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PIKApp/libpika/pikaprocview.c

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/* LIBPIKA - The PIKA Library
* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
*
* pikaprocview.c
*
* This library is free software: you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <https://www.gnu.org/licenses/>.
*/
/*
* dbbrowser_utils.c
* 0.08 26th sept 97 by Thomas NOEL <thomas@minet.net>
*
* 98/12/13 Sven Neumann <sven@gimp.org> : added help display
*/
#include "config.h"
#include <string.h>
#include <gegl.h>
#include <gtk/gtk.h>
#include "libpikabase/pikabase.h"
#include "libpikawidgets/pikawidgets.h"
#include "pika.h"
#include "pikaparamspecs-desc.h"
#include "pikauitypes.h"
#include "pikaprocview.h"
#include "libpika-intl.h"
/**
* SECTION: pikaprocview
* @title: PikaProcView
* @short_description: A widget showing information about a PDB procedure.
*
* A widget showing information about a PDB procedure, mainly for the
* procedure and plug-in browsers.
**/
/* local function prototypes */
static gint pika_proc_view_add_label (GtkGrid *grid,
gint row,
const gchar *left_label,
const gchar *right_label);
static GtkWidget * pika_proc_view_create_args (PikaProcedure *procedure,
gboolean return_values,
GtkSizeGroup *name_group,
GtkSizeGroup *type_group,
GtkSizeGroup *desc_group);
/* public functions */
/**
* pika_proc_view_new:
* @procedure_name: The name of a procedure.
*
* Returns: (transfer full): a new widget providing a view on a
* PIKA procedure
*
* Since: 2.4
**/
GtkWidget *
pika_proc_view_new (const gchar *procedure_name)
{
PikaProcedure *procedure;
GtkWidget *main_vbox;
GtkWidget *frame;
GtkWidget *vbox;
GtkWidget *grid;
GtkWidget *label;
GtkSizeGroup *name_group;
GtkSizeGroup *type_group;
GtkSizeGroup *desc_group;
const gchar *blurb;
const gchar *help;
const gchar *help_id;
const gchar *authors;
const gchar *copyright;
const gchar *date;
PikaPDBProcType type;
const gchar *type_str;
gint row;
g_return_val_if_fail (pika_is_canonical_identifier (procedure_name), NULL);
procedure = pika_pdb_lookup_procedure (pika_get_pdb (),
procedure_name);
type = pika_procedure_get_proc_type (procedure);
blurb = pika_procedure_get_blurb (procedure);
help = pika_procedure_get_help (procedure);
help_id = pika_procedure_get_help_id (procedure);
authors = pika_procedure_get_authors (procedure);
copyright = pika_procedure_get_copyright (procedure);
date = pika_procedure_get_date (procedure);
if (blurb && strlen (blurb) < 2) blurb = NULL;
if (help && strlen (help) < 2) help = NULL;
if (help_id && strlen (help_id) < 2) help_id = NULL;
if (authors && strlen (authors) < 2) authors = NULL;
if (copyright && strlen (copyright) < 2) copyright = NULL;
if (date && strlen (date) < 2) date = NULL;
if (blurb && help && ! strcmp (blurb, help))
help = NULL;
main_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
/* show the name */
frame = pika_frame_new (procedure_name);
label = gtk_frame_get_label_widget (GTK_FRAME (frame));
gtk_label_set_selectable (GTK_LABEL (label), TRUE);
gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8);
gtk_container_add (GTK_CONTAINER (frame), vbox);
gtk_widget_show (vbox);
if (! pika_enum_get_value (PIKA_TYPE_PDB_PROC_TYPE, type,
NULL, NULL, &type_str, NULL))
type_str = "UNKNOWN";
label = gtk_label_new (type_str);
pika_label_set_attributes (GTK_LABEL (label),
PANGO_ATTR_STYLE, PANGO_STYLE_ITALIC,
-1);
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
if (blurb)
{
label = gtk_label_new (blurb);
gtk_label_set_selectable (GTK_LABEL (label), TRUE);
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_label_set_line_wrap (GTK_LABEL (label), TRUE);
gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
}
if (type != PIKA_PDB_PROC_TYPE_INTERNAL)
{
GList *list;
grid = gtk_grid_new ();
gtk_grid_set_column_spacing (GTK_GRID (grid), 6);
gtk_grid_set_row_spacing (GTK_GRID (grid), 4);
gtk_box_pack_start (GTK_BOX (vbox), grid, FALSE, FALSE, 0);
gtk_widget_show (grid);
row = 0;
row = pika_proc_view_add_label (GTK_GRID (grid), row,
_("Image types:"),
pika_procedure_get_image_types (procedure));
row = pika_proc_view_add_label (GTK_GRID (grid), row,
_("Menu label:"),
pika_procedure_get_menu_label (procedure));
for (list = pika_procedure_get_menu_paths (procedure);
list;
list = g_list_next (list))
{
row = pika_proc_view_add_label (GTK_GRID (grid), row,
_("Menu path:"),
list->data);
}
}
name_group = gtk_size_group_new (GTK_SIZE_GROUP_HORIZONTAL);
type_group = gtk_size_group_new (GTK_SIZE_GROUP_HORIZONTAL);
desc_group = gtk_size_group_new (GTK_SIZE_GROUP_HORIZONTAL);
/* in parameters */
grid = pika_proc_view_create_args (procedure, FALSE,
name_group, type_group, desc_group);
if (grid)
{
frame = pika_frame_new (_("Parameters"));
gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
gtk_container_add (GTK_CONTAINER (frame), grid);
gtk_widget_show (grid);
}
/* out parameters */
grid = pika_proc_view_create_args (procedure, TRUE,
name_group, type_group, desc_group);
if (grid)
{
frame = pika_frame_new (_("Return Values"));
gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
gtk_container_add (GTK_CONTAINER (frame), grid);
gtk_widget_show (grid);
}
g_object_unref (name_group);
g_object_unref (type_group);
g_object_unref (desc_group);
if (! help && ! authors && ! date && ! copyright)
return main_vbox;
frame = pika_frame_new (_("Additional Information"));
gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8);
gtk_container_add (GTK_CONTAINER (frame), vbox);
gtk_widget_show (vbox);
/* show the help */
if (help)
{
label = gtk_label_new (help);
gtk_label_set_selectable (GTK_LABEL (label), TRUE);
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_label_set_line_wrap (GTK_LABEL (label), TRUE);
gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
}
/* show the authors & the copyright */
if (authors || date || copyright)
{
grid = gtk_grid_new ();
gtk_grid_set_column_spacing (GTK_GRID (grid), 6);
gtk_grid_set_row_spacing (GTK_GRID (grid), 4);
gtk_box_pack_start (GTK_BOX (vbox), grid, FALSE, FALSE, 0);
gtk_widget_show (grid);
row = 0;
row = pika_proc_view_add_label (GTK_GRID (grid), row,
_("Authors:"),
authors);
row = pika_proc_view_add_label (GTK_GRID (grid), row,
_("Date:"),
date);
row = pika_proc_view_add_label (GTK_GRID (grid), row,
_("Copyright:"),
copyright);
}
return main_vbox;
}
/* private functions */
static gint
pika_proc_view_add_label (GtkGrid *grid,
gint row,
const gchar *left_label,
const gchar *right_label)
{
if (right_label && strlen (right_label))
{
GtkWidget *label;
label = gtk_label_new (right_label);
gtk_label_set_selectable (GTK_LABEL (label), TRUE);
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_label_set_yalign (GTK_LABEL (label), 0.0);
gtk_label_set_line_wrap (GTK_LABEL (label), TRUE);
pika_grid_attach_aligned (GTK_GRID (grid), 0, row++,
left_label, 0.0, 0.0,
label, 3);
}
return row;
}
static GtkWidget *
pika_proc_view_create_args (PikaProcedure *procedure,
gboolean return_values,
GtkSizeGroup *name_group,
GtkSizeGroup *type_group,
GtkSizeGroup *desc_group)
{
GtkWidget *grid;
GParamSpec **pspecs;
gint n_pspecs;
gint i;
if (return_values)
pspecs = pika_procedure_get_return_values (procedure, &n_pspecs);
else
pspecs = pika_procedure_get_arguments (procedure, &n_pspecs);
if (! pspecs)
return NULL;
grid = gtk_grid_new ();
gtk_grid_set_column_spacing (GTK_GRID (grid), 6);
gtk_grid_set_row_spacing (GTK_GRID (grid), 4);
for (i = 0; i < n_pspecs; i++)
{
GParamSpec *pspec = pspecs[i];
GtkWidget *label;
gchar *desc;
gchar *blurb;
desc = pika_param_spec_get_desc (pspec);
if (desc)
{
blurb = g_strconcat (g_param_spec_get_blurb (pspec), " ", desc, NULL);
g_free (desc);
}
else
{
blurb = g_strdup (g_param_spec_get_blurb (pspec));
}
/* name */
label = gtk_label_new (g_param_spec_get_name (pspec));
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_label_set_yalign (GTK_LABEL (label), 0.0);
gtk_size_group_add_widget (name_group, label);
gtk_grid_attach (GTK_GRID (grid), label, 0, i, 1, 1);
gtk_widget_show (label);
/* type */
label = gtk_label_new (g_type_name (G_PARAM_SPEC_VALUE_TYPE (pspec)));
pika_label_set_attributes (GTK_LABEL (label),
PANGO_ATTR_FAMILY, "monospace",
PANGO_ATTR_STYLE, PANGO_STYLE_ITALIC,
-1);
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_label_set_yalign (GTK_LABEL (label), 0.0);
gtk_size_group_add_widget (type_group, label);
gtk_grid_attach (GTK_GRID (grid), label, 1, i, 1, 1);
gtk_widget_show (label);
/* description */
label = gtk_label_new (blurb);
gtk_label_set_selectable (GTK_LABEL (label), TRUE);
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_label_set_yalign (GTK_LABEL (label), 0.0);
gtk_label_set_line_wrap (GTK_LABEL (label), TRUE);
gtk_size_group_add_widget (desc_group, label);
gtk_grid_attach (GTK_GRID (grid), label, 2, i, 1, 1);
gtk_widget_show (label);
g_free (blurb);
}
return grid;
}
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