static void
gimp_ruler_draw_pos (GimpRuler *ruler,
cairo_t *cr)
{
GtkWidget *widget = GTK_WIDGET (ruler);
GtkStyleContext *context = gtk_widget_get_style_context (widget);
GimpRulerPrivate *priv = GIMP_RULER_GET_PRIVATE (ruler);
GdkRectangle pos_rect;
if (! gtk_widget_is_drawable (widget))
return;
pos_rect = gimp_ruler_get_pos_rect (ruler, gimp_ruler_get_position (ruler));
if ((pos_rect.width > 0) && (pos_rect.height > 0))
{
GdkRGBA color;
gtk_style_context_get_color (context, gtk_widget_get_state_flags (widget),
&color);
gdk_cairo_set_source_rgba (cr, &color);
cairo_move_to (cr, pos_rect.x, pos_rect.y);
if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
{
cairo_line_to (cr, pos_rect.x + pos_rect.width / 2.0,
pos_rect.y + pos_rect.height);
cairo_line_to (cr, pos_rect.x + pos_rect.width,
pos_rect.y);
}
else
{
cairo_line_to (cr, pos_rect.x + pos_rect.width,
pos_rect.y + pos_rect.height / 2.0);
cairo_line_to (cr, pos_rect.x,
pos_rect.y + pos_rect.height);
}
cairo_fill (cr);
}
priv->last_pos_rect = pos_rect;
}
static void
gimp_ruler_draw_pos (GimpRuler *ruler, cairo_t *cr)
{
GtkWidget *widget = GTK_WIDGET (ruler);
GtkStyle *style = gtk_widget_get_style (widget);
GimpRulerPrivate *priv = GIMP_RULER_GET_PRIVATE (ruler);
GtkStateType state = gtk_widget_get_state (widget);
GdkRectangle pos_rect;
if (! gtk_widget_is_drawable (widget))
return;
pos_rect = gimp_ruler_get_pos_rect (ruler, gimp_ruler_get_position (ruler));
if ((pos_rect.width > 0) && (pos_rect.height > 0))
{
gdk_cairo_set_source_color (cr, &style->fg[state]);
cairo_move_to (cr, pos_rect.x, pos_rect.y);
if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
{
cairo_line_to (cr, pos_rect.x + pos_rect.width / 2.0,
pos_rect.y + pos_rect.height);
cairo_line_to (cr, pos_rect.x + pos_rect.width,
pos_rect.y);
}
else
{
cairo_line_to (cr, pos_rect.x + pos_rect.width,
pos_rect.y + pos_rect.height / 2.0);
cairo_line_to (cr, pos_rect.x,
pos_rect.y + pos_rect.height);
}
cairo_fill (cr);
}
}
static void
gimp_ruler_draw_pos (GimpRuler *ruler)
{
GtkWidget *widget = GTK_WIDGET (ruler);
GtkStyle *style = gtk_widget_get_style (widget);
GimpRulerPrivate *priv = GIMP_RULER_GET_PRIVATE (ruler);
GtkStateType state = gtk_widget_get_state (widget);
GtkAllocation allocation;
gint x, y;
gint width, height;
gint bs_width, bs_height;
gint xthickness;
gint ythickness;
if (! gtk_widget_is_drawable (widget))
return;
gtk_widget_get_allocation (widget, &allocation);
xthickness = style->xthickness;
ythickness = style->ythickness;
if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
{
width = allocation.width;
height = allocation.height - ythickness * 2;
bs_width = height / 2 + 2;
bs_width |= 1; /* make sure it's odd */
bs_height = bs_width / 2 + 1;
}
else
{
width = allocation.width - xthickness * 2;
height = allocation.height;
bs_height = width / 2 + 2;
bs_height |= 1; /* make sure it's odd */
bs_width = bs_height / 2 + 1;
}
if ((bs_width > 0) && (bs_height > 0))
{
cairo_t *cr = gdk_cairo_create (gtk_widget_get_window (widget));
gdouble lower;
gdouble upper;
gdouble position;
gdouble increment;
cairo_rectangle (cr,
allocation.x, allocation.y,
allocation.width, allocation.height);
cairo_clip (cr);
cairo_translate (cr, allocation.x, allocation.y);
/* If a backing store exists, restore the ruler */
if (priv->backing_store)
{
cairo_set_source_surface (cr, priv->backing_store, 0, 0);
cairo_rectangle (cr, priv->xsrc, priv->ysrc, bs_width, bs_height);
cairo_fill (cr);
}
position = gimp_ruler_get_position (ruler);
gimp_ruler_get_range (ruler, &lower, &upper, NULL);
if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
{
increment = (gdouble) width / (upper - lower);
x = ROUND ((position - lower) * increment) + (xthickness - bs_width) / 2 - 1;
y = (height + bs_height) / 2 + ythickness;
}
else
{
increment = (gdouble) height / (upper - lower);
x = (width + bs_width) / 2 + xthickness;
y = ROUND ((position - lower) * increment) + (ythickness - bs_height) / 2 - 1;
}
gdk_cairo_set_source_color (cr, &style->fg[state]);
cairo_move_to (cr, x, y);
if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
{
cairo_line_to (cr, x + bs_width / 2.0, y + bs_height);
cairo_line_to (cr, x + bs_width, y);
}
else
{
cairo_line_to (cr, x + bs_width, y + bs_height / 2.0);
cairo_line_to (cr, x, y + bs_height);
}
cairo_fill (cr);
cairo_destroy (cr);
priv->xsrc = x;
priv->ysrc = y;
}
}