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002aa905db
1999-09-27 Michael Natterer <mitch@gimp.org> * app/Makefile.am * app/gimphelp.[ch] * app/gimpui.[ch]: new files * app/interface.[ch] * app/preferences_dialog.[ch] The GIMP Help System part 1: Press "F1" in any dialog to pop up the help page for this dialog. Moved the widget constructors from preferences_dialog.[ch] and the query boxes from interface.[ch] to gimpui.[ch]. The dialog constructors take a help_func and a help_data parameter and install the "F1" accelerator which emits the new "help" signal. The "help" signal callback calls help_func(help_data) which finally has to call gimp_help() which in turn invokes the help browser. Still have to find a proper way to (1) prevent "F1" being assigned to some menu item and (2) to catch "F1" while browsing the menu trees in order to pop up the help for the selected item. * app/menus.c: a <Toolbox>/File/Help... menu item. * app/commands.[ch]: a command callback for the "Help..." menu item. * app/gimprc.[ch]: new boolean gimprc variable "use_help". * app/info_dialog.[ch]: pass a help function and data to the info dialog constructor. * app/tools.[ch]: store the tools help page names in the tool info structure. Export a special tools_help_func() which shows the help page for the active tool. * app/[all files calling a dialog constructor]: pass the dialog's help page to the constructor. Most dialogs are now created by gimp_dialog_new() which also sets up the action_area and the WM delete event callback, so I removed the resp. code from these files. Fixed some minor bugs and did some other stuff but didn't change any logic except dialog creation. * plug-ins/helpbrowser/helpbrowser.c: don't try to call a running help browser and don't install any menu path (all done in app/gimphelp.[ch] now).
440 lines
12 KiB
C
440 lines
12 KiB
C
/* The GIMP -- an image manipulation program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include <math.h>
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#include "appenv.h"
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#include "buildmenu.h"
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#include "drawable.h"
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#include "gdisplay.h"
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#include "gimpui.h"
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#include "histogram_tool.h"
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#include "image_map.h"
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#include "interface.h"
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#include "libgimp/gimpintl.h"
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#define TEXT_WIDTH 45
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/* the histogram structures */
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typedef struct _HistogramTool HistogramTool;
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struct _HistogramTool
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{
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gint x, y; /* coords for last mouse click */
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};
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/* the histogram tool options */
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static ToolOptions * histogram_tool_options = NULL;
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/* the histogram tool dialog */
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static HistogramToolDialog * histogram_tool_dialog = NULL;
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/* histogram_tool action functions */
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static void histogram_tool_control (Tool *, ToolAction, gpointer);
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static HistogramToolDialog * histogram_tool_new_dialog (void);
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static void histogram_tool_close_callback (GtkWidget *, gpointer);
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static void histogram_tool_value_callback (GtkWidget *, gpointer);
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static void histogram_tool_red_callback (GtkWidget *, gpointer);
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static void histogram_tool_green_callback (GtkWidget *, gpointer);
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static void histogram_tool_blue_callback (GtkWidget *, gpointer);
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static void histogram_tool_dialog_update (HistogramToolDialog *, gint, gint);
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/* histogram_tool machinery */
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void
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histogram_tool_histogram_range (HistogramWidget *widget,
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gint start,
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gint end,
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void *user_data)
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{
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HistogramToolDialog *htd;
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gdouble pixels;
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gdouble count;
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htd = (HistogramToolDialog *) user_data;
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if (htd == NULL || htd->hist == NULL ||
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gimp_histogram_nchannels(htd->hist) <= 0)
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return;
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pixels = gimp_histogram_get_count(htd->hist, 0, 255);
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count = gimp_histogram_get_count(htd->hist, start, end);
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htd->mean = gimp_histogram_get_mean(htd->hist, htd->channel, start, end);
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htd->std_dev = gimp_histogram_get_std_dev(htd->hist, htd->channel,
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start, end);
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htd->median = gimp_histogram_get_median(htd->hist, htd->channel, start, end);
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htd->pixels = pixels;
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htd->count = count;
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htd->percentile = count / pixels;
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if (htd->shell)
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histogram_tool_dialog_update (htd, start, end);
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}
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static void
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histogram_tool_dialog_update (HistogramToolDialog *htd,
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gint start,
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gint end)
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{
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gchar text[12];
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/* mean */
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g_snprintf (text, sizeof (text), "%3.1f", htd->mean);
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gtk_label_set_text (GTK_LABEL (htd->info_labels[0]), text);
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/* std dev */
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g_snprintf (text, sizeof (text), "%3.1f", htd->std_dev);
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gtk_label_set_text (GTK_LABEL (htd->info_labels[1]), text);
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/* median */
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g_snprintf (text, sizeof (text), "%3.1f", htd->median);
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gtk_label_set_text (GTK_LABEL (htd->info_labels[2]), text);
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/* pixels */
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g_snprintf (text, sizeof (text), "%8.1f", htd->pixels);
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gtk_label_set_text (GTK_LABEL (htd->info_labels[3]), text);
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/* intensity */
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if (start == end)
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g_snprintf (text, sizeof (text), "%d", start);
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else
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g_snprintf (text, sizeof (text), "%d..%d", start, end);
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gtk_label_set_text (GTK_LABEL (htd->info_labels[4]), text);
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/* count */
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g_snprintf (text, sizeof (text), "%8.1f", htd->count);
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gtk_label_set_text (GTK_LABEL (htd->info_labels[5]), text);
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/* percentile */
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g_snprintf (text, sizeof (text), "%2.2f", htd->percentile * 100);
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gtk_label_set_text (GTK_LABEL (htd->info_labels[6]), text);
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}
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/* histogram_tool action functions */
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static void
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histogram_tool_control (Tool *tool,
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ToolAction action,
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gpointer gdisp_ptr)
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{
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switch (action)
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{
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case PAUSE:
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break;
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case RESUME:
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break;
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case HALT:
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if (histogram_tool_dialog)
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histogram_tool_close_callback (NULL, (gpointer) histogram_tool_dialog);
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break;
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default:
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break;
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}
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}
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Tool *
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tools_new_histogram_tool ()
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{
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Tool * tool;
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HistogramTool * private;
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/* The tool options */
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if (! histogram_tool_options)
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{
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histogram_tool_options = tool_options_new (_("Histogram Options"));
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tools_register (HISTOGRAM, histogram_tool_options);
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}
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tool = tools_new_tool (HISTOGRAM);
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private = g_new (HistogramTool, 1);
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tool->scroll_lock = TRUE; /* Disallow scrolling */
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tool->preserve = FALSE; /* Don't preserve on drawable change */
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tool->private = (void *) private;
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tool->control_func = histogram_tool_control;
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return tool;
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}
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void
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tools_free_histogram_tool (Tool *tool)
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{
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HistogramTool * hist;
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hist = (HistogramTool *) tool->private;
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/* Close the histogram dialog */
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if (histogram_tool_dialog)
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histogram_tool_close_callback (NULL, (gpointer) histogram_tool_dialog);
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g_free (hist);
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}
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void
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histogram_tool_initialize (GDisplay *gdisp)
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{
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PixelRegion PR;
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if (drawable_indexed (gimage_active_drawable (gdisp->gimage)))
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{
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g_message (_("Histogram does not operate on indexed drawables."));
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return;
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}
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/* The histogram_tool dialog */
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if (!histogram_tool_dialog)
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histogram_tool_dialog = histogram_tool_new_dialog ();
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else if (!GTK_WIDGET_VISIBLE (histogram_tool_dialog->shell))
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gtk_widget_show (histogram_tool_dialog->shell);
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histogram_tool_dialog->drawable = gimage_active_drawable (gdisp->gimage);
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histogram_tool_dialog->color = drawable_color (histogram_tool_dialog->drawable);
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/* hide or show the channel menu based on image type */
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if (histogram_tool_dialog->color)
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gtk_widget_show (histogram_tool_dialog->channel_menu);
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else
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gtk_widget_hide (histogram_tool_dialog->channel_menu);
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/* calculate the histogram */
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pixel_region_init (&PR, drawable_data (histogram_tool_dialog->drawable), 0, 0,
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drawable_width (histogram_tool_dialog->drawable),
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drawable_height (histogram_tool_dialog->drawable),
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FALSE);
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gimp_histogram_calculate (histogram_tool_dialog->hist, &PR, NULL);
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histogram_widget_update (histogram_tool_dialog->histogram,
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histogram_tool_dialog->hist);
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histogram_widget_range (histogram_tool_dialog->histogram, 0, 255);
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}
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/***************************/
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/* Histogram Tool dialog */
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/***************************/
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static HistogramToolDialog *
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histogram_tool_new_dialog ()
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{
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HistogramToolDialog *htd;
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GtkWidget *vbox;
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GtkWidget *vbox2;
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GtkWidget *frame;
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GtkWidget *table;
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GtkWidget *label;
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GtkWidget *option_menu;
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GtkWidget *menu;
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gint i;
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gint x, y;
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static gchar * histogram_info_names[] =
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{
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N_("Mean:"),
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N_("Std Dev:"),
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N_("Median:"),
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N_("Pixels:"),
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N_("Intensity:"),
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N_("Count:"),
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N_("Percentile:")
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};
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static MenuItem color_option_items[] =
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{
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{ N_("Value"), 0, 0, histogram_tool_value_callback, NULL, NULL, NULL },
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{ N_("Red"), 0, 0, histogram_tool_red_callback, NULL, NULL, NULL },
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{ N_("Green"), 0, 0, histogram_tool_green_callback, NULL, NULL, NULL },
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{ N_("Blue"), 0, 0, histogram_tool_blue_callback, NULL, NULL, NULL },
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{ NULL, 0, 0, NULL, NULL, NULL, NULL }
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};
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htd = g_new (HistogramToolDialog, 1);
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htd->channel = HISTOGRAM_VALUE;
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for (i = 0; i < 4; i++)
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color_option_items [i].user_data = (gpointer) htd;
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htd->hist = gimp_histogram_new ();
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/* The shell and main vbox */
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htd->shell = gimp_dialog_new (_("Histogram"), "histogram",
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tools_help_func, NULL,
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GTK_WIN_POS_NONE,
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FALSE, TRUE, FALSE,
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_("Close"), histogram_tool_close_callback,
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htd, NULL, TRUE, TRUE,
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NULL);
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vbox = gtk_vbox_new (FALSE, 2);
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gtk_container_set_border_width (GTK_CONTAINER (vbox), 2);
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gtk_container_add (GTK_CONTAINER (GTK_DIALOG (htd->shell)->vbox), vbox);
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/* The vbox for the menu and histogram */
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vbox2 = gtk_vbox_new (FALSE, 2);
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gtk_box_pack_start (GTK_BOX (vbox), vbox2, FALSE, FALSE, 0);
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/* The option menu for selecting channels */
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htd->channel_menu = gtk_hbox_new (FALSE, 6);
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gtk_box_pack_start (GTK_BOX (vbox2), htd->channel_menu, FALSE, FALSE, 0);
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label = gtk_label_new (_("Information on Channel:"));
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gtk_box_pack_start (GTK_BOX (htd->channel_menu), label, FALSE, FALSE, 0);
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menu = build_menu (color_option_items, NULL);
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option_menu = gtk_option_menu_new ();
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gtk_box_pack_start (GTK_BOX (htd->channel_menu), option_menu, FALSE, FALSE, 0);
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gtk_widget_show (label);
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gtk_widget_show (option_menu);
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gtk_widget_show (htd->channel_menu);
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gtk_option_menu_set_menu (GTK_OPTION_MENU (option_menu), menu);
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/* The histogram tool histogram */
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frame = gtk_frame_new (NULL);
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gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_IN);
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gtk_box_pack_start (GTK_BOX (vbox2), frame, FALSE, FALSE, 0);
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htd->histogram = histogram_widget_new (HISTOGRAM_WIDTH, HISTOGRAM_HEIGHT);
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gtk_signal_connect (GTK_OBJECT (htd->histogram), "rangechanged",
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(GtkSignalFunc) histogram_tool_histogram_range,
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(void*)htd);
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gtk_container_add (GTK_CONTAINER (frame), GTK_WIDGET(htd->histogram));
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gtk_widget_show (GTK_WIDGET(htd->histogram));
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gtk_widget_show (frame);
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gtk_widget_show (vbox2);
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/* The table containing histogram information */
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table = gtk_table_new (4, 4, TRUE);
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gtk_table_set_col_spacings (GTK_TABLE (table), 6);
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gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
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/* the labels for histogram information */
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for (i = 0; i < 7; i++)
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{
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y = (i % 4);
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x = (i / 4) * 2;
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label = gtk_label_new (gettext(histogram_info_names[i]));
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gtk_misc_set_alignment (GTK_MISC (label), 1.0, 0.5);
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gtk_table_attach (GTK_TABLE (table), label, x, x + 1, y, y + 1,
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GTK_FILL, GTK_FILL, 2, 2);
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gtk_widget_show (label);
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htd->info_labels[i] = gtk_label_new ("0");
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gtk_misc_set_alignment (GTK_MISC (htd->info_labels[i]), 0.0, 0.5);
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gtk_table_attach (GTK_TABLE (table), htd->info_labels[i],
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x + 1, x + 2, y, y + 1,
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GTK_FILL, GTK_FILL, 2, 2);
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gtk_widget_show (htd->info_labels[i]);
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}
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gtk_widget_show (table);
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gtk_widget_show (vbox);
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gtk_widget_show (htd->shell);
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return htd;
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}
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static void
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histogram_tool_close_callback (GtkWidget *widget,
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gpointer client_data)
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{
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HistogramToolDialog *htd;
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htd = (HistogramToolDialog *) client_data;
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if (GTK_WIDGET_VISIBLE (htd->shell))
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gtk_widget_hide (htd->shell);
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}
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static void
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histogram_tool_value_callback (GtkWidget *widget,
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gpointer client_data)
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{
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HistogramToolDialog *htd;
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htd = (HistogramToolDialog *) client_data;
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if (htd->channel != HISTOGRAM_VALUE)
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{
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htd->channel = HISTOGRAM_VALUE;
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histogram_widget_channel (htd->histogram, htd->channel);
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}
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}
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static void
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histogram_tool_red_callback (GtkWidget *widget,
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gpointer client_data)
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{
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HistogramToolDialog *htd;
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htd = (HistogramToolDialog *) client_data;
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if (htd->channel != HISTOGRAM_RED)
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{
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htd->channel = HISTOGRAM_RED;
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histogram_widget_channel (htd->histogram, htd->channel);
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}
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}
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static void
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histogram_tool_green_callback (GtkWidget *widget,
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gpointer client_data)
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{
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HistogramToolDialog *htd;
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htd = (HistogramToolDialog *) client_data;
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if (htd->channel != HISTOGRAM_GREEN)
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{
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htd->channel = HISTOGRAM_GREEN;
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histogram_widget_channel (htd->histogram, htd->channel);
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}
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}
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static void
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histogram_tool_blue_callback (GtkWidget *widget,
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gpointer client_data)
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{
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HistogramToolDialog *htd;
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htd = (HistogramToolDialog *) client_data;
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if (htd->channel != HISTOGRAM_BLUE)
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{
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htd->channel = HISTOGRAM_BLUE;
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histogram_widget_channel (htd->histogram, htd->channel);
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}
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}
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