/* 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 Library 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 * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #include #include #include #include #include #include "gdk/gdkkeysyms.h" #include "gtkspinbutton.h" #include "gtkmain.h" #include "gtksignal.h" #define MIN_SPIN_BUTTON_WIDTH 30 #define ARROW_SIZE 11 #define SPIN_BUTTON_INITIAL_TIMER_DELAY 200 #define SPIN_BUTTON_TIMER_DELAY 20 #define MAX_TEXT_LENGTH 256 #define MAX_TIMER_CALLS 5 #define EPSILON 1e-5 enum { ARG_0, ARG_ADJUSTMENT, ARG_CLIMB_RATE, ARG_DIGITS, ARG_SNAP_TO_TICKS, ARG_NUMERIC, ARG_WRAP, ARG_UPDATE_POLICY, ARG_SHADOW_TYPE, ARG_VALUE }; static void gtk_spin_button_class_init (GtkSpinButtonClass *klass); static void gtk_spin_button_init (GtkSpinButton *spin_button); static void gtk_spin_button_finalize (GtkObject *object); static void gtk_spin_button_set_arg (GtkObject *object, GtkArg *arg, guint arg_id); static void gtk_spin_button_get_arg (GtkObject *object, GtkArg *arg, guint arg_id); static void gtk_spin_button_map (GtkWidget *widget); static void gtk_spin_button_unmap (GtkWidget *widget); static void gtk_spin_button_realize (GtkWidget *widget); static void gtk_spin_button_unrealize (GtkWidget *widget); static void gtk_spin_button_size_request (GtkWidget *widget, GtkRequisition *requisition); static void gtk_spin_button_size_allocate (GtkWidget *widget, GtkAllocation *allocation); static void gtk_spin_button_paint (GtkWidget *widget, GdkRectangle *area); static void gtk_spin_button_draw (GtkWidget *widget, GdkRectangle *area); static gint gtk_spin_button_expose (GtkWidget *widget, GdkEventExpose *event); static gint gtk_spin_button_button_press (GtkWidget *widget, GdkEventButton *event); static gint gtk_spin_button_button_release (GtkWidget *widget, GdkEventButton *event); static gint gtk_spin_button_motion_notify (GtkWidget *widget, GdkEventMotion *event); static gint gtk_spin_button_enter_notify (GtkWidget *widget, GdkEventCrossing *event); static gint gtk_spin_button_leave_notify (GtkWidget *widget, GdkEventCrossing *event); static gint gtk_spin_button_focus_out (GtkWidget *widget, GdkEventFocus *event); static void gtk_spin_button_draw_arrow (GtkSpinButton *spin_button, guint arrow); static gint gtk_spin_button_timer (GtkSpinButton *spin_button); static void gtk_spin_button_value_changed (GtkAdjustment *adjustment, GtkSpinButton *spin_button); static gint gtk_spin_button_key_press (GtkWidget *widget, GdkEventKey *event); static gint gtk_spin_button_key_release (GtkWidget *widget, GdkEventKey *event); static void gtk_spin_button_update (GtkSpinButton *spin_button); static void gtk_spin_button_activate (GtkEditable *editable); static void gtk_spin_button_snap (GtkSpinButton *spin_button, gfloat val); static void gtk_spin_button_insert_text (GtkEditable *editable, const gchar *new_text, gint new_text_length, gint *position); static void gtk_spin_button_real_spin (GtkSpinButton *spin_button, gfloat step); static GtkEntryClass *parent_class = NULL; GtkType gtk_spin_button_get_type (void) { static guint spin_button_type = 0; if (!spin_button_type) { GtkTypeInfo spin_button_info = { "GtkSpinButton", sizeof (GtkSpinButton), sizeof (GtkSpinButtonClass), (GtkClassInitFunc) gtk_spin_button_class_init, (GtkObjectInitFunc) gtk_spin_button_init, /* reserved_1 */ NULL, /* reserved_2 */ NULL, (GtkClassInitFunc) NULL, }; spin_button_type = gtk_type_unique (GTK_TYPE_ENTRY, &spin_button_info); } return spin_button_type; } static void gtk_spin_button_class_init (GtkSpinButtonClass *class) { GtkObjectClass *object_class; GtkWidgetClass *widget_class; GtkEditableClass *editable_class; object_class = (GtkObjectClass*) class; widget_class = (GtkWidgetClass*) class; editable_class = (GtkEditableClass*) class; parent_class = gtk_type_class (GTK_TYPE_ENTRY); gtk_object_add_arg_type ("GtkSpinButton::adjustment", GTK_TYPE_ADJUSTMENT, GTK_ARG_READWRITE, ARG_ADJUSTMENT); gtk_object_add_arg_type ("GtkSpinButton::climb_rate", GTK_TYPE_FLOAT, GTK_ARG_READWRITE, ARG_CLIMB_RATE); gtk_object_add_arg_type ("GtkSpinButton::digits", GTK_TYPE_UINT, GTK_ARG_READWRITE, ARG_DIGITS); gtk_object_add_arg_type ("GtkSpinButton::snap_to_ticks", GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_SNAP_TO_TICKS); gtk_object_add_arg_type ("GtkSpinButton::numeric", GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_NUMERIC); gtk_object_add_arg_type ("GtkSpinButton::wrap", GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_WRAP); gtk_object_add_arg_type ("GtkSpinButton::update_policy", GTK_TYPE_SPIN_BUTTON_UPDATE_POLICY, GTK_ARG_READWRITE, ARG_UPDATE_POLICY); gtk_object_add_arg_type ("GtkSpinButton::shadow_type", GTK_TYPE_SHADOW_TYPE, GTK_ARG_READWRITE, ARG_SHADOW_TYPE); gtk_object_add_arg_type ("GtkSpinButton::value", GTK_TYPE_FLOAT, GTK_ARG_READWRITE, ARG_VALUE); object_class->set_arg = gtk_spin_button_set_arg; object_class->get_arg = gtk_spin_button_get_arg; object_class->finalize = gtk_spin_button_finalize; widget_class->map = gtk_spin_button_map; widget_class->unmap = gtk_spin_button_unmap; widget_class->realize = gtk_spin_button_realize; widget_class->unrealize = gtk_spin_button_unrealize; widget_class->size_request = gtk_spin_button_size_request; widget_class->size_allocate = gtk_spin_button_size_allocate; widget_class->draw = gtk_spin_button_draw; widget_class->expose_event = gtk_spin_button_expose; widget_class->button_press_event = gtk_spin_button_button_press; widget_class->button_release_event = gtk_spin_button_button_release; widget_class->motion_notify_event = gtk_spin_button_motion_notify; widget_class->key_press_event = gtk_spin_button_key_press; widget_class->key_release_event = gtk_spin_button_key_release; widget_class->enter_notify_event = gtk_spin_button_enter_notify; widget_class->leave_notify_event = gtk_spin_button_leave_notify; widget_class->focus_out_event = gtk_spin_button_focus_out; editable_class->insert_text = gtk_spin_button_insert_text; editable_class->activate = gtk_spin_button_activate; } static void gtk_spin_button_set_arg (GtkObject *object, GtkArg *arg, guint arg_id) { GtkSpinButton *spin_button; spin_button = GTK_SPIN_BUTTON (object); switch (arg_id) { GtkAdjustment *adjustment; case ARG_ADJUSTMENT: adjustment = GTK_VALUE_POINTER (*arg); if (!adjustment) adjustment = (GtkAdjustment*) gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0); gtk_spin_button_set_adjustment (spin_button, adjustment); break; case ARG_CLIMB_RATE: gtk_spin_button_configure (spin_button, spin_button->adjustment, GTK_VALUE_FLOAT (*arg), spin_button->digits); break; case ARG_DIGITS: gtk_spin_button_configure (spin_button, spin_button->adjustment, spin_button->climb_rate, GTK_VALUE_UINT (*arg)); break; case ARG_SNAP_TO_TICKS: gtk_spin_button_set_snap_to_ticks (spin_button, GTK_VALUE_BOOL (*arg)); break; case ARG_NUMERIC: gtk_spin_button_set_numeric (spin_button, GTK_VALUE_BOOL (*arg)); break; case ARG_WRAP: gtk_spin_button_set_wrap (spin_button, GTK_VALUE_BOOL (*arg)); break; case ARG_UPDATE_POLICY: gtk_spin_button_set_update_policy (spin_button, GTK_VALUE_ENUM (*arg)); break; case ARG_SHADOW_TYPE: gtk_spin_button_set_shadow_type (spin_button, GTK_VALUE_ENUM (*arg)); break; case ARG_VALUE: gtk_spin_button_set_value (spin_button, GTK_VALUE_FLOAT (*arg)); break; default: break; } } static void gtk_spin_button_get_arg (GtkObject *object, GtkArg *arg, guint arg_id) { GtkSpinButton *spin_button; spin_button = GTK_SPIN_BUTTON (object); switch (arg_id) { case ARG_ADJUSTMENT: GTK_VALUE_POINTER (*arg) = spin_button->adjustment; break; case ARG_CLIMB_RATE: GTK_VALUE_FLOAT (*arg) = spin_button->climb_rate; break; case ARG_DIGITS: GTK_VALUE_UINT (*arg) = spin_button->digits; break; case ARG_SNAP_TO_TICKS: GTK_VALUE_BOOL (*arg) = spin_button->snap_to_ticks; break; case ARG_NUMERIC: GTK_VALUE_BOOL (*arg) = spin_button->numeric; break; case ARG_WRAP: GTK_VALUE_BOOL (*arg) = spin_button->wrap; break; case ARG_UPDATE_POLICY: GTK_VALUE_ENUM (*arg) = spin_button->update_policy; break; case ARG_SHADOW_TYPE: GTK_VALUE_ENUM (*arg) = spin_button->shadow_type; break; case ARG_VALUE: GTK_VALUE_FLOAT (*arg) = spin_button->adjustment->value; break; default: arg->type = GTK_TYPE_INVALID; break; } } static void gtk_spin_button_init (GtkSpinButton *spin_button) { spin_button->adjustment = NULL; spin_button->panel = NULL; spin_button->shadow_type = GTK_SHADOW_NONE; spin_button->timer = 0; spin_button->ev_time = 0; spin_button->climb_rate = 0.0; spin_button->timer_step = 0.0; spin_button->update_policy = GTK_UPDATE_ALWAYS; spin_button->in_child = 2; spin_button->click_child = 2; spin_button->button = 0; 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; gtk_spin_button_set_adjustment (spin_button, (GtkAdjustment*) gtk_adjustment_new (0, 0, 0, 0, 0, 0)); } static void gtk_spin_button_finalize (GtkObject *object) { g_return_if_fail (object != NULL); g_return_if_fail (GTK_IS_SPIN_BUTTON (object)); gtk_object_unref (GTK_OBJECT (GTK_SPIN_BUTTON (object)->adjustment)); GTK_OBJECT_CLASS (parent_class)->finalize (object); } static void gtk_spin_button_map (GtkWidget *widget) { g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_SPIN_BUTTON (widget)); if (GTK_WIDGET_REALIZED (widget) && !GTK_WIDGET_MAPPED (widget)) { GTK_WIDGET_CLASS (parent_class)->map (widget); gdk_window_show (GTK_SPIN_BUTTON (widget)->panel); } } static void gtk_spin_button_unmap (GtkWidget *widget) { g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_SPIN_BUTTON (widget)); if (GTK_WIDGET_MAPPED (widget)) { gdk_window_hide (GTK_SPIN_BUTTON (widget)->panel); GTK_WIDGET_CLASS (parent_class)->unmap (widget); } } static void gtk_spin_button_realize (GtkWidget *widget) { GtkSpinButton *spin; GdkWindowAttr attributes; gint attributes_mask; guint real_width; g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_SPIN_BUTTON (widget)); spin = GTK_SPIN_BUTTON (widget); real_width = widget->allocation.width; widget->allocation.width -= ARROW_SIZE + 2 * widget->style->klass->xthickness; gtk_widget_set_events (widget, gtk_widget_get_events (widget) | GDK_KEY_RELEASE_MASK); GTK_WIDGET_CLASS (parent_class)->realize (widget); widget->allocation.width = real_width; attributes.window_type = GDK_WINDOW_CHILD; attributes.wclass = GDK_INPUT_OUTPUT; attributes.visual = gtk_widget_get_visual (widget); attributes.colormap = gtk_widget_get_colormap (widget); attributes.event_mask = gtk_widget_get_events (widget); attributes.event_mask |= GDK_EXPOSURE_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_LEAVE_NOTIFY_MASK | GDK_ENTER_NOTIFY_MASK | GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK; attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP; attributes.x = (widget->allocation.x + widget->allocation.width - ARROW_SIZE - 2 * widget->style->klass->xthickness); attributes.y = widget->allocation.y + (widget->allocation.height - widget->requisition.height) / 2; attributes.width = ARROW_SIZE + 2 * widget->style->klass->xthickness; attributes.height = widget->requisition.height; spin->panel = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask); gdk_window_set_user_data (spin->panel, widget); gtk_style_set_background (widget->style, spin->panel, GTK_STATE_NORMAL); } static void gtk_spin_button_unrealize (GtkWidget *widget) { GtkSpinButton *spin; g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_SPIN_BUTTON (widget)); spin = GTK_SPIN_BUTTON (widget); GTK_WIDGET_CLASS (parent_class)->unrealize (widget); if (spin->panel) { gdk_window_set_user_data (spin->panel, NULL); gdk_window_destroy (spin->panel); spin->panel = NULL; } } static void gtk_spin_button_size_request (GtkWidget *widget, GtkRequisition *requisition) { g_return_if_fail (widget != NULL); g_return_if_fail (requisition != NULL); g_return_if_fail (GTK_IS_SPIN_BUTTON (widget)); GTK_WIDGET_CLASS (parent_class)->size_request (widget, requisition); requisition->width = MIN_SPIN_BUTTON_WIDTH + ARROW_SIZE + 2 * widget->style->klass->xthickness; } static void gtk_spin_button_size_allocate (GtkWidget *widget, GtkAllocation *allocation) { GtkAllocation child_allocation; g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_SPIN_BUTTON (widget)); g_return_if_fail (allocation != NULL); child_allocation = *allocation; child_allocation.width -= ARROW_SIZE + 2 * widget->style->klass->xthickness; GTK_WIDGET_CLASS (parent_class)->size_allocate (widget, &child_allocation); widget->allocation = *allocation; if (GTK_WIDGET_REALIZED (widget)) { child_allocation.width = ARROW_SIZE + 2 * widget->style->klass->xthickness; child_allocation.height = widget->requisition.height; child_allocation.x = (allocation->x + allocation->width - ARROW_SIZE - 2 * widget->style->klass->xthickness); child_allocation.y = allocation->y + (allocation->height - widget->requisition.height) / 2; gdk_window_move_resize (GTK_SPIN_BUTTON (widget)->panel, child_allocation.x, child_allocation.y, child_allocation.width, child_allocation.height); } } static void gtk_spin_button_paint (GtkWidget *widget, GdkRectangle *area) { GtkSpinButton *spin; g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_SPIN_BUTTON (widget)); spin = GTK_SPIN_BUTTON (widget); if (GTK_WIDGET_DRAWABLE (widget)) { if (spin->shadow_type != GTK_SHADOW_NONE) gtk_draw_shadow (widget->style, spin->panel, GTK_STATE_NORMAL, spin->shadow_type, 0, 0, ARROW_SIZE + 2 * widget->style->klass->xthickness, widget->requisition.height); gtk_spin_button_draw_arrow (spin, GTK_ARROW_UP); gtk_spin_button_draw_arrow (spin, GTK_ARROW_DOWN); GTK_WIDGET_CLASS (parent_class)->draw (widget, area); } } static void gtk_spin_button_draw (GtkWidget *widget, GdkRectangle *area) { g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_SPIN_BUTTON (widget)); g_return_if_fail (area != NULL); if (GTK_WIDGET_DRAWABLE (widget)) gtk_spin_button_paint (widget, area); } static gint gtk_spin_button_expose (GtkWidget *widget, GdkEventExpose *event) { g_return_val_if_fail (widget != NULL, FALSE); g_return_val_if_fail (GTK_IS_SPIN_BUTTON (widget), FALSE); g_return_val_if_fail (event != NULL, FALSE); if (GTK_WIDGET_DRAWABLE (widget)) gtk_spin_button_paint (widget, &event->area); return FALSE; } static void gtk_spin_button_draw_arrow (GtkSpinButton *spin_button, guint arrow) { GtkStateType state_type; GtkShadowType shadow_type; GtkWidget *widget; gint x; gint y; g_return_if_fail (spin_button != NULL); g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button)); widget = GTK_WIDGET (spin_button); if (GTK_WIDGET_DRAWABLE (spin_button)) { if (spin_button->in_child == arrow) { if (spin_button->click_child == arrow) state_type = GTK_STATE_ACTIVE; else state_type = GTK_STATE_PRELIGHT; } else state_type = GTK_STATE_NORMAL; if (spin_button->click_child == arrow) shadow_type = GTK_SHADOW_IN; else shadow_type = GTK_SHADOW_OUT; if (arrow == GTK_ARROW_UP) { if (spin_button->shadow_type != GTK_SHADOW_NONE) { x = widget->style->klass->xthickness; y = widget->style->klass->ythickness; } else { x = widget->style->klass->xthickness - 1; y = widget->style->klass->ythickness - 1; } gtk_draw_arrow (widget->style, spin_button->panel, state_type, shadow_type, arrow, TRUE, x, y, ARROW_SIZE, widget->requisition.height / 2 - widget->style->klass->ythickness); } else { if (spin_button->shadow_type != GTK_SHADOW_NONE) { x = widget->style->klass->xthickness; y = widget->requisition.height / 2; } else { x = widget->style->klass->xthickness - 1; y = widget->requisition.height / 2 + 1; } gtk_draw_arrow (widget->style, spin_button->panel, state_type, shadow_type, arrow, TRUE, x, y, ARROW_SIZE, widget->requisition.height / 2 - widget->style->klass->ythickness); } } } static gint gtk_spin_button_enter_notify (GtkWidget *widget, GdkEventCrossing *event) { GtkSpinButton *spin; g_return_val_if_fail (widget != NULL, FALSE); g_return_val_if_fail (GTK_IS_SPIN_BUTTON (widget), FALSE); g_return_val_if_fail (event != NULL, FALSE); spin = GTK_SPIN_BUTTON (widget); if (event->window == spin->panel) { gint x; gint y; gdk_window_get_pointer (spin->panel, &x, &y, NULL); if (y <= widget->requisition.height / 2) { spin->in_child = GTK_ARROW_UP; if (spin->click_child == 2) gtk_spin_button_draw_arrow (spin, GTK_ARROW_UP); } else { spin->in_child = GTK_ARROW_DOWN; if (spin->click_child == 2) gtk_spin_button_draw_arrow (spin, GTK_ARROW_DOWN); } } return FALSE; } static gint gtk_spin_button_leave_notify (GtkWidget *widget, GdkEventCrossing *event) { GtkSpinButton *spin; g_return_val_if_fail (widget != NULL, FALSE); g_return_val_if_fail (GTK_IS_SPIN_BUTTON (widget), FALSE); g_return_val_if_fail (event != NULL, FALSE); spin = GTK_SPIN_BUTTON (widget); if (event->window == spin->panel && spin->click_child == 2) { if (spin->in_child == GTK_ARROW_UP) { spin->in_child = 2; gtk_spin_button_draw_arrow (spin, GTK_ARROW_UP); } else { spin->in_child = 2; gtk_spin_button_draw_arrow (spin, GTK_ARROW_DOWN); } } return FALSE; } static gint gtk_spin_button_focus_out (GtkWidget *widget, GdkEventFocus *event) { g_return_val_if_fail (widget != NULL, FALSE); g_return_val_if_fail (GTK_IS_SPIN_BUTTON (widget), FALSE); g_return_val_if_fail (event != NULL, FALSE); gtk_spin_button_update (GTK_SPIN_BUTTON (widget)); return GTK_WIDGET_CLASS (parent_class)->focus_out_event (widget, event); } static gint gtk_spin_button_button_press (GtkWidget *widget, GdkEventButton *event) { GtkSpinButton *spin; g_return_val_if_fail (widget != NULL, FALSE); g_return_val_if_fail (GTK_IS_SPIN_BUTTON (widget), FALSE); g_return_val_if_fail (event != NULL, FALSE); spin = GTK_SPIN_BUTTON (widget); if (!spin->button) { if (event->window == spin->panel) { if (!GTK_WIDGET_HAS_FOCUS (widget)) gtk_widget_grab_focus (widget); gtk_grab_add (widget); spin->button = event->button; gtk_spin_button_update (spin); if (event->y <= widget->requisition.height / 2) { spin->click_child = GTK_ARROW_UP; if (event->button == 1) { gtk_spin_button_real_spin (spin, spin->adjustment->step_increment); if (!spin->timer) { spin->timer_step = spin->adjustment->step_increment; spin->need_timer = TRUE; spin->timer = gtk_timeout_add (SPIN_BUTTON_INITIAL_TIMER_DELAY, (GtkFunction) gtk_spin_button_timer, (gpointer) spin); } } else if (event->button == 2) { gtk_spin_button_real_spin (spin, spin->adjustment->page_increment); if (!spin->timer) { spin->timer_step = spin->adjustment->page_increment; spin->need_timer = TRUE; spin->timer = gtk_timeout_add (SPIN_BUTTON_INITIAL_TIMER_DELAY, (GtkFunction) gtk_spin_button_timer, (gpointer) spin); } } gtk_spin_button_draw_arrow (spin, GTK_ARROW_UP); } else { spin->click_child = GTK_ARROW_DOWN; if (event->button == 1) { gtk_spin_button_real_spin (spin, -spin->adjustment->step_increment); if (!spin->timer) { spin->timer_step = spin->adjustment->step_increment; spin->need_timer = TRUE; spin->timer = gtk_timeout_add (SPIN_BUTTON_INITIAL_TIMER_DELAY, (GtkFunction) gtk_spin_button_timer, (gpointer) spin); } } else if (event->button == 2) { gtk_spin_button_real_spin (spin, -spin->adjustment->page_increment); if (!spin->timer) { spin->timer_step = spin->adjustment->page_increment; spin->need_timer = TRUE; spin->timer = gtk_timeout_add (SPIN_BUTTON_INITIAL_TIMER_DELAY, (GtkFunction) gtk_spin_button_timer, (gpointer) spin); } } gtk_spin_button_draw_arrow (spin, GTK_ARROW_DOWN); } } else GTK_WIDGET_CLASS (parent_class)->button_press_event (widget, event); } return FALSE; } static gint gtk_spin_button_button_release (GtkWidget *widget, GdkEventButton *event) { GtkSpinButton *spin; g_return_val_if_fail (widget != NULL, FALSE); g_return_val_if_fail (GTK_IS_SPIN_BUTTON (widget), FALSE); g_return_val_if_fail (event != NULL, FALSE); spin = GTK_SPIN_BUTTON (widget); if (event->button == spin->button) { guint click_child; if (spin->timer) { gtk_timeout_remove (spin->timer); spin->timer = 0; spin->timer_calls = 0; spin->need_timer = FALSE; } if (event->button == 3) { if (event->y >= 0 && event->x >= 0 && event->y <= widget->requisition.height && event->x <= ARROW_SIZE + 2 * widget->style->klass->xthickness) { if (spin->click_child == GTK_ARROW_UP && event->y <= widget->requisition.height / 2) { gfloat diff; diff = spin->adjustment->upper - spin->adjustment->value; if (diff > EPSILON) gtk_spin_button_real_spin (spin, diff); } else if (spin->click_child == GTK_ARROW_DOWN && event->y > widget->requisition.height / 2) { gfloat diff; diff = spin->adjustment->value - spin->adjustment->lower; if (diff > EPSILON) gtk_spin_button_real_spin (spin, -diff); } } } gtk_grab_remove (widget); click_child = spin->click_child; spin->click_child = 2; spin->button = 0; gtk_spin_button_draw_arrow (spin, click_child); } else GTK_WIDGET_CLASS (parent_class)->button_release_event (widget, event); return FALSE; } static gint gtk_spin_button_motion_notify (GtkWidget *widget, GdkEventMotion *event) { GtkSpinButton *spin; g_return_val_if_fail (widget != NULL, FALSE); g_return_val_if_fail (GTK_IS_SPIN_BUTTON (widget), FALSE); g_return_val_if_fail (event != NULL, FALSE); spin = GTK_SPIN_BUTTON (widget); if (spin->button) return FALSE; if (event->window == spin->panel) { gint y; y = event->y; if (event->is_hint) gdk_window_get_pointer (spin->panel, NULL, &y, NULL); if (y <= widget->requisition.height / 2 && spin->in_child == GTK_ARROW_DOWN) { spin->in_child = GTK_ARROW_UP; gtk_spin_button_draw_arrow (spin, GTK_ARROW_UP); gtk_spin_button_draw_arrow (spin, GTK_ARROW_DOWN); } else if (y > widget->requisition.height / 2 && spin->in_child == GTK_ARROW_UP) { spin->in_child = GTK_ARROW_DOWN; gtk_spin_button_draw_arrow (spin, GTK_ARROW_UP); gtk_spin_button_draw_arrow (spin, GTK_ARROW_DOWN); } return FALSE; } return GTK_WIDGET_CLASS (parent_class)->motion_notify_event (widget, event); } static gint gtk_spin_button_timer (GtkSpinButton *spin_button) { g_return_val_if_fail (spin_button != NULL, FALSE); g_return_val_if_fail (GTK_IS_SPIN_BUTTON (spin_button), FALSE); if (spin_button->timer) { if (spin_button->click_child == GTK_ARROW_UP) 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 = gtk_timeout_add (SPIN_BUTTON_TIMER_DELAY, (GtkFunction) gtk_spin_button_timer, (gpointer) spin_button); return FALSE; } else if (spin_button->climb_rate > 0.0 && spin_button->timer_step < spin_button->adjustment->page_increment) { 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; } } return TRUE; } return FALSE; } static void gtk_spin_button_value_changed (GtkAdjustment *adjustment, GtkSpinButton *spin_button) { char buf[MAX_TEXT_LENGTH]; g_return_if_fail (adjustment != NULL); g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment)); sprintf (buf, "%0.*f", spin_button->digits, adjustment->value); gtk_entry_set_text (GTK_ENTRY (spin_button), buf); } static gint gtk_spin_button_key_press (GtkWidget *widget, GdkEventKey *event) { GtkSpinButton *spin; gint key; gboolean key_repeat = FALSE; g_return_val_if_fail (widget != NULL, FALSE); g_return_val_if_fail (GTK_IS_SPIN_BUTTON (widget), FALSE); g_return_val_if_fail (event != NULL, FALSE); spin = GTK_SPIN_BUTTON (widget); key = event->keyval; key_repeat = (event->time == spin->ev_time); if (key == GDK_Up || key == GDK_Down || key == GDK_Page_Up || key == GDK_Page_Down) gtk_spin_button_update (spin); switch (key) { case GDK_Up: if (GTK_WIDGET_HAS_FOCUS (widget)) { gtk_signal_emit_stop_by_name (GTK_OBJECT (widget), "key_press_event"); if (!key_repeat) spin->timer_step = spin->adjustment->step_increment; gtk_spin_button_real_spin (spin, spin->timer_step); if (key_repeat) { if (spin->climb_rate > 0.0 && spin->timer_step < spin->adjustment->page_increment) { if (spin->timer_calls < MAX_TIMER_CALLS) spin->timer_calls++; else { spin->timer_calls = 0; spin->timer_step += spin->climb_rate; } } } return TRUE; } return FALSE; case GDK_Down: if (GTK_WIDGET_HAS_FOCUS (widget)) { gtk_signal_emit_stop_by_name (GTK_OBJECT (widget), "key_press_event"); if (!key_repeat) spin->timer_step = spin->adjustment->step_increment; gtk_spin_button_real_spin (spin, -spin->timer_step); if (key_repeat) { if (spin->climb_rate > 0.0 && spin->timer_step < spin->adjustment->page_increment) { if (spin->timer_calls < MAX_TIMER_CALLS) spin->timer_calls++; else { spin->timer_calls = 0; spin->timer_step += spin->climb_rate; } } } return TRUE; } return FALSE; case GDK_Page_Up: if (event->state & GDK_CONTROL_MASK) { gfloat diff = spin->adjustment->upper - spin->adjustment->value; if (diff > EPSILON) gtk_spin_button_real_spin (spin, diff); } else gtk_spin_button_real_spin (spin, spin->adjustment->page_increment); return TRUE; case GDK_Page_Down: if (event->state & GDK_CONTROL_MASK) { gfloat diff = spin->adjustment->value - spin->adjustment->lower; if (diff > EPSILON) gtk_spin_button_real_spin (spin, -diff); } else gtk_spin_button_real_spin (spin, -spin->adjustment->page_increment); return TRUE; default: break; } return GTK_WIDGET_CLASS (parent_class)->key_press_event (widget, event); } static gint gtk_spin_button_key_release (GtkWidget *widget, GdkEventKey *event) { GtkSpinButton *spin; g_return_val_if_fail (widget != NULL, FALSE); g_return_val_if_fail (GTK_IS_SPIN_BUTTON (widget), FALSE); spin = GTK_SPIN_BUTTON (widget); spin->ev_time = event->time; return TRUE; } static void gtk_spin_button_snap (GtkSpinButton *spin_button, gfloat val) { gfloat inc; gfloat tmp; inc = spin_button->adjustment->step_increment; tmp = (val - spin_button->adjustment->lower) / inc; if (tmp - floor (tmp) < ceil (tmp) - tmp) val = spin_button->adjustment->lower + floor (tmp) * inc; else val = spin_button->adjustment->lower + ceil (tmp) * inc; if (fabs (val - spin_button->adjustment->value) > EPSILON) gtk_adjustment_set_value (spin_button->adjustment, val); else { char buf[MAX_TEXT_LENGTH]; sprintf (buf, "%0.*f", spin_button->digits, spin_button->adjustment->value); if (strcmp (buf, gtk_entry_get_text (GTK_ENTRY (spin_button)))) gtk_entry_set_text (GTK_ENTRY (spin_button), buf); } } static void gtk_spin_button_update (GtkSpinButton *spin_button) { gfloat val; gchar *error = NULL; g_return_if_fail (spin_button != NULL); g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button)); val = strtod (gtk_entry_get_text (GTK_ENTRY (spin_button)), &error); if (spin_button->update_policy == GTK_UPDATE_ALWAYS) { if (val < spin_button->adjustment->lower) val = spin_button->adjustment->lower; else if (val > spin_button->adjustment->upper) val = spin_button->adjustment->upper; } else if ((spin_button->update_policy == GTK_UPDATE_IF_VALID) && (*error || val < spin_button->adjustment->lower || val > spin_button->adjustment->upper)) { 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 { if (fabs (val - spin_button->adjustment->value) > EPSILON) gtk_adjustment_set_value (spin_button->adjustment, val); else { char buf[MAX_TEXT_LENGTH]; sprintf (buf, "%0.*f", spin_button->digits, spin_button->adjustment->value); if (strcmp (buf, gtk_entry_get_text (GTK_ENTRY (spin_button)))) gtk_entry_set_text (GTK_ENTRY (spin_button), buf); } } } static void gtk_spin_button_activate (GtkEditable *editable) { g_return_if_fail (editable != NULL); g_return_if_fail (GTK_IS_SPIN_BUTTON (editable)); if (editable->editable) gtk_spin_button_update (GTK_SPIN_BUTTON (editable)); } static void gtk_spin_button_insert_text (GtkEditable *editable, const gchar *new_text, gint new_text_length, gint *position) { GtkEntry *entry; GtkSpinButton *spin; g_return_if_fail (editable != NULL); g_return_if_fail (GTK_IS_SPIN_BUTTON (editable)); entry = GTK_ENTRY (editable); spin = GTK_SPIN_BUTTON (editable); if (spin->numeric) { struct lconv *lc; gboolean sign; gint dotpos = -1; gint i; gchar pos_sign; gchar neg_sign; 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 = '+'; sign = ((strchr (entry->text, neg_sign) != 0) || (strchr (entry->text, pos_sign) != 0)); if (sign && !(*position)) return; dotpos = strchr (entry->text, *(lc->decimal_point)) - entry->text; if (dotpos > -1 && *position > dotpos && spin->digits - entry->text_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->text_length - *position > spin->digits)) return; dotpos = *position + i; } else if (new_text[i] < 0x30 || new_text[i] > 0x39) return; } } GTK_EDITABLE_CLASS (parent_class)->insert_text (editable, new_text, new_text_length, position); } static void gtk_spin_button_real_spin (GtkSpinButton *spin_button, gfloat increment) { GtkAdjustment *adj; gfloat new_value = 0.0; g_return_if_fail (spin_button != NULL); g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button)); adj = spin_button->adjustment; new_value = adj->value + increment; if (increment > 0) { if (spin_button->wrap) { if (fabs (adj->value - adj->upper) < EPSILON) new_value = adj->lower; else if (new_value > adj->upper) new_value = adj->upper; } else new_value = MIN (new_value, adj->upper); } else if (increment < 0) { if (spin_button->wrap) { if (fabs (adj->value - adj->lower) < EPSILON) new_value = adj->upper; else if (new_value < adj->lower) new_value = adj->lower; } else new_value = MAX (new_value, adj->lower); } if (fabs (new_value - adj->value) > EPSILON) gtk_adjustment_set_value (adj, new_value); } /*********************************************************** *********************************************************** *** Public interface *** *********************************************************** ***********************************************************/ void gtk_spin_button_configure (GtkSpinButton *spin_button, GtkAdjustment *adjustment, gfloat climb_rate, guint digits) { g_return_if_fail (spin_button != NULL); g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button)); g_return_if_fail (digits < 6); if (adjustment) gtk_spin_button_set_adjustment (spin_button, adjustment); else adjustment = spin_button->adjustment; spin_button->digits = digits; spin_button->climb_rate = climb_rate; gtk_adjustment_value_changed (adjustment); } GtkWidget * gtk_spin_button_new (GtkAdjustment *adjustment, gfloat climb_rate, guint digits) { GtkSpinButton *spin; if (adjustment) g_return_val_if_fail (GTK_IS_ADJUSTMENT (adjustment), NULL); g_return_val_if_fail (digits < 6, NULL); spin = gtk_type_new (GTK_TYPE_SPIN_BUTTON); gtk_spin_button_configure (spin, adjustment, climb_rate, digits); return GTK_WIDGET (spin); } void gtk_spin_button_set_adjustment (GtkSpinButton *spin_button, GtkAdjustment *adjustment) { g_return_if_fail (spin_button != NULL); g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button)); if (spin_button->adjustment != adjustment) { if (spin_button->adjustment) { gtk_signal_disconnect_by_data (GTK_OBJECT (spin_button->adjustment), (gpointer) spin_button); gtk_object_unref (GTK_OBJECT (spin_button->adjustment)); } spin_button->adjustment = adjustment; if (adjustment) { gtk_object_ref (GTK_OBJECT (adjustment)); gtk_object_sink (GTK_OBJECT (adjustment)); gtk_signal_connect (GTK_OBJECT (adjustment), "value_changed", (GtkSignalFunc) gtk_spin_button_value_changed, (gpointer) spin_button); } } } GtkAdjustment * gtk_spin_button_get_adjustment (GtkSpinButton *spin_button) { g_return_val_if_fail (spin_button != NULL, NULL); g_return_val_if_fail (GTK_IS_SPIN_BUTTON (spin_button), NULL); return spin_button->adjustment; } void gtk_spin_button_set_digits (GtkSpinButton *spin_button, guint digits) { g_return_if_fail (spin_button != NULL); g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button)); g_return_if_fail (digits < 6); if (spin_button->digits != digits) { spin_button->digits = digits; gtk_spin_button_value_changed (spin_button->adjustment, spin_button); } } gfloat gtk_spin_button_get_value_as_float (GtkSpinButton *spin_button) { g_return_val_if_fail (spin_button != NULL, 0.0); g_return_val_if_fail (GTK_IS_SPIN_BUTTON (spin_button), 0.0); return spin_button->adjustment->value; } gint gtk_spin_button_get_value_as_int (GtkSpinButton *spin_button) { gfloat val; g_return_val_if_fail (spin_button != NULL, 0); g_return_val_if_fail (GTK_IS_SPIN_BUTTON (spin_button), 0); val = spin_button->adjustment->value; if (val - floor (val) < ceil (val) - val) return floor (val); else return ceil (val); } void gtk_spin_button_set_value (GtkSpinButton *spin_button, gfloat value) { g_return_if_fail (spin_button != NULL); g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button)); if (fabs (value - spin_button->adjustment->value) > EPSILON) gtk_adjustment_set_value (spin_button->adjustment, value); else { char buf[MAX_TEXT_LENGTH]; sprintf (buf, "%0.*f", spin_button->digits, spin_button->adjustment->value); if (strcmp (buf, gtk_entry_get_text (GTK_ENTRY (spin_button)))) gtk_entry_set_text (GTK_ENTRY (spin_button), buf); } } void gtk_spin_button_set_update_policy (GtkSpinButton *spin_button, GtkSpinButtonUpdatePolicy policy) { g_return_if_fail (spin_button != NULL); g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button)); spin_button->update_policy = policy; } void gtk_spin_button_set_numeric (GtkSpinButton *spin_button, gboolean numeric) { g_return_if_fail (spin_button != NULL); g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button)); spin_button->numeric = (numeric != 0); } void gtk_spin_button_set_wrap (GtkSpinButton *spin_button, gboolean wrap) { g_return_if_fail (spin_button != NULL); g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button)); spin_button->wrap = (wrap != 0); } void gtk_spin_button_set_shadow_type (GtkSpinButton *spin_button, GtkShadowType shadow_type) { g_return_if_fail (spin_button != NULL); g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button)); if (shadow_type != spin_button->shadow_type) { spin_button->shadow_type = shadow_type; if (GTK_WIDGET_DRAWABLE (spin_button)) gtk_widget_queue_draw (GTK_WIDGET (spin_button)); } } void gtk_spin_button_set_snap_to_ticks (GtkSpinButton *spin_button, gboolean snap_to_ticks) { guint new_val; g_return_if_fail (spin_button != NULL); 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) { gchar *error = NULL; gfloat val; val = strtod (gtk_entry_get_text (GTK_ENTRY (spin_button)), &error); gtk_spin_button_snap (spin_button, val); } } } void gtk_spin_button_spin (GtkSpinButton *spin_button, GtkSpinType direction, gfloat increment) { GtkAdjustment *adj; gfloat diff; g_return_if_fail (spin_button != NULL); g_return_if_fail (GTK_IS_SPIN_BUTTON (spin_button)); adj = spin_button->adjustment; /* for compatibility with the 1.0.x version of this function */ if (increment != 0 && increment != adj->step_increment && (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, adj->step_increment); break; case GTK_SPIN_STEP_BACKWARD: gtk_spin_button_real_spin (spin_button, -adj->step_increment); break; case GTK_SPIN_PAGE_FORWARD: gtk_spin_button_real_spin (spin_button, adj->page_increment); break; case GTK_SPIN_PAGE_BACKWARD: gtk_spin_button_real_spin (spin_button, -adj->page_increment); break; case GTK_SPIN_HOME: diff = adj->value - adj->lower; if (diff > EPSILON) gtk_spin_button_real_spin (spin_button, -diff); break; case GTK_SPIN_END: diff = adj->upper - adj->value; 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; } }