summaryrefslogtreecommitdiffstats
path: root/plug-ins/common/file-pdf-load.c
diff options
context:
space:
mode:
Diffstat (limited to 'plug-ins/common/file-pdf-load.c')
-rw-r--r--plug-ins/common/file-pdf-load.c1951
1 files changed, 1951 insertions, 0 deletions
diff --git a/plug-ins/common/file-pdf-load.c b/plug-ins/common/file-pdf-load.c
new file mode 100644
index 0000000..b2c12fa
--- /dev/null
+++ b/plug-ins/common/file-pdf-load.c
@@ -0,0 +1,1951 @@
+/* GIMP - The GNU Image Manipulation Program
+ *
+ * file-pdf-load.c - PDF file loader
+ *
+ * Copyright (C) 2005 Nathan Summers
+ *
+ * Some code in render_page_to_surface() borrowed from
+ * poppler.git/glib/poppler-page.cc.
+ *
+ * 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 <string.h>
+
+#include <libgimp/gimp.h>
+#include <libgimp/gimpui.h>
+
+#undef GTK_DISABLE_SINGLE_INCLUDES
+#include <poppler.h>
+#define GTK_DISABLE_SINGLE_INCLUDES
+
+#include "libgimp/stdplugins-intl.h"
+
+
+#define LOAD_PROC "file-pdf-load"
+#define LOAD2_PROC "file-pdf-load2"
+#define LOAD_THUMB_PROC "file-pdf-load-thumb"
+#define PLUG_IN_BINARY "file-pdf-load"
+#define PLUG_IN_ROLE "gimp-file-pdf-load"
+
+#define THUMBNAIL_SIZE 128
+
+#define GIMP_PLUGIN_PDF_LOAD_ERROR gimp_plugin_pdf_load_error_quark ()
+static GQuark
+gimp_plugin_pdf_load_error_quark (void)
+{
+ return g_quark_from_static_string ("gimp-plugin-pdf-load-error-quark");
+}
+
+/* Structs for the load dialog */
+typedef struct
+{
+ GimpPageSelectorTarget target;
+ gdouble resolution;
+ gboolean antialias;
+ gchar *PDF_password;
+} PdfLoadVals;
+
+static PdfLoadVals loadvals =
+{
+ GIMP_PAGE_SELECTOR_TARGET_LAYERS,
+ 100.00, /* 100 dpi */
+ TRUE,
+ NULL
+};
+
+typedef struct
+{
+ gint n_pages;
+ gint *pages;
+} PdfSelectedPages;
+
+/* Declare local functions */
+static void query (void);
+static void run (const gchar *name,
+ gint nparams,
+ const GimpParam *param,
+ gint *nreturn_vals,
+ GimpParam **return_vals);
+
+static gint32 load_image (PopplerDocument *doc,
+ const gchar *filename,
+ GimpRunMode run_mode,
+ GimpPageSelectorTarget target,
+ guint32 resolution,
+ gboolean antialias,
+ PdfSelectedPages *pages);
+
+static GimpPDBStatusType load_dialog (PopplerDocument *doc,
+ PdfSelectedPages *pages);
+
+static PopplerDocument * open_document (const gchar *filename,
+ const gchar *PDF_password,
+ GimpRunMode run_mode,
+ GError **error);
+
+static cairo_surface_t * get_thumb_surface (PopplerDocument *doc,
+ gint page,
+ gint preferred_size);
+
+static GdkPixbuf * get_thumb_pixbuf (PopplerDocument *doc,
+ gint page,
+ gint preferred_size);
+
+static gint32 layer_from_surface (gint32 image,
+ const gchar *layer_name,
+ gint position,
+ cairo_surface_t *surface,
+ gdouble progress_start,
+ gdouble progress_scale);
+
+/**
+ ** the following was formerly part of
+ ** gimpresolutionentry.h and gimpresolutionentry.c,
+ ** moved here because this is the only thing that uses
+ ** it, and it is undesirable to maintain all that api.
+ ** Most unused functions have been removed.
+ **/
+#define GIMP_TYPE_RESOLUTION_ENTRY (gimp_resolution_entry_get_type ())
+#define GIMP_RESOLUTION_ENTRY(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_RESOLUTION_ENTRY, GimpResolutionEntry))
+#define GIMP_RESOLUTION_ENTRY_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_RESOLUTION_ENTRY, GimpResolutionEntryClass))
+#define GIMP_IS_RESOLUTION_ENTRY(obj) (G_TYPE_CHECK_INSTANCE_TYPE (obj, GIMP_TYPE_RESOLUTION_ENTRY))
+#define GIMP_IS_RESOLUTION_ENTRY_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_RESOLUTION_ENTRY))
+#define GIMP_RESOLUTION_ENTRY_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_RESOLUTION_ENTRY, GimpResolutionEntryClass))
+
+
+typedef struct _GimpResolutionEntry GimpResolutionEntry;
+typedef struct _GimpResolutionEntryClass GimpResolutionEntryClass;
+
+typedef struct _GimpResolutionEntryField GimpResolutionEntryField;
+
+struct _GimpResolutionEntryField
+{
+ GimpResolutionEntry *gre;
+ GimpResolutionEntryField *corresponding;
+
+ gboolean size;
+
+ GtkWidget *label;
+
+ guint changed_signal;
+
+ GtkAdjustment *adjustment;
+ GtkWidget *spinbutton;
+
+ gdouble phy_size;
+
+ gdouble value;
+ gdouble min_value;
+ gdouble max_value;
+
+ gint stop_recursion;
+};
+
+
+struct _GimpResolutionEntry
+{
+ GtkTable parent_instance;
+
+ GimpUnit size_unit;
+ GimpUnit unit;
+
+ GtkWidget *unitmenu;
+ GtkWidget *chainbutton;
+
+ GimpResolutionEntryField width;
+ GimpResolutionEntryField height;
+ GimpResolutionEntryField x;
+ GimpResolutionEntryField y;
+
+};
+
+struct _GimpResolutionEntryClass
+{
+ GtkTableClass parent_class;
+
+ void (* value_changed) (GimpResolutionEntry *gse);
+ void (* refval_changed) (GimpResolutionEntry *gse);
+ void (* unit_changed) (GimpResolutionEntry *gse);
+};
+
+
+GType gimp_resolution_entry_get_type (void) G_GNUC_CONST;
+
+GtkWidget * gimp_resolution_entry_new (const gchar *width_label,
+ gdouble width,
+ const gchar *height_label,
+ gdouble height,
+ GimpUnit size_unit,
+ const gchar *res_label,
+ gdouble initial_res,
+ GimpUnit initial_unit);
+
+GtkWidget * gimp_resolution_entry_attach_label (GimpResolutionEntry *gre,
+ const gchar *text,
+ gint row,
+ gint column,
+ gfloat alignment);
+
+gdouble gimp_resolution_entry_get_x_in_dpi (GimpResolutionEntry *gre);
+
+gdouble gimp_resolution_entry_get_y_in_dpi (GimpResolutionEntry *gre);
+
+
+/* signal callback convenience functions */
+void gimp_resolution_entry_update_x_in_dpi (GimpResolutionEntry *gre,
+ gpointer data);
+
+void gimp_resolution_entry_update_y_in_dpi (GimpResolutionEntry *gre,
+ gpointer data);
+
+
+enum
+{
+ WIDTH_CHANGED,
+ HEIGHT_CHANGED,
+ X_CHANGED,
+ Y_CHANGED,
+ UNIT_CHANGED,
+ LAST_SIGNAL
+};
+
+static void gimp_resolution_entry_class_init (GimpResolutionEntryClass *class);
+static void gimp_resolution_entry_init (GimpResolutionEntry *gre);
+
+static void gimp_resolution_entry_update_value (GimpResolutionEntryField *gref,
+ gdouble value);
+static void gimp_resolution_entry_value_callback (GtkWidget *widget,
+ gpointer data);
+static void gimp_resolution_entry_update_unit (GimpResolutionEntry *gre,
+ GimpUnit unit);
+static void gimp_resolution_entry_unit_callback (GtkWidget *widget,
+ GimpResolutionEntry *gre);
+
+static void gimp_resolution_entry_field_init (GimpResolutionEntry *gre,
+ GimpResolutionEntryField *gref,
+ GimpResolutionEntryField *corresponding,
+ guint changed_signal,
+ gdouble initial_val,
+ GimpUnit initial_unit,
+ gboolean size,
+ gint spinbutton_width);
+
+static void gimp_resolution_entry_format_label (GimpResolutionEntry *gre,
+ GtkWidget *label,
+ gdouble size);
+
+/**
+ ** end of gimpresolutionentry stuff
+ ** the actual code can be found at the end of this file
+ **/
+const GimpPlugInInfo PLUG_IN_INFO =
+{
+ NULL, /* init_proc */
+ NULL, /* quit_proc */
+ query, /* query_proc */
+ run, /* run_proc */
+};
+
+
+MAIN ()
+
+static void
+query (void)
+{
+ static const GimpParamDef load_args[] =
+ {
+ { GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" },
+ { GIMP_PDB_STRING, "filename", "The name of the file to load" },
+ { GIMP_PDB_STRING, "raw-filename", "The name entered" }
+ };
+
+ static const GimpParamDef load2_args[] =
+ {
+ { GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" },
+ { GIMP_PDB_STRING, "filename", "The name of the file to load" },
+ { GIMP_PDB_STRING, "raw-filename", "The name entered" },
+ { GIMP_PDB_STRING, "pdf-password", "The password to decrypt the encrypted PDF file" },
+ { GIMP_PDB_INT32, "n-pages", "Number of pages to load (0 for all)" },
+ { GIMP_PDB_INT32ARRAY,"pages", "The pages to load in the expected order" },
+ /* XXX: Nice to have API at some point, but needs work
+ { GIMP_PDB_INT32, "resolution", "Resolution to rasterize to (dpi)" },
+ { GIMP_PDB_INT32, "antialiasing", "Use anti-aliasing" }, */
+ };
+
+ static const GimpParamDef load_return_vals[] =
+ {
+ { GIMP_PDB_IMAGE, "image", "Output image" }
+ };
+
+ static const GimpParamDef thumb_args[] =
+ {
+ { GIMP_PDB_STRING, "filename", "The name of the file to load" },
+ { GIMP_PDB_INT32, "thumb-size", "Preferred thumbnail size" }
+ };
+
+ static const GimpParamDef thumb_return_vals[] =
+ {
+ { GIMP_PDB_IMAGE, "image", "Thumbnail image" },
+ { GIMP_PDB_INT32, "image-width", "Width of full-sized image" },
+ { GIMP_PDB_INT32, "image-height", "Height of full-sized image" },
+ { GIMP_PDB_INT32, "image-type", "Image type" },
+ { GIMP_PDB_INT32, "num-layers", "Number of pages" }
+ };
+
+ gimp_install_procedure (LOAD_PROC,
+ "Load file in PDF format",
+ "Loads files in Adobe's Portable Document Format. "
+ "PDF is designed to be easily processed by a variety "
+ "of different platforms, and is a distant cousin of "
+ "PostScript.\n"
+ "If the PDF document has multiple pages, only the first "
+ "page will be loaded. Call file_pdf_load2() to load "
+ "several pages as layers.",
+ "Nathan Summers",
+ "Nathan Summers",
+ "2005",
+ N_("Portable Document Format"),
+ NULL,
+ GIMP_PLUGIN,
+ G_N_ELEMENTS (load_args),
+ G_N_ELEMENTS (load_return_vals),
+ load_args, load_return_vals);
+
+ gimp_install_procedure (LOAD2_PROC,
+ "Load file in PDF format",
+ "Loads files in Adobe's Portable Document Format. "
+ "PDF is designed to be easily processed by a variety "
+ "of different platforms, and is a distant cousin of "
+ "PostScript.\n"
+ "This procedure adds extra parameters to "
+ "file-pdf-load to open encrypted PDF and to allow "
+ "multiple page loading.",
+ "Nathan Summers, Lionel N.",
+ "Nathan Summers, Lionel N.",
+ "2005, 2017",
+ N_("Portable Document Format"),
+ NULL,
+ GIMP_PLUGIN,
+ G_N_ELEMENTS (load2_args),
+ G_N_ELEMENTS (load_return_vals),
+ load2_args, load_return_vals);
+
+ gimp_register_file_handler_mime (LOAD2_PROC, "application/pdf");
+ gimp_register_magic_load_handler (LOAD2_PROC,
+ "pdf",
+ "",
+ "0, string,%PDF-");
+
+ gimp_install_procedure (LOAD_THUMB_PROC,
+ "Loads a preview from a PDF file.",
+ "Loads a small preview of the first page of the PDF "
+ "format file. Uses the embedded thumbnail if "
+ "present.",
+ "Nathan Summers",
+ "Nathan Summers",
+ "2005",
+ NULL,
+ NULL,
+ GIMP_PLUGIN,
+ G_N_ELEMENTS (thumb_args),
+ G_N_ELEMENTS (thumb_return_vals),
+ thumb_args, thumb_return_vals);
+
+ gimp_register_thumbnail_loader (LOAD2_PROC, LOAD_THUMB_PROC);
+}
+
+static void
+run (const gchar *name,
+ gint nparams,
+ const GimpParam *param,
+ gint *nreturn_vals,
+ GimpParam **return_vals)
+{
+ static GimpParam values[7];
+ GimpPDBStatusType status = GIMP_PDB_SUCCESS;
+ gint32 image_ID = -1;
+ PopplerDocument *doc = NULL;
+ GError *error = NULL;
+
+ INIT_I18N ();
+ gegl_init (NULL, NULL);
+
+ *nreturn_vals = 1;
+ *return_vals = values;
+
+ values[0].type = GIMP_PDB_STATUS;
+ values[0].data.d_status = GIMP_PDB_EXECUTION_ERROR;
+
+ if (strcmp (name, LOAD_PROC) == 0 || strcmp (name, LOAD2_PROC) == 0)
+ {
+ PdfSelectedPages pages = { 0, NULL };
+ GimpRunMode run_mode;
+
+ run_mode = param[0].data.d_int32;
+ switch (run_mode)
+ {
+ case GIMP_RUN_INTERACTIVE:
+ /* Possibly retrieve last settings */
+ if (strcmp (name, LOAD_PROC) == 0)
+ {
+ gimp_get_data (LOAD_PROC, &loadvals);
+ }
+ else if (strcmp (name, LOAD2_PROC) == 0)
+ {
+ gimp_get_data (LOAD2_PROC, &loadvals);
+ }
+ gimp_ui_init (PLUG_IN_BINARY, FALSE);
+ doc = open_document (param[1].data.d_string,
+ loadvals.PDF_password,
+ run_mode, &error);
+
+ if (!doc)
+ {
+ status = GIMP_PDB_EXECUTION_ERROR;
+ break;
+ }
+
+ status = load_dialog (doc, &pages);
+ if (status == GIMP_PDB_SUCCESS)
+ {
+ if (strcmp (name, LOAD_PROC) == 0)
+ {
+ gimp_set_data (LOAD_PROC, &loadvals, sizeof(loadvals));
+ }
+ else if (strcmp (name, LOAD2_PROC) == 0)
+ {
+ gimp_set_data (LOAD2_PROC, &loadvals, sizeof(loadvals));
+ }
+ }
+ break;
+
+ case GIMP_RUN_WITH_LAST_VALS:
+ /* FIXME: implement last vals mode */
+ status = GIMP_PDB_EXECUTION_ERROR;
+ break;
+
+ case GIMP_RUN_NONINTERACTIVE:
+ if (strcmp (name, LOAD_PROC) == 0)
+ {
+ doc = open_document (param[1].data.d_string,
+ NULL, run_mode, &error);
+ }
+ else if (strcmp (name, LOAD2_PROC) == 0)
+ {
+ doc = open_document (param[1].data.d_string,
+ param[3].data.d_string,
+ run_mode, &error);
+ }
+
+ if (doc)
+ {
+ PopplerPage *test_page = poppler_document_get_page (doc, 0);
+
+ if (test_page)
+ {
+ if (strcmp (name, LOAD2_PROC) != 0)
+ {
+ /* For retrocompatibility, file-pdf-load always
+ * just loads the first page. */
+ pages.n_pages = 1;
+ pages.pages = g_new (gint, 1);
+ pages.pages[0] = 0;
+
+ g_object_unref (test_page);
+ }
+ else
+ {
+ gint i;
+ gint doc_n_pages;
+
+ doc_n_pages = poppler_document_get_n_pages (doc);
+ /* The number of imported pages may be bigger than
+ * the number of pages from the original document.
+ * Indeed it is possible to duplicate some pages
+ * by setting the same number several times in the
+ * "pages" argument.
+ * Not ceiling this value is *not* an error.
+ */
+ pages.n_pages = param[4].data.d_int32;
+ if (pages.n_pages <= 0)
+ {
+ pages.n_pages = doc_n_pages;
+ pages.pages = g_new (gint, pages.n_pages);
+ for (i = 0; i < pages.n_pages; i++)
+ pages.pages[i] = i;
+ }
+ else
+ {
+ pages.pages = g_new (gint, pages.n_pages);
+ for (i = 0; i < pages.n_pages; i++)
+ {
+ if (param[5].data.d_int32array[i] >= doc_n_pages)
+ {
+ status = GIMP_PDB_EXECUTION_ERROR;
+ g_set_error (&error, GIMP_PLUGIN_PDF_LOAD_ERROR, 0,
+ /* TRANSLATORS: first argument is file name,
+ * second is out-of-range page number, third is
+ * number of pages. Specify order as in English if needed.
+ */
+ ngettext ("PDF document '%1$s' has %3$d page. Page %2$d is out of range.",
+ "PDF document '%1$s' has %3$d pages. Page %2$d is out of range.",
+ doc_n_pages),
+ param[1].data.d_string,
+ param[5].data.d_int32array[i],
+ doc_n_pages);
+ break;
+ }
+ else
+ {
+ pages.pages[i] = param[5].data.d_int32array[i];
+ }
+ }
+ }
+ g_object_unref (test_page);
+ }
+ }
+ else
+ {
+ status = GIMP_PDB_EXECUTION_ERROR;
+ g_object_unref (doc);
+ }
+ }
+ else
+ {
+ status = GIMP_PDB_EXECUTION_ERROR;
+ }
+ break;
+ }
+
+ if (status == GIMP_PDB_SUCCESS)
+ {
+ image_ID = load_image (doc, param[1].data.d_string,
+ run_mode,
+ loadvals.target,
+ loadvals.resolution,
+ loadvals.antialias,
+ &pages);
+
+ if (image_ID != -1)
+ {
+ *nreturn_vals = 2;
+ values[1].type = GIMP_PDB_IMAGE;
+ values[1].data.d_image = image_ID;
+ }
+ else
+ {
+ status = GIMP_PDB_EXECUTION_ERROR;
+ }
+ }
+
+ if (doc)
+ g_object_unref (doc);
+
+ g_free (pages.pages);
+ }
+ else if (strcmp (name, LOAD_THUMB_PROC) == 0)
+ {
+ if (nparams < 2)
+ {
+ status = GIMP_PDB_CALLING_ERROR;
+ }
+ else
+ {
+ gdouble width = 0;
+ gdouble height = 0;
+ gdouble scale;
+ gint32 image = -1;
+ gint num_pages = 0;
+ cairo_surface_t *surface = NULL;
+
+ /* Possibly retrieve last settings */
+ if (strcmp (name, LOAD_PROC) == 0)
+ {
+ gimp_get_data (LOAD_PROC, &loadvals);
+ }
+ else if (strcmp (name, LOAD2_PROC) == 0)
+ {
+ gimp_get_data (LOAD2_PROC, &loadvals);
+ }
+
+ doc = open_document (param[0].data.d_string,
+ loadvals.PDF_password,
+ GIMP_RUN_NONINTERACTIVE,
+ &error);
+
+ if (doc)
+ {
+ PopplerPage *page = poppler_document_get_page (doc, 0);
+
+ if (page)
+ {
+ poppler_page_get_size (page, &width, &height);
+
+ g_object_unref (page);
+ }
+
+ num_pages = poppler_document_get_n_pages (doc);
+
+ surface = get_thumb_surface (doc, 0, param[1].data.d_int32);
+
+ g_object_unref (doc);
+ }
+
+ if (surface)
+ {
+ image = gimp_image_new (cairo_image_surface_get_width (surface),
+ cairo_image_surface_get_height (surface),
+ GIMP_RGB);
+
+ gimp_image_undo_disable (image);
+
+
+ layer_from_surface (image, "thumbnail", 0, surface, 0.0, 1.0);
+ cairo_surface_destroy (surface);
+
+ gimp_image_undo_enable (image);
+ gimp_image_clean_all (image);
+ }
+
+ scale = loadvals.resolution / gimp_unit_get_factor (GIMP_UNIT_POINT);
+
+ width *= scale;
+ height *= scale;
+
+ if (image != -1)
+ {
+ *nreturn_vals = 6;
+
+ values[1].type = GIMP_PDB_IMAGE;
+ values[1].data.d_image = image;
+ values[2].type = GIMP_PDB_INT32;
+ values[2].data.d_int32 = width;
+ values[3].type = GIMP_PDB_INT32;
+ values[3].data.d_int32 = height;
+ values[4].type = GIMP_PDB_INT32;
+ values[4].data.d_int32 = GIMP_RGB_IMAGE;
+ values[5].type = GIMP_PDB_INT32;
+ values[5].data.d_int32 = num_pages;
+ }
+ else
+ {
+ status = GIMP_PDB_EXECUTION_ERROR;
+ }
+ }
+
+ }
+ else
+ {
+ status = GIMP_PDB_CALLING_ERROR;
+ }
+
+ if (status != GIMP_PDB_SUCCESS && error)
+ {
+ *nreturn_vals = 2;
+ values[1].type = GIMP_PDB_STRING;
+ values[1].data.d_string = error->message;
+ }
+
+ values[0].data.d_status = status;
+
+ gegl_exit ();
+}
+
+static PopplerDocument*
+open_document (const gchar *filename,
+ const gchar *PDF_password,
+ GimpRunMode run_mode,
+ GError **load_error)
+{
+ PopplerDocument *doc;
+ GFile *file;
+ GError *error = NULL;
+
+ file = g_file_new_for_path (filename);
+ doc = poppler_document_new_from_gfile (file, PDF_password, NULL, &error);
+
+ if (run_mode == GIMP_RUN_INTERACTIVE)
+ {
+ GtkWidget *label;
+
+ label = gtk_label_new (_("PDF is password protected, please input the password:"));
+ while (error &&
+ error->domain == POPPLER_ERROR &&
+ error->code == POPPLER_ERROR_ENCRYPTED)
+ {
+ GtkWidget *vbox;
+ GtkWidget *dialog;
+ GtkWidget *entry;
+ gint run;
+
+ dialog = gimp_dialog_new (_("Encrypted PDF"), PLUG_IN_ROLE,
+ NULL, 0,
+ NULL, NULL,
+ _("_Cancel"), GTK_RESPONSE_CANCEL,
+ _("_OK"), GTK_RESPONSE_OK,
+ NULL);
+ gimp_window_set_transient (GTK_WINDOW (dialog));
+ vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
+ gtk_container_set_border_width (GTK_CONTAINER (vbox), 12);
+ gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (dialog))),
+ vbox, TRUE, TRUE, 0);
+ entry = gtk_entry_new ();
+ gtk_entry_set_visibility (GTK_ENTRY (entry), FALSE);
+ gtk_entry_set_activates_default (GTK_ENTRY (entry), TRUE);
+ gtk_container_add (GTK_CONTAINER (vbox), label);
+ gtk_container_add (GTK_CONTAINER (vbox), entry);
+
+ gtk_widget_show_all (dialog);
+
+ run = gimp_dialog_run (GIMP_DIALOG (dialog));
+ if (run == GTK_RESPONSE_OK)
+ {
+ g_clear_error (&error);
+ doc = poppler_document_new_from_gfile (file,
+ gtk_entry_get_text (GTK_ENTRY (entry)),
+ NULL, &error);
+ }
+ label = gtk_label_new (_("Wrong password! Please input the right one:"));
+ gtk_widget_destroy (dialog);
+ if (run == GTK_RESPONSE_CANCEL || run == GTK_RESPONSE_DELETE_EVENT)
+ {
+ break;
+ }
+ }
+ gtk_widget_destroy (label);
+ }
+ g_object_unref (file);
+
+ /* We can't g_mapped_file_unref(mapped_file) as apparently doc has
+ * references to data in there. No big deal, this is just a
+ * short-lived plug-in.
+ */
+ if (! doc)
+ {
+ g_set_error (load_error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
+ _("Could not load '%s': %s"),
+ gimp_filename_to_utf8 (filename),
+ error->message);
+ g_error_free (error);
+ return NULL;
+ }
+
+ return doc;
+}
+
+/* FIXME: Remove this someday when we depend fully on GTK+ >= 3 */
+
+#if (!GTK_CHECK_VERSION (3, 0, 0))
+
+static cairo_format_t
+gdk_cairo_format_for_content (cairo_content_t content)
+{
+ switch (content)
+ {
+ case CAIRO_CONTENT_COLOR:
+ return CAIRO_FORMAT_RGB24;
+ case CAIRO_CONTENT_ALPHA:
+ return CAIRO_FORMAT_A8;
+ case CAIRO_CONTENT_COLOR_ALPHA:
+ default:
+ return CAIRO_FORMAT_ARGB32;
+ }
+}
+
+static cairo_surface_t *
+gdk_cairo_surface_coerce_to_image (cairo_surface_t *surface,
+ cairo_content_t content,
+ int src_x,
+ int src_y,
+ int width,
+ int height)
+{
+ cairo_surface_t *copy;
+ cairo_t *cr;
+
+ copy = cairo_image_surface_create (gdk_cairo_format_for_content (content),
+ width,
+ height);
+
+ cr = cairo_create (copy);
+ cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
+ cairo_set_source_surface (cr, surface, -src_x, -src_y);
+ cairo_paint (cr);
+ cairo_destroy (cr);
+
+ return copy;
+}
+
+static void
+convert_alpha (guchar *dest_data,
+ int dest_stride,
+ guchar *src_data,
+ int src_stride,
+ int src_x,
+ int src_y,
+ int width,
+ int height)
+{
+ int x, y;
+
+ src_data += src_stride * src_y + src_x * 4;
+
+ for (y = 0; y < height; y++) {
+ guint32 *src = (guint32 *) src_data;
+
+ for (x = 0; x < width; x++) {
+ guint alpha = src[x] >> 24;
+
+ if (alpha == 0)
+ {
+ dest_data[x * 4 + 0] = 0;
+ dest_data[x * 4 + 1] = 0;
+ dest_data[x * 4 + 2] = 0;
+ }
+ else
+ {
+ dest_data[x * 4 + 0] = (((src[x] & 0xff0000) >> 16) * 255 + alpha / 2) / alpha;
+ dest_data[x * 4 + 1] = (((src[x] & 0x00ff00) >> 8) * 255 + alpha / 2) / alpha;
+ dest_data[x * 4 + 2] = (((src[x] & 0x0000ff) >> 0) * 255 + alpha / 2) / alpha;
+ }
+ dest_data[x * 4 + 3] = alpha;
+ }
+
+ src_data += src_stride;
+ dest_data += dest_stride;
+ }
+}
+
+static void
+convert_no_alpha (guchar *dest_data,
+ int dest_stride,
+ guchar *src_data,
+ int src_stride,
+ int src_x,
+ int src_y,
+ int width,
+ int height)
+{
+ int x, y;
+
+ src_data += src_stride * src_y + src_x * 4;
+
+ for (y = 0; y < height; y++) {
+ guint32 *src = (guint32 *) src_data;
+
+ for (x = 0; x < width; x++) {
+ dest_data[x * 3 + 0] = src[x] >> 16;
+ dest_data[x * 3 + 1] = src[x] >> 8;
+ dest_data[x * 3 + 2] = src[x];
+ }
+
+ src_data += src_stride;
+ dest_data += dest_stride;
+ }
+}
+
+/**
+ * gdk_pixbuf_get_from_surface:
+ * @surface: surface to copy from
+ * @src_x: Source X coordinate within @surface
+ * @src_y: Source Y coordinate within @surface
+ * @width: Width in pixels of region to get
+ * @height: Height in pixels of region to get
+ *
+ * Transfers image data from a #cairo_surface_t and converts it to an RGB(A)
+ * representation inside a #GdkPixbuf. This allows you to efficiently read
+ * individual pixels from cairo surfaces. For #GdkWindows, use
+ * gdk_pixbuf_get_from_window() instead.
+ *
+ * This function will create an RGB pixbuf with 8 bits per channel.
+ * The pixbuf will contain an alpha channel if the @surface contains one.
+ *
+ * Return value: (transfer full): A newly-created pixbuf with a reference
+ * count of 1, or %NULL on error
+ */
+static GdkPixbuf *
+gdk_pixbuf_get_from_surface (cairo_surface_t *surface,
+ gint src_x,
+ gint src_y,
+ gint width,
+ gint height)
+{
+ cairo_content_t content;
+ GdkPixbuf *dest;
+
+ /* General sanity checks */
+ g_return_val_if_fail (surface != NULL, NULL);
+ g_return_val_if_fail (width > 0 && height > 0, NULL);
+
+ content = cairo_surface_get_content (surface) | CAIRO_CONTENT_COLOR;
+ dest = gdk_pixbuf_new (GDK_COLORSPACE_RGB,
+ !!(content & CAIRO_CONTENT_ALPHA),
+ 8,
+ width, height);
+
+ surface = gdk_cairo_surface_coerce_to_image (surface, content,
+ src_x, src_y,
+ width, height);
+ cairo_surface_flush (surface);
+ if (cairo_surface_status (surface) || dest == NULL)
+ {
+ cairo_surface_destroy (surface);
+ return NULL;
+ }
+
+ if (gdk_pixbuf_get_has_alpha (dest))
+ convert_alpha (gdk_pixbuf_get_pixels (dest),
+ gdk_pixbuf_get_rowstride (dest),
+ cairo_image_surface_get_data (surface),
+ cairo_image_surface_get_stride (surface),
+ 0, 0,
+ width, height);
+ else
+ convert_no_alpha (gdk_pixbuf_get_pixels (dest),
+ gdk_pixbuf_get_rowstride (dest),
+ cairo_image_surface_get_data (surface),
+ cairo_image_surface_get_stride (surface),
+ 0, 0,
+ width, height);
+
+ cairo_surface_destroy (surface);
+ return dest;
+}
+
+#endif
+
+static gint32
+layer_from_surface (gint32 image,
+ const gchar *layer_name,
+ gint position,
+ cairo_surface_t *surface,
+ gdouble progress_start,
+ gdouble progress_scale)
+{
+ gint32 layer;
+
+ layer = gimp_layer_new_from_surface (image, layer_name, surface,
+ progress_start,
+ progress_start + progress_scale);
+ gimp_image_insert_layer (image, layer, -1, position);
+
+ return layer;
+}
+
+static cairo_surface_t *
+render_page_to_surface (PopplerPage *page,
+ int width,
+ int height,
+ double scale,
+ gboolean antialias)
+{
+ cairo_surface_t *surface;
+ cairo_t *cr;
+
+ surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, width, height);
+ cr = cairo_create (surface);
+
+ cairo_save (cr);
+ cairo_translate (cr, 0.0, 0.0);
+
+ if (scale != 1.0)
+ cairo_scale (cr, scale, scale);
+
+ if (! antialias)
+ {
+ cairo_font_options_t *options = cairo_font_options_create ();
+
+ cairo_get_font_options (cr, options);
+ cairo_font_options_set_antialias (options, CAIRO_ANTIALIAS_NONE);
+ cairo_set_font_options (cr, options);
+ cairo_font_options_destroy (options);
+
+ cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE);
+ }
+
+ poppler_page_render (page, cr);
+ cairo_restore (cr);
+
+ cairo_set_operator (cr, CAIRO_OPERATOR_DEST_OVER);
+ cairo_set_source_rgb (cr, 1.0, 1.0, 1.0);
+ cairo_paint (cr);
+
+ cairo_destroy (cr);
+
+ return surface;
+}
+
+#if 0
+
+/* This is currently unused, but we'll have it here in case the military
+ wants it. */
+
+static GdkPixbuf *
+render_page_to_pixbuf (PopplerPage *page,
+ int width,
+ int height,
+ double scale)
+{
+ GdkPixbuf *pixbuf;
+ cairo_surface_t *surface;
+
+ surface = render_page_to_surface (page, width, height, scale);
+ pixbuf = gdk_pixbuf_get_from_surface (surface, 0, 0,
+ cairo_image_surface_get_width (surface),
+ cairo_image_surface_get_height (surface));
+ cairo_surface_destroy (surface);
+
+ return pixbuf;
+}
+
+#endif
+
+static gint32
+load_image (PopplerDocument *doc,
+ const gchar *filename,
+ GimpRunMode run_mode,
+ GimpPageSelectorTarget target,
+ guint32 resolution,
+ gboolean antialias,
+ PdfSelectedPages *pages)
+{
+ gint32 image_ID = 0;
+ gint32 *images = NULL;
+ gint i;
+ gdouble scale;
+ gdouble doc_progress = 0;
+
+ if (target == GIMP_PAGE_SELECTOR_TARGET_IMAGES)
+ images = g_new0 (gint32, pages->n_pages);
+
+ gimp_progress_init_printf (_("Opening '%s'"),
+ gimp_filename_to_utf8 (filename));
+
+ scale = resolution / gimp_unit_get_factor (GIMP_UNIT_POINT);
+
+ /* read the file */
+
+ for (i = 0; i < pages->n_pages; i++)
+ {
+ PopplerPage *page;
+ gchar *page_label;
+ gdouble page_width;
+ gdouble page_height;
+
+ cairo_surface_t *surface;
+ gint width;
+ gint height;
+
+ page = poppler_document_get_page (doc, pages->pages[i]);
+
+ poppler_page_get_size (page, &page_width, &page_height);
+ width = page_width * scale;
+ height = page_height * scale;
+
+ g_object_get (G_OBJECT (page), "label", &page_label, NULL);
+
+ if (! image_ID)
+ {
+ gchar *name;
+
+ image_ID = gimp_image_new (width, height, GIMP_RGB);
+ gimp_image_undo_disable (image_ID);
+
+ if (target == GIMP_PAGE_SELECTOR_TARGET_IMAGES)
+ name = g_strdup_printf (_("%s-%s"), filename, page_label);
+ else
+ name = g_strdup_printf (_("%s-pages"), filename);
+
+ gimp_image_set_filename (image_ID, name);
+ g_free (name);
+
+ gimp_image_set_resolution (image_ID, resolution, resolution);
+ }
+
+ surface = render_page_to_surface (page, width, height, scale, antialias);
+
+ layer_from_surface (image_ID, page_label, 0, surface,
+ doc_progress, 1.0 / pages->n_pages);
+
+ g_free (page_label);
+ cairo_surface_destroy (surface);
+
+ doc_progress = (double) (i + 1) / pages->n_pages;
+ gimp_progress_update (doc_progress);
+
+ if (target == GIMP_PAGE_SELECTOR_TARGET_IMAGES)
+ {
+ images[i] = image_ID;
+
+ gimp_image_undo_enable (image_ID);
+ gimp_image_clean_all (image_ID);
+
+ image_ID = 0;
+ }
+ }
+ gimp_progress_update (1.0);
+
+ if (image_ID)
+ {
+ gimp_image_undo_enable (image_ID);
+ gimp_image_clean_all (image_ID);
+ }
+
+ if (target == GIMP_PAGE_SELECTOR_TARGET_IMAGES)
+ {
+ if (run_mode != GIMP_RUN_NONINTERACTIVE)
+ {
+ /* Display images in reverse order. The last will be
+ * displayed by GIMP itself
+ */
+ for (i = pages->n_pages - 1; i > 0; i--)
+ gimp_display_new (images[i]);
+ }
+
+ image_ID = images[0];
+
+ g_free (images);
+ }
+
+ return image_ID;
+}
+
+static cairo_surface_t *
+get_thumb_surface (PopplerDocument *doc,
+ gint page_num,
+ gint preferred_size)
+{
+ PopplerPage *page;
+ cairo_surface_t *surface;
+
+ page = poppler_document_get_page (doc, page_num);
+
+ if (! page)
+ return NULL;
+
+ surface = poppler_page_get_thumbnail (page);
+
+ if (! surface)
+ {
+ gdouble width;
+ gdouble height;
+ gdouble scale;
+
+ poppler_page_get_size (page, &width, &height);
+
+ scale = (gdouble) preferred_size / MAX (width, height);
+
+ width *= scale;
+ height *= scale;
+
+ surface = render_page_to_surface (page, width, height, scale, TRUE);
+ }
+
+ g_object_unref (page);
+
+ return surface;
+}
+
+static GdkPixbuf *
+get_thumb_pixbuf (PopplerDocument *doc,
+ gint page_num,
+ gint preferred_size)
+{
+ cairo_surface_t *surface;
+ GdkPixbuf *pixbuf;
+
+ surface = get_thumb_surface (doc, page_num, preferred_size);
+ pixbuf = gdk_pixbuf_get_from_surface (surface, 0, 0,
+ cairo_image_surface_get_width (surface),
+ cairo_image_surface_get_height (surface));
+ cairo_surface_destroy (surface);
+
+ return pixbuf;
+}
+
+typedef struct
+{
+ PopplerDocument *document;
+ GimpPageSelector *selector;
+ gboolean stop_thumbnailing;
+} ThreadData;
+
+typedef struct
+{
+ GimpPageSelector *selector;
+ gint page_no;
+ GdkPixbuf *pixbuf;
+} IdleData;
+
+static gboolean
+idle_set_thumbnail (gpointer data)
+{
+ IdleData *idle_data = data;
+
+ gimp_page_selector_set_page_thumbnail (idle_data->selector,
+ idle_data->page_no,
+ idle_data->pixbuf);
+ g_object_unref (idle_data->pixbuf);
+ g_free (idle_data);
+
+ return FALSE;
+}
+
+static gpointer
+thumbnail_thread (gpointer data)
+{
+ ThreadData *thread_data = data;
+ gint n_pages;
+ gint i;
+
+ n_pages = poppler_document_get_n_pages (thread_data->document);
+
+ for (i = 0; i < n_pages; i++)
+ {
+ IdleData *idle_data = g_new0 (IdleData, 1);
+
+ idle_data->selector = thread_data->selector;
+ idle_data->page_no = i;
+
+ /* FIXME get preferred size from somewhere? */
+ idle_data->pixbuf = get_thumb_pixbuf (thread_data->document, i,
+ THUMBNAIL_SIZE);
+
+ g_idle_add (idle_set_thumbnail, idle_data);
+
+ if (thread_data->stop_thumbnailing)
+ break;
+ }
+
+ return NULL;
+}
+
+static GimpPDBStatusType
+load_dialog (PopplerDocument *doc,
+ PdfSelectedPages *pages)
+{
+ GtkWidget *dialog;
+ GtkWidget *vbox;
+ GtkWidget *title;
+ GtkWidget *selector;
+ GtkWidget *resolution;
+ GtkWidget *antialias;
+ GtkWidget *hbox;
+
+ ThreadData thread_data;
+ GThread *thread;
+
+ gint i;
+ gint n_pages;
+
+ gdouble width;
+ gdouble height;
+
+ gboolean run;
+
+ dialog = gimp_dialog_new (_("Import from PDF"), PLUG_IN_ROLE,
+ NULL, 0,
+ gimp_standard_help_func, LOAD_PROC,
+
+ _("_Cancel"), GTK_RESPONSE_CANCEL,
+ _("_Import"), GTK_RESPONSE_OK,
+
+ NULL);
+
+ gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
+ GTK_RESPONSE_OK,
+ GTK_RESPONSE_CANCEL,
+ -1);
+
+ gimp_window_set_transient (GTK_WINDOW (dialog));
+
+ vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
+ gtk_container_set_border_width (GTK_CONTAINER (vbox), 12);
+ gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (dialog))),
+ vbox, TRUE, TRUE, 0);
+ gtk_widget_show (vbox);
+
+ /* Title */
+ title = gimp_prop_label_new (G_OBJECT (doc), "title");
+ gtk_label_set_ellipsize (GTK_LABEL (title), PANGO_ELLIPSIZE_END);
+ gtk_box_pack_start (GTK_BOX (vbox), title, FALSE, FALSE, 0);
+ gtk_widget_show (title);
+
+ /* Page Selector */
+ selector = gimp_page_selector_new ();
+ gtk_widget_set_size_request (selector, 380, 360);
+ gtk_box_pack_start (GTK_BOX (vbox), selector, TRUE, TRUE, 0);
+ gtk_widget_show (selector);
+
+ n_pages = poppler_document_get_n_pages (doc);
+
+ if (n_pages <= 0)
+ {
+ g_message (_("Error getting number of pages from the given PDF file."));
+ return GIMP_PDB_EXECUTION_ERROR;
+ }
+
+ gimp_page_selector_set_n_pages (GIMP_PAGE_SELECTOR (selector), n_pages);
+ gimp_page_selector_set_target (GIMP_PAGE_SELECTOR (selector),
+ loadvals.target);
+
+ for (i = 0; i < n_pages; i++)
+ {
+ PopplerPage *page;
+ gchar *label;
+
+ page = poppler_document_get_page (doc, i);
+ g_object_get (G_OBJECT (page), "label", &label, NULL);
+
+ gimp_page_selector_set_page_label (GIMP_PAGE_SELECTOR (selector), i,
+ label);
+
+ if (i == 0)
+ poppler_page_get_size (page, &width, &height);
+
+ g_object_unref (page);
+ g_free (label);
+ }
+ /* Since selecting none will be equivalent to selecting all, this is
+ * only useful as a feedback for the default behavior of selecting all
+ * pages. */
+ gimp_page_selector_select_all (GIMP_PAGE_SELECTOR (selector));
+
+ g_signal_connect_swapped (selector, "activate",
+ G_CALLBACK (gtk_window_activate_default),
+ dialog);
+
+ thread_data.document = doc;
+ thread_data.selector = GIMP_PAGE_SELECTOR (selector);
+ thread_data.stop_thumbnailing = FALSE;
+
+ thread = g_thread_new ("thumbnailer", thumbnail_thread, &thread_data);
+
+ /* Resolution */
+
+ hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
+ gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
+ gtk_widget_show (hbox);
+
+ resolution = gimp_resolution_entry_new (_("_Width (pixels):"), width,
+ _("_Height (pixels):"), height,
+ GIMP_UNIT_POINT,
+ _("_Resolution:"),
+ loadvals.resolution, GIMP_UNIT_INCH);
+
+ gtk_box_pack_start (GTK_BOX (hbox), resolution, FALSE, FALSE, 0);
+ gtk_widget_show (resolution);
+
+ g_signal_connect (resolution, "x-changed",
+ G_CALLBACK (gimp_resolution_entry_update_x_in_dpi),
+ &loadvals.resolution);
+
+ /* Antialiasing*/
+ antialias = gtk_check_button_new_with_mnemonic (_("Use _Anti-aliasing"));
+ gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (antialias), loadvals.antialias);
+ gtk_box_pack_start (GTK_BOX (vbox), antialias, FALSE, FALSE, 0);
+
+ g_signal_connect (antialias, "toggled",
+ G_CALLBACK (gimp_toggle_button_update), &loadvals.antialias);
+ gtk_widget_show (antialias);
+
+ /* Setup done; display the dialog */
+ gtk_widget_show (dialog);
+
+ /* run the dialog */
+ run = (gimp_dialog_run (GIMP_DIALOG (dialog)) == GTK_RESPONSE_OK);
+
+ loadvals.target =
+ gimp_page_selector_get_target (GIMP_PAGE_SELECTOR (selector));
+
+ pages->pages =
+ gimp_page_selector_get_selected_pages (GIMP_PAGE_SELECTOR (selector),
+ &pages->n_pages);
+
+ /* select all if none selected */
+ if (pages->n_pages == 0)
+ {
+ gimp_page_selector_select_all (GIMP_PAGE_SELECTOR (selector));
+
+ pages->pages =
+ gimp_page_selector_get_selected_pages (GIMP_PAGE_SELECTOR (selector),
+ &pages->n_pages);
+ }
+
+ /* cleanup */
+ thread_data.stop_thumbnailing = TRUE;
+ g_thread_join (thread);
+
+ return run ? GIMP_PDB_SUCCESS : GIMP_PDB_CANCEL;
+}
+
+
+/**
+ ** code for GimpResolutionEntry widget, formerly in libgimpwidgets
+ **/
+
+static guint gimp_resolution_entry_signals[LAST_SIGNAL] = { 0 };
+
+static GtkTableClass *parent_class = NULL;
+
+
+GType
+gimp_resolution_entry_get_type (void)
+{
+ static GType gre_type = 0;
+
+ if (! gre_type)
+ {
+ const GTypeInfo gre_info =
+ {
+ sizeof (GimpResolutionEntryClass),
+ (GBaseInitFunc) NULL,
+ (GBaseFinalizeFunc) NULL,
+ (GClassInitFunc) gimp_resolution_entry_class_init,
+ NULL, /* class_finalize */
+ NULL, /* class_data */
+ sizeof (GimpResolutionEntry),
+ 0, /* n_preallocs */
+ (GInstanceInitFunc) gimp_resolution_entry_init,
+ };
+
+ gre_type = g_type_register_static (GTK_TYPE_TABLE,
+ "GimpResolutionEntry",
+ &gre_info, 0);
+ }
+
+ return gre_type;
+}
+
+static void
+gimp_resolution_entry_class_init (GimpResolutionEntryClass *klass)
+{
+ parent_class = g_type_class_peek_parent (klass);
+
+ gimp_resolution_entry_signals[HEIGHT_CHANGED] =
+ g_signal_new ("height-changed",
+ G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_FIRST,
+ G_STRUCT_OFFSET (GimpResolutionEntryClass, value_changed),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+
+ gimp_resolution_entry_signals[WIDTH_CHANGED] =
+ g_signal_new ("width-changed",
+ G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_FIRST,
+ G_STRUCT_OFFSET (GimpResolutionEntryClass, value_changed),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+
+ gimp_resolution_entry_signals[X_CHANGED] =
+ g_signal_new ("x-changed",
+ G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_FIRST,
+ G_STRUCT_OFFSET (GimpResolutionEntryClass, value_changed),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+
+ gimp_resolution_entry_signals[Y_CHANGED] =
+ g_signal_new ("y-changed",
+ G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_FIRST,
+ G_STRUCT_OFFSET (GimpResolutionEntryClass, refval_changed),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+
+ gimp_resolution_entry_signals[UNIT_CHANGED] =
+ g_signal_new ("unit-changed",
+ G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_FIRST,
+ G_STRUCT_OFFSET (GimpResolutionEntryClass, unit_changed),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+
+ klass->value_changed = NULL;
+ klass->refval_changed = NULL;
+ klass->unit_changed = NULL;
+}
+
+static void
+gimp_resolution_entry_init (GimpResolutionEntry *gre)
+{
+ gre->unitmenu = NULL;
+ gre->unit = GIMP_UNIT_INCH;
+
+ gtk_table_set_col_spacings (GTK_TABLE (gre), 4);
+ gtk_table_set_row_spacings (GTK_TABLE (gre), 2);
+}
+
+static void
+gimp_resolution_entry_field_init (GimpResolutionEntry *gre,
+ GimpResolutionEntryField *gref,
+ GimpResolutionEntryField *corresponding,
+ guint changed_signal,
+ gdouble initial_val,
+ GimpUnit initial_unit,
+ gboolean size,
+ gint spinbutton_width)
+{
+ gint digits;
+
+ g_return_if_fail (GIMP_IS_RESOLUTION_ENTRY (gre));
+
+ gref->gre = gre;
+ gref->corresponding = corresponding;
+ gref->changed_signal = gimp_resolution_entry_signals[changed_signal];
+
+ if (size)
+ {
+ gref->value = initial_val /
+ gimp_unit_get_factor (initial_unit) *
+ corresponding->value *
+ gimp_unit_get_factor (gre->unit);
+
+ gref->phy_size = initial_val /
+ gimp_unit_get_factor (initial_unit);
+ }
+ else
+ {
+ gref->value = initial_val;
+ }
+
+ gref->min_value = GIMP_MIN_RESOLUTION;
+ gref->max_value = GIMP_MAX_RESOLUTION;
+ gref->adjustment = NULL;
+
+ gref->stop_recursion = 0;
+
+ gref->size = size;
+
+ if (size)
+ {
+ gref->label = g_object_new (GTK_TYPE_LABEL,
+ "xalign", 0.0,
+ "yalign", 0.5,
+ NULL);
+ gimp_label_set_attributes (GTK_LABEL (gref->label),
+ PANGO_ATTR_STYLE, PANGO_STYLE_ITALIC,
+ -1);
+
+ gimp_resolution_entry_format_label (gre, gref->label, gref->phy_size);
+ }
+
+ digits = size ? 0 : MIN (gimp_unit_get_digits (initial_unit), 5) + 1;
+
+ gref->adjustment = (GtkAdjustment *)
+ gtk_adjustment_new (gref->value,
+ gref->min_value,
+ gref->max_value,
+ 1.0, 10.0, 0.0);
+ gref->spinbutton = gimp_spin_button_new (gref->adjustment,
+ 1.0, digits);
+ gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (gref->spinbutton), TRUE);
+
+ if (spinbutton_width > 0)
+ {
+ if (spinbutton_width < 17)
+ gtk_entry_set_width_chars (GTK_ENTRY (gref->spinbutton),
+ spinbutton_width);
+ else
+ gtk_widget_set_size_request (gref->spinbutton,
+ spinbutton_width, -1);
+ }
+}
+
+/**
+ * gimp_resolution_entry_new:
+ * @width_label: Optional label for the width control.
+ * @width: Width of the item, specified in terms of @size_unit.
+ * @height_label: Optional label for the height control.
+ * @height: Height of the item, specified in terms of @size_unit.
+ * @size_unit: Unit used to specify the width and height.
+ * @res_label: Optional label for the resolution entry.
+ * @initial_res: The initial resolution.
+ * @initial_unit: The initial unit.
+ *
+ * Creates a new #GimpResolutionEntry widget.
+ *
+ * The #GimpResolutionEntry is derived from #GtkTable and will have
+ * an empty border of one cell width on each side plus an empty column left
+ * of the #GimpUnitMenu to allow the caller to add labels or other widgets.
+ *
+ * A #GimpChainButton is displayed if independent is set to %TRUE.
+ *
+ * Returns: A pointer to the new #GimpResolutionEntry widget.
+ **/
+GtkWidget *
+gimp_resolution_entry_new (const gchar *width_label,
+ gdouble width,
+ const gchar *height_label,
+ gdouble height,
+ GimpUnit size_unit,
+ const gchar *res_label,
+ gdouble initial_res,
+ GimpUnit initial_unit)
+{
+ GimpResolutionEntry *gre;
+ GtkTreeModel *model;
+
+ gre = g_object_new (GIMP_TYPE_RESOLUTION_ENTRY, NULL);
+
+ gre->unit = initial_unit;
+
+ gtk_table_resize (GTK_TABLE (gre), 4, 4);
+
+ gimp_resolution_entry_field_init (gre, &gre->x,
+ &gre->width,
+ X_CHANGED,
+ initial_res, initial_unit,
+ FALSE, 0);
+
+ gtk_table_attach_defaults (GTK_TABLE (gre), gre->x.spinbutton,
+ 1, 2,
+ 3, 4);
+
+ g_signal_connect (gre->x.adjustment, "value-changed",
+ G_CALLBACK (gimp_resolution_entry_value_callback),
+ &gre->x);
+
+ gtk_widget_show (gre->x.spinbutton);
+
+ gre->unitmenu = gimp_unit_combo_box_new ();
+ model = gtk_combo_box_get_model (GTK_COMBO_BOX (gre->unitmenu));
+ gimp_unit_store_set_has_pixels (GIMP_UNIT_STORE (model), FALSE);
+ gimp_unit_store_set_has_percent (GIMP_UNIT_STORE (model), FALSE);
+ g_object_set (model,
+ "short-format", _("pixels/%a"),
+ "long-format", _("pixels/%a"),
+ NULL);
+ gimp_unit_combo_box_set_active (GIMP_UNIT_COMBO_BOX (gre->unitmenu),
+ initial_unit);
+
+ gtk_table_attach (GTK_TABLE (gre), gre->unitmenu,
+ 3, 4, 3, 4,
+ GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
+ g_signal_connect (gre->unitmenu, "changed",
+ G_CALLBACK (gimp_resolution_entry_unit_callback),
+ gre);
+ gtk_widget_show (gre->unitmenu);
+
+ gimp_resolution_entry_field_init (gre, &gre->width,
+ &gre->x,
+ WIDTH_CHANGED,
+ width, size_unit,
+ TRUE, 0);
+
+ gtk_table_attach_defaults (GTK_TABLE (gre), gre->width.spinbutton,
+ 1, 2,
+ 1, 2);
+
+ gtk_table_attach_defaults (GTK_TABLE (gre), gre->width.label,
+ 3, 4,
+ 1, 2);
+
+ g_signal_connect (gre->width.adjustment, "value-changed",
+ G_CALLBACK (gimp_resolution_entry_value_callback),
+ &gre->width);
+
+ gtk_widget_show (gre->width.spinbutton);
+ gtk_widget_show (gre->width.label);
+
+ gimp_resolution_entry_field_init (gre, &gre->height, &gre->x,
+ HEIGHT_CHANGED,
+ height, size_unit,
+ TRUE, 0);
+
+ gtk_table_attach_defaults (GTK_TABLE (gre), gre->height.spinbutton,
+ 1, 2, 2, 3);
+
+ gtk_table_attach_defaults (GTK_TABLE (gre), gre->height.label,
+ 3, 4, 2, 3);
+
+ g_signal_connect (gre->height.adjustment, "value-changed",
+ G_CALLBACK (gimp_resolution_entry_value_callback),
+ &gre->height);
+
+ gtk_widget_show (gre->height.spinbutton);
+ gtk_widget_show (gre->height.label);
+
+ if (width_label)
+ gimp_resolution_entry_attach_label (gre, width_label, 1, 0, 0.0);
+
+ if (height_label)
+ gimp_resolution_entry_attach_label (gre, height_label, 2, 0, 0.0);
+
+ if (res_label)
+ gimp_resolution_entry_attach_label (gre, res_label, 3, 0, 0.0);
+
+ return GTK_WIDGET (gre);
+}
+
+/**
+ * gimp_resolution_entry_attach_label:
+ * @gre: The #GimpResolutionEntry you want to add a label to.
+ * @text: The text of the label.
+ * @row: The row where the label will be attached.
+ * @column: The column where the label will be attached.
+ * @alignment: The horizontal alignment of the label.
+ *
+ * Attaches a #GtkLabel to the #GimpResolutionEntry (which is a #GtkTable).
+ *
+ * Returns: A pointer to the new #GtkLabel widget.
+ **/
+GtkWidget *
+gimp_resolution_entry_attach_label (GimpResolutionEntry *gre,
+ const gchar *text,
+ gint row,
+ gint column,
+ gfloat alignment)
+{
+ GtkWidget *label;
+
+ g_return_val_if_fail (GIMP_IS_RESOLUTION_ENTRY (gre), NULL);
+ g_return_val_if_fail (text != NULL, NULL);
+
+ label = gtk_label_new_with_mnemonic (text);
+
+ if (column == 0)
+ {
+ GList *children;
+ GList *list;
+
+ children = gtk_container_get_children (GTK_CONTAINER (gre));
+
+ for (list = children; list; list = g_list_next (list))
+ {
+ GtkWidget *child = list->data;
+ gint left_attach;
+ gint top_attach;
+
+ gtk_container_child_get (GTK_CONTAINER (gre), child,
+ "left-attach", &left_attach,
+ "top-attach", &top_attach,
+ NULL);
+
+ if (left_attach == 1 && top_attach == row)
+ {
+ gtk_label_set_mnemonic_widget (GTK_LABEL (label), child);
+ break;
+ }
+ }
+
+ g_list_free (children);
+ }
+
+ gtk_label_set_xalign (GTK_LABEL (label), alignment);
+
+ gtk_table_attach (GTK_TABLE (gre), label, column, column+1, row, row+1,
+ GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
+ gtk_widget_show (label);
+
+ return label;
+}
+
+/**
+ * gimp_resolution_entry_get_x_in_dpi;
+ * @gre: The #GimpResolutionEntry you want to know the resolution of.
+ *
+ * Returns the X resolution of the #GimpResolutionEntry in pixels per inch.
+ **/
+gdouble
+gimp_resolution_entry_get_x_in_dpi (GimpResolutionEntry *gre)
+{
+ g_return_val_if_fail (GIMP_IS_RESOLUTION_ENTRY (gre), 0);
+
+ /* dots_in_one_unit * units_in_one_inch -> dpi */
+ return gre->x.value * gimp_unit_get_factor (gre->unit);
+}
+
+/**
+ * gimp_resolution_entry_get_y_in_dpi;
+ * @gre: The #GimpResolutionEntry you want to know the resolution of.
+ *
+ * Returns the Y resolution of the #GimpResolutionEntry in pixels per inch.
+ **/
+gdouble
+gimp_resolution_entry_get_y_in_dpi (GimpResolutionEntry *gre)
+{
+ g_return_val_if_fail (GIMP_IS_RESOLUTION_ENTRY (gre), 0);
+
+ return gre->y.value * gimp_unit_get_factor (gre->unit);
+}
+
+
+static void
+gimp_resolution_entry_update_value (GimpResolutionEntryField *gref,
+ gdouble value)
+{
+ if (gref->stop_recursion > 0)
+ return;
+
+ gref->value = value;
+
+ gref->stop_recursion++;
+
+ if (gref->size)
+ gimp_resolution_entry_update_value (gref->corresponding,
+ gref->value /
+ gref->phy_size /
+ gimp_unit_get_factor (gref->gre->unit));
+ else
+ {
+ gdouble factor = gimp_unit_get_factor (gref->gre->unit);
+
+ gimp_resolution_entry_update_value (&gref->gre->width,
+ gref->value *
+ gref->gre->width.phy_size *
+ factor);
+
+ gimp_resolution_entry_update_value (&gref->gre->height,
+ gref->value *
+ gref->gre->height.phy_size *
+ factor);
+ }
+
+ gtk_adjustment_set_value (gref->adjustment, value);
+
+ gref->stop_recursion--;
+
+ g_signal_emit (gref->gre, gref->changed_signal, 0);
+}
+
+static void
+gimp_resolution_entry_value_callback (GtkWidget *widget,
+ gpointer data)
+{
+ GimpResolutionEntryField *gref = (GimpResolutionEntryField *) data;
+ gdouble new_value;
+
+ new_value = gtk_adjustment_get_value (GTK_ADJUSTMENT (widget));
+
+ if (gref->value != new_value)
+ gimp_resolution_entry_update_value (gref, new_value);
+}
+
+static void
+gimp_resolution_entry_update_unit (GimpResolutionEntry *gre,
+ GimpUnit unit)
+{
+ GimpUnit old_unit;
+ gint digits;
+ gdouble factor;
+
+ old_unit = gre->unit;
+ gre->unit = unit;
+
+ digits = (gimp_unit_get_digits (GIMP_UNIT_INCH) -
+ gimp_unit_get_digits (unit));
+
+ gtk_spin_button_set_digits (GTK_SPIN_BUTTON (gre->x.spinbutton),
+ MAX (3 + digits, 3));
+
+ factor = gimp_unit_get_factor (old_unit) / gimp_unit_get_factor (unit);
+
+ gre->x.min_value *= factor;
+ gre->x.max_value *= factor;
+ gre->x.value *= factor;
+
+ gtk_adjustment_set_value (GTK_ADJUSTMENT (gre->x.adjustment),
+ gre->x.value);
+
+ gimp_resolution_entry_format_label (gre,
+ gre->width.label, gre->width.phy_size);
+ gimp_resolution_entry_format_label (gre,
+ gre->height.label, gre->height.phy_size);
+
+ g_signal_emit (gre, gimp_resolution_entry_signals[UNIT_CHANGED], 0);
+}
+
+static void
+gimp_resolution_entry_unit_callback (GtkWidget *widget,
+ GimpResolutionEntry *gre)
+{
+ GimpUnit new_unit;
+
+ new_unit = gimp_unit_combo_box_get_active (GIMP_UNIT_COMBO_BOX (widget));
+
+ if (gre->unit != new_unit)
+ gimp_resolution_entry_update_unit (gre, new_unit);
+}
+
+/**
+ * gimp_resolution_entry_update_x_in_dpi:
+ * @gre: the #GimpResolutionEntry
+ * @data: a pointer to a gdouble
+ *
+ * Convenience function to set a double to the X resolution, suitable
+ * for use as a signal callback.
+ */
+void
+gimp_resolution_entry_update_x_in_dpi (GimpResolutionEntry *gre,
+ gpointer data)
+{
+ gdouble *val;
+
+ g_return_if_fail (gre != NULL);
+ g_return_if_fail (data != NULL);
+ g_return_if_fail (GIMP_IS_RESOLUTION_ENTRY (gre));
+
+ val = (gdouble *) data;
+
+ *val = gimp_resolution_entry_get_x_in_dpi (gre);
+}
+
+/**
+ * gimp_resolution_entry_update_y_in_dpi:
+ * @gre: the #GimpResolutionEntry
+ * @data: a pointer to a gdouble
+ *
+ * Convenience function to set a double to the Y resolution, suitable
+ * for use as a signal callback.
+ */
+void
+gimp_resolution_entry_update_y_in_dpi (GimpResolutionEntry *gre,
+ gpointer data)
+{
+ gdouble *val;
+
+ g_return_if_fail (gre != NULL);
+ g_return_if_fail (data != NULL);
+ g_return_if_fail (GIMP_IS_RESOLUTION_ENTRY (gre));
+
+ val = (gdouble *) data;
+
+ *val = gimp_resolution_entry_get_y_in_dpi (gre);
+}
+
+static void
+gimp_resolution_entry_format_label (GimpResolutionEntry *gre,
+ GtkWidget *label,
+ gdouble size)
+{
+ gchar *format = g_strdup_printf ("%%.%df %%s",
+ gimp_unit_get_digits (gre->unit));
+ gchar *text = g_strdup_printf (format,
+ size * gimp_unit_get_factor (gre->unit),
+ gimp_unit_get_plural (gre->unit));
+ g_free (format);
+
+ gtk_label_set_text (GTK_LABEL (label), text);
+ g_free (text);
+}