/* GTK - The GIMP Toolkit * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald * * GtkSpinButton widget for GTK * Copyright (C) 1998 Lars Hamann and Stefan Jeske * * 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 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library. If not, see . */ /* * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS * file for a list of people on the GTK+ Team. See the ChangeLog * files for a list of changes. These files are distributed with * GTK+ at ftp://ftp.gtk.org/pub/gtk/. */ #include "config.h" #include "gtkspinbutton.h" #include "gtkadjustment.h" #include "gtkbox.h" #include "gtkbutton.h" #include "gtkbuttonprivate.h" #include "gtkcssstylepropertyprivate.h" #include "gtkeditable.h" #include "gtkcelleditable.h" #include "gtkimage.h" #include "gtktext.h" #include "gtkeventcontrollerkey.h" #include "gtkeventcontrollerfocus.h" #include "gtkeventcontrollermotion.h" #include "gtkeventcontrollerscroll.h" #include "gtkgestureclick.h" #include "gtkgestureswipe.h" #include "gtkicontheme.h" #include "gtkintl.h" #include "gtkmarshalers.h" #include "gtkorientable.h" #include "gtkprivate.h" #include "gtksettings.h" #include "gtkstylecontextprivate.h" #include "gtktypebuiltins.h" #include "gtkwidgetprivate.h" #include "gtkboxlayout.h" #include "gtktextprivate.h" #include #include #include #include #include #define MAX_TIMER_CALLS 5 #define EPSILON 1e-10 #define MAX_DIGITS 20 #define TIMEOUT_INITIAL 500 #define TIMEOUT_REPEAT 50 /** * SECTION:gtkspinbutton * @Title: GtkSpinButton * @Short_description: Retrieve an integer or floating-point number from * the user * @See_also: #GtkEntry * * A #GtkSpinButton is an ideal way to allow the user to set the value of * some attribute. Rather than having to directly type a number into a * #GtkEntry, GtkSpinButton allows the user to click on one of two arrows * to increment or decrement the displayed value. A value can still be * typed in, with the bonus that it can be checked to ensure it is in a * given range. * * The main properties of a GtkSpinButton are through an adjustment. * See the #GtkAdjustment section for more details about an adjustment's * properties. * * Note that GtkSpinButton will by default make its entry large enough to * accommodate the lower and upper bounds of the adjustment. If this is * not desired, the automatic sizing can be turned off by explicitly * setting #GtkEditable::width-chars to a value != -1. * * ## Using a GtkSpinButton to get an integer * * |[ * // Provides a function to retrieve an integer value from a GtkSpinButton * // and creates a spin button to model percentage values. * * int * grab_int_value (GtkSpinButton *button, * gpointer user_data) * { * return gtk_spin_button_get_value_as_int (button); * } * * void * create_integer_spin_button (void) * { * * GtkWidget *window, *button; * GtkAdjustment *adjustment; * * adjustment = gtk_adjustment_new (50.0, 0.0, 100.0, 1.0, 5.0, 0.0); * * window = gtk_window_new (); * * // creates the spinbutton, with no decimal places * button = gtk_spin_button_new (adjustment, 1.0, 0); * gtk_window_set_child (GTK_WINDOW (window), button); * * gtk_widget_show (window); * } * ]| * * ## Using a GtkSpinButton to get a floating point value * * |[ * // Provides a function to retrieve a floating point value from a * // GtkSpinButton, and creates a high precision spin button. * * float * grab_float_value (GtkSpinButton *button, * gpointer user_data) * { * return gtk_spin_button_get_value (button); * } * * void * create_floating_spin_button (void) * { * GtkWidget *window, *button; * GtkAdjustment *adjustment; * * adjustment = gtk_adjustment_new (2.500, 0.0, 5.0, 0.001, 0.1, 0.0); * * window = gtk_window_new (); * * // creates the spinbutton, with three decimal places * button = gtk_spin_button_new (adjustment, 0.001, 3); * gtk_window_set_child (GTK_WINDOW (window), button); * * gtk_widget_show (window); * } * ]| * * # CSS nodes * * |[ * spinbutton.horizontal * ├── text * │ ├── undershoot.left * │ ╰── undershoot.right * ├── button.down * ╰── button.up * ]| * * |[ * spinbutton.vertical * ├── button.up * ├── text * │ ├── undershoot.left * │ ╰── undershoot.right * ╰── button.down * ]| * * GtkSpinButtons main CSS node has the name spinbutton. It creates subnodes * for the entry and the two buttons, with these names. The button nodes have * the style classes .up and .down. The GtkText subnodes (if present) are put * below the text node. The orientation of the spin button is reflected in * the .vertical or .horizontal style class on the main node. * * # Accessiblity * * GtkSpinButton uses the #GTK_ACCESSIBLE_ROLE_SPIN_BUTTON role. */ typedef struct _GtkSpinButton GtkSpinButton; typedef struct _GtkSpinButtonClass GtkSpinButtonClass; struct _GtkSpinButton { GtkWidget parent_instance; GtkAdjustment *adjustment; GtkWidget *entry; GtkWidget *up_button; GtkWidget *down_button; GtkWidget *click_child; guint32 timer; GtkSpinButtonUpdatePolicy update_policy; double climb_rate; double timer_step; int width_chars; GtkOrientation orientation; guint digits : 10; guint need_timer : 1; guint numeric : 1; guint snap_to_ticks : 1; guint timer_calls : 3; guint wrap : 1; guint editing_canceled : 1; }; struct _GtkSpinButtonClass { GtkWidgetClass parent_class; int (*input) (GtkSpinButton *spin_button, double *new_value); int (*output) (GtkSpinButton *spin_button); void (*value_changed) (GtkSpinButton *spin_button); /* Action signals for keybindings, do not connect to these */ void (*change_value) (GtkSpinButton *spin_button, GtkScrollType scroll); void (*wrapped) (GtkSpinButton *spin_button); }; enum { PROP_0, PROP_ADJUSTMENT, PROP_CLIMB_RATE, PROP_DIGITS, PROP_SNAP_TO_TICKS, PROP_NUMERIC, PROP_WRAP, PROP_UPDATE_POLICY, PROP_VALUE, NUM_SPINBUTTON_PROPS, PROP_ORIENTATION = NUM_SPINBUTTON_PROPS, PROP_EDITING_CANCELED }; /* Signals */ enum { INPUT, OUTPUT, VALUE_CHANGED, CHANGE_VALUE, WRAPPED, LAST_SIGNAL }; static void gtk_spin_button_editable_init (GtkEditableInterface *iface); static void gtk_spin_button_cell_editable_init (GtkCellEditableIface *iface); static void gtk_spin_button_finalize (GObject *object); static void gtk_spin_button_dispose (GObject *object); static void gtk_spin_button_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec); static void gtk_spin_button_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec); static void gtk_spin_button_realize (GtkWidget *widget); static void gtk_spin_button_state_flags_changed (GtkWidget *widget, GtkStateFlags previous_state); static gboolean gtk_spin_button_timer (GtkSpinButton *spin_button); static gboolean gtk_spin_button_stop_spinning (GtkSpinButton *spin); static void gtk_spin_button_value_changed (GtkAdjustment *adjustment, GtkSpinButton *spin_button); static void gtk_spin_button_activate (GtkText *entry, gpointer user_data); static void gtk_spin_button_unset_adjustment (GtkSpinButton *spin_button); static void gtk_spin_button_set_orientation (GtkSpinButton *spin_button, GtkOrientation orientation); static void gtk_spin_button_snap (GtkSpinButton *spin_button, double val); static void gtk_spin_button_insert_text (GtkEditable *editable, const char *new_text, int new_text_length, int *position); static void gtk_spin_button_real_spin (GtkSpinButton *spin_button, double step); static void gtk_spin_button_real_change_value (GtkSpinButton *spin, GtkScrollType scroll); static int gtk_spin_button_default_input (GtkSpinButton *spin_button, double *new_val); static void gtk_spin_button_default_output (GtkSpinButton *spin_button); static void gtk_spin_button_update_width_chars (GtkSpinButton *spin_button); static guint spinbutton_signals[LAST_SIGNAL] = {0}; static GParamSpec *spinbutton_props[NUM_SPINBUTTON_PROPS] = {NULL, }; G_DEFINE_TYPE_WITH_CODE (GtkSpinButton, gtk_spin_button, GTK_TYPE_WIDGET, G_IMPLEMENT_INTERFACE (GTK_TYPE_ORIENTABLE, NULL) G_IMPLEMENT_INTERFACE (GTK_TYPE_EDITABLE, gtk_spin_button_editable_init) G_IMPLEMENT_INTERFACE (GTK_TYPE_CELL_EDITABLE, gtk_spin_button_cell_editable_init)) #define add_spin_binding(widget_class, keyval, mask, scroll) \ gtk_widget_class_add_binding_signal (widget_class, keyval, mask, \ "change-value", \ "(i)", scroll) static gboolean gtk_spin_button_grab_focus (GtkWidget *widget) { GtkSpinButton *spin_button = GTK_SPIN_BUTTON (widget); return gtk_widget_grab_focus (spin_button->entry); } static gboolean gtk_spin_button_mnemonic_activate (GtkWidget *widget, gboolean group_cycling) { GtkSpinButton *spin_button = GTK_SPIN_BUTTON (widget); return gtk_widget_grab_focus (spin_button->entry); } static void gtk_spin_button_class_init (GtkSpinButtonClass *class) { GObjectClass *gobject_class = G_OBJECT_CLASS (class); GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class); gobject_class->finalize = gtk_spin_button_finalize; gobject_class->dispose = gtk_spin_button_dispose; gobject_class->set_property = gtk_spin_button_set_property; gobject_class->get_property = gtk_spin_button_get_property; widget_class->realize = gtk_spin_button_realize; widget_class->state_flags_changed = gtk_spin_button_state_flags_changed; widget_class->mnemonic_activate = gtk_spin_button_mnemonic_activate; widget_class->grab_focus = gtk_spin_button_grab_focus; widget_class->focus = gtk_widget_focus_child; class->input = NULL; class->output = NULL; class->change_value = gtk_spin_button_real_change_value; spinbutton_props[PROP_ADJUSTMENT] = g_param_spec_object ("adjustment", P_("Adjustment"), P_("The adjustment that holds the value of the spin button"), GTK_TYPE_ADJUSTMENT, GTK_PARAM_READWRITE); spinbutton_props[PROP_CLIMB_RATE] = g_param_spec_double ("climb-rate", P_("Climb Rate"), P_("The acceleration rate when you hold down a button or key"), 0.0, G_MAXDOUBLE, 0.0, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY); spinbutton_props[PROP_DIGITS] = g_param_spec_uint ("digits", P_("Digits"), P_("The number of decimal places to display"), 0, MAX_DIGITS, 0, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY); spinbutton_props[PROP_SNAP_TO_TICKS] = g_param_spec_boolean ("snap-to-ticks", P_("Snap to Ticks"), P_("Whether erroneous values are automatically changed to a spin button’s nearest step increment"), FALSE, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY); spinbutton_props[PROP_NUMERIC] = g_param_spec_boolean ("numeric", P_("Numeric"), P_("Whether non-numeric characters should be ignored"), FALSE, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY); spinbutton_props[PROP_WRAP] = g_param_spec_boolean ("wrap", P_("Wrap"), P_("Whether a spin button should wrap upon reaching its limits"), FALSE, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY); spinbutton_props[PROP_UPDATE_POLICY] = g_param_spec_enum ("update-policy", P_("Update Policy"), P_("Whether the spin button should update always, or only when the value is legal"), GTK_TYPE_SPIN_BUTTON_UPDATE_POLICY, GTK_UPDATE_ALWAYS, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY); spinbutton_props[PROP_VALUE] = g_param_spec_double ("value", P_("Value"), P_("Reads the current value, or sets a new value"), -G_MAXDOUBLE, G_MAXDOUBLE, 0.0, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY); g_object_class_install_properties (gobject_class, NUM_SPINBUTTON_PROPS, spinbutton_props); g_object_class_override_property (gobject_class, PROP_ORIENTATION, "orientation"); g_object_class_override_property (gobject_class, PROP_EDITING_CANCELED, "editing-canceled"); gtk_editable_install_properties (gobject_class, PROP_EDITING_CANCELED + 1); /** * GtkSpinButton::input: * @spin_button: the object on which the signal was emitted * @new_value: (out) (type double): return location for the new value * * The ::input signal can be used to influence the conversion of * the users input into a double value. The signal handler is * expected to use gtk_editable_get_text() to retrieve the text of * the spinbutton and set @new_value to the new value. * * The default conversion uses g_strtod(). * * Returns: %TRUE for a successful conversion, %FALSE if the input * was not handled, and %GTK_INPUT_ERROR if the conversion failed. */ spinbutton_signals[INPUT] = g_signal_new (I_("input"), G_TYPE_FROM_CLASS (gobject_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GtkSpinButtonClass, input), NULL, NULL, _gtk_marshal_INT__POINTER, G_TYPE_INT, 1, G_TYPE_POINTER); /** * GtkSpinButton::output: * @spin_button: the object on which the signal was emitted * * The ::output signal can be used to change to formatting * of the value that is displayed in the spin buttons entry. * |[ * // show leading zeros * static gboolean * on_output (GtkSpinButton *spin, * gpointer data) * { * GtkAdjustment *adjustment; * char *text; * int value; * * adjustment = gtk_spin_button_get_adjustment (spin); * value = (int)gtk_adjustment_get_value (adjustment); * text = g_strdup_printf ("%02d", value); * gtk_spin_button_set_text (spin, text): * g_free (text); * * return TRUE; * } * ]| * * Returns: %TRUE if the value has been displayed */ spinbutton_signals[OUTPUT] = g_signal_new (I_("output"), G_TYPE_FROM_CLASS (gobject_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GtkSpinButtonClass, output), _gtk_boolean_handled_accumulator, NULL, _gtk_marshal_BOOLEAN__VOID, G_TYPE_BOOLEAN, 0); /** * GtkSpinButton::value-changed: * @spin_button: the object on which the signal was emitted * * The ::value-changed signal is emitted when the value represented by * @spinbutton changes. Also see the #GtkSpinButton::output signal. */ spinbutton_signals[VALUE_CHANGED] = g_signal_new (I_("value-changed"), G_TYPE_FROM_CLASS (gobject_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GtkSpinButtonClass, value_changed), NULL, NULL, NULL, G_TYPE_NONE, 0); /** * GtkSpinButton::wrapped: * @spin_button: the object on which the signal was emitted * * The ::wrapped signal is emitted right after the spinbutton wraps * from its maximum to minimum value or vice-versa. */ spinbutton_signals[WRAPPED] = g_signal_new (I_("wrapped"), G_TYPE_FROM_CLASS (gobject_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GtkSpinButtonClass, wrapped), NULL, NULL, NULL, G_TYPE_NONE, 0); /* Action signals */ /** * GtkSpinButton::change-value: * @spin_button: the object on which the signal was emitted * @scroll: a #GtkScrollType to specify the speed and amount of change * * The ::change-value signal is a [keybinding signal][GtkBindingSignal] * which gets emitted when the user initiates a value change. * * Applications should not connect to it, but may emit it with * g_signal_emit_by_name() if they need to control the cursor * programmatically. * * The default bindings for this signal are Up/Down and PageUp and/PageDown. */ spinbutton_signals[CHANGE_VALUE] = g_signal_new (I_("change-value"), G_TYPE_FROM_CLASS (gobject_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (GtkSpinButtonClass, change_value), NULL, NULL, NULL, G_TYPE_NONE, 1, GTK_TYPE_SCROLL_TYPE); add_spin_binding (widget_class, GDK_KEY_Up, 0, GTK_SCROLL_STEP_UP); add_spin_binding (widget_class, GDK_KEY_KP_Up, 0, GTK_SCROLL_STEP_UP); add_spin_binding (widget_class, GDK_KEY_Down, 0, GTK_SCROLL_STEP_DOWN); add_spin_binding (widget_class, GDK_KEY_KP_Down, 0, GTK_SCROLL_STEP_DOWN); add_spin_binding (widget_class, GDK_KEY_Page_Up, 0, GTK_SCROLL_PAGE_UP); add_spin_binding (widget_class, GDK_KEY_Page_Down, 0, GTK_SCROLL_PAGE_DOWN); add_spin_binding (widget_class, GDK_KEY_End, GDK_CONTROL_MASK, GTK_SCROLL_END); add_spin_binding (widget_class, GDK_KEY_Home, GDK_CONTROL_MASK, GTK_SCROLL_START); add_spin_binding (widget_class, GDK_KEY_Page_Up, GDK_CONTROL_MASK, GTK_SCROLL_END); add_spin_binding (widget_class, GDK_KEY_Page_Down, GDK_CONTROL_MASK, GTK_SCROLL_START); gtk_widget_class_set_layout_manager_type (widget_class, GTK_TYPE_BOX_LAYOUT); gtk_widget_class_set_css_name (widget_class, I_("spinbutton")); gtk_widget_class_set_accessible_role (widget_class, GTK_ACCESSIBLE_ROLE_SPIN_BUTTON); } static GtkEditable * gtk_spin_button_get_delegate (GtkEditable *editable) { GtkSpinButton *spin_button = GTK_SPIN_BUTTON (editable); return GTK_EDITABLE (spin_button->entry); } static void gtk_spin_button_editable_init (GtkEditableInterface *iface) { iface->get_delegate = gtk_spin_button_get_delegate; iface->insert_text = gtk_spin_button_insert_text; } static void gtk_cell_editable_spin_button_activated (GtkText *text, GtkSpinButton *spin) { g_object_ref (spin); gtk_cell_editable_editing_done (GTK_CELL_EDITABLE (spin)); gtk_cell_editable_remove_widget (GTK_CELL_EDITABLE (spin)); g_object_unref (spin); } static gboolean gtk_cell_editable_spin_button_key_pressed (GtkEventControllerKey *key, guint keyval, guint keycode, GdkModifierType modifiers, GtkSpinButton *spin) { if (keyval == GDK_KEY_Escape) { spin->editing_canceled = TRUE; g_object_ref (spin); gtk_cell_editable_editing_done (GTK_CELL_EDITABLE (spin)); gtk_cell_editable_remove_widget (GTK_CELL_EDITABLE (spin)); g_object_unref (spin); return GDK_EVENT_STOP; } /* override focus */ if (keyval == GDK_KEY_Up || keyval == GDK_KEY_Down) { g_object_ref (spin); gtk_cell_editable_editing_done (GTK_CELL_EDITABLE (spin)); gtk_cell_editable_remove_widget (GTK_CELL_EDITABLE (spin)); g_object_unref (spin); return GDK_EVENT_STOP; } return GDK_EVENT_PROPAGATE; } static void gtk_spin_button_start_editing (GtkCellEditable *cell_editable, GdkEvent *event) { GtkSpinButton *spin = GTK_SPIN_BUTTON (cell_editable); g_signal_connect (spin->entry, "activate", G_CALLBACK (gtk_cell_editable_spin_button_activated), cell_editable); g_signal_connect (gtk_text_get_key_controller (GTK_TEXT (spin->entry)), "key-pressed", G_CALLBACK (gtk_cell_editable_spin_button_key_pressed), cell_editable); } static void gtk_spin_button_cell_editable_init (GtkCellEditableIface *iface) { iface->start_editing = gtk_spin_button_start_editing; } static void gtk_spin_button_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) { GtkSpinButton *spin_button = GTK_SPIN_BUTTON (object); if (prop_id == PROP_EDITING_CANCELED + 1 + GTK_EDITABLE_PROP_WIDTH_CHARS) { spin_button->width_chars = g_value_get_int (value); gtk_spin_button_update_width_chars (spin_button); return; } if (gtk_editable_delegate_set_property (object, prop_id, value, pspec)) return; switch (prop_id) { GtkAdjustment *adjustment; case PROP_ADJUSTMENT: adjustment = GTK_ADJUSTMENT (g_value_get_object (value)); gtk_spin_button_set_adjustment (spin_button, adjustment); break; case PROP_CLIMB_RATE: gtk_spin_button_configure (spin_button, spin_button->adjustment, g_value_get_double (value), spin_button->digits); break; case PROP_DIGITS: gtk_spin_button_configure (spin_button, spin_button->adjustment, spin_button->climb_rate, g_value_get_uint (value)); break; case PROP_SNAP_TO_TICKS: gtk_spin_button_set_snap_to_ticks (spin_button, g_value_get_boolean (value)); break; case PROP_NUMERIC: gtk_spin_button_set_numeric (spin_button, g_value_get_boolean (value)); break; case PROP_WRAP: gtk_spin_button_set_wrap (spin_button, g_value_get_boolean (value)); break; case PROP_UPDATE_POLICY: gtk_spin_button_set_update_policy (spin_button, g_value_get_enum (value)); break; case PROP_VALUE: gtk_spin_button_set_value (spin_button, g_value_get_double (value)); break; case PROP_ORIENTATION: gtk_spin_button_set_orientation (spin_button, g_value_get_enum (value)); break; case PROP_EDITING_CANCELED: if (spin_button->editing_canceled != g_value_get_boolean (value)) { spin_button->editing_canceled = g_value_get_boolean (value); g_object_notify (object, "editing-canceled"); } break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void gtk_spin_button_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) { GtkSpinButton *spin_button = GTK_SPIN_BUTTON (object); if (prop_id == PROP_EDITING_CANCELED + 1 + GTK_EDITABLE_PROP_WIDTH_CHARS) { g_value_set_int (value, spin_button->width_chars); return; } if (gtk_editable_delegate_get_property (object, prop_id, value, pspec)) return; switch (prop_id) { case PROP_ADJUSTMENT: g_value_set_object (value, spin_button->adjustment); break; case PROP_CLIMB_RATE: g_value_set_double (value, spin_button->climb_rate); break; case PROP_DIGITS: g_value_set_uint (value, spin_button->digits); break; case PROP_SNAP_TO_TICKS: g_value_set_boolean (value, spin_button->snap_to_ticks); break; case PROP_NUMERIC: g_value_set_boolean (value, spin_button->numeric); break; case PROP_WRAP: g_value_set_boolean (value, spin_button->wrap); break; case PROP_UPDATE_POLICY: g_value_set_enum (value, spin_button->update_policy); break; case PROP_VALUE: g_value_set_double (value, gtk_adjustment_get_value (spin_button->adjustment)); break; case PROP_ORIENTATION: g_value_set_enum (value, spin_button->orientation); break; case PROP_EDITING_CANCELED: g_value_set_boolean (value, spin_button->editing_canceled); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void swipe_gesture_begin (GtkGesture *gesture, GdkEventSequence *sequence, GtkSpinButton *spin_button) { gtk_gesture_set_state (gesture, GTK_EVENT_SEQUENCE_CLAIMED); gtk_widget_grab_focus (GTK_WIDGET (spin_button)); } static void swipe_gesture_update (GtkGesture *gesture, GdkEventSequence *sequence, GtkSpinButton *spin_button) { double vel_y; gtk_gesture_swipe_get_velocity (GTK_GESTURE_SWIPE (gesture), NULL, &vel_y); gtk_spin_button_real_spin (spin_button, -vel_y / 20); } static gboolean scroll_controller_scroll (GtkEventControllerScroll *Scroll, double dx, double dy, GtkWidget *widget) { GtkSpinButton *spin = GTK_SPIN_BUTTON (widget); if (!gtk_widget_has_focus (widget)) gtk_widget_grab_focus (widget); gtk_spin_button_real_spin (spin, -dy * gtk_adjustment_get_step_increment (spin->adjustment)); return GDK_EVENT_STOP; } static gboolean gtk_spin_button_stop_spinning (GtkSpinButton *spin) { gboolean did_spin = FALSE; if (spin->timer) { g_source_remove (spin->timer); spin->timer = 0; spin->need_timer = FALSE; did_spin = TRUE; } spin->timer_step = gtk_adjustment_get_step_increment (spin->adjustment); spin->timer_calls = 0; spin->click_child = NULL; return did_spin; } static void start_spinning (GtkSpinButton *spin, GtkWidget *click_child, double step) { spin->click_child = click_child; if (!spin->timer) { spin->timer_step = step; spin->need_timer = TRUE; spin->timer = g_timeout_add (TIMEOUT_INITIAL, (GSourceFunc) gtk_spin_button_timer, (gpointer) spin); g_source_set_name_by_id (spin->timer, "[gtk] gtk_spin_button_timer"); } gtk_spin_button_real_spin (spin, click_child == spin->up_button ? step : -step); } static void button_pressed_cb (GtkGestureClick *gesture, int n_pressses, double x, double y, gpointer user_data) { GtkSpinButton *spin_button = user_data; GtkWidget *pressed_button = gtk_event_controller_get_widget (GTK_EVENT_CONTROLLER (gesture)); gtk_widget_grab_focus (GTK_WIDGET (spin_button)); if (gtk_editable_get_editable (GTK_EDITABLE (spin_button->entry))) { int button = gtk_gesture_single_get_current_button (GTK_GESTURE_SINGLE (gesture)); gtk_spin_button_update (spin_button); if (button == GDK_BUTTON_PRIMARY) start_spinning (spin_button, pressed_button, gtk_adjustment_get_step_increment (spin_button->adjustment)); else if (button == GDK_BUTTON_MIDDLE) start_spinning (spin_button, pressed_button, gtk_adjustment_get_page_increment (spin_button->adjustment)); gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_CLAIMED); } else { gtk_widget_error_bell (GTK_WIDGET (spin_button)); } } static void button_released_cb (GtkGestureClick *gesture, int n_pressses, double x, double y, gpointer user_data) { GtkSpinButton *spin_button = user_data; int button = gtk_gesture_single_get_current_button (GTK_GESTURE_SINGLE (gesture)); gtk_spin_button_stop_spinning (spin_button); if (button == GDK_BUTTON_SECONDARY) { GtkWidget *button_widget = gtk_event_controller_get_widget (GTK_EVENT_CONTROLLER (gesture)); double diff; if (button_widget == spin_button->down_button) { diff = gtk_adjustment_get_value (spin_button->adjustment) - gtk_adjustment_get_lower (spin_button->adjustment); if (diff > EPSILON) gtk_spin_button_real_spin (spin_button, -diff); } else if (button_widget == spin_button->up_button) { diff = gtk_adjustment_get_upper (spin_button->adjustment) - gtk_adjustment_get_value (spin_button->adjustment); if (diff > EPSILON) gtk_spin_button_real_spin (spin_button, diff); } } } static void button_cancel_cb (GtkGesture *gesture, GdkEventSequence *sequence, GtkSpinButton *spin_button) { gtk_spin_button_stop_spinning (spin_button); } static void key_controller_key_released (GtkEventControllerKey *key, guint keyval, guint keycode, GdkModifierType modifiers, GtkSpinButton *spin_button) { spin_button->timer_step = gtk_adjustment_get_step_increment (spin_button->adjustment); spin_button->timer_calls = 0; } static void key_controller_focus_out (GtkEventController *controller, GtkSpinButton *spin_button) { if (gtk_editable_get_editable (GTK_EDITABLE (spin_button->entry))) gtk_spin_button_update (spin_button); } static void gtk_spin_button_init (GtkSpinButton *spin_button) { GtkEventController *controller; GtkGesture *gesture; spin_button->adjustment = NULL; spin_button->timer = 0; spin_button->climb_rate = 0.0; spin_button->timer_step = 0.0; spin_button->update_policy = GTK_UPDATE_ALWAYS; spin_button->click_child = NULL; spin_button->need_timer = FALSE; spin_button->timer_calls = 0; spin_button->digits = 0; spin_button->numeric = FALSE; spin_button->wrap = FALSE; spin_button->snap_to_ticks = FALSE; spin_button->width_chars = -1; spin_button->orientation = GTK_ORIENTATION_HORIZONTAL; gtk_widget_update_orientation (GTK_WIDGET (spin_button), spin_button->orientation); spin_button->entry = gtk_text_new (); gtk_editable_init_delegate (GTK_EDITABLE (spin_button)); gtk_editable_set_width_chars (GTK_EDITABLE (spin_button->entry), 0); gtk_editable_set_max_width_chars (GTK_EDITABLE (spin_button->entry), 0); gtk_widget_set_hexpand (spin_button->entry, TRUE); gtk_widget_set_vexpand (spin_button->entry, TRUE); g_signal_connect (spin_button->entry, "activate", G_CALLBACK (gtk_spin_button_activate), spin_button); gtk_widget_set_parent (spin_button->entry, GTK_WIDGET (spin_button)); spin_button->down_button = gtk_button_new_from_icon_name ("value-decrease-symbolic"); gtk_widget_add_css_class (spin_button->down_button, "down"); gtk_widget_set_can_focus (spin_button->down_button, FALSE); gtk_widget_set_parent (spin_button->down_button, GTK_WIDGET (spin_button)); gesture = gtk_gesture_click_new (); gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (gesture), 0); gtk_gesture_single_set_touch_only (GTK_GESTURE_SINGLE (gesture), FALSE); gtk_event_controller_set_propagation_phase (GTK_EVENT_CONTROLLER (gesture), GTK_PHASE_CAPTURE); g_signal_connect (gesture, "pressed", G_CALLBACK (button_pressed_cb), spin_button); g_signal_connect (gesture, "released", G_CALLBACK (button_released_cb), spin_button); g_signal_connect (gesture, "cancel", G_CALLBACK (button_cancel_cb), spin_button); gtk_widget_add_controller (GTK_WIDGET (spin_button->down_button), GTK_EVENT_CONTROLLER (gesture)); gtk_gesture_group (gtk_button_get_gesture (GTK_BUTTON (spin_button->down_button)), gesture); spin_button->up_button = gtk_button_new_from_icon_name ("value-increase-symbolic"); gtk_widget_add_css_class (spin_button->up_button, "up"); gtk_widget_set_can_focus (spin_button->up_button, FALSE); gtk_widget_set_parent (spin_button->up_button, GTK_WIDGET (spin_button)); gesture = gtk_gesture_click_new (); gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (gesture), 0); gtk_gesture_single_set_touch_only (GTK_GESTURE_SINGLE (gesture), FALSE); gtk_event_controller_set_propagation_phase (GTK_EVENT_CONTROLLER (gesture), GTK_PHASE_CAPTURE); g_signal_connect (gesture, "pressed", G_CALLBACK (button_pressed_cb), spin_button); g_signal_connect (gesture, "released", G_CALLBACK (button_released_cb), spin_button); g_signal_connect (gesture, "cancel", G_CALLBACK (button_cancel_cb), spin_button); gtk_widget_add_controller (GTK_WIDGET (spin_button->up_button), GTK_EVENT_CONTROLLER (gesture)); gtk_gesture_group (gtk_button_get_gesture (GTK_BUTTON (spin_button->up_button)), gesture); gtk_spin_button_set_adjustment (spin_button, NULL); gesture = gtk_gesture_swipe_new (); gtk_gesture_single_set_touch_only (GTK_GESTURE_SINGLE (gesture), TRUE); gtk_event_controller_set_propagation_phase (GTK_EVENT_CONTROLLER (gesture), GTK_PHASE_CAPTURE); g_signal_connect (gesture, "begin", G_CALLBACK (swipe_gesture_begin), spin_button); g_signal_connect (gesture, "update", G_CALLBACK (swipe_gesture_update), spin_button); gtk_widget_add_controller (GTK_WIDGET (spin_button), GTK_EVENT_CONTROLLER (gesture)); controller = gtk_event_controller_scroll_new (GTK_EVENT_CONTROLLER_SCROLL_VERTICAL | GTK_EVENT_CONTROLLER_SCROLL_DISCRETE); g_signal_connect (controller, "scroll", G_CALLBACK (scroll_controller_scroll), spin_button); gtk_widget_add_controller (GTK_WIDGET (spin_button), controller); controller = gtk_event_controller_key_new (); g_signal_connect (controller, "key-released", G_CALLBACK (key_controller_key_released), spin_button); gtk_widget_add_controller (GTK_WIDGET (spin_button), controller); controller = gtk_event_controller_focus_new (); g_signal_connect (controller, "leave", G_CALLBACK (key_controller_focus_out), spin_button); gtk_widget_add_controller (GTK_WIDGET (spin_button), controller); } static void gtk_spin_button_finalize (GObject *object) { GtkSpinButton *spin_button = GTK_SPIN_BUTTON (object); gtk_spin_button_unset_adjustment (spin_button); gtk_editable_finish_delegate (GTK_EDITABLE (spin_button)); gtk_widget_unparent (spin_button->entry); gtk_widget_unparent (spin_button->up_button); gtk_widget_unparent (spin_button->down_button); G_OBJECT_CLASS (gtk_spin_button_parent_class)->finalize (object); } static void gtk_spin_button_dispose (GObject *object) { gtk_spin_button_stop_spinning (GTK_SPIN_BUTTON (object)); G_OBJECT_CLASS (gtk_spin_button_parent_class)->dispose (object); } static void gtk_spin_button_realize (GtkWidget *widget) { GtkSpinButton *spin_button = GTK_SPIN_BUTTON (widget); gboolean return_val; const char *text; GTK_WIDGET_CLASS (gtk_spin_button_parent_class)->realize (widget); return_val = FALSE; g_signal_emit (spin_button, spinbutton_signals[OUTPUT], 0, &return_val); /* If output wasn't processed explicitly by the method connected to the * 'output' signal; and if we don't have any explicit 'text' set initially, * fallback to the default output. */ text = gtk_editable_get_text (GTK_EDITABLE (spin_button->entry)); if (!return_val && (spin_button->numeric || text == NULL || *text == '\0')) gtk_spin_button_default_output (spin_button); } /* This is called when :value, :wrap, or the bounds of the adjustment change, * as the combination of those determines if our up|down_button are sensitive */ static void update_buttons_sensitivity (GtkSpinButton *spin_button) { const double lower = gtk_adjustment_get_lower (spin_button->adjustment); const double upper = gtk_adjustment_get_upper (spin_button->adjustment); const double value = gtk_adjustment_get_value (spin_button->adjustment); gtk_widget_set_sensitive (spin_button->up_button, spin_button->wrap || upper - value > EPSILON); gtk_widget_set_sensitive (spin_button->down_button, spin_button->wrap || value - lower > EPSILON); } /* Callback used when the spin button's adjustment changes. * We need to reevaluate our size request & up|down_button sensitivity. */ static void adjustment_changed_cb (GtkAdjustment *adjustment, gpointer data) { GtkSpinButton *spin_button = GTK_SPIN_BUTTON (data); spin_button->timer_step = gtk_adjustment_get_step_increment (adjustment); update_buttons_sensitivity (spin_button); gtk_accessible_update_property (GTK_ACCESSIBLE (spin_button), GTK_ACCESSIBLE_PROPERTY_VALUE_MAX, gtk_adjustment_get_upper (adjustment), GTK_ACCESSIBLE_PROPERTY_VALUE_MIN, gtk_adjustment_get_lower (adjustment), GTK_ACCESSIBLE_PROPERTY_VALUE_NOW, gtk_adjustment_get_value (adjustment), -1); gtk_widget_queue_resize (GTK_WIDGET (spin_button)); } static void gtk_spin_button_unset_adjustment (GtkSpinButton *spin_button) { if (spin_button->adjustment) { g_signal_handlers_disconnect_by_func (spin_button->adjustment, gtk_spin_button_value_changed, spin_button); g_signal_handlers_disconnect_by_func (spin_button->adjustment, adjustment_changed_cb, spin_button); g_clear_object (&spin_button->adjustment); } } static void gtk_spin_button_set_orientation (GtkSpinButton *spin, GtkOrientation orientation) { GtkBoxLayout *layout_manager; GtkEditable *editable = GTK_EDITABLE (spin->entry); if (spin->orientation == orientation) return; spin->orientation = orientation; gtk_widget_update_orientation (GTK_WIDGET (spin), spin->orientation); /* change alignment if it's the default */ if (spin->orientation == GTK_ORIENTATION_VERTICAL && gtk_editable_get_alignment (editable) == 0.0) gtk_editable_set_alignment (editable, 0.5); else if (spin->orientation == GTK_ORIENTATION_HORIZONTAL && gtk_editable_get_alignment (editable) == 0.5) gtk_editable_set_alignment (editable, 0.0); if (spin->orientation == GTK_ORIENTATION_HORIZONTAL) { /* Current orientation of the box is vertical! */ gtk_widget_insert_after (spin->up_button, GTK_WIDGET (spin), spin->down_button); } else { /* Current orientation of the box is horizontal! */ gtk_widget_insert_before (spin->up_button, GTK_WIDGET (spin), spin->entry); } layout_manager = GTK_BOX_LAYOUT (gtk_widget_get_layout_manager (GTK_WIDGET (spin))); gtk_orientable_set_orientation (GTK_ORIENTABLE (layout_manager), spin->orientation); g_object_notify (G_OBJECT (spin), "orientation"); } static char * weed_out_neg_zero (char *str, int digits) { if (str[0] == '-') { char neg_zero[8]; g_snprintf (neg_zero, 8, "%0.*f", digits, -0.0); if (strcmp (neg_zero, str) == 0) memmove (str, str + 1, strlen (str)); } return str; } static char * gtk_spin_button_format_for_value (GtkSpinButton *spin_button, double value) { char *buf = g_strdup_printf ("%0.*f", spin_button->digits, value); return weed_out_neg_zero (buf, spin_button->digits); } static void gtk_spin_button_update_width_chars (GtkSpinButton *spin_button) { char *str; double value; int width_chars, c; if (spin_button->width_chars == -1) { width_chars = 0; value = gtk_adjustment_get_lower (spin_button->adjustment); str = gtk_spin_button_format_for_value (spin_button, value); c = g_utf8_strlen (str, -1); g_free (str); width_chars = MAX (width_chars, c); value = gtk_adjustment_get_upper (spin_button->adjustment); str = gtk_spin_button_format_for_value (spin_button, value); c = g_utf8_strlen (str, -1); g_free (str); width_chars = MAX (width_chars, c); width_chars = MIN (width_chars, 10); } else width_chars = spin_button->width_chars; gtk_editable_set_width_chars (GTK_EDITABLE (spin_button->entry), width_chars); } static void gtk_spin_button_state_flags_changed (GtkWidget *widget, GtkStateFlags previous_state) { GtkSpinButton *spin = GTK_SPIN_BUTTON (widget); if (!gtk_widget_is_sensitive (widget)) gtk_spin_button_stop_spinning (spin); GTK_WIDGET_CLASS (gtk_spin_button_parent_class)->state_flags_changed (widget, previous_state); } static int gtk_spin_button_timer (GtkSpinButton *spin_button) { gboolean retval = FALSE; if (spin_button->timer) { if (spin_button->click_child == spin_button->up_button) gtk_spin_button_real_spin (spin_button, spin_button->timer_step); else gtk_spin_button_real_spin (spin_button, -spin_button->timer_step); if (spin_button->need_timer) { spin_button->need_timer = FALSE; spin_button->timer = g_timeout_add (TIMEOUT_REPEAT, (GSourceFunc) gtk_spin_button_timer, spin_button); g_source_set_name_by_id (spin_button->timer, "[gtk] gtk_spin_button_timer"); } else { if (spin_button->climb_rate > 0.0 && spin_button->timer_step < gtk_adjustment_get_page_increment (spin_button->adjustment)) { if (spin_button->timer_calls < MAX_TIMER_CALLS) spin_button->timer_calls++; else { spin_button->timer_calls = 0; spin_button->timer_step += spin_button->climb_rate; } } retval = TRUE; } } return retval; } static void gtk_spin_button_value_changed (GtkAdjustment *adjustment, GtkSpinButton *spin_button) { gboolean return_val; g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment)); return_val = FALSE; g_signal_emit (spin_button, spinbutton_signals[OUTPUT], 0, &return_val); if (return_val == FALSE) gtk_spin_button_default_output (spin_button); g_signal_emit (spin_button, spinbutton_signals[VALUE_CHANGED], 0); gtk_accessible_update_property (GTK_ACCESSIBLE (spin_button), GTK_ACCESSIBLE_PROPERTY_VALUE_NOW, gtk_adjustment_get_value (adjustment), -1); update_buttons_sensitivity (spin_button); g_object_notify_by_pspec (G_OBJECT (spin_button), spinbutton_props[PROP_VALUE]); } static void gtk_spin_button_real_change_value (GtkSpinButton *spin, GtkScrollType scroll) { double old_value; if (!gtk_editable_get_editable (GTK_EDITABLE (spin->entry))) { gtk_widget_error_bell (GTK_WIDGET (spin)); return; } /* When the key binding is activated, there may be an outstanding * value, so we first have to commit what is currently written in * the spin buttons text entry. See #106574 */ gtk_spin_button_update (spin); old_value = gtk_adjustment_get_value (spin->adjustment); switch (scroll) { case GTK_SCROLL_STEP_BACKWARD: case GTK_SCROLL_STEP_DOWN: case GTK_SCROLL_STEP_LEFT: gtk_spin_button_real_spin (spin, -spin->timer_step); if (spin->climb_rate > 0.0 && spin->timer_step < gtk_adjustment_get_page_increment (spin->adjustment)) { if (spin->timer_calls < MAX_TIMER_CALLS) spin->timer_calls++; else { spin->timer_calls = 0; spin->timer_step += spin->climb_rate; } } break; case GTK_SCROLL_STEP_FORWARD: case GTK_SCROLL_STEP_UP: case GTK_SCROLL_STEP_RIGHT: gtk_spin_button_real_spin (spin, spin->timer_step); if (spin->climb_rate > 0.0 && spin->timer_step < gtk_adjustment_get_page_increment (spin->adjustment)) { if (spin->timer_calls < MAX_TIMER_CALLS) spin->timer_calls++; else { spin->timer_calls = 0; spin->timer_step += spin->climb_rate; } } break; case GTK_SCROLL_PAGE_BACKWARD: case GTK_SCROLL_PAGE_DOWN: case GTK_SCROLL_PAGE_LEFT: gtk_spin_button_real_spin (spin, -gtk_adjustment_get_page_increment (spin->adjustment)); break; case GTK_SCROLL_PAGE_FORWARD: case GTK_SCROLL_PAGE_UP: case GTK_SCROLL_PAGE_RIGHT: gtk_spin_button_real_spin (spin, gtk_adjustment_get_page_increment (spin->adjustment)); break; case GTK_SCROLL_START: { double diff = gtk_adjustment_get_value (spin->adjustment) - gtk_adjustment_get_lower (spin->adjustment); if (diff > EPSILON) gtk_spin_button_real_spin (spin, -diff); break; } case GTK_SCROLL_END: { double diff = gtk_adjustment_get_upper (spin->adjustment) - gtk_adjustment_get_value (spin->adjustment); if (diff > EPSILON) gtk_spin_button_real_spin (spin, diff); break; } case GTK_SCROLL_NONE: case GTK_SCROLL_JUMP: default: g_warning ("Invalid scroll type %d for GtkSpinButton::change-value", scroll); break; } gtk_spin_button_update (spin); if (gtk_adjustment_get_value (spin->adjustment) == old_value) gtk_widget_error_bell (GTK_WIDGET (spin)); } static void gtk_spin_button_snap (GtkSpinButton *spin_button, double val) { double inc; double tmp; inc = gtk_adjustment_get_step_increment (spin_button->adjustment); if (inc == 0) return; tmp = (val - gtk_adjustment_get_lower (spin_button->adjustment)) / inc; if (tmp - floor (tmp) < ceil (tmp) - tmp) val = gtk_adjustment_get_lower (spin_button->adjustment) + floor (tmp) * inc; else val = gtk_adjustment_get_lower (spin_button->adjustment) + ceil (tmp) * inc; gtk_spin_button_set_value (spin_button, val); } static void gtk_spin_button_activate (GtkText *entry, gpointer user_data) { GtkSpinButton *spin_button = user_data; if (gtk_editable_get_editable (GTK_EDITABLE (spin_button->entry))) gtk_spin_button_update (spin_button); } static void gtk_spin_button_insert_text (GtkEditable *editable, const char *new_text, int new_text_length, int *position) { GtkSpinButton *spin = GTK_SPIN_BUTTON (editable); if (spin->numeric) { struct lconv *lc; gboolean sign; int dotpos = -1; int i; guint32 pos_sign; guint32 neg_sign; int entry_length; const char *entry_text; entry_text = gtk_editable_get_text (GTK_EDITABLE (spin->entry)); entry_length = g_utf8_strlen (entry_text, -1); lc = localeconv (); if (*(lc->negative_sign)) neg_sign = *(lc->negative_sign); else neg_sign = '-'; if (*(lc->positive_sign)) pos_sign = *(lc->positive_sign); else pos_sign = '+'; #ifdef G_OS_WIN32 /* Workaround for bug caused by some Windows application messing * up the positive sign of the current locale, more specifically * HKEY_CURRENT_USER\Control Panel\International\sPositiveSign. * See bug #330743 and for instance * http://www.msnewsgroups.net/group/microsoft.public.dotnet.languages.csharp/topic36024.aspx * * I don't know if the positive sign always gets bogusly set to * a digit when the above Registry value is corrupted as * described. (In my test case, it got set to "8", and in the * bug report above it presumably was set to "0".) Probably it * might get set to almost anything? So how to distinguish a * bogus value from some correct one for some locale? That is * probably hard, but at least we should filter out the * digits... */ if (pos_sign >= '0' && pos_sign <= '9') pos_sign = '+'; #endif for (sign = 0, i = 0; idecimal_point)) { dotpos = i; break; } if (dotpos > -1 && *position > dotpos && (int)spin->digits - entry_length + dotpos - new_text_length + 1 < 0) return; for (i = 0; i < new_text_length; i++) { if (new_text[i] == neg_sign || new_text[i] == pos_sign) { if (sign || (*position) || i) return; sign = TRUE; } else if (new_text[i] == *(lc->decimal_point)) { if (!spin->digits || dotpos > -1 || (new_text_length - 1 - i + entry_length - *position > (int)spin->digits)) return; dotpos = *position + i; } else if (new_text[i] < 0x30 || new_text[i] > 0x39) return; } } gtk_editable_insert_text (GTK_EDITABLE (spin->entry), new_text, new_text_length, position); } static void gtk_spin_button_real_spin (GtkSpinButton *spin_button, double increment) { GtkAdjustment *adjustment; double new_value = 0.0; gboolean wrapped = FALSE; adjustment = spin_button->adjustment; new_value = gtk_adjustment_get_value (adjustment) + increment; if (increment > 0) { if (spin_button->wrap) { if (fabs (gtk_adjustment_get_value (adjustment) - gtk_adjustment_get_upper (adjustment)) < EPSILON) { new_value = gtk_adjustment_get_lower (adjustment); wrapped = TRUE; } else if (new_value > gtk_adjustment_get_upper (adjustment)) new_value = gtk_adjustment_get_upper (adjustment); } else new_value = MIN (new_value, gtk_adjustment_get_upper (adjustment)); } else if (increment < 0) { if (spin_button->wrap) { if (fabs (gtk_adjustment_get_value (adjustment) - gtk_adjustment_get_lower (adjustment)) < EPSILON) { new_value = gtk_adjustment_get_upper (adjustment); wrapped = TRUE; } else if (new_value < gtk_adjustment_get_lower (adjustment)) new_value = gtk_adjustment_get_lower (adjustment); } else new_value = MAX (new_value, gtk_adjustment_get_lower (adjustment)); } if (fabs (new_value - gtk_adjustment_get_value (adjustment)) > EPSILON) gtk_adjustment_set_value (adjustment, new_value); if (wrapped) g_signal_emit (spin_button, spinbutton_signals[WRAPPED], 0); } static int gtk_spin_button_default_input (GtkSpinButton *spin_button, double *new_val) { char *err = NULL; const char *text = gtk_editable_get_text (GTK_EDITABLE (spin_button->entry)); *new_val = g_strtod (text, &err); if (*err) return GTK_INPUT_ERROR; else return FALSE; } static void gtk_spin_button_default_output (GtkSpinButton *spin_button) { char *buf = gtk_spin_button_format_for_value (spin_button, gtk_adjustment_get_value (spin_button->adjustment)); if (strcmp (buf, gtk_editable_get_text (GTK_EDITABLE (spin_button->entry)))) gtk_editable_set_text (GTK_EDITABLE (spin_button->entry), buf); g_free (buf); } /*********************************************************** *********************************************************** *** Public interface *** *********************************************************** ***********************************************************/ /** * gtk_spin_button_configure: * @spin_button: a #GtkSpinButton * @adjustment: (nullable): a #GtkAdjustment to replace the spin button’s * existing adjustment, or %NULL to leave its current adjustment unchanged * @climb_rate: the new climb rate * @digits: the number of decimal places to display in the spin button * * Changes the properties of an existing spin button. The adjustment, * climb rate, and number of decimal places are updated accordingly. */ void gtk_spin_button_configure (GtkSpinButton *spin_button, GtkAdjustment *adjustment, double climb_rate, guint digits) { g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button)); if (!adjustment) adjustment = spin_button->adjustment; g_object_freeze_notify (G_OBJECT (spin_button)); if (spin_button->adjustment != adjustment) { gtk_spin_button_unset_adjustment (spin_button); spin_button->adjustment = adjustment; g_object_ref_sink (adjustment); g_signal_connect (adjustment, "value-changed", G_CALLBACK (gtk_spin_button_value_changed), spin_button); g_signal_connect (adjustment, "changed", G_CALLBACK (adjustment_changed_cb), spin_button); spin_button->timer_step = gtk_adjustment_get_step_increment (spin_button->adjustment); g_object_notify_by_pspec (G_OBJECT (spin_button), spinbutton_props[PROP_ADJUSTMENT]); gtk_widget_queue_resize (GTK_WIDGET (spin_button)); } if (spin_button->digits != digits) { spin_button->digits = digits; g_object_notify_by_pspec (G_OBJECT (spin_button), spinbutton_props[PROP_DIGITS]); } if (spin_button->climb_rate != climb_rate) { spin_button->climb_rate = climb_rate; g_object_notify_by_pspec (G_OBJECT (spin_button), spinbutton_props[PROP_CLIMB_RATE]); } gtk_spin_button_update_width_chars (spin_button); g_object_thaw_notify (G_OBJECT (spin_button)); gtk_accessible_update_property (GTK_ACCESSIBLE (spin_button), GTK_ACCESSIBLE_PROPERTY_VALUE_MAX, gtk_adjustment_get_upper (adjustment), GTK_ACCESSIBLE_PROPERTY_VALUE_MIN, gtk_adjustment_get_lower (adjustment), GTK_ACCESSIBLE_PROPERTY_VALUE_NOW, gtk_adjustment_get_value (adjustment), -1); gtk_spin_button_value_changed (adjustment, spin_button); } /** * gtk_spin_button_new: * @adjustment: (allow-none): the #GtkAdjustment object that this spin * button should use, or %NULL * @climb_rate: specifies by how much the rate of change in the value will * accelerate if you continue to hold down an up/down button or arrow key * @digits: the number of decimal places to display * * Creates a new #GtkSpinButton. * * Returns: The new spin button as a #GtkWidget */ GtkWidget * gtk_spin_button_new (GtkAdjustment *adjustment, double climb_rate, guint digits) { GtkSpinButton *spin; if (adjustment) g_return_val_if_fail (GTK_IS_ADJUSTMENT (adjustment), NULL); spin = g_object_new (GTK_TYPE_SPIN_BUTTON, NULL); gtk_spin_button_configure (spin, adjustment, climb_rate, digits); return GTK_WIDGET (spin); } /** * gtk_spin_button_new_with_range: * @min: Minimum allowable value * @max: Maximum allowable value * @step: Increment added or subtracted by spinning the widget * * This is a convenience constructor that allows creation of a numeric * #GtkSpinButton without manually creating an adjustment. The value is * initially set to the minimum value and a page increment of 10 * @step * is the default. The precision of the spin button is equivalent to the * precision of @step. * * Note that the way in which the precision is derived works best if @step * is a power of ten. If the resulting precision is not suitable for your * needs, use gtk_spin_button_set_digits() to correct it. * * Returns: The new spin button as a #GtkWidget */ GtkWidget * gtk_spin_button_new_with_range (double min, double max, double step) { GtkAdjustment *adjustment; GtkSpinButton *spin; int digits; g_return_val_if_fail (min <= max, NULL); g_return_val_if_fail (step != 0.0, NULL); spin = g_object_new (GTK_TYPE_SPIN_BUTTON, NULL); adjustment = gtk_adjustment_new (min, min, max, step, 10 * step, 0); if (fabs (step) >= 1.0 || step == 0.0) digits = 0; else { digits = abs ((int) floor (log10 (fabs (step)))); if (digits > MAX_DIGITS) digits = MAX_DIGITS; } gtk_spin_button_configure (spin, adjustment, step, digits); gtk_spin_button_set_numeric (spin, TRUE); return GTK_WIDGET (spin); } /** * gtk_spin_button_set_adjustment: * @spin_button: a #GtkSpinButton * @adjustment: a #GtkAdjustment to replace the existing adjustment * * Replaces the #GtkAdjustment associated with @spin_button. */ void gtk_spin_button_set_adjustment (GtkSpinButton *spin_button, GtkAdjustment *adjustment) { g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button)); if (!adjustment) adjustment = gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0); gtk_spin_button_configure (spin_button, adjustment, spin_button->climb_rate, spin_button->digits); } /** * gtk_spin_button_get_adjustment: * @spin_button: a #GtkSpinButton * * Get the adjustment associated with a #GtkSpinButton * * Returns: (transfer none): the #GtkAdjustment of @spin_button **/ GtkAdjustment * gtk_spin_button_get_adjustment (GtkSpinButton *spin_button) { g_return_val_if_fail (GTK_IS_SPIN_BUTTON (spin_button), NULL); return spin_button->adjustment; } /** * gtk_spin_button_set_digits: * @spin_button: a #GtkSpinButton * @digits: the number of digits after the decimal point to be displayed for the spin button’s value * * Set the precision to be displayed by @spin_button. Up to 20 digit precision * is allowed. **/ void gtk_spin_button_set_digits (GtkSpinButton *spin_button, guint digits) { g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button)); if (spin_button->digits != digits) { spin_button->digits = digits; gtk_spin_button_value_changed (spin_button->adjustment, spin_button); g_object_notify_by_pspec (G_OBJECT (spin_button), spinbutton_props[PROP_DIGITS]); /* since lower/upper may have changed */ gtk_widget_queue_resize (GTK_WIDGET (spin_button)); } } /** * gtk_spin_button_get_digits: * @spin_button: a #GtkSpinButton * * Fetches the precision of @spin_button. See gtk_spin_button_set_digits(). * * Returns: the current precision **/ guint gtk_spin_button_get_digits (GtkSpinButton *spin_button) { g_return_val_if_fail (GTK_IS_SPIN_BUTTON (spin_button), 0); return spin_button->digits; } /** * gtk_spin_button_set_increments: * @spin_button: a #GtkSpinButton * @step: increment applied for a button 1 press. * @page: increment applied for a button 2 press. * * Sets the step and page increments for spin_button. This affects how * quickly the value changes when the spin button’s arrows are activated. **/ void gtk_spin_button_set_increments (GtkSpinButton *spin_button, double step, double page) { g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button)); gtk_adjustment_configure (spin_button->adjustment, gtk_adjustment_get_value (spin_button->adjustment), gtk_adjustment_get_lower (spin_button->adjustment), gtk_adjustment_get_upper (spin_button->adjustment), step, page, gtk_adjustment_get_page_size (spin_button->adjustment)); } /** * gtk_spin_button_get_increments: * @spin_button: a #GtkSpinButton * @step: (out) (allow-none): location to store step increment, or %NULL * @page: (out) (allow-none): location to store page increment, or %NULL * * Gets the current step and page the increments used by @spin_button. See * gtk_spin_button_set_increments(). **/ void gtk_spin_button_get_increments (GtkSpinButton *spin_button, double *step, double *page) { g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button)); if (step) *step = gtk_adjustment_get_step_increment (spin_button->adjustment); if (page) *page = gtk_adjustment_get_page_increment (spin_button->adjustment); } /** * gtk_spin_button_set_range: * @spin_button: a #GtkSpinButton * @min: minimum allowable value * @max: maximum allowable value * * Sets the minimum and maximum allowable values for @spin_button. * * If the current value is outside this range, it will be adjusted * to fit within the range, otherwise it will remain unchanged. */ void gtk_spin_button_set_range (GtkSpinButton *spin_button, double min, double max) { GtkAdjustment *adjustment; g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button)); adjustment = spin_button->adjustment; gtk_adjustment_configure (adjustment, CLAMP (gtk_adjustment_get_value (adjustment), min, max), min, max, gtk_adjustment_get_step_increment (adjustment), gtk_adjustment_get_page_increment (adjustment), gtk_adjustment_get_page_size (adjustment)); } /** * gtk_spin_button_get_range: * @spin_button: a #GtkSpinButton * @min: (out) (optional): location to store minimum allowed value, or %NULL * @max: (out) (optional): location to store maximum allowed value, or %NULL * * Gets the range allowed for @spin_button. * See gtk_spin_button_set_range(). */ void gtk_spin_button_get_range (GtkSpinButton *spin_button, double *min, double *max) { g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button)); if (min) *min = gtk_adjustment_get_lower (spin_button->adjustment); if (max) *max = gtk_adjustment_get_upper (spin_button->adjustment); } /** * gtk_spin_button_get_value: * @spin_button: a #GtkSpinButton * * Get the value in the @spin_button. * * Returns: the value of @spin_button */ double gtk_spin_button_get_value (GtkSpinButton *spin_button) { g_return_val_if_fail (GTK_IS_SPIN_BUTTON (spin_button), 0.0); return gtk_adjustment_get_value (spin_button->adjustment); } /** * gtk_spin_button_get_value_as_int: * @spin_button: a #GtkSpinButton * * Get the value @spin_button represented as an integer. * * Returns: the value of @spin_button */ int gtk_spin_button_get_value_as_int (GtkSpinButton *spin_button) { double val; g_return_val_if_fail (GTK_IS_SPIN_BUTTON (spin_button), 0); val = gtk_adjustment_get_value (spin_button->adjustment); if (val - floor (val) < ceil (val) - val) return floor (val); else return ceil (val); } /** * gtk_spin_button_set_value: * @spin_button: a #GtkSpinButton * @value: the new value * * Sets the value of @spin_button. */ void gtk_spin_button_set_value (GtkSpinButton *spin_button, double value) { g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button)); if (fabs (value - gtk_adjustment_get_value (spin_button->adjustment)) > EPSILON) gtk_adjustment_set_value (spin_button->adjustment, value); else { int return_val = FALSE; g_signal_emit (spin_button, spinbutton_signals[OUTPUT], 0, &return_val); if (!return_val) gtk_spin_button_default_output (spin_button); } } /** * gtk_spin_button_set_update_policy: * @spin_button: a #GtkSpinButton * @policy: a #GtkSpinButtonUpdatePolicy value * * Sets the update behavior of a spin button. * This determines whether the spin button is always updated * or only when a valid value is set. */ void gtk_spin_button_set_update_policy (GtkSpinButton *spin_button, GtkSpinButtonUpdatePolicy policy) { g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button)); if (spin_button->update_policy != policy) { spin_button->update_policy = policy; g_object_notify_by_pspec (G_OBJECT (spin_button), spinbutton_props[PROP_UPDATE_POLICY]); } } /** * gtk_spin_button_get_update_policy: * @spin_button: a #GtkSpinButton * * Gets the update behavior of a spin button. * See gtk_spin_button_set_update_policy(). * * Returns: the current update policy */ GtkSpinButtonUpdatePolicy gtk_spin_button_get_update_policy (GtkSpinButton *spin_button) { g_return_val_if_fail (GTK_IS_SPIN_BUTTON (spin_button), GTK_UPDATE_ALWAYS); return spin_button->update_policy; } /** * gtk_spin_button_set_numeric: * @spin_button: a #GtkSpinButton * @numeric: flag indicating if only numeric entry is allowed * * Sets the flag that determines if non-numeric text can be typed * into the spin button. */ void gtk_spin_button_set_numeric (GtkSpinButton *spin_button, gboolean numeric) { g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button)); numeric = numeric != FALSE; if (spin_button->numeric != numeric) { spin_button->numeric = numeric; g_object_notify_by_pspec (G_OBJECT (spin_button), spinbutton_props[PROP_NUMERIC]); } } /** * gtk_spin_button_get_numeric: * @spin_button: a #GtkSpinButton * * Returns whether non-numeric text can be typed into the spin button. * See gtk_spin_button_set_numeric(). * * Returns: %TRUE if only numeric text can be entered */ gboolean gtk_spin_button_get_numeric (GtkSpinButton *spin_button) { g_return_val_if_fail (GTK_IS_SPIN_BUTTON (spin_button), FALSE); return spin_button->numeric; } /** * gtk_spin_button_set_wrap: * @spin_button: a #GtkSpinButton * @wrap: a flag indicating if wrapping behavior is performed * * Sets the flag that determines if a spin button value wraps * around to the opposite limit when the upper or lower limit * of the range is exceeded. */ void gtk_spin_button_set_wrap (GtkSpinButton *spin_button, gboolean wrap) { g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button)); wrap = wrap != FALSE; if (spin_button->wrap != wrap) { spin_button->wrap = wrap; g_object_notify_by_pspec (G_OBJECT (spin_button), spinbutton_props[PROP_WRAP]); update_buttons_sensitivity (spin_button); } } /** * gtk_spin_button_get_wrap: * @spin_button: a #GtkSpinButton * * Returns whether the spin button’s value wraps around to the * opposite limit when the upper or lower limit of the range is * exceeded. See gtk_spin_button_set_wrap(). * * Returns: %TRUE if the spin button wraps around */ gboolean gtk_spin_button_get_wrap (GtkSpinButton *spin_button) { g_return_val_if_fail (GTK_IS_SPIN_BUTTON (spin_button), FALSE); return spin_button->wrap; } /** * gtk_spin_button_set_snap_to_ticks: * @spin_button: a #GtkSpinButton * @snap_to_ticks: a flag indicating if invalid values should be corrected * * Sets the policy as to whether values are corrected to the * nearest step increment when a spin button is activated after * providing an invalid value. */ void gtk_spin_button_set_snap_to_ticks (GtkSpinButton *spin_button, gboolean snap_to_ticks) { guint new_val; g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button)); new_val = (snap_to_ticks != 0); if (new_val != spin_button->snap_to_ticks) { spin_button->snap_to_ticks = new_val; if (new_val && gtk_editable_get_editable (GTK_EDITABLE (spin_button->entry))) gtk_spin_button_update (spin_button); g_object_notify_by_pspec (G_OBJECT (spin_button), spinbutton_props[PROP_SNAP_TO_TICKS]); } } /** * gtk_spin_button_get_snap_to_ticks: * @spin_button: a #GtkSpinButton * * Returns whether the values are corrected to the nearest step. * See gtk_spin_button_set_snap_to_ticks(). * * Returns: %TRUE if values are snapped to the nearest step */ gboolean gtk_spin_button_get_snap_to_ticks (GtkSpinButton *spin_button) { g_return_val_if_fail (GTK_IS_SPIN_BUTTON (spin_button), FALSE); return spin_button->snap_to_ticks; } /** * gtk_spin_button_set_climb_rate: * @spin_button: a #GtkSpinButton * @climb_rate: the rate of acceleration, must be >= 0 * * Sets the acceleration rate for repeated changes when you * hold down a button or key. */ void gtk_spin_button_set_climb_rate (GtkSpinButton *spin_button, double climb_rate) { g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button)); g_return_if_fail (0.0 <= climb_rate); if (spin_button->climb_rate == climb_rate) return; spin_button->climb_rate = climb_rate; g_object_notify_by_pspec (G_OBJECT (spin_button), spinbutton_props[PROP_CLIMB_RATE]); } /** * gtk_spin_button_get_climb_rate: * @spin_button: a #GtkSpinButton * * Returns the acceleration rate for repeated changes. * * Returns: the acceleration rate */ double gtk_spin_button_get_climb_rate (GtkSpinButton *spin_button) { g_return_val_if_fail (GTK_IS_SPIN_BUTTON (spin_button), 0.0); return spin_button->climb_rate; } /** * gtk_spin_button_spin: * @spin_button: a #GtkSpinButton * @direction: a #GtkSpinType indicating the direction to spin * @increment: step increment to apply in the specified direction * * Increment or decrement a spin button’s value in a specified * direction by a specified amount. */ void gtk_spin_button_spin (GtkSpinButton *spin_button, GtkSpinType direction, double increment) { GtkAdjustment *adjustment; double diff; g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button)); adjustment = spin_button->adjustment; /* for compatibility with the 1.0.x version of this function */ if (increment != 0 && increment != gtk_adjustment_get_step_increment (adjustment) && (direction == GTK_SPIN_STEP_FORWARD || direction == GTK_SPIN_STEP_BACKWARD)) { if (direction == GTK_SPIN_STEP_BACKWARD && increment > 0) increment = -increment; direction = GTK_SPIN_USER_DEFINED; } switch (direction) { case GTK_SPIN_STEP_FORWARD: gtk_spin_button_real_spin (spin_button, gtk_adjustment_get_step_increment (adjustment)); break; case GTK_SPIN_STEP_BACKWARD: gtk_spin_button_real_spin (spin_button, -gtk_adjustment_get_step_increment (adjustment)); break; case GTK_SPIN_PAGE_FORWARD: gtk_spin_button_real_spin (spin_button, gtk_adjustment_get_page_increment (adjustment)); break; case GTK_SPIN_PAGE_BACKWARD: gtk_spin_button_real_spin (spin_button, -gtk_adjustment_get_page_increment (adjustment)); break; case GTK_SPIN_HOME: diff = gtk_adjustment_get_value (adjustment) - gtk_adjustment_get_lower (adjustment); if (diff > EPSILON) gtk_spin_button_real_spin (spin_button, -diff); break; case GTK_SPIN_END: diff = gtk_adjustment_get_upper (adjustment) - gtk_adjustment_get_value (adjustment); if (diff > EPSILON) gtk_spin_button_real_spin (spin_button, diff); break; case GTK_SPIN_USER_DEFINED: if (increment != 0) gtk_spin_button_real_spin (spin_button, increment); break; default: break; } } /** * gtk_spin_button_update: * @spin_button: a #GtkSpinButton * * Manually force an update of the spin button. */ void gtk_spin_button_update (GtkSpinButton *spin_button) { double val; int error = 0; int return_val; g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button)); return_val = FALSE; g_signal_emit (spin_button, spinbutton_signals[INPUT], 0, &val, &return_val); if (return_val == FALSE) { return_val = gtk_spin_button_default_input (spin_button, &val); error = (return_val == GTK_INPUT_ERROR); } else if (return_val == GTK_INPUT_ERROR) error = 1; if (spin_button->update_policy == GTK_UPDATE_ALWAYS) { if (val < gtk_adjustment_get_lower (spin_button->adjustment)) val = gtk_adjustment_get_lower (spin_button->adjustment); else if (val > gtk_adjustment_get_upper (spin_button->adjustment)) val = gtk_adjustment_get_upper (spin_button->adjustment); } else if ((spin_button->update_policy == GTK_UPDATE_IF_VALID) && (error || val < gtk_adjustment_get_lower (spin_button->adjustment) || val > gtk_adjustment_get_upper (spin_button->adjustment))) { gtk_spin_button_value_changed (spin_button->adjustment, spin_button); return; } if (spin_button->snap_to_ticks) gtk_spin_button_snap (spin_button, val); else gtk_spin_button_set_value (spin_button, val); }