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| -rw-r--r-- | libgimpwidgets/gimpwidgets.c | 997 |
1 files changed, 997 insertions, 0 deletions
diff --git a/libgimpwidgets/gimpwidgets.c b/libgimpwidgets/gimpwidgets.c new file mode 100644 index 0000000..2958de9 --- /dev/null +++ b/libgimpwidgets/gimpwidgets.c @@ -0,0 +1,997 @@ +/* LIBGIMP - The GIMP Library + * Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball + * + * gimpwidgets.c + * Copyright (C) 2000 Michael Natterer <mitch@gimp.org> + * + * 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 + * Library 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/>. + */ + +#include "config.h" + +#include <gegl.h> +#include <gtk/gtk.h> + +#include "libgimpcolor/gimpcolor.h" +#include "libgimpmath/gimpmath.h" +#include "libgimpbase/gimpbase.h" + +#include "gimpwidgets.h" + +#include "libgimp/libgimp-intl.h" + + +/* hack: declare prototype here instead of #undef GIMP_DISABLE_DEPRECATED */ +void gimp_toggle_button_sensitive_update (GtkToggleButton *toggle_button); + + +/** + * SECTION: gimpwidgets + * @title: GimpWidgets + * @short_description: A collection of convenient widget constructors, + * standard callbacks and helper functions. + * + * A collection of convenient widget constructors, standard callbacks + * and helper functions. + **/ + + +/** + * gimp_radio_group_new: + * @in_frame: %TRUE if you want a #GtkFrame around the radio button group. + * @frame_title: The title of the Frame or %NULL if you don't want a title. + * @...: A %NULL-terminated @va_list describing the radio buttons. + * + * Convenience function to create a group of radio buttons embedded into + * a #GtkFrame or #GtkVBox. + * + * Returns: A #GtkFrame or #GtkVBox (depending on @in_frame). + **/ +GtkWidget * +gimp_radio_group_new (gboolean in_frame, + const gchar *frame_title, + + /* specify radio buttons as va_list: + * const gchar *label, + * GCallback callback, + * gpointer callback_data, + * gpointer item_data, + * GtkWidget **widget_ptr, + * gboolean active, + */ + + ...) +{ + GtkWidget *vbox; + GtkWidget *button; + GSList *group; + + /* radio button variables */ + const gchar *label; + GCallback callback; + gpointer callback_data; + gpointer item_data; + GtkWidget **widget_ptr; + gboolean active; + + va_list args; + + vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 2); + + group = NULL; + + /* create the radio buttons */ + va_start (args, frame_title); + label = va_arg (args, const gchar *); + while (label) + { + callback = va_arg (args, GCallback); + callback_data = va_arg (args, gpointer); + item_data = va_arg (args, gpointer); + widget_ptr = va_arg (args, GtkWidget **); + active = va_arg (args, gboolean); + + if (label != (gpointer) 1) + button = gtk_radio_button_new_with_mnemonic (group, label); + else + button = gtk_radio_button_new (group); + + group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (button)); + gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0); + + if (item_data) + { + g_object_set_data (G_OBJECT (button), "gimp-item-data", item_data); + + /* backward compatibility */ + g_object_set_data (G_OBJECT (button), "user_data", item_data); + } + + if (widget_ptr) + *widget_ptr = button; + + if (active) + gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button), TRUE); + + g_signal_connect (button, "toggled", + callback, + callback_data); + + gtk_widget_show (button); + + label = va_arg (args, const gchar *); + } + va_end (args); + + if (in_frame) + { + GtkWidget *frame; + + frame = gimp_frame_new (frame_title); + gtk_container_add (GTK_CONTAINER (frame), vbox); + gtk_widget_show (vbox); + + return frame; + } + + return vbox; +} + +/** + * gimp_radio_group_new2: + * @in_frame: %TRUE if you want a #GtkFrame around the + * radio button group. + * @frame_title: The title of the Frame or %NULL if you don't want + * a title. + * @radio_button_callback: The callback each button's "toggled" signal will + * be connected with. + * @radio_button_callback_data: + * The data which will be passed to g_signal_connect(). + * @initial: The @item_data of the initially pressed radio button. + * @...: A %NULL-terminated @va_list describing + * the radio buttons. + * + * Convenience function to create a group of radio buttons embedded into + * a #GtkFrame or #GtkVBox. + * + * Returns: A #GtkFrame or #GtkVBox (depending on @in_frame). + **/ +GtkWidget * +gimp_radio_group_new2 (gboolean in_frame, + const gchar *frame_title, + GCallback radio_button_callback, + gpointer callback_data, + gpointer initial, /* item_data */ + + /* specify radio buttons as va_list: + * const gchar *label, + * gpointer item_data, + * GtkWidget **widget_ptr, + */ + + ...) +{ + GtkWidget *vbox; + GtkWidget *button; + GSList *group; + + /* radio button variables */ + const gchar *label; + gpointer item_data; + GtkWidget **widget_ptr; + + va_list args; + + vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 2); + + group = NULL; + + /* create the radio buttons */ + va_start (args, initial); + label = va_arg (args, const gchar *); + + while (label) + { + item_data = va_arg (args, gpointer); + widget_ptr = va_arg (args, GtkWidget **); + + if (label != (gpointer) 1) + button = gtk_radio_button_new_with_mnemonic (group, label); + else + button = gtk_radio_button_new (group); + + group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (button)); + gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0); + + if (item_data) + { + g_object_set_data (G_OBJECT (button), "gimp-item-data", item_data); + + /* backward compatibility */ + g_object_set_data (G_OBJECT (button), "user_data", item_data); + } + + if (widget_ptr) + *widget_ptr = button; + + if (initial == item_data) + gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button), TRUE); + + g_signal_connect (button, "toggled", + radio_button_callback, + callback_data); + + gtk_widget_show (button); + + label = va_arg (args, const gchar *); + } + va_end (args); + + if (in_frame) + { + GtkWidget *frame; + + frame = gimp_frame_new (frame_title); + gtk_container_add (GTK_CONTAINER (frame), vbox); + gtk_widget_show (vbox); + + return frame; + } + + return vbox; +} + +/** + * gimp_int_radio_group_new: + * @in_frame: %TRUE if you want a #GtkFrame around the + * radio button group. + * @frame_title: The title of the Frame or %NULL if you don't want + * a title. + * @radio_button_callback: The callback each button's "toggled" signal will + * be connected with. + * @radio_button_callback_data: + * The data which will be passed to g_signal_connect(). + * @initial: The @item_data of the initially pressed radio button. + * @...: A %NULL-terminated @va_list describing + * the radio buttons. + * + * Convenience function to create a group of radio buttons embedded into + * a #GtkFrame or #GtkVBox. This function does the same thing as + * gimp_radio_group_new2(), but it takes integers as @item_data instead of + * pointers, since that is a very common case (mapping an enum to a radio + * group). + * + * Returns: A #GtkFrame or #GtkVBox (depending on @in_frame). + **/ +GtkWidget * +gimp_int_radio_group_new (gboolean in_frame, + const gchar *frame_title, + GCallback radio_button_callback, + gpointer callback_data, + gint initial, /* item_data */ + + /* specify radio buttons as va_list: + * const gchar *label, + * gint item_data, + * GtkWidget **widget_ptr, + */ + + ...) +{ + GtkWidget *vbox; + GtkWidget *button; + GSList *group; + + /* radio button variables */ + const gchar *label; + gint item_data; + gpointer item_ptr; + GtkWidget **widget_ptr; + + va_list args; + + vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 2); + + group = NULL; + + /* create the radio buttons */ + va_start (args, initial); + label = va_arg (args, const gchar *); + + while (label) + { + item_data = va_arg (args, gint); + widget_ptr = va_arg (args, GtkWidget **); + + item_ptr = GINT_TO_POINTER (item_data); + + if (label != GINT_TO_POINTER (1)) + button = gtk_radio_button_new_with_mnemonic (group, label); + else + button = gtk_radio_button_new (group); + + group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (button)); + gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0); + + if (item_data) + { + g_object_set_data (G_OBJECT (button), "gimp-item-data", item_ptr); + + /* backward compatibility */ + g_object_set_data (G_OBJECT (button), "user_data", item_ptr); + } + + if (widget_ptr) + *widget_ptr = button; + + if (initial == item_data) + gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button), TRUE); + + g_signal_connect (button, "toggled", + radio_button_callback, + callback_data); + + gtk_widget_show (button); + + label = va_arg (args, const gchar *); + } + va_end (args); + + if (in_frame) + { + GtkWidget *frame; + + frame = gimp_frame_new (frame_title); + gtk_container_add (GTK_CONTAINER (frame), vbox); + gtk_widget_show (vbox); + + return frame; + } + + return vbox; +} + +/** + * gimp_radio_group_set_active: + * @radio_button: Pointer to a #GtkRadioButton. + * @item_data: The @item_data of the radio button you want to select. + * + * Calls gtk_toggle_button_set_active() with the radio button that was + * created with a matching @item_data. + **/ +void +gimp_radio_group_set_active (GtkRadioButton *radio_button, + gpointer item_data) +{ + GtkWidget *button; + GSList *group; + + g_return_if_fail (GTK_IS_RADIO_BUTTON (radio_button)); + + for (group = gtk_radio_button_get_group (radio_button); + group; + group = g_slist_next (group)) + { + button = GTK_WIDGET (group->data); + + if (g_object_get_data (G_OBJECT (button), "gimp-item-data") == item_data) + { + gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button), TRUE); + return; + } + } +} + +/** + * gimp_int_radio_group_set_active: + * @radio_button: Pointer to a #GtkRadioButton. + * @item_data: The @item_data of the radio button you want to select. + * + * Calls gtk_toggle_button_set_active() with the radio button that was created + * with a matching @item_data. This function does the same thing as + * gimp_radio_group_set_active(), but takes integers as @item_data instead + * of pointers. + **/ +void +gimp_int_radio_group_set_active (GtkRadioButton *radio_button, + gint item_data) +{ + g_return_if_fail (GTK_IS_RADIO_BUTTON (radio_button)); + + gimp_radio_group_set_active (radio_button, GINT_TO_POINTER (item_data)); +} + +/** + * gimp_spin_button_new: + * @adjustment: Returns the spinbutton's #GtkAdjustment. + * @value: The initial value of the spinbutton. + * @lower: The lower boundary. + * @upper: The upper boundary. + * @step_increment: The spinbutton's step increment. + * @page_increment: The spinbutton's page increment (mouse button 2). + * @page_size: Ignored, spin buttons must always have a zero page size. + * @climb_rate: The spinbutton's climb rate. + * @digits: The spinbutton's number of decimal digits. + * + * This function is a shortcut for gtk_adjustment_new() and a + * subsequent gtk_spin_button_new(). It also calls + * gtk_spin_button_set_numeric() so that non-numeric text cannot be + * entered. + * + * Deprecated: 2.10: Use gtk_spin_button_new() instead. + * + * Returns: A #GtkSpinButton and its #GtkAdjustment. + **/ +GtkWidget * +gimp_spin_button_new (GtkObject **adjustment, /* return value */ + gdouble value, + gdouble lower, + gdouble upper, + gdouble step_increment, + gdouble page_increment, + gdouble page_size, + gdouble climb_rate, + guint digits) +{ + GtkWidget *spinbutton; + + *adjustment = gtk_adjustment_new (value, lower, upper, + step_increment, page_increment, 0); + + spinbutton = gimp_spin_button_new (GTK_ADJUSTMENT (*adjustment), + climb_rate, digits); + + gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE); + + return spinbutton; +} + +static void +gimp_random_seed_update (GtkWidget *widget, + gpointer data) +{ + GtkWidget *spinbutton = data; + + /* Generate a new seed if the "New Seed" button was clicked or + * of the "Randomize" toggle is activated + */ + if (! GTK_IS_TOGGLE_BUTTON (widget) || + gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (widget))) + { + gtk_spin_button_set_value (GTK_SPIN_BUTTON (spinbutton), + (guint) g_random_int ()); + } +} + +/** + * gimp_random_seed_new: + * @seed: A pointer to the variable which stores the random seed. + * @random_seed: A pointer to a boolean indicating whether seed should be + * initialised randomly or not. + * + * Creates a widget that allows the user to control how the random number + * generator is initialized. + * + * Returns: A #GtkHBox containing a #GtkSpinButton for the seed and + * a #GtkButton for setting a random seed. + **/ +GtkWidget * +gimp_random_seed_new (guint *seed, + gboolean *random_seed) +{ + GtkWidget *hbox; + GtkWidget *toggle; + GtkWidget *spinbutton; + GtkAdjustment *adj; + GtkWidget *button; + + g_return_val_if_fail (seed != NULL, NULL); + g_return_val_if_fail (random_seed != NULL, NULL); + + hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4); + + /* If we're being asked to generate a random seed, generate one. */ + if (*random_seed) + *seed = g_random_int (); + + adj = (GtkAdjustment *) + gtk_adjustment_new (*seed, 0, (guint32) -1, 1, 10, 0); + spinbutton = gimp_spin_button_new (adj, 1.0, 0); + gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE); + gtk_box_pack_start (GTK_BOX (hbox), spinbutton, FALSE, FALSE, 0); + gtk_widget_show (spinbutton); + + g_signal_connect (adj, "value-changed", + G_CALLBACK (gimp_uint_adjustment_update), + seed); + + gimp_help_set_help_data (spinbutton, + _("Use this value for random number generator " + "seed - this allows you to repeat a " + "given \"random\" operation"), NULL); + + button = gtk_button_new_with_mnemonic (_("_New Seed")); + gtk_misc_set_padding (GTK_MISC (gtk_bin_get_child (GTK_BIN (button))), 2, 0); + gtk_box_pack_start (GTK_BOX (hbox), button, FALSE, FALSE, 0); + gtk_widget_show (button); + + /* Send spinbutton as data so that we can change the value in + * gimp_random_seed_update() + */ + g_signal_connect (button, "clicked", + G_CALLBACK (gimp_random_seed_update), + spinbutton); + + gimp_help_set_help_data (button, + _("Seed random number generator with a generated " + "random number"), + NULL); + + toggle = gtk_check_button_new_with_mnemonic (_("_Randomize")); + gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), *random_seed); + gtk_box_pack_start (GTK_BOX (hbox), toggle, FALSE, FALSE, 0); + gtk_widget_show (toggle); + + g_signal_connect (toggle, "toggled", + G_CALLBACK (gimp_toggle_button_update), + random_seed); + + /* Need to create a new seed when the "Randomize" toggle is activated */ + g_signal_connect (toggle, "toggled", + G_CALLBACK (gimp_random_seed_update), + spinbutton); + + g_object_set_data (G_OBJECT (hbox), "spinbutton", spinbutton); + g_object_set_data (G_OBJECT (hbox), "button", button); + g_object_set_data (G_OBJECT (hbox), "toggle", toggle); + + g_object_bind_property (toggle, "active", + spinbutton, "sensitive", + G_BINDING_SYNC_CREATE | G_BINDING_INVERT_BOOLEAN); + g_object_bind_property (toggle, "active", + button, "sensitive", + G_BINDING_SYNC_CREATE | G_BINDING_INVERT_BOOLEAN); + + return hbox; +} + +typedef struct +{ + GimpChainButton *chainbutton; + gboolean chain_constrains_ratio; + gdouble orig_x; + gdouble orig_y; + gdouble last_x; + gdouble last_y; +} GimpCoordinatesData; + +static void +gimp_coordinates_callback (GtkWidget *widget, + GimpCoordinatesData *data) +{ + gdouble new_x; + gdouble new_y; + + new_x = gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (widget), 0); + new_y = gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (widget), 1); + + if (gimp_chain_button_get_active (data->chainbutton)) + { + if (data->chain_constrains_ratio) + { + if ((data->orig_x != 0) && (data->orig_y != 0)) + { + g_signal_handlers_block_by_func (widget, + gimp_coordinates_callback, + data); + + if (ROUND (new_x) != ROUND (data->last_x)) + { + data->last_x = new_x; + new_y = (new_x * data->orig_y) / data->orig_x; + + gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (widget), 1, + new_y); + data->last_y + = gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (widget), 1); + } + else if (ROUND (new_y) != ROUND (data->last_y)) + { + data->last_y = new_y; + new_x = (new_y * data->orig_x) / data->orig_y; + + gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (widget), 0, + new_x); + data->last_x + = gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (widget), 0); + } + + g_signal_handlers_unblock_by_func (widget, + gimp_coordinates_callback, + data); + } + } + else + { + if (new_x != data->last_x) + { + gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (widget), 1, new_x); + data->last_y = data->last_x + = gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (widget), 1); + } + else if (new_y != data->last_y) + { + gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (widget), 0, new_y); + data->last_x = data->last_y + = gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (widget), 0); + } + } + } + else + { + if (new_x != data->last_x) + data->last_x = new_x; + if (new_y != data->last_y) + data->last_y = new_y; + } +} + +static void +gimp_coordinates_data_free (GimpCoordinatesData *data) +{ + g_slice_free (GimpCoordinatesData, data); +} + +static void +gimp_coordinates_chainbutton_toggled (GimpChainButton *button, + GimpSizeEntry *entry) +{ + if (gimp_chain_button_get_active (button)) + { + GimpCoordinatesData *data; + + data = g_object_get_data (G_OBJECT (entry), "coordinates-data"); + + data->orig_x = gimp_size_entry_get_refval (entry, 0); + data->orig_y = gimp_size_entry_get_refval (entry, 1); + } +} + +/** + * gimp_coordinates_new: + * @unit: The initial unit of the #GimpUnitMenu. + * @unit_format: A printf-like unit-format string as is used with + * gimp_unit_menu_new(). + * @menu_show_pixels: %TRUE if the #GimpUnitMenu should contain an item + * for GIMP_UNIT_PIXEL. + * @menu_show_percent: %TRUE if the #GimpUnitMenu should contain an item + * for GIMP_UNIT_PERCENT. + * @spinbutton_width: The horizontal size of the #GimpSizeEntry's + * #GtkSpinButton's. + * @update_policy: The update policy for the #GimpSizeEntry. + * @chainbutton_active: %TRUE if the attached #GimpChainButton should be + * active. + * @chain_constrains_ratio: %TRUE if the chainbutton should constrain the + * fields' aspect ratio. If %FALSE, the values will + * be constrained. + * @xlabel: The label for the X coordinate. + * @x: The initial value of the X coordinate. + * @xres: The horizontal resolution in DPI. + * @lower_boundary_x: The lower boundary of the X coordinate. + * @upper_boundary_x: The upper boundary of the X coordinate. + * @xsize_0: The X value which will be treated as 0%. + * @xsize_100: The X value which will be treated as 100%. + * @ylabel: The label for the Y coordinate. + * @y: The initial value of the Y coordinate. + * @yres: The vertical resolution in DPI. + * @lower_boundary_y: The lower boundary of the Y coordinate. + * @upper_boundary_y: The upper boundary of the Y coordinate. + * @ysize_0: The Y value which will be treated as 0%. + * @ysize_100: The Y value which will be treated as 100%. + * + * Convenience function that creates a #GimpSizeEntry with two fields for x/y + * coordinates/sizes with a #GimpChainButton attached to constrain either the + * two fields' values or the ratio between them. + * + * Returns: The new #GimpSizeEntry. + **/ +GtkWidget * +gimp_coordinates_new (GimpUnit unit, + const gchar *unit_format, + gboolean menu_show_pixels, + gboolean menu_show_percent, + gint spinbutton_width, + GimpSizeEntryUpdatePolicy update_policy, + + gboolean chainbutton_active, + gboolean chain_constrains_ratio, + + const gchar *xlabel, + gdouble x, + gdouble xres, + gdouble lower_boundary_x, + gdouble upper_boundary_x, + gdouble xsize_0, /* % */ + gdouble xsize_100, /* % */ + + const gchar *ylabel, + gdouble y, + gdouble yres, + gdouble lower_boundary_y, + gdouble upper_boundary_y, + gdouble ysize_0, /* % */ + gdouble ysize_100 /* % */) +{ + GimpCoordinatesData *data; + GtkAdjustment *adjustment; + GtkWidget *spinbutton; + GtkWidget *sizeentry; + GtkWidget *chainbutton; + + adjustment = (GtkAdjustment *) gtk_adjustment_new (1, 0, 1, 1, 10, 0); + spinbutton = gimp_spin_button_new (adjustment, 1.0, 2); + gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE); + + if (spinbutton_width > 0) + { + if (spinbutton_width < 17) + gtk_entry_set_width_chars (GTK_ENTRY (spinbutton), spinbutton_width); + else + gtk_widget_set_size_request (spinbutton, spinbutton_width, -1); + } + + sizeentry = gimp_size_entry_new (1, unit, unit_format, + menu_show_pixels, + menu_show_percent, + FALSE, + spinbutton_width, + update_policy); + gtk_table_set_col_spacing (GTK_TABLE (sizeentry), 0, 4); + gtk_table_set_col_spacing (GTK_TABLE (sizeentry), 2, 4); + gimp_size_entry_add_field (GIMP_SIZE_ENTRY (sizeentry), + GTK_SPIN_BUTTON (spinbutton), NULL); + gtk_table_attach_defaults (GTK_TABLE (sizeentry), spinbutton, 1, 2, 0, 1); + gtk_widget_show (spinbutton); + + gimp_size_entry_set_unit (GIMP_SIZE_ENTRY (sizeentry), + (update_policy == GIMP_SIZE_ENTRY_UPDATE_RESOLUTION) || + (menu_show_pixels == FALSE) ? + GIMP_UNIT_INCH : GIMP_UNIT_PIXEL); + + gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (sizeentry), 0, xres, TRUE); + gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (sizeentry), 1, yres, TRUE); + gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (sizeentry), 0, + lower_boundary_x, upper_boundary_x); + gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (sizeentry), 1, + lower_boundary_y, upper_boundary_y); + + if (menu_show_percent) + { + gimp_size_entry_set_size (GIMP_SIZE_ENTRY (sizeentry), 0, + xsize_0, xsize_100); + gimp_size_entry_set_size (GIMP_SIZE_ENTRY (sizeentry), 1, + ysize_0, ysize_100); + } + + gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (sizeentry), 0, x); + gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (sizeentry), 1, y); + + gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (sizeentry), + xlabel, 0, 0, 0.0); + gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (sizeentry), + ylabel, 1, 0, 0.0); + + chainbutton = gimp_chain_button_new (GIMP_CHAIN_RIGHT); + + if (chainbutton_active) + gimp_chain_button_set_active (GIMP_CHAIN_BUTTON (chainbutton), TRUE); + + gtk_table_attach (GTK_TABLE (sizeentry), chainbutton, 2, 3, 0, 2, + GTK_SHRINK | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0); + gtk_widget_show (chainbutton); + + data = g_slice_new (GimpCoordinatesData); + + data->chainbutton = GIMP_CHAIN_BUTTON (chainbutton); + data->chain_constrains_ratio = chain_constrains_ratio; + data->orig_x = x; + data->orig_y = y; + data->last_x = x; + data->last_y = y; + + g_object_set_data_full (G_OBJECT (sizeentry), "coordinates-data", + data, + (GDestroyNotify) gimp_coordinates_data_free); + + g_signal_connect (sizeentry, "value-changed", + G_CALLBACK (gimp_coordinates_callback), + data); + + g_object_set_data (G_OBJECT (sizeentry), "chainbutton", chainbutton); + + g_signal_connect (chainbutton, "toggled", + G_CALLBACK (gimp_coordinates_chainbutton_toggled), + sizeentry); + + return sizeentry; +} + + +/* + * Standard Callbacks + */ + +/** + * gimp_toggle_button_sensitive_update: + * @toggle_button: The #GtkToggleButton the "set_sensitive" and + * "inverse_sensitive" lists are attached to. + * + * If you attached a pointer to a #GtkWidget with g_object_set_data() and + * the "set_sensitive" key to the #GtkToggleButton, the sensitive state of + * the attached widget will be set according to the toggle button's + * "active" state. + * + * You can attach an arbitrary list of widgets by attaching another + * "set_sensitive" data pointer to the first widget (and so on...). + * + * This function can also set the sensitive state according to the toggle + * button's inverse "active" state by attaching widgets with the + * "inverse_sensitive" key. + * + * Deprecated: use g_object_bind_property() instead of using the + * "set_sensitive" and "inverse_sensitive" data pointers. + **/ +void +gimp_toggle_button_sensitive_update (GtkToggleButton *toggle_button) +{ + GtkWidget *set_sensitive; + gboolean active; + + active = gtk_toggle_button_get_active (toggle_button); + + set_sensitive = + g_object_get_data (G_OBJECT (toggle_button), "set_sensitive"); + while (set_sensitive) + { + gtk_widget_set_sensitive (set_sensitive, active); + set_sensitive = + g_object_get_data (G_OBJECT (set_sensitive), "set_sensitive"); + } + + set_sensitive = + g_object_get_data (G_OBJECT (toggle_button), "inverse_sensitive"); + while (set_sensitive) + { + gtk_widget_set_sensitive (set_sensitive, ! active); + set_sensitive = + g_object_get_data (G_OBJECT (set_sensitive), "inverse_sensitive"); + } +} + +/** + * gimp_toggle_button_update: + * @widget: A #GtkToggleButton. + * @data: A pointer to a #gint variable which will store the value of + * gtk_toggle_button_get_active(). + * + * Note that this function calls gimp_toggle_button_sensitive_update() + * which is a deprecated hack you shouldn't use. See that function's + * documentation for a proper replacement of its functionality. + **/ +void +gimp_toggle_button_update (GtkWidget *widget, + gpointer data) +{ + gint *toggle_val = (gint *) data; + + if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (widget))) + *toggle_val = TRUE; + else + *toggle_val = FALSE; + + gimp_toggle_button_sensitive_update (GTK_TOGGLE_BUTTON (widget)); +} + +/** + * gimp_radio_button_update: + * @widget: A #GtkRadioButton. + * @data: A pointer to a #gint variable which will store the value of + * GPOINTER_TO_INT (g_object_get_data (@widget, "gimp-item-data")). + * + * Note that this function calls gimp_toggle_button_sensitive_update() + * which is a deprecated hack you shouldn't use. See that function's + * documentation for a proper replacement of its functionality. + **/ +void +gimp_radio_button_update (GtkWidget *widget, + gpointer data) +{ + if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (widget))) + { + gint *toggle_val = (gint *) data; + + *toggle_val = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (widget), + "gimp-item-data")); + } + + gimp_toggle_button_sensitive_update (GTK_TOGGLE_BUTTON (widget)); +} + +/** + * gimp_int_adjustment_update: + * @adjustment: A #GtkAdjustment. + * @data: A pointer to a #gint variable which will store the + * @adjustment's value. + * + * Note that the #GtkAdjustment's value (which is a #gdouble) will be + * rounded with RINT(). + **/ +void +gimp_int_adjustment_update (GtkAdjustment *adjustment, + gpointer data) +{ + gint *val = (gint *) data; + + *val = RINT (gtk_adjustment_get_value (adjustment)); +} + +/** + * gimp_uint_adjustment_update: + * @adjustment: A #GtkAdjustment. + * @data: A pointer to a #guint variable which will store the + * @adjustment's value. + * + * Note that the #GtkAdjustment's value (which is a #gdouble) will be rounded + * with (#guint) (value + 0.5). + **/ +void +gimp_uint_adjustment_update (GtkAdjustment *adjustment, + gpointer data) +{ + guint *val = (guint *) data; + + *val = (guint) (gtk_adjustment_get_value (adjustment) + 0.5); +} + +/** + * gimp_float_adjustment_update: + * @adjustment: A #GtkAdjustment. + * @data: A pointer to a #gfloat variable which will store the + * @adjustment's value. + **/ +void +gimp_float_adjustment_update (GtkAdjustment *adjustment, + gpointer data) +{ + gfloat *val = (gfloat *) data; + + *val = gtk_adjustment_get_value (adjustment); + +} + +/** + * gimp_double_adjustment_update: + * @adjustment: A #GtkAdjustment. + * @data: A pointer to a #gdouble variable which will store the + * @adjustment's value. + **/ +void +gimp_double_adjustment_update (GtkAdjustment *adjustment, + gpointer data) +{ + gdouble *val = (gdouble *) data; + + *val = gtk_adjustment_get_value (adjustment); +} |