mirror of
https://gitlab.gnome.org/GNOME/gimp
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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).
527 lines
15 KiB
C
527 lines
15 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 <stdlib.h>
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#include <string.h>
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#include <math.h>
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#include "appenv.h"
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#include "brightness_contrast.h"
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#include "drawable.h"
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#include "gimage_mask.h"
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#include "gimpui.h"
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#include "gdisplay.h"
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#include "image_map.h"
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#include "interface.h"
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#include "gimplut.h"
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#include "lut_funcs.h"
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#include "libgimp/gimpintl.h"
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#define TEXT_WIDTH 45
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#define TEXT_HEIGHT 25
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#define SLIDER_WIDTH 200
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#define SLIDER_HEIGHT 35
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#define BRIGHTNESS_SLIDER 0x1
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#define CONTRAST_SLIDER 0x2
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#define BRIGHTNESS_TEXT 0x4
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#define CONTRAST_TEXT 0x8
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#define ALL 0xF
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/* the brightness-contrast structures */
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typedef struct _BrightnessContrast BrightnessContrast;
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struct _BrightnessContrast
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{
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gint x, y; /* coords for last mouse click */
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};
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typedef struct _BrightnessContrastDialog BrightnessContrastDialog;
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struct _BrightnessContrastDialog
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{
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GtkWidget *shell;
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GtkWidget *gimage_name;
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GtkWidget *brightness_text;
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GtkWidget *contrast_text;
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GtkAdjustment *brightness_data;
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GtkAdjustment *contrast_data;
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GimpDrawable *drawable;
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ImageMap image_map;
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double brightness;
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double contrast;
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gint preview;
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GimpLut *lut;
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};
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/* the brightness-contrast tool options */
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static ToolOptions *brightness_contrast_options = NULL;
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/* the brightness-contrast dialog */
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static BrightnessContrastDialog *brightness_contrast_dialog = NULL;
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/* brightness contrast action functions */
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static void brightness_contrast_control (Tool *, ToolAction, gpointer);
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static BrightnessContrastDialog * brightness_contrast_new_dialog (void);
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static void brightness_contrast_update (BrightnessContrastDialog *, int);
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static void brightness_contrast_preview (BrightnessContrastDialog *);
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static void brightness_contrast_ok_callback (GtkWidget *, gpointer);
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static void brightness_contrast_cancel_callback (GtkWidget *, gpointer);
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static void brightness_contrast_preview_update (GtkWidget *, gpointer);
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static void brightness_contrast_brightness_scale_update (GtkAdjustment *, gpointer);
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static void brightness_contrast_contrast_scale_update (GtkAdjustment *, gpointer);
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static void brightness_contrast_brightness_text_update (GtkWidget *, gpointer);
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static void brightness_contrast_contrast_text_update (GtkWidget *, gpointer);
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/* brightness-contrast select action functions */
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static void
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brightness_contrast_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 (brightness_contrast_dialog)
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brightness_contrast_cancel_callback (NULL, (gpointer) brightness_contrast_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_brightness_contrast ()
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{
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Tool * tool;
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BrightnessContrast * private;
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/* The tool options */
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if (!brightness_contrast_options)
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{
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brightness_contrast_options =
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tool_options_new (_("Brightness-Contrast Options"));
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tools_register (BRIGHTNESS_CONTRAST, brightness_contrast_options);
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}
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tool = tools_new_tool (BRIGHTNESS_CONTRAST);
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private = g_new (BrightnessContrast, 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 = brightness_contrast_control;
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return tool;
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}
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void
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tools_free_brightness_contrast (Tool *tool)
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{
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BrightnessContrast * bc;
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bc = (BrightnessContrast *) tool->private;
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/* Close the color select dialog */
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if (brightness_contrast_dialog)
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brightness_contrast_cancel_callback (NULL, (gpointer) brightness_contrast_dialog);
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g_free (bc);
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}
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void
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brightness_contrast_initialize (GDisplay *gdisp)
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{
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if (drawable_indexed (gimage_active_drawable (gdisp->gimage)))
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{
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g_message (_("Brightness-Contrast does not operate on indexed drawables."));
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return;
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}
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/* The brightness-contrast dialog */
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if (!brightness_contrast_dialog)
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brightness_contrast_dialog = brightness_contrast_new_dialog ();
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else
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if (!GTK_WIDGET_VISIBLE (brightness_contrast_dialog->shell))
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gtk_widget_show (brightness_contrast_dialog->shell);
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/* Initialize dialog fields */
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brightness_contrast_dialog->image_map = NULL;
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brightness_contrast_dialog->brightness = 0.0;
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brightness_contrast_dialog->contrast = 0.0;
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brightness_contrast_dialog->drawable = gimage_active_drawable (gdisp->gimage);
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brightness_contrast_dialog->image_map =
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image_map_create (gdisp, brightness_contrast_dialog->drawable);
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brightness_contrast_update (brightness_contrast_dialog, ALL);
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}
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/********************************/
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/* Brightness Contrast dialog */
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/********************************/
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static BrightnessContrastDialog *
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brightness_contrast_new_dialog ()
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{
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BrightnessContrastDialog *bcd;
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GtkWidget *vbox;
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GtkWidget *hbox;
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GtkWidget *table;
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GtkWidget *label;
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GtkWidget *slider;
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GtkWidget *toggle;
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GtkObject *data;
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bcd = g_new (BrightnessContrastDialog, 1);
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bcd->preview = TRUE;
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bcd->lut = gimp_lut_new ();
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/* The shell and main vbox */
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bcd->shell =
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gimp_dialog_new (_("Brightness-Contrast"), "brightness_contrast",
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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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_("OK"), brightness_contrast_ok_callback,
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bcd, NULL, TRUE, FALSE,
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_("Cancel"), brightness_contrast_cancel_callback,
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bcd, NULL, FALSE, 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 (bcd->shell)->vbox), vbox);
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/* The table containing sliders */
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table = gtk_table_new (2, 3, FALSE);
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gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
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/* Create the brightness scale widget */
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label = gtk_label_new (_("Brightness"));
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gtk_misc_set_alignment (GTK_MISC (label), 1.0, 1.0);
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gtk_table_attach (GTK_TABLE (table), label, 0, 1, 0, 1,
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GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 2, 2);
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data = gtk_adjustment_new (0, -127, 127.0, 1.0, 1.0, 0.0);
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bcd->brightness_data = GTK_ADJUSTMENT (data);
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slider = gtk_hscale_new (GTK_ADJUSTMENT (data));
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gtk_widget_set_usize (slider, SLIDER_WIDTH, SLIDER_HEIGHT);
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gtk_scale_set_digits (GTK_SCALE (slider), 0);
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gtk_scale_set_value_pos (GTK_SCALE (slider), GTK_POS_TOP);
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gtk_range_set_update_policy (GTK_RANGE (slider), GTK_UPDATE_DELAYED);
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gtk_table_attach (GTK_TABLE (table), slider, 1, 2, 0, 1,
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GTK_EXPAND | GTK_SHRINK | GTK_FILL,
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GTK_EXPAND | GTK_SHRINK | GTK_FILL,
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2, 2);
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gtk_signal_connect (GTK_OBJECT (data), "value_changed",
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(GtkSignalFunc) brightness_contrast_brightness_scale_update,
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bcd);
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bcd->brightness_text = gtk_entry_new ();
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gtk_widget_set_usize (bcd->brightness_text, TEXT_WIDTH, TEXT_HEIGHT);
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gtk_table_attach (GTK_TABLE (table), bcd->brightness_text, 2, 3, 0, 1,
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GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 2, 2);
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gtk_signal_connect (GTK_OBJECT (bcd->brightness_text), "changed",
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(GtkSignalFunc) brightness_contrast_brightness_text_update,
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bcd);
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gtk_widget_show (label);
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gtk_widget_show (bcd->brightness_text);
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gtk_widget_show (slider);
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/* Create the contrast scale widget */
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label = gtk_label_new (_("Contrast"));
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gtk_misc_set_alignment (GTK_MISC (label), 1.0, 1.0);
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gtk_table_attach (GTK_TABLE (table), label, 0, 1, 1, 2,
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GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 2, 2);
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data = gtk_adjustment_new (0, -127.0, 127.0, 1.0, 1.0, 0.0);
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bcd->contrast_data = GTK_ADJUSTMENT (data);
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slider = gtk_hscale_new (GTK_ADJUSTMENT (data));
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gtk_widget_set_usize (slider, SLIDER_WIDTH, SLIDER_HEIGHT);
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gtk_scale_set_digits (GTK_SCALE (slider), 0);
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gtk_scale_set_value_pos (GTK_SCALE (slider), GTK_POS_TOP);
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gtk_range_set_update_policy (GTK_RANGE (slider), GTK_UPDATE_DELAYED);
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gtk_table_attach (GTK_TABLE (table), slider, 1, 2, 1, 2,
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GTK_EXPAND | GTK_SHRINK | GTK_FILL,
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GTK_EXPAND | GTK_SHRINK | GTK_FILL,
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2, 2);
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gtk_signal_connect (GTK_OBJECT (data), "value_changed",
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(GtkSignalFunc) brightness_contrast_contrast_scale_update,
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bcd);
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bcd->contrast_text = gtk_entry_new ();
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gtk_widget_set_usize (bcd->contrast_text, TEXT_WIDTH, TEXT_HEIGHT);
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gtk_table_attach (GTK_TABLE (table), bcd->contrast_text, 2, 3, 1, 2,
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GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 2, 2);
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gtk_signal_connect (GTK_OBJECT (bcd->contrast_text), "changed",
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(GtkSignalFunc) brightness_contrast_contrast_text_update,
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bcd);
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gtk_widget_show (label);
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gtk_widget_show (bcd->contrast_text);
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gtk_widget_show (slider);
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/* Horizontal box for preview and preserve luminosity toggle buttons */
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hbox = gtk_hbox_new (TRUE, 2);
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gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
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/* The preview toggle */
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toggle = gtk_check_button_new_with_label (_("Preview"));
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gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), bcd->preview);
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gtk_box_pack_start (GTK_BOX (hbox), toggle, TRUE, FALSE, 0);
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gtk_signal_connect (GTK_OBJECT (toggle), "toggled",
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(GtkSignalFunc) brightness_contrast_preview_update,
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bcd);
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gtk_widget_show (label);
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gtk_widget_show (toggle);
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gtk_widget_show (hbox);
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gtk_widget_show (table);
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gtk_widget_show (vbox);
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gtk_widget_show (bcd->shell);
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return bcd;
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}
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static void
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brightness_contrast_update (BrightnessContrastDialog *bcd,
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gint update)
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{
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char text[12];
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if (update & BRIGHTNESS_SLIDER)
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{
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bcd->brightness_data->value = bcd->brightness;
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gtk_signal_emit_by_name (GTK_OBJECT (bcd->brightness_data), "value_changed");
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}
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if (update & CONTRAST_SLIDER)
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{
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bcd->contrast_data->value = bcd->contrast;
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gtk_signal_emit_by_name (GTK_OBJECT (bcd->contrast_data), "value_changed");
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}
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if (update & BRIGHTNESS_TEXT)
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{
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g_snprintf (text, sizeof (text), "%0.0f", bcd->brightness);
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gtk_entry_set_text (GTK_ENTRY (bcd->brightness_text), text);
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}
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if (update & CONTRAST_TEXT)
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{
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g_snprintf (text, sizeof (text), "%0.0f", bcd->contrast);
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gtk_entry_set_text (GTK_ENTRY (bcd->contrast_text), text);
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}
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}
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static void
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brightness_contrast_preview (BrightnessContrastDialog *bcd)
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{
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if (!bcd->image_map)
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{
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g_message ("brightness_contrast_preview(): No image map");
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return;
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}
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active_tool->preserve = TRUE;
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brightness_contrast_lut_setup (bcd->lut, bcd->brightness / 255.0,
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bcd->contrast / 127.0,
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gimp_drawable_bytes (bcd->drawable));
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image_map_apply (bcd->image_map, (ImageMapApplyFunc) gimp_lut_process_2,
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(void *) bcd->lut);
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active_tool->preserve = FALSE;
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}
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static void
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brightness_contrast_ok_callback (GtkWidget *widget,
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gpointer client_data)
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{
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BrightnessContrastDialog *bcd;
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bcd = (BrightnessContrastDialog *) client_data;
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if (GTK_WIDGET_VISIBLE (bcd->shell))
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gtk_widget_hide (bcd->shell);
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active_tool->preserve = TRUE;
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if (!bcd->preview)
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{
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brightness_contrast_lut_setup (bcd->lut, bcd->brightness / 255.0,
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bcd->contrast / 127.0,
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gimp_drawable_bytes (bcd->drawable));
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image_map_apply (bcd->image_map, (ImageMapApplyFunc) gimp_lut_process_2,
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(void *) bcd->lut);
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}
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if (bcd->image_map)
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image_map_commit (bcd->image_map);
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active_tool->preserve = FALSE;
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bcd->image_map = NULL;
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active_tool->gdisp_ptr = NULL;
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active_tool->drawable = NULL;
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}
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static void
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brightness_contrast_cancel_callback (GtkWidget *widget,
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gpointer data)
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{
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BrightnessContrastDialog *bcd;
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bcd = (BrightnessContrastDialog *) data;
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if (GTK_WIDGET_VISIBLE (bcd->shell))
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gtk_widget_hide (bcd->shell);
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if (bcd->image_map)
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{
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active_tool->preserve = TRUE;
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image_map_abort (bcd->image_map);
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active_tool->preserve = FALSE;
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bcd->image_map = NULL;
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gdisplays_flush ();
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}
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active_tool->gdisp_ptr = NULL;
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active_tool->drawable = NULL;
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}
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static void
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brightness_contrast_preview_update (GtkWidget *widget,
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gpointer data)
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{
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BrightnessContrastDialog *bcd;
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bcd = (BrightnessContrastDialog *) data;
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if (GTK_TOGGLE_BUTTON (widget)->active)
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{
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bcd->preview = TRUE;
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brightness_contrast_preview (bcd);
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}
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else
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bcd->preview = FALSE;
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}
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static void
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brightness_contrast_brightness_scale_update (GtkAdjustment *adjustment,
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gpointer data)
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{
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BrightnessContrastDialog *bcd;
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bcd = (BrightnessContrastDialog *) data;
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if (bcd->brightness != adjustment->value)
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{
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bcd->brightness = adjustment->value;
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brightness_contrast_update (bcd, BRIGHTNESS_TEXT);
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if (bcd->preview)
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brightness_contrast_preview (bcd);
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}
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}
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static void
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brightness_contrast_contrast_scale_update (GtkAdjustment *adjustment,
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gpointer data)
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{
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BrightnessContrastDialog *bcd;
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bcd = (BrightnessContrastDialog *) data;
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if (bcd->contrast != adjustment->value)
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{
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bcd->contrast = adjustment->value;
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brightness_contrast_update (bcd, CONTRAST_TEXT);
|
|
|
|
if (bcd->preview)
|
|
brightness_contrast_preview (bcd);
|
|
}
|
|
}
|
|
|
|
static void
|
|
brightness_contrast_brightness_text_update (GtkWidget *widget,
|
|
gpointer data)
|
|
{
|
|
BrightnessContrastDialog *bcd;
|
|
gchar *str;
|
|
gint value;
|
|
|
|
str = gtk_entry_get_text (GTK_ENTRY (widget));
|
|
bcd = (BrightnessContrastDialog *) data;
|
|
value = BOUNDS (((int) atof (str)), -127, 127);
|
|
|
|
if ((int) bcd->brightness != value)
|
|
{
|
|
bcd->brightness = value;
|
|
brightness_contrast_update (bcd, BRIGHTNESS_SLIDER);
|
|
|
|
if (bcd->preview)
|
|
brightness_contrast_preview (bcd);
|
|
}
|
|
}
|
|
|
|
static void
|
|
brightness_contrast_contrast_text_update (GtkWidget *widget,
|
|
gpointer data)
|
|
{
|
|
BrightnessContrastDialog *bcd;
|
|
gchar *str;
|
|
gint value;
|
|
|
|
str = gtk_entry_get_text (GTK_ENTRY (widget));
|
|
bcd = (BrightnessContrastDialog *) data;
|
|
value = BOUNDS (((int) atof (str)), -127, 127);
|
|
|
|
if ((int) bcd->contrast != value)
|
|
{
|
|
bcd->contrast = value;
|
|
brightness_contrast_update (bcd, CONTRAST_SLIDER);
|
|
|
|
if (bcd->preview)
|
|
brightness_contrast_preview (bcd);
|
|
}
|
|
}
|