (G_OBJECT (preview), "preview");
+}
+
+gint
+preview_get_width(GtkWidget *preview)
+{
+   return preview_user_data(preview)->width;
+}
+
+gint
+preview_get_height(GtkWidget *preview)
+{
+   return preview_user_data(preview)->height;
+}
+
+static void
+render_background(Preview_t *preview_base)
+{
+   GtkWidget      *preview = preview_base->preview;
+   GtkStyle       *style;
+   const GdkColor *bg_color;
+
+   gtk_widget_ensure_style (preview);
+
+   style    = gtk_widget_get_style (preview);
+   bg_color = &style->bg[GTK_STATE_NORMAL];
+
+   gimp_preview_area_fill (GIMP_PREVIEW_AREA (preview),
+                           0, 0, G_MAXINT, G_MAXINT,
+                           bg_color->red   >> 8,
+                           bg_color->green >> 8,
+                           bg_color->blue  >> 8);
+}
+
+static void
+render_rgb_image (Preview_t *preview_base,
+                  gint32     drawable_id)
+{
+  GeglBuffer *buffer;
+  guchar     *dest_buffer;
+  gint        dwidth, dheight, pwidth, pheight;
+  GtkWidget  *preview = preview_base->preview;
+
+  dwidth  = gimp_drawable_width (drawable_id);
+  dheight = gimp_drawable_height (drawable_id);
+  pwidth  = preview_base->widget_width;
+  pheight = preview_base->widget_height;
+
+  dest_buffer = g_new (guchar, pwidth * pheight * 4);
+
+  buffer = gimp_drawable_get_buffer (drawable_id);
+
+  gegl_buffer_get (buffer, GEGL_RECTANGLE (0, 0, pwidth, pheight),
+                   MIN ((gdouble) pwidth / (gdouble) dwidth,
+                        (gdouble) pheight / (gdouble) dheight),
+                   babl_format ("R'G'B'A u8"), dest_buffer,
+                   GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
+
+  g_object_unref (buffer);
+
+  gimp_preview_area_draw (GIMP_PREVIEW_AREA (preview),
+                          0, 0, pwidth, pheight,
+                          GIMP_RGBA_IMAGE,
+                          dest_buffer,
+                          pwidth * 4);
+
+  g_free (dest_buffer);
+}
+
+static void
+render_preview (Preview_t *preview_base,
+                gint32     drawable_id)
+{
+  render_background (preview_base);
+  render_rgb_image (preview_base, drawable_id);
+}
+
+static gboolean
+arrow_cb(GtkWidget *widget, GdkEventButton *event, gpointer data)
+{
+   if (event->button == 1)
+      do_main_popup_menu(event);
+   return TRUE;
+}
+
+static gboolean
+preview_expose(GtkWidget *widget, GdkEventExpose *event)
+{
+   cairo_t *cr;
+   gint width = preview_get_width (widget);
+   gint height = preview_get_height (widget);
+
+   cr = gdk_cairo_create (event->window);
+   gdk_cairo_region (cr, event->region);
+   cairo_clip (cr);
+   cairo_set_line_width (cr, 1.);
+   draw_grid (cr, width, height);
+
+   draw_shapes (cr);
+
+   if (_tmp_obj)
+   {
+      /* this is a bit of a hack */
+      gdouble dash = 4.;
+      _tmp_obj->selected |= 4;
+      cairo_set_source_rgb (cr, 1., 0., 1.);
+      cairo_set_dash (cr, &dash, 1, dash);
+      object_draw (_tmp_obj, cr);
+   }
+
+   cairo_destroy (cr);
+   return FALSE;
+}
+
+void
+preview_set_tmp_obj (Object_t *obj)
+{
+   _tmp_obj = obj;
+}
+
+void
+preview_unset_tmp_obj (Object_t *obj)
+{
+   if (_tmp_obj == obj) _tmp_obj = NULL;
+}
+
+void
+preview_zoom(Preview_t *preview, gint zoom_factor)
+{
+   preview->widget_width = preview->width * zoom_factor;
+   preview->widget_height = preview->height * zoom_factor;
+   gtk_widget_set_size_request (preview->preview, preview->widget_width,
+                                preview->widget_height);
+   gtk_widget_queue_resize(preview->window);
+   render_preview(preview, preview->drawable_id);
+   preview_redraw();
+}
+
+GdkCursorType
+preview_set_cursor(Preview_t *preview, GdkCursorType cursor_type)
+{
+   GdkCursorType  prev_cursor = preview->cursor;
+   GdkDisplay    *display     = gtk_widget_get_display (preview->window);
+   GdkCursor     *cursor      = gdk_cursor_new_for_display (display,
+                                                            cursor_type);
+
+   gdk_window_set_cursor(gtk_widget_get_window (preview->window), cursor);
+   gdk_cursor_unref(cursor);
+
+   preview->cursor = cursor_type;
+
+   return prev_cursor;
+}
+
+static const GtkTargetEntry target_table[] =
+{
+   {"STRING",     0, 1 },
+   {"text/plain", 0, 2 }
+};
+
+static void
+handle_drop(GtkWidget *widget, GdkDragContext *context, gint x, gint y,
+            GtkSelectionData *data, guint info, guint time)
+{
+  gboolean success = FALSE;
+
+  if (gtk_selection_data_get_length (data) >= 0 &&
+      gtk_selection_data_get_format (data) == 8)
+    {
+      ObjectList_t *list = get_shapes();
+      Object_t *obj;
+
+      x = get_real_coord(x);
+      y = get_real_coord(y);
+      obj = object_list_find(list, x, y);
+      if (obj && !obj->locked)
+        {
+          command_list_add(edit_object_command_new(obj));
+          object_set_url(obj, (const gchar *) gtk_selection_data_get_data (data));
+          object_emit_update_signal(obj);
+          success = TRUE;
+        }
+    }
+  gtk_drag_finish(context, success, FALSE, time);
+}
+
+static void
+preview_size_allocate (GtkWidget *widget,
+                       GtkAllocation *allocation,
+                       gpointer preview_void)
+{
+  Preview_t *preview = preview_void;
+
+  render_preview (preview, preview->drawable_id);
+}
+
+static void
+scroll_adj_changed (GtkAdjustment *adj,
+                    GimpRuler     *ruler)
+{
+  gimp_ruler_set_range (ruler,
+                        gtk_adjustment_get_value (adj),
+                        gtk_adjustment_get_value (adj) +
+                        gtk_adjustment_get_page_size (adj),
+                        gtk_adjustment_get_upper (adj));
+}
+
+Preview_t *
+make_preview (gint32 drawable_id)
+{
+   Preview_t *data = g_new(Preview_t, 1);
+   GtkAdjustment *hadj;
+   GtkAdjustment *vadj;
+   GtkWidget *preview;
+   GtkWidget *window;
+   GtkWidget *viewport;
+   GtkWidget *button, *arrow;
+   GtkWidget *ruler;
+   GtkWidget *table;
+   GtkWidget *scrollbar;
+   gint width, height;
+
+   data->drawable_id = drawable_id;
+   data->preview = preview = gimp_preview_area_new ();
+
+   g_object_set_data (G_OBJECT (preview), "preview", data);
+   gtk_widget_set_events (GTK_WIDGET (preview), PREVIEW_MASK);
+
+   g_signal_connect_after (preview, "expose-event",
+                           G_CALLBACK (preview_expose),
+                           data);
+   g_signal_connect (preview, "size-allocate",
+                     G_CALLBACK (preview_size_allocate),
+                     data);
+
+   /* Handle drop of links in preview widget */
+   gtk_drag_dest_set (preview, GTK_DEST_DEFAULT_ALL, target_table,
+                      2, GDK_ACTION_COPY);
+
+   g_signal_connect (preview, "drag-data-received",
+                     G_CALLBACK (handle_drop),
+                     NULL);
+
+   data->widget_width  = data->width  = gimp_drawable_width (drawable_id);
+   data->widget_height = data->height = gimp_drawable_height (drawable_id);
+   gtk_widget_set_size_request (preview, data->widget_width,
+                                data->widget_height);
+
+   /* The main table */
+   data->window = table = gtk_table_new (3, 3, FALSE);
+   gtk_table_set_col_spacings (GTK_TABLE (table), 1);
+   gtk_table_set_row_spacings (GTK_TABLE (table), 1);
+
+   /* Create button with arrow */
+   button = gtk_button_new ();
+   gtk_widget_set_can_focus (button, FALSE);
+   gtk_table_attach (GTK_TABLE (table), button, 0, 1, 0, 1,
+                     GTK_FILL, GTK_FILL, 0, 0);
+   gtk_widget_set_events (button,
+                          GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK);
+   gtk_widget_show (button);
+
+   g_signal_connect (button, "button-press-event",
+                     G_CALLBACK (arrow_cb),
+                     NULL);
+
+   arrow = gtk_arrow_new (GTK_ARROW_RIGHT, GTK_SHADOW_OUT);
+   gtk_container_add (GTK_CONTAINER (button), arrow);
+   gtk_widget_show (arrow);
+
+   /* Create horizontal ruler */
+   data->hruler = ruler = gimp_ruler_new (GTK_ORIENTATION_HORIZONTAL);
+   g_signal_connect_swapped (preview, "motion-notify-event",
+                             G_CALLBACK (GTK_WIDGET_GET_CLASS (ruler)->motion_notify_event),
+                             ruler);
+
+   gtk_table_attach (GTK_TABLE (table), ruler, 1, 2, 0, 1,
+                     GTK_EXPAND | GTK_SHRINK | GTK_FILL, GTK_FILL, 0, 0);
+   gtk_widget_show (ruler);
+
+   /* Create vertical ruler */
+   data->vruler = ruler = gimp_ruler_new (GTK_ORIENTATION_VERTICAL);
+   g_signal_connect_swapped (preview, "motion-notify-event",
+                             G_CALLBACK (GTK_WIDGET_GET_CLASS (ruler)->motion_notify_event),
+                            ruler);
+   gtk_table_attach (GTK_TABLE (table), ruler, 0, 1, 1, 2,
+                     GTK_FILL, GTK_EXPAND | GTK_SHRINK | GTK_FILL, 0, 0);
+   gtk_widget_show (ruler);
+
+   window = gtk_scrolled_window_new (NULL, NULL);
+   gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (window),
+                                   GTK_POLICY_NEVER, GTK_POLICY_NEVER);
+   width = (data->width > 600) ? 600 : data->width;
+   height = (data->height > 400) ? 400 : data->height;
+   gtk_widget_set_size_request (window, width, height);
+   gtk_table_attach (GTK_TABLE (table), window, 1, 2, 1, 2,
+                     GTK_FILL, GTK_FILL, 0, 0);
+   gtk_widget_show (window);
+
+   viewport = gtk_viewport_new (NULL, NULL);
+   gtk_container_add (GTK_CONTAINER (window), viewport);
+   gtk_widget_show (viewport);
+
+   hadj = gtk_scrolled_window_get_hadjustment (GTK_SCROLLED_WINDOW (window));
+
+   g_signal_connect (hadj, "changed",
+                     G_CALLBACK (scroll_adj_changed),
+                     data->hruler);
+   g_signal_connect (hadj, "value-changed",
+                     G_CALLBACK (scroll_adj_changed),
+                     data->hruler);
+
+   vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (window));
+
+   g_signal_connect (vadj, "changed",
+                     G_CALLBACK (scroll_adj_changed),
+                     data->vruler);
+   g_signal_connect (vadj, "value-changed",
+                     G_CALLBACK (scroll_adj_changed),
+                     data->vruler);
+
+   gtk_container_add (GTK_CONTAINER (viewport), preview);
+
+   scrollbar = gtk_scrollbar_new (GTK_ORIENTATION_HORIZONTAL, hadj);
+   gtk_table_attach(GTK_TABLE(table), scrollbar, 1, 2, 2, 3,
+                    GTK_FILL | GTK_SHRINK, GTK_FILL | GTK_SHRINK, 0, 0);
+   gtk_widget_show (scrollbar);
+
+   scrollbar = gtk_scrollbar_new (GTK_ORIENTATION_VERTICAL, vadj);
+   gtk_table_attach (GTK_TABLE (table), scrollbar,  2, 3, 1, 2,
+                     GTK_FILL | GTK_SHRINK, GTK_FILL | GTK_SHRINK, 0, 0);
+   gtk_widget_show (scrollbar);
+
+   gtk_widget_show (preview);
+
+   render_preview (data, drawable_id);
+
+   gtk_widget_show (table);
+
+   return data;
+}