static void
gimp_ruler_realize (GtkWidget *widget)
{
GimpRuler *ruler = GIMP_RULER (widget);
GimpRulerPrivate *priv = GIMP_RULER_GET_PRIVATE (ruler);
GtkAllocation allocation;
GdkWindowAttr attributes;
gint attributes_mask;
GTK_WIDGET_CLASS (gimp_ruler_parent_class)->realize (widget);
gtk_widget_get_allocation (widget, &allocation);
attributes.window_type = GDK_WINDOW_CHILD;
attributes.x = allocation.x;
attributes.y = allocation.y;
attributes.width = allocation.width;
attributes.height = allocation.height;
attributes.wclass = GDK_INPUT_ONLY;
attributes.event_mask = (gtk_widget_get_events (widget) |
GDK_EXPOSURE_MASK |
GDK_POINTER_MOTION_MASK);
attributes_mask = GDK_WA_X | GDK_WA_Y;
priv->input_window = gdk_window_new (gtk_widget_get_window (widget),
&attributes, attributes_mask);
gdk_window_set_user_data (priv->input_window, ruler);
gimp_ruler_make_pixmap (ruler);
}
static gboolean
gimp_ruler_expose (GtkWidget *widget,
GdkEventExpose *event)
{
if (gtk_widget_is_drawable (widget))
{
GimpRuler *ruler = GIMP_RULER (widget);
GimpRulerPrivate *priv = GIMP_RULER_GET_PRIVATE (ruler);
GtkAllocation allocation;
cairo_t *cr;
gimp_ruler_draw_ticks (ruler);
cr = gdk_cairo_create (gtk_widget_get_window (widget));
gdk_cairo_region (cr, event->region);
cairo_clip (cr);
gtk_widget_get_allocation (widget, &allocation);
cairo_translate (cr, allocation.x, allocation.y);
cairo_set_source_surface (cr, priv->backing_store, 0, 0);
cairo_paint (cr);
gimp_ruler_draw_pos (ruler);
cairo_destroy (cr);
}
return FALSE;
}
static void
gimp_ruler_unrealize (GtkWidget *widget)
{
GimpRuler *ruler = GIMP_RULER (widget);
GimpRulerPrivate *priv = GIMP_RULER_GET_PRIVATE (ruler);
if (priv->backing_store)
{
cairo_surface_destroy (priv->backing_store);
priv->backing_store = NULL;
}
if (priv->layout)
{
g_object_unref (priv->layout);
priv->layout = NULL;
}
if (priv->input_window)
{
gdk_window_destroy (priv->input_window);
priv->input_window = NULL;
}
GTK_WIDGET_CLASS (gimp_ruler_parent_class)->unrealize (widget);
}
static void
gimp_ruler_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GimpRuler *ruler = GIMP_RULER (widget);
GimpRulerPrivate *priv = GIMP_RULER_GET_PRIVATE (ruler);
GtkAllocation widget_allocation;
gboolean resized;
gtk_widget_get_allocation (widget, &widget_allocation);
resized = (widget_allocation.width != allocation->width ||
widget_allocation.height != allocation->height);
gtk_widget_set_allocation (widget, allocation);
if (gtk_widget_get_realized (widget))
{
gdk_window_move_resize (priv->input_window,
allocation->x, allocation->y,
allocation->width, allocation->height);
if (resized)
gimp_ruler_make_pixmap (ruler);
}
}
static gboolean
gimp_ruler_motion_notify (GtkWidget *widget,
GdkEventMotion *event)
{
GimpRuler *ruler = GIMP_RULER (widget);
gimp_ruler_update_position (ruler, event->x, event->y);
return FALSE;
}
static void
gimp_ruler_dispose (GObject *object)
{
GimpRuler *ruler = GIMP_RULER (object);
GimpRulerPrivate *priv = GIMP_RULER_GET_PRIVATE (ruler);
while (priv->track_widgets)
gimp_ruler_remove_track_widget (ruler, priv->track_widgets->data);
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
gimp_ruler_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GimpRuler *ruler = GIMP_RULER (object);
GimpRulerPrivate *priv = GIMP_RULER_GET_PRIVATE (ruler);
switch (prop_id)
{
case PROP_ORIENTATION:
priv->orientation = g_value_get_enum (value);
gtk_widget_queue_resize (GTK_WIDGET (ruler));
break;
case PROP_UNIT:
gimp_ruler_set_unit (ruler, g_value_get_int (value));
break;
case PROP_LOWER:
gimp_ruler_set_range (ruler,
g_value_get_double (value),
priv->upper,
priv->max_size);
break;
case PROP_UPPER:
gimp_ruler_set_range (ruler,
priv->lower,
g_value_get_double (value),
priv->max_size);
break;
case PROP_POSITION:
gimp_ruler_set_position (ruler, g_value_get_double (value));
break;
case PROP_MAX_SIZE:
gimp_ruler_set_range (ruler,
priv->lower,
priv->upper,
g_value_get_double (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gimp_ruler_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GimpRuler *ruler = GIMP_RULER (object);
GimpRulerPrivate *priv = GIMP_RULER_GET_PRIVATE (ruler);
switch (prop_id)
{
case PROP_ORIENTATION:
g_value_set_enum (value, priv->orientation);
break;
case PROP_UNIT:
g_value_set_int (value, priv->unit);
break;
case PROP_LOWER:
g_value_set_double (value, priv->lower);
break;
case PROP_UPPER:
g_value_set_double (value, priv->upper);
break;
case PROP_POSITION:
g_value_set_double (value, priv->position);
break;
case PROP_MAX_SIZE:
g_value_set_double (value, priv->max_size);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
gimp_ruler_draw (GtkWidget *widget,
cairo_t *cr)
{
GimpRuler *ruler = GIMP_RULER (widget);
GimpRulerPrivate *priv = GIMP_RULER_GET_PRIVATE (ruler);
GtkStyleContext *context = gtk_widget_get_style_context (widget);
GtkAllocation allocation;
gtk_widget_get_allocation (widget, &allocation);
gtk_render_background (context, cr, 0, 0, allocation.width, allocation.height);
gtk_render_frame (context, cr, 0, 0, allocation.width, allocation.height);
if (! priv->backing_store_valid)
gimp_ruler_draw_ticks (ruler);
cairo_set_source_surface (cr, priv->backing_store, 0, 0);
cairo_paint (cr);
gimp_ruler_draw_pos (ruler, cr);
return FALSE;
}
/**
* gimp_display_shell_scale_update_rulers:
* @shell:
*
**/
void
gimp_display_shell_scale_update_rulers (GimpDisplayShell *shell)
{
GimpImage *image;
gint image_width;
gint image_height;
gdouble resolution_x = 1.0;
gdouble resolution_y = 1.0;
gdouble horizontal_lower;
gdouble horizontal_upper;
gdouble horizontal_max_size;
gdouble vertical_lower;
gdouble vertical_upper;
gdouble vertical_max_size;
if (! shell->display)
return;
image = gimp_display_get_image (shell->display);
if (image)
{
image_width = gimp_image_get_width (image);
image_height = gimp_image_get_height (image);
gimp_image_get_resolution (image, &resolution_x, &resolution_y);
}
else
{
image_width = shell->disp_width;
image_height = shell->disp_height;
}
/* Initialize values */
horizontal_lower = 0;
vertical_lower = 0;
if (image)
{
horizontal_upper = gimp_pixels_to_units (FUNSCALEX (shell,
shell->disp_width),
shell->unit,
resolution_x);
horizontal_max_size = gimp_pixels_to_units (MAX (image_width,
image_height),
shell->unit,
resolution_x);
vertical_upper = gimp_pixels_to_units (FUNSCALEY (shell,
shell->disp_height),
shell->unit,
resolution_y);
vertical_max_size = gimp_pixels_to_units (MAX (image_width,
image_height),
shell->unit,
resolution_y);
}
else
{
horizontal_upper = image_width;
horizontal_max_size = MAX (image_width, image_height);
vertical_upper = image_height;
vertical_max_size = MAX (image_width, image_height);
}
/* Adjust due to scrolling */
if (image)
{
gdouble offset_x;
gdouble offset_y;
offset_x = gimp_pixels_to_units (FUNSCALEX (shell,
(gdouble) shell->offset_x),
shell->unit,
resolution_x);
offset_y = gimp_pixels_to_units (FUNSCALEX (shell,
(gdouble) shell->offset_y),
shell->unit,
resolution_y);
horizontal_lower += offset_x;
horizontal_upper += offset_x;
vertical_lower += offset_y;
vertical_upper += offset_y;
}
/* Finally setup the actual rulers */
gimp_ruler_set_range (GIMP_RULER (shell->hrule),
horizontal_lower,
horizontal_upper,
horizontal_max_size);
gimp_ruler_set_unit (GIMP_RULER (shell->hrule),
shell->unit);
gimp_ruler_set_range (GIMP_RULER (shell->vrule),
vertical_lower,
vertical_upper,
vertical_max_size);
gimp_ruler_set_unit (GIMP_RULER (shell->vrule),
shell->unit);
}
/**
* resolution_calibrate_dialog:
* @resolution_entry: a #GimpSizeEntry to connect the dialog to
* @pixbuf: an optional #GdkPixbuf for the upper left corner
*
* Displays a dialog that allows the user to interactively determine
* her monitor resolution. This dialog runs it's own GTK main loop and
* is connected to a #GimpSizeEntry handling the resolution to be set.
**/
void
resolution_calibrate_dialog (GtkWidget *resolution_entry,
GdkPixbuf *pixbuf)
{
GtkWidget *dialog;
GtkWidget *table;
GtkWidget *vbox;
GtkWidget *hbox;
GtkWidget *ruler;
GtkWidget *label;
GdkScreen *screen;
GdkRectangle rect;
gint monitor;
g_return_if_fail (GIMP_IS_SIZE_ENTRY (resolution_entry));
g_return_if_fail (GTK_WIDGET_REALIZED (resolution_entry));
g_return_if_fail (pixbuf == NULL || GDK_IS_PIXBUF (pixbuf));
/* this dialog can only exist once */
if (calibrate_entry)
return;
dialog = gimp_dialog_new (_("Calibrate Monitor Resolution"),
"gimp-resolution-calibration",
gtk_widget_get_toplevel (resolution_entry),
GTK_DIALOG_DESTROY_WITH_PARENT,
NULL, NULL,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_OK, GTK_RESPONSE_OK,
NULL);
gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
screen = gtk_widget_get_screen (dialog);
monitor = gdk_screen_get_monitor_at_window (screen,
resolution_entry->window);
gdk_screen_get_monitor_geometry (screen, monitor, &rect);
ruler_width = rect.width - 300 - (rect.width % 100);
ruler_height = rect.height - 300 - (rect.height % 100);
table = gtk_table_new (4, 4, FALSE);
gtk_container_set_border_width (GTK_CONTAINER (table), 12);
gtk_container_add (GTK_CONTAINER (GTK_DIALOG (dialog)->vbox), table);
gtk_widget_show (table);
if (pixbuf)
{
GtkWidget *image = gtk_image_new_from_pixbuf (pixbuf);
gtk_table_attach (GTK_TABLE (table), image, 0, 1, 0, 1,
GTK_SHRINK, GTK_SHRINK, 4, 4);
gtk_widget_show (image);
}
ruler = gimp_ruler_new (GTK_ORIENTATION_HORIZONTAL);
gtk_widget_set_size_request (ruler, ruler_width, 32);
gimp_ruler_set_range (GIMP_RULER (ruler), 0, ruler_width, ruler_width);
gtk_table_attach (GTK_TABLE (table), ruler, 1, 3, 0, 1,
GTK_SHRINK, GTK_SHRINK, 0, 0);
gtk_widget_show (ruler);
ruler = gimp_ruler_new (GTK_ORIENTATION_VERTICAL);
gtk_widget_set_size_request (ruler, 32, ruler_height);
gimp_ruler_set_range (GIMP_RULER (ruler), 0, ruler_height, ruler_height);
gtk_table_attach (GTK_TABLE (table), ruler, 0, 1, 1, 3,
GTK_SHRINK, GTK_SHRINK, 0, 0);
gtk_widget_show (ruler);
vbox = gtk_vbox_new (FALSE, 12);
gtk_table_attach (GTK_TABLE (table), vbox, 1, 2, 1, 2,
GTK_SHRINK, GTK_SHRINK, 0, 0);
gtk_widget_show (vbox);
label =
gtk_label_new (_("Measure the rulers and enter their lengths:"));
gtk_label_set_justify (GTK_LABEL (label), GTK_JUSTIFY_LEFT);
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gimp_label_set_attributes (GTK_LABEL (label),
PANGO_ATTR_SCALE, PANGO_SCALE_LARGE,
PANGO_ATTR_WEIGHT, PANGO_WEIGHT_BOLD,
-1);
gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
hbox = gtk_hbox_new (FALSE, 0);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
calibrate_xres =
gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (resolution_entry), 0);
calibrate_yres =
gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (resolution_entry), 1);
calibrate_entry =
gimp_coordinates_new (GIMP_UNIT_INCH, "%p",
FALSE, FALSE, 10,
GIMP_SIZE_ENTRY_UPDATE_SIZE,
FALSE,
FALSE,
_("_Horizontal:"),
ruler_width,
calibrate_xres,
1, GIMP_MAX_IMAGE_SIZE,
0, 0,
_("_Vertical:"),
ruler_height,
calibrate_yres,
1, GIMP_MAX_IMAGE_SIZE,
0, 0);
gtk_widget_hide (GTK_WIDGET (GIMP_COORDINATES_CHAINBUTTON (calibrate_entry)));
g_signal_connect (dialog, "destroy",
G_CALLBACK (gtk_widget_destroyed),
&calibrate_entry);
gtk_box_pack_end (GTK_BOX (hbox), calibrate_entry, FALSE, FALSE, 0);
gtk_widget_show (calibrate_entry);
gtk_widget_show (dialog);
switch (gimp_dialog_run (GIMP_DIALOG (dialog)))
{
case GTK_RESPONSE_OK:
{
GtkWidget *chain_button;
gdouble x, y;
x = gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (calibrate_entry), 0);
y = gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (calibrate_entry), 1);
calibrate_xres = (gdouble) ruler_width * calibrate_xres / x;
calibrate_yres = (gdouble) ruler_height * calibrate_yres / y;
chain_button = GIMP_COORDINATES_CHAINBUTTON (resolution_entry);
if (ABS (x - y) > GIMP_MIN_RESOLUTION)
gimp_chain_button_set_active (GIMP_CHAIN_BUTTON (chain_button),
FALSE);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (resolution_entry),
0, calibrate_xres);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (resolution_entry),
1, calibrate_yres);
}
default:
break;
}
gtk_widget_destroy (dialog);
}
