- return GTK_WIDGET (vscrollbar);
-}
-
-
-static void
-gtk_vscrollbar_realize (GtkWidget *widget)
-{
- GtkRange *range;
- GdkWindowAttr attributes;
- gint attributes_mask;
-
- g_return_if_fail (widget != NULL);
- g_return_if_fail (GTK_IS_VSCROLLBAR (widget));
-
- GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
- range = GTK_RANGE (widget);
-
- attributes.x = widget->allocation.x + (widget->allocation.width - widget->requisition.width) / 2;
- attributes.y = widget->allocation.y;
- attributes.width = widget->requisition.width;
- attributes.height = widget->allocation.height;
- attributes.wclass = GDK_INPUT_OUTPUT;
- attributes.window_type = GDK_WINDOW_CHILD;
- 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_ENTER_NOTIFY_MASK |
- GDK_LEAVE_NOTIFY_MASK);
-
- attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
- widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask);
-
- range->trough = widget->window;
- gdk_window_ref (range->trough);
-
- attributes.x = widget->style->klass->xthickness;
- attributes.y = widget->style->klass->ythickness;
- attributes.width = RANGE_CLASS (widget)->stepper_size;
- attributes.height = RANGE_CLASS (widget)->stepper_size;
-
- range->step_back = gdk_window_new (range->trough, &attributes, attributes_mask);
-
- attributes.y = (widget->allocation.height -
- widget->style->klass->ythickness -
- RANGE_CLASS (widget)->stepper_size);
-
- range->step_forw = gdk_window_new (range->trough, &attributes, attributes_mask);
-
- attributes.x = widget->style->klass->ythickness;
- attributes.y = 0;
- attributes.width = RANGE_CLASS (widget)->slider_width;
- attributes.height = RANGE_CLASS (widget)->min_slider_size;
- attributes.event_mask |= (GDK_BUTTON_MOTION_MASK |
- GDK_POINTER_MOTION_HINT_MASK);
-
- range->slider = gdk_window_new (range->trough, &attributes, attributes_mask);
-
- gtk_vscrollbar_calc_slider_size (GTK_VSCROLLBAR (widget));
- gtk_range_slider_update (GTK_RANGE (widget));
-
- widget->style = gtk_style_attach (widget->style, widget->window);
-
- gdk_window_set_user_data (range->trough, widget);
- gdk_window_set_user_data (range->slider, widget);
- gdk_window_set_user_data (range->step_forw, widget);
- gdk_window_set_user_data (range->step_back, widget);
-
- gtk_style_set_background (widget->style, range->trough, GTK_STATE_ACTIVE);
- gtk_style_set_background (widget->style, range->slider, GTK_STATE_NORMAL);
- gtk_style_set_background (widget->style, range->step_forw, GTK_STATE_ACTIVE);
- gtk_style_set_background (widget->style, range->step_back, GTK_STATE_ACTIVE);
-
- gdk_window_show (range->slider);
- gdk_window_show (range->step_forw);
- gdk_window_show (range->step_back);
-}
-
-static void
-gtk_vscrollbar_size_allocate (GtkWidget *widget,
- GtkAllocation *allocation)
-{
- GtkRange *range;
-
- g_return_if_fail (widget != NULL);
- g_return_if_fail (GTK_IS_VSCROLLBAR (widget));
- g_return_if_fail (allocation != NULL);
-
- widget->allocation = *allocation;
- if (GTK_WIDGET_REALIZED (widget))
- {
- range = GTK_RANGE (widget);
-
- gdk_window_move_resize (range->trough,
- allocation->x + (allocation->width - widget->requisition.width) / 2,
- allocation->y,
- widget->requisition.width, allocation->height);
- gdk_window_move_resize (range->step_back,
- widget->style->klass->xthickness,
- widget->style->klass->ythickness,
- widget->requisition.width - widget->style->klass->xthickness * 2,
- RANGE_CLASS (widget)->stepper_size);
- gdk_window_move_resize (range->step_forw,
- widget->style->klass->xthickness,
- allocation->height - widget->style->klass->ythickness -
- RANGE_CLASS (widget)->stepper_size,
- widget->requisition.width - widget->style->klass->xthickness * 2,
- RANGE_CLASS (widget)->stepper_size);
- gdk_window_resize (range->slider,
- widget->requisition.width - widget->style->klass->xthickness * 2,
- RANGE_CLASS (range)->min_slider_size);
-
- gtk_range_slider_update (GTK_RANGE (widget));
- }
-}
-
-static void
-gtk_vscrollbar_draw_step_forw (GtkRange *range)
-{
- GtkStateType state_type;
- GtkShadowType shadow_type;
-
- g_return_if_fail (range != NULL);
- g_return_if_fail (GTK_IS_VSCROLLBAR (range));
-
- if (GTK_WIDGET_DRAWABLE (range))
- {
- if (range->in_child == RANGE_CLASS (range)->step_forw)
- {
- if (range->click_child == RANGE_CLASS (range)->step_forw)
- state_type = GTK_STATE_ACTIVE;
- else
- state_type = GTK_STATE_PRELIGHT;
- }
- else
- state_type = GTK_STATE_NORMAL;
-
- if (range->click_child == RANGE_CLASS (range)->step_forw)
- shadow_type = GTK_SHADOW_IN;
- else
- shadow_type = GTK_SHADOW_OUT;
-
- gtk_draw_arrow (GTK_WIDGET (range)->style, range->step_forw,
- state_type, shadow_type, GTK_ARROW_DOWN,
- TRUE, 0, 0, -1, -1);
- }
-}
-
-static void
-gtk_vscrollbar_draw_step_back (GtkRange *range)
-{
- GtkStateType state_type;
- GtkShadowType shadow_type;
-
- g_return_if_fail (range != NULL);
- g_return_if_fail (GTK_IS_VSCROLLBAR (range));
-
- if (GTK_WIDGET_DRAWABLE (range))
- {
- if (range->in_child == RANGE_CLASS (range)->step_back)
- {
- if (range->click_child == RANGE_CLASS (range)->step_back)
- state_type = GTK_STATE_ACTIVE;
- else
- state_type = GTK_STATE_PRELIGHT;
- }
- else
- state_type = GTK_STATE_NORMAL;
-
- if (range->click_child == RANGE_CLASS (range)->step_back)
- shadow_type = GTK_SHADOW_IN;
- else
- shadow_type = GTK_SHADOW_OUT;
-
- gtk_draw_arrow (GTK_WIDGET (range)->style, range->step_back,
- state_type, shadow_type, GTK_ARROW_UP,
- TRUE, 0, 0, -1, -1);
- }
-}
-
-static void
-gtk_vscrollbar_slider_update (GtkRange *range)
-{
- g_return_if_fail (range != NULL);
- g_return_if_fail (GTK_IS_VSCROLLBAR (range));
-
- gtk_vscrollbar_calc_slider_size (GTK_VSCROLLBAR (range));
- gtk_range_default_vslider_update (range);
-}
-
-static void
-gtk_vscrollbar_calc_slider_size (GtkVScrollbar *vscrollbar)
-{
- GtkRange *range;
- gint step_back_y;
- gint step_back_height;
- gint step_forw_y;
- gint slider_width;
- gint slider_height;
- gint top, bottom;
- gint height;
-
- g_return_if_fail (vscrollbar != NULL);
- g_return_if_fail (GTK_IS_VSCROLLBAR (vscrollbar));
-
- if (GTK_WIDGET_REALIZED (vscrollbar))
- {
- range = GTK_RANGE (vscrollbar);
-
- gdk_window_get_size (range->step_back, NULL, &step_back_height);
- gdk_window_get_position (range->step_back, NULL, &step_back_y);
- gdk_window_get_position (range->step_forw, NULL, &step_forw_y);
-
- top = (step_back_y +
- step_back_height +
- RANGE_CLASS (vscrollbar)->stepper_slider_spacing);
- bottom = step_forw_y - RANGE_CLASS (vscrollbar)->stepper_slider_spacing;
- height = bottom - top;
-
- if ((range->adjustment->page_size > 0) &&
- (range->adjustment->lower != range->adjustment->upper))
- {
- if (range->adjustment->page_size >
- (range->adjustment->upper - range->adjustment->lower))
- range->adjustment->page_size = range->adjustment->upper - range->adjustment->lower;
-
- height = (height * range->adjustment->page_size /
- (range->adjustment->upper - range->adjustment->lower));
-
- if (height < RANGE_CLASS (vscrollbar)->min_slider_size)
- height = RANGE_CLASS (vscrollbar)->min_slider_size;
- }
-
- gdk_window_get_size (range->slider, &slider_width, &slider_height);
-
- if (slider_height != height)
- gdk_window_resize (range->slider, slider_width, height);
- }
-}
-
-static gint
-gtk_vscrollbar_trough_keys(GtkRange *range,
- GdkEventKey *key,
- GtkScrollType *scroll,
- GtkTroughType *pos)
-{
- gint return_val = FALSE;
- switch (key->keyval)
- {
- case GDK_Up:
- return_val = TRUE;
- *scroll = GTK_SCROLL_STEP_BACKWARD;
- break;
- case GDK_Down:
- return_val = TRUE;
- *scroll = GTK_SCROLL_STEP_FORWARD;
- break;
- case GDK_Page_Up:
- return_val = TRUE;
- if (key->state & GDK_CONTROL_MASK)
- *pos = GTK_TROUGH_START;
- else
- *scroll = GTK_SCROLL_PAGE_BACKWARD;
- break;
- case GDK_Page_Down:
- return_val = TRUE;
- if (key->state & GDK_CONTROL_MASK)
- *pos = GTK_TROUGH_END;
- else
- *scroll = GTK_SCROLL_PAGE_FORWARD;
- break;
- }
- return return_val;