#include "codeconv.h"
#include "utils.h"
#include "gtkutils.h"
+#include "gtkshruler.h"
#include "socket.h"
#include "alertpanel.h"
#include "manage_window.h"
-#if !GTK_CHECK_VERSION(2, 24, 0)
-#include "gtkshruler.h"
-#endif
#include "folder.h"
#include "addr_compl.h"
#include "quote_fmt.h"
/* callback functions */
-#if !GTK_CHECK_VERSION(2, 24, 0)
static gboolean compose_edit_size_alloc (GtkEditable *widget,
GtkAllocation *allocation,
GtkSHRuler *shruler);
-#endif
static void account_activated (GtkComboBox *optmenu,
gpointer data);
static void attach_selected (GtkTreeView *tree_view,
static void compose_toggle_autoindent_cb(GtkToggleAction *action,
gpointer data);
-#if !GTK_CHECK_VERSION(2, 24, 0)
static void compose_toggle_ruler_cb (GtkToggleAction *action,
gpointer data);
-#endif
static void compose_toggle_sign_cb (GtkToggleAction *action,
gpointer data);
static void compose_toggle_encrypt_cb (GtkToggleAction *action,
{"Options/Encrypt", NULL, N_("_Encrypt"), NULL, NULL, G_CALLBACK(compose_toggle_encrypt_cb) }, /* Toggle */
{"Options/RequestRetRcpt", NULL, N_("_Request Return Receipt"), NULL, NULL, G_CALLBACK(compose_toggle_return_receipt_cb) }, /* TOGGLE */
{"Options/RemoveReferences", NULL, N_("Remo_ve references"), NULL, NULL, G_CALLBACK(compose_toggle_remove_refs_cb) }, /* TOGGLE */
-#if !GTK_CHECK_VERSION(2, 24, 0)
{"Tools/ShowRuler", NULL, N_("Show _ruler"), NULL, NULL, G_CALLBACK(compose_toggle_ruler_cb) }, /* Toggle */
-#endif
};
static GtkRadioActionEntry compose_radio_rm_entries[] =
cm_menu_set_sensitive_full(compose->ui_manager, "Menu/Message/InsertSig", FALSE);
cm_menu_set_sensitive_full(compose->ui_manager, "Menu/Edit", FALSE);
cm_menu_set_sensitive_full(compose->ui_manager, "Menu/Options", FALSE);
-#if !GTK_CHECK_VERSION(2, 24, 0)
cm_menu_set_sensitive_full(compose->ui_manager, "Menu/Tools/ShowRuler", FALSE);
-#endif
cm_menu_set_sensitive_full(compose->ui_manager, "Menu/Tools/Actions", FALSE);
if (compose->toolbar->draft_btn)
GtkWidget *paned;
GtkWidget *edit_vbox;
-#if !GTK_CHECK_VERSION(2, 24, 0)
GtkWidget *ruler_hbox;
GtkWidget *ruler;
-#endif
GtkWidget *scrolledwin;
GtkWidget *text;
GtkTextBuffer *buffer;
/* phew. */
/* Tools menu */
-#if !GTK_CHECK_VERSION(2, 24, 0)
MENUITEM_ADDUI_MANAGER(compose->ui_manager, "/Menu/Tools", "ShowRuler", "Tools/ShowRuler", GTK_UI_MANAGER_MENUITEM)
-#endif
MENUITEM_ADDUI_MANAGER(compose->ui_manager, "/Menu/Tools", "AddressBook", "Tools/AddressBook", GTK_UI_MANAGER_MENUITEM)
MENUITEM_ADDUI_MANAGER(compose->ui_manager, "/Menu/Tools", "Template", "Tools/Template", GTK_UI_MANAGER_MENU)
MENUITEM_ADDUI_MANAGER(compose->ui_manager, "/Menu/Tools/Template", "PlaceHolder", "Tools/Template/PlaceHolder", GTK_UI_MANAGER_MENUITEM)
gtk_box_pack_start(GTK_BOX(edit_vbox), subject_hbox, FALSE, FALSE, 0);
-#if !GTK_CHECK_VERSION(2, 24, 0)
/* ruler */
ruler_hbox = gtk_hbox_new(FALSE, 0);
gtk_box_pack_start(GTK_BOX(edit_vbox), ruler_hbox, FALSE, FALSE, 0);
- ruler = gtk_shruler_new();
- gtk_ruler_set_range(GTK_RULER(ruler), 0.0, 100.0, 1.0, 100.0);
+ ruler = gtk_shruler_new(GTK_ORIENTATION_HORIZONTAL);
+ gtk_shruler_set_range(GTK_SHRULER(ruler), 0.0, 100.0, 1.0);
gtk_box_pack_start(GTK_BOX(ruler_hbox), ruler, TRUE, TRUE,
BORDER_WIDTH);
-#endif
/* text widget */
scrolledwin = gtk_scrolled_window_new(NULL, NULL);
gtk_text_buffer_add_selection_clipboard(buffer, clipboard);
gtk_container_add(GTK_CONTAINER(scrolledwin), text);
-#if !GTK_CHECK_VERSION(2, 24, 0)
g_signal_connect_after(G_OBJECT(text), "size_allocate",
G_CALLBACK(compose_edit_size_alloc),
ruler);
-#endif
g_signal_connect(G_OBJECT(buffer), "changed",
G_CALLBACK(compose_changed_cb), compose);
g_signal_connect(G_OBJECT(text), "grab_focus",
compose->notebook = notebook;
compose->edit_vbox = edit_vbox;
-#if !GTK_CHECK_VERSION(2, 24, 0)
compose->ruler_hbox = ruler_hbox;
compose->ruler = ruler;
-#endif
compose->scrolledwin = scrolledwin;
compose->text = text;
compose_list = g_list_append(compose_list, compose);
-#if !GTK_CHECK_VERSION(2, 24, 0)
if (!prefs_common.show_ruler)
gtk_widget_hide(ruler_hbox);
cm_toggle_menu_set_active_full(compose->ui_manager, "Menu/Tools/ShowRuler", prefs_common.show_ruler);
-#endif
/* Priority */
compose->priority = PRIORITY_NORMAL;
* includes "non-client" (windows-izm) in calculation, so this calculation
* may not be accurate.
*/
-#if !GTK_CHECK_VERSION(2, 24, 0)
static gboolean compose_edit_size_alloc(GtkEditable *widget,
GtkAllocation *allocation,
GtkSHRuler *shruler)
(allocation->width - allocation->x) / char_width;
/* got the maximum */
- gtk_ruler_set_range(GTK_RULER(shruler),
- 0.0, line_width_in_chars, 0,
- /*line_width_in_chars*/ char_width);
+ gtk_shruler_set_range(GTK_SHRULER(shruler),
+ 0.0, line_width_in_chars, 0);
}
return TRUE;
}
-#endif
typedef struct {
gchar *header;
compose_update_privacy_system_menu_item(compose, warn);
}
-#if !GTK_CHECK_VERSION(2, 24, 0)
static void compose_toggle_ruler_cb(GtkToggleAction *action, gpointer data)
{
Compose *compose = (Compose *)data;
prefs_common.show_ruler = FALSE;
}
}
-#endif
static void compose_attach_drag_received_cb (GtkWidget *widget,
GdkDragContext *context,
-/* GtkSHRuler
+/* LIBGTK - The GTK Library
+ * Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
*
- * Copyright (C) 2000-2011 Alfons Hoogervorst & The Claws Mail Team
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
+ * 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 3 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.
+ * Lesser 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, see <http://www.gnu.org/licenses/>.
- */
-
-/* I derived this class from hruler. S in HRuler could be read as
- * Sylpheed (sylpheed.good-day.net), but also [S]ettable HRuler.
- * I basically ripped apart the draw_ticks member of HRuler; it
- * now draws the ticks at ruler->max_size. so gtk_ruler_set_range's
- * last parameter has the distance between two ticks (which is
- * the width of the fixed font character!
- *
- * -- Alfons
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see
+ * <http://www.gnu.org/licenses/>.
*/
+#include "config.h"
+
#include <math.h>
-#include <stdio.h>
#include <string.h>
+
#include <gtk/gtk.h>
+
#include "gtkshruler.h"
-#include "utils.h"
-#include "gtkutils.h"
+#include "gtkunit.h"
-#if !GTK_CHECK_VERSION(2,24,0)
+#define ROUND(x) ((int) ((x) + 0.5))
+
+/**
+ * SECTION: gimpparam
+ * @title: gimpparam
+ * @short_description: Definitions of useful #GParamFlags.
+ *
+ * Definitions of useful #GParamFlags.
+ **/
-#define RULER_HEIGHT 14
-#define MINIMUM_INCR 5
-#define MAXIMUM_SUBDIVIDE 5
-#define MAXIMUM_SCALES 10
-#define ROUND(x) ((int) ((x) + 0.5))
+/**
+ * GTK_PARAM_STATIC_STRINGS:
+ *
+ * Since: GTK 2.4
+ **/
+#define GTK_PARAM_STATIC_STRINGS (G_PARAM_STATIC_NAME | \
+ G_PARAM_STATIC_NICK | \
+ G_PARAM_STATIC_BLURB)
+
+/**
+ * GTK_PARAM_READABLE:
+ *
+ * Since: GTK 2.4
+ **/
+#define GTK_PARAM_READABLE (G_PARAM_READABLE | \
+ GTK_PARAM_STATIC_STRINGS)
+
+/**
+ * GTK_PARAM_WRITABLE:
+ *
+ * Since: GTK 2.4
+ **/
+#define GTK_PARAM_WRITABLE (G_PARAM_WRITABLE | \
+ GTK_PARAM_STATIC_STRINGS)
+
+/**
+ * GTK_PARAM_READWRITE:
+ *
+ * Since: GTK 2.4
+ **/
+#define GTK_PARAM_READWRITE (G_PARAM_READWRITE | \
+ GTK_PARAM_STATIC_STRINGS)
+
+
+/**
+ * SECTION: gimpruler
+ * @title: GtkSHRuler
+ * @short_description: A ruler widget with configurable unit and orientation.
+ *
+ * A ruler widget with configurable unit and orientation.
+ **/
+
+
+#define DEFAULT_RULER_FONT_SCALE PANGO_SCALE_SMALL
+#define MINIMUM_INCR 5
+
+
+enum
+{
+ PROP_0,
+ PROP_ORIENTATION,
+ PROP_UNIT,
+ PROP_LOWER,
+ PROP_UPPER,
+ PROP_POSITION,
+ PROP_MAX_SIZE
+};
+
+
+/* All distances below are in 1/72nd's of an inch. (According to
+ * Adobe that's a point, but points are really 1/72.27 in.)
+ */
+typedef struct
+{
+ GtkOrientation orientation;
+ GtkCMUnit unit;
+ gdouble lower;
+ gdouble upper;
+ gdouble position;
+ gdouble max_size;
+
+ GdkWindow *input_window;
+ cairo_surface_t *backing_store;
+ PangoLayout *layout;
+ gdouble font_scale;
+
+ gint xsrc;
+ gint ysrc;
+
+ GList *track_widgets;
+} GtkSHRulerPrivate;
+
+#define GTK_SHRULER_GET_PRIVATE(ruler) \
+ G_TYPE_INSTANCE_GET_PRIVATE (ruler, GTK_TYPE_SHRULER, GtkSHRulerPrivate)
+
+
+static const struct
+{
+ const gdouble ruler_scale[16];
+ const gint subdivide[3];
+} ruler_metric =
+{
+ { 1, 2, 5, 10, 25, 50, 100, 250, 500, 1000, 2500, 5000, 10000, 25000, 50000, 100000 },
+ { 1, 5, 10 }
+};
+
+
+static void gtk_shruler_dispose (GObject *object);
+static void gtk_shruler_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void gtk_shruler_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec);
+
+static void gtk_shruler_realize (GtkWidget *widget);
+static void gtk_shruler_unrealize (GtkWidget *widget);
+static void gtk_shruler_map (GtkWidget *widget);
+static void gtk_shruler_unmap (GtkWidget *widget);
+static void gtk_shruler_size_allocate (GtkWidget *widget,
+ GtkAllocation *allocation);
+static void gtk_shruler_size_request (GtkWidget *widget,
+ GtkRequisition *requisition);
+static void gtk_shruler_style_set (GtkWidget *widget,
+ GtkStyle *prev_style);
+static gboolean gtk_shruler_motion_notify (GtkWidget *widget,
+ GdkEventMotion *event);
+static gboolean gtk_shruler_expose (GtkWidget *widget,
+ GdkEventExpose *event);
+
+static void gtk_shruler_draw_ticks (GtkSHRuler *ruler);
+static void gtk_shruler_make_pixmap (GtkSHRuler *ruler);
+
+static PangoLayout * gtk_shruler_get_layout (GtkWidget *widget,
+ const gchar *text);
+
+
+G_DEFINE_TYPE (GtkSHRuler, gtk_shruler, GTK_TYPE_WIDGET)
+
+#define parent_class gtk_shruler_parent_class
+
+
+static void
+gtk_shruler_class_init (GtkSHRulerClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+ GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+
+ object_class->dispose = gtk_shruler_dispose;
+ object_class->set_property = gtk_shruler_set_property;
+ object_class->get_property = gtk_shruler_get_property;
+
+ widget_class->realize = gtk_shruler_realize;
+ widget_class->unrealize = gtk_shruler_unrealize;
+ widget_class->map = gtk_shruler_map;
+ widget_class->unmap = gtk_shruler_unmap;
+ widget_class->size_allocate = gtk_shruler_size_allocate;
+ widget_class->size_request = gtk_shruler_size_request;
+ widget_class->style_set = gtk_shruler_style_set;
+ widget_class->motion_notify_event = gtk_shruler_motion_notify;
+ widget_class->expose_event = gtk_shruler_expose;
+
+ g_type_class_add_private (object_class, sizeof (GtkSHRulerPrivate));
+
+ g_object_class_install_property (object_class,
+ PROP_ORIENTATION,
+ g_param_spec_enum ("orientation",
+ "Orientation",
+ "The orientation of the ruler",
+ GTK_TYPE_ORIENTATION,
+ GTK_ORIENTATION_HORIZONTAL,
+ GTK_PARAM_READWRITE));
+
+ g_object_class_install_property (object_class,
+ PROP_LOWER,
+ gtk_param_spec_unit ("unit",
+ "Unit",
+ "Unit of ruler",
+ TRUE, TRUE,
+ CM_UNIT_PIXEL,
+ GTK_PARAM_READWRITE));
+
+ g_object_class_install_property (object_class,
+ PROP_LOWER,
+ g_param_spec_double ("lower",
+ "Lower",
+ "Lower limit of ruler",
+ -G_MAXDOUBLE,
+ G_MAXDOUBLE,
+ 0.0,
+ GTK_PARAM_READWRITE));
+
+ g_object_class_install_property (object_class,
+ PROP_UPPER,
+ g_param_spec_double ("upper",
+ "Upper",
+ "Upper limit of ruler",
+ -G_MAXDOUBLE,
+ G_MAXDOUBLE,
+ 0.0,
+ GTK_PARAM_READWRITE));
+
+ g_object_class_install_property (object_class,
+ PROP_POSITION,
+ g_param_spec_double ("position",
+ "Position",
+ "Position of mark on the ruler",
+ -G_MAXDOUBLE,
+ G_MAXDOUBLE,
+ 0.0,
+ GTK_PARAM_READWRITE));
+
+ g_object_class_install_property (object_class,
+ PROP_MAX_SIZE,
+ g_param_spec_double ("max-size",
+ "Max Size",
+ "Maximum size of the ruler",
+ -G_MAXDOUBLE,
+ G_MAXDOUBLE,
+ 0.0,
+ GTK_PARAM_READWRITE));
+
+ gtk_widget_class_install_style_property (widget_class,
+ g_param_spec_double ("font-scale",
+ NULL, NULL,
+ 0.0,
+ G_MAXDOUBLE,
+ DEFAULT_RULER_FONT_SCALE,
+ GTK_PARAM_READABLE));
+}
+
+static void
+gtk_shruler_init (GtkSHRuler *ruler)
+{
+ GtkSHRulerPrivate *priv = GTK_SHRULER_GET_PRIVATE (ruler);
+
+ gtk_widget_set_has_window (GTK_WIDGET (ruler), FALSE);
+
+ priv->orientation = GTK_ORIENTATION_HORIZONTAL;
+ priv->unit = GTK_PIXELS;
+ priv->lower = 0;
+ priv->upper = 0;
+ priv->position = 0;
+ priv->max_size = 0;
+ priv->backing_store = NULL;
+ priv->font_scale = DEFAULT_RULER_FONT_SCALE;
+}
+
+static void
+gtk_shruler_dispose (GObject *object)
+{
+ GtkSHRuler *ruler = GTK_SHRULER (object);
+ GtkSHRulerPrivate *priv = GTK_SHRULER_GET_PRIVATE (ruler);
+
+ while (priv->track_widgets)
+ gtk_shruler_remove_track_widget (ruler, priv->track_widgets->data);
+
+ G_OBJECT_CLASS (parent_class)->dispose (object);
+}
+
+static void
+gtk_shruler_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ GtkSHRuler *ruler = GTK_SHRULER (object);
+ GtkSHRulerPrivate *priv = GTK_SHRULER_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:
+ gtk_shruler_set_unit (ruler, g_value_get_int (value));
+ break;
+
+ case PROP_LOWER:
+ gtk_shruler_set_range (ruler,
+ g_value_get_double (value),
+ priv->upper,
+ priv->max_size);
+ break;
+ case PROP_UPPER:
+ gtk_shruler_set_range (ruler,
+ priv->lower,
+ g_value_get_double (value),
+ priv->max_size);
+ break;
+
+ case PROP_POSITION:
+ gtk_shruler_set_position (ruler, g_value_get_double (value));
+ break;
+
+ case PROP_MAX_SIZE:
+ gtk_shruler_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
+gtk_shruler_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ GtkSHRuler *ruler = GTK_SHRULER (object);
+ GtkSHRulerPrivate *priv = GTK_SHRULER_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;
+ }
+}
+
+/**
+ * gtk_shruler_new:
+ * @orientation: the ruler's orientation.
+ *
+ * Creates a new ruler.
+ *
+ * Return value: a new #GtkSHRuler widget.
+ *
+ * Since: GTK 2.8
+ **/
+GtkWidget *
+gtk_shruler_new (GtkOrientation orientation)
+{
+ return g_object_new (GTK_TYPE_SHRULER,
+ "orientation", orientation,
+ NULL);
+}
+
+static void
+gtk_shruler_update_position (GtkSHRuler *ruler,
+ gdouble x,
+ gdouble y)
+{
+ GtkSHRulerPrivate *priv = GTK_SHRULER_GET_PRIVATE (ruler);
+ GtkAllocation allocation;
+ gdouble lower;
+ gdouble upper;
+
+ gtk_widget_get_allocation (GTK_WIDGET (ruler), &allocation);
+ gtk_shruler_get_range (ruler, &lower, &upper, NULL);
+
+ if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
+ {
+ gtk_shruler_set_position (ruler,
+ lower +
+ (upper - lower) * x / allocation.width);
+ }
+ else
+ {
+ gtk_shruler_set_position (ruler,
+ lower +
+ (upper - lower) * y / allocation.height);
+ }
+}
+
+/* Returns TRUE if a translation should be done */
+static gboolean
+gtk_widget_get_translation_to_window (GtkWidget *widget,
+ GdkWindow *window,
+ int *x,
+ int *y)
+{
+ GdkWindow *w, *widget_window;
+
+ if (! gtk_widget_get_has_window (widget))
+ {
+ GtkAllocation allocation;
+
+ gtk_widget_get_allocation (widget, &allocation);
+
+ *x = -allocation.x;
+ *y = -allocation.y;
+ }
+ else
+ {
+ *x = 0;
+ *y = 0;
+ }
+
+ widget_window = gtk_widget_get_window (widget);
+
+ for (w = window;
+ w && w != widget_window;
+ w = gdk_window_get_effective_parent (w))
+ {
+ gdouble px, py;
+
+ gdk_window_coords_to_parent (w, *x, *y, &px, &py);
+
+ *x += px;
+ *y += py;
+ }
+
+ if (w == NULL)
+ {
+ *x = 0;
+ *y = 0;
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+static void
+gtk_shruler_event_to_widget_coords (GtkWidget *widget,
+ GdkWindow *window,
+ gdouble event_x,
+ gdouble event_y,
+ gint *widget_x,
+ gint *widget_y)
+{
+ gint tx, ty;
+
+ if (gtk_widget_get_translation_to_window (widget, window, &tx, &ty))
+ {
+ event_x += tx;
+ event_y += ty;
+ }
+
+ *widget_x = event_x;
+ *widget_y = event_y;
+}
+
+static gboolean
+gtk_shruler_track_widget_motion_notify (GtkWidget *widget,
+ GdkEventMotion *mevent,
+ GtkSHRuler *ruler)
+{
+ gint widget_x;
+ gint widget_y;
+ gint ruler_x;
+ gint ruler_y;
+
+ widget = gtk_get_event_widget ((GdkEvent *) mevent);
+
+ gtk_shruler_event_to_widget_coords (widget, mevent->window,
+ mevent->x, mevent->y,
+ &widget_x, &widget_y);
+
+ if (gtk_widget_translate_coordinates (widget, GTK_WIDGET (ruler),
+ widget_x, widget_y,
+ &ruler_x, &ruler_y))
+ {
+ gtk_shruler_update_position (ruler, ruler_x, ruler_y);
+ }
+
+ return FALSE;
+}
+
+/**
+ * gtk_shruler_add_track_widget:
+ * @ruler: a #GtkSHRuler
+ * @widget: the track widget to add
+ *
+ * Adds a "track widget" to the ruler. The ruler will connect to
+ * GtkWidget:motion-notify-event: on the track widget and update its
+ * position marker accordingly. The marker is correctly updated also
+ * for the track widget's children, regardless of whether they are
+ * ordinary children of off-screen children.
+ *
+ * Since: GTK 2.8
+ */
+void
+gtk_shruler_add_track_widget (GtkSHRuler *ruler,
+ GtkWidget *widget)
+{
+ GtkSHRulerPrivate *priv;
+
+ g_return_if_fail (GTK_IS_SHRULER (ruler));
+ g_return_if_fail (GTK_IS_WIDGET (ruler));
+
+ priv = GTK_SHRULER_GET_PRIVATE (ruler);
+
+ g_return_if_fail (g_list_find (priv->track_widgets, widget) == NULL);
+
+ priv->track_widgets = g_list_prepend (priv->track_widgets, widget);
+
+ g_signal_connect (widget, "motion-notify-event",
+ G_CALLBACK (gtk_shruler_track_widget_motion_notify),
+ ruler);
+ g_signal_connect_swapped (widget, "destroy",
+ G_CALLBACK (gtk_shruler_remove_track_widget),
+ ruler);
+}
+
+/**
+ * gtk_shruler_remove_track_widget:
+ * @ruler: a #GtkSHRuler
+ * @widget: the track widget to remove
+ *
+ * Removes a previously added track widget from the ruler. See
+ * gtk_shruler_add_track_widget().
+ *
+ * Since: GTK 2.8
+ */
+void
+gtk_shruler_remove_track_widget (GtkSHRuler *ruler,
+ GtkWidget *widget)
+{
+ GtkSHRulerPrivate *priv;
+
+ g_return_if_fail (GTK_IS_SHRULER (ruler));
+ g_return_if_fail (GTK_IS_WIDGET (ruler));
+
+ priv = GTK_SHRULER_GET_PRIVATE (ruler);
+
+ g_return_if_fail (g_list_find (priv->track_widgets, widget) != NULL);
+
+ priv->track_widgets = g_list_remove (priv->track_widgets, widget);
+
+ g_signal_handlers_disconnect_by_func (widget,
+ gtk_shruler_track_widget_motion_notify,
+ ruler);
+ g_signal_handlers_disconnect_by_func (widget,
+ gtk_shruler_remove_track_widget,
+ ruler);
+}
+
+/**
+ * gtk_shruler_set_unit:
+ * @ruler: a #GtkSHRuler
+ * @unit: the #GtkCMUnit to set the ruler to
+ *
+ * This sets the unit of the ruler.
+ *
+ * Since: GTK 2.8
+ */
+void
+gtk_shruler_set_unit (GtkSHRuler *ruler,
+ GtkCMUnit unit)
+{
+ GtkSHRulerPrivate *priv;
+
+ g_return_if_fail (GTK_IS_SHRULER (ruler));
+
+ priv = GTK_SHRULER_GET_PRIVATE (ruler);
+
+ if (priv->unit != unit)
+ {
+ priv->unit = unit;
+ g_object_notify (G_OBJECT (ruler), "unit");
+
+ gtk_widget_queue_draw (GTK_WIDGET (ruler));
+ }
+}
-static void gtk_shruler_class_init (GtkSHRulerClass *klass);
-static void gtk_shruler_init (GtkSHRuler *hruler);
-static void gtk_shruler_draw_ticks (GtkRuler *ruler);
+/**
+ * gtk_shruler_get_unit:
+ * @ruler: a #GtkSHRuler
+ *
+ * Return value: the unit currently used in the @ruler widget.
+ *
+ * Since: GTK 2.8
+ **/
+GtkCMUnit
+gtk_shruler_get_unit (GtkSHRuler *ruler)
+{
+ g_return_val_if_fail (GTK_IS_SHRULER (ruler), 0);
-GType
-gtk_shruler_get_type(void)
+ return GTK_SHRULER_GET_PRIVATE (ruler)->unit;
+}
+
+/**
+ * gtk_shruler_set_position:
+ * @ruler: a #GtkSHRuler
+ * @position: the position to set the ruler to
+ *
+ * This sets the position of the ruler.
+ *
+ * Since: GTK 2.8
+ */
+void
+gtk_shruler_set_position (GtkSHRuler *ruler,
+ gdouble position)
{
- static GType shruler_type = 0;
+ GtkSHRulerPrivate *priv;
- if ( !shruler_type ) {
- static const GTypeInfo shruler_info = {
- sizeof (GtkSHRulerClass),
+ g_return_if_fail (GTK_IS_SHRULER (ruler));
- (GBaseInitFunc) NULL,
- (GBaseFinalizeFunc) NULL,
+ priv = GTK_SHRULER_GET_PRIVATE (ruler);
- (GClassInitFunc) gtk_shruler_class_init,
- (GClassFinalizeFunc) NULL,
- NULL, /* class_data */
+ if (priv->position != position)
+ {
+ priv->position = position;
+ g_object_notify (G_OBJECT (ruler), "position");
+ }
+}
+
+/**
+ * gtk_shruler_get_position:
+ * @ruler: a #GtkSHRuler
+ *
+ * Return value: the current position of the @ruler widget.
+ *
+ * Since: GTK 2.8
+ **/
+gdouble
+gtk_shruler_get_position (GtkSHRuler *ruler)
+{
+ g_return_val_if_fail (GTK_IS_SHRULER (ruler), 0.0);
- sizeof (GtkSHRuler),
- 0, /* n_preallocs */
- (GInstanceInitFunc) gtk_shruler_init,
- };
- /* inherit from GtkHRuler */
- shruler_type = g_type_register_static (GTK_TYPE_HRULER, "GtkSHRuler", &shruler_info, (GTypeFlags)0);
- }
- return shruler_type;
+ return GTK_SHRULER_GET_PRIVATE (ruler)->position;
+}
+
+/**
+ * gtk_shruler_set_range:
+ * @ruler: a #GtkSHRuler
+ * @lower: the lower limit of the ruler
+ * @upper: the upper limit of the ruler
+ * @max_size: the maximum size of the ruler used when calculating the space to
+ * leave for the text
+ *
+ * This sets the range of the ruler.
+ *
+ * Since: GTK 2.8
+ */
+void
+gtk_shruler_set_range (GtkSHRuler *ruler,
+ gdouble lower,
+ gdouble upper,
+ gdouble max_size)
+{
+ GtkSHRulerPrivate *priv;
+
+ g_return_if_fail (GTK_IS_SHRULER (ruler));
+
+ priv = GTK_SHRULER_GET_PRIVATE (ruler);
+
+ g_object_freeze_notify (G_OBJECT (ruler));
+ if (priv->lower != lower)
+ {
+ priv->lower = lower;
+ g_object_notify (G_OBJECT (ruler), "lower");
+ }
+ if (priv->upper != upper)
+ {
+ priv->upper = upper;
+ g_object_notify (G_OBJECT (ruler), "upper");
+ }
+ if (priv->max_size != max_size)
+ {
+ priv->max_size = max_size;
+ g_object_notify (G_OBJECT (ruler), "max-size");
+ }
+ g_object_thaw_notify (G_OBJECT (ruler));
+
+ gtk_widget_queue_draw (GTK_WIDGET (ruler));
+}
+
+/**
+ * gtk_shruler_get_range:
+ * @ruler: a #GtkSHRuler
+ * @lower: location to store lower limit of the ruler, or %NULL
+ * @upper: location to store upper limit of the ruler, or %NULL
+ * @max_size: location to store the maximum size of the ruler used when
+ * calculating the space to leave for the text, or %NULL.
+ *
+ * Retrieves values indicating the range and current position of a #GtkSHRuler.
+ * See gtk_shruler_set_range().
+ *
+ * Since: GTK 2.8
+ **/
+void
+gtk_shruler_get_range (GtkSHRuler *ruler,
+ gdouble *lower,
+ gdouble *upper,
+ gdouble *max_size)
+{
+ GtkSHRulerPrivate *priv;
+
+ g_return_if_fail (GTK_IS_SHRULER (ruler));
+
+ priv = GTK_SHRULER_GET_PRIVATE (ruler);
+
+ if (lower)
+ *lower = priv->lower;
+ if (upper)
+ *upper = priv->upper;
+ if (max_size)
+ *max_size = priv->max_size;
}
static void
-gtk_shruler_class_init(GtkSHRulerClass * klass)
+gtk_shruler_realize (GtkWidget *widget)
{
- GtkWidgetClass * widget_class;
- GtkRulerClass * hruler_class;
+ GtkSHRuler *ruler = GTK_SHRULER (widget);
+ GtkSHRulerPrivate *priv = GTK_SHRULER_GET_PRIVATE (ruler);
+ GtkAllocation allocation;
+ GdkWindowAttr attributes;
+ gint attributes_mask;
- widget_class = GTK_WIDGET_CLASS(klass);
- hruler_class = GTK_RULER_CLASS(klass);
+ GTK_WIDGET_CLASS (gtk_shruler_parent_class)->realize (widget);
- /* just neglect motion notify events */
- widget_class->motion_notify_event = NULL /* gtk_shruler_motion_notify */;
+ gtk_widget_get_allocation (widget, &allocation);
- /* we want the old ruler draw ticks... */
- /* ruler_class->draw_ticks = gtk_hruler_draw_ticks; */
- hruler_class->draw_ticks = gtk_shruler_draw_ticks;
-
- /* unimplemented draw pos */
- hruler_class->draw_pos = NULL;
-/*
- hruler_class->draw_pos = gtk_shruler_draw_pos;
-*/
+ 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 |
+ GDK_POINTER_MOTION_HINT_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);
+
+ gtk_shruler_make_pixmap (ruler);
}
static void
-gtk_shruler_init (GtkSHRuler * shruler)
+gtk_shruler_unrealize (GtkWidget *widget)
{
- GtkWidget * widget;
-
- widget = GTK_WIDGET (shruler);
- widget->requisition.width = widget->style->xthickness * 2 + 1;
- widget->requisition.height = widget->style->ythickness * 2 + RULER_HEIGHT;
+ GtkSHRuler *ruler = GTK_SHRULER (widget);
+ GtkSHRulerPrivate *priv = GTK_SHRULER_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 (gtk_shruler_parent_class)->unrealize (widget);
+}
+
+static void
+gtk_shruler_map (GtkWidget *widget)
+{
+ GtkSHRulerPrivate *priv = GTK_SHRULER_GET_PRIVATE (widget);
+
+ GTK_WIDGET_CLASS (parent_class)->map (widget);
+
+ if (priv->input_window)
+ gdk_window_show (priv->input_window);
}
+static void
+gtk_shruler_unmap (GtkWidget *widget)
+{
+ GtkSHRulerPrivate *priv = GTK_SHRULER_GET_PRIVATE (widget);
+
+ if (priv->input_window)
+ gdk_window_hide (priv->input_window);
+
+ GTK_WIDGET_CLASS (parent_class)->unmap (widget);
+}
+
+static void
+gtk_shruler_size_allocate (GtkWidget *widget,
+ GtkAllocation *allocation)
+{
+ GtkSHRuler *ruler = GTK_SHRULER (widget);
+ GtkSHRulerPrivate *priv = GTK_SHRULER_GET_PRIVATE (ruler);
+
+ 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);
-GtkWidget*
-gtk_shruler_new(void)
+ gtk_shruler_make_pixmap (ruler);
+ }
+}
+
+static void
+gtk_shruler_size_request (GtkWidget *widget,
+ GtkRequisition *requisition)
{
- return GTK_WIDGET( g_object_new( gtk_shruler_get_type(), NULL ) );
+ GtkSHRulerPrivate *priv = GTK_SHRULER_GET_PRIVATE (widget);
+ GtkStyle *style = gtk_widget_get_style (widget);
+ PangoLayout *layout;
+ PangoRectangle ink_rect;
+ gint size;
+
+ layout = gtk_shruler_get_layout (widget, "0123456789");
+ pango_layout_get_pixel_extents (layout, &ink_rect, NULL);
+
+ size = 2 + ink_rect.height * 1.7;
+
+ if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
+ {
+ requisition->width = style->xthickness * 2 + 1;
+ requisition->height = style->ythickness * 2 + size;
+ }
+ else
+ {
+ requisition->width = style->xthickness * 2 + size;
+ requisition->height = style->ythickness * 2 + 1;
+ }
}
static void
-gtk_shruler_draw_ticks(GtkRuler *ruler)
+gtk_shruler_style_set (GtkWidget *widget,
+ GtkStyle *prev_style)
{
- GtkWidget *widget;
- cairo_t *cr;
- gint i;
- gint width, height;
- gint xthickness;
- gint ythickness;
- gint pos;
+ GtkSHRulerPrivate *priv = GTK_SHRULER_GET_PRIVATE (widget);
+
+ GTK_WIDGET_CLASS (gtk_shruler_parent_class)->style_set (widget, prev_style);
- cm_return_if_fail (ruler != NULL);
- cm_return_if_fail (GTK_IS_HRULER (ruler));
+ gtk_widget_style_get (widget,
+ "font-scale", &priv->font_scale,
+ NULL);
- if (!gtkut_widget_is_drawable (GTK_WIDGET(ruler)))
- return;
+ if (priv->layout)
+ {
+ g_object_unref (priv->layout);
+ priv->layout = NULL;
+ }
+}
- widget = GTK_WIDGET (ruler);
-
- cr = gdk_cairo_create(ruler->backing_store);
- cairo_set_antialias(cr, CAIRO_ANTIALIAS_NONE);
- cairo_set_line_width(cr, 1.);
- gdk_cairo_set_source_color(cr, >k_widget_get_style(widget)->text[GTK_STATE_NORMAL]);
+static gboolean
+gtk_shruler_motion_notify (GtkWidget *widget,
+ GdkEventMotion *event)
+{
+ GtkSHRuler *ruler = GTK_SHRULER (widget);
- xthickness = widget->style->xthickness;
- ythickness = widget->style->ythickness;
+ gdk_event_request_motions (event);
- width = widget->allocation.width;
- height = widget->allocation.height - ythickness * 2;
-
- gtk_paint_box (widget->style, ruler->backing_store,
- GTK_STATE_NORMAL, GTK_SHADOW_OUT,
- NULL, widget, "hruler",
- 0, 0,
- widget->allocation.width, widget->allocation.height);
+ gtk_shruler_update_position (ruler, event->x, event->y);
- /* assume ruler->max_size has the char width */
- /* i is increment of char_width, pos is label number
- * y position is based on height of widget itself */
- for ( i = 0, pos = 0; i < widget->allocation.width - xthickness; i += ruler->max_size, pos++ ) {
- gint length = height / 8;
-
- if ( pos % 10 == 0 ) length = ( 2 * height / 3 );
- else if ( pos % 5 == 0 ) length = ( height / 3 );
-
- cairo_move_to(cr, i, height + ythickness);
- cairo_line_to(cr, i, height - length);
- cairo_stroke(cr);
-
- if ( pos % 10 == 0 ) {
- gchar buf[8];
- PangoLayout *layout;
+ return FALSE;
+}
+
+static gboolean
+gtk_shruler_expose (GtkWidget *widget,
+ GdkEventExpose *event)
+{
+ if (gtk_widget_is_drawable (widget))
+ {
+ GtkSHRuler *ruler = GTK_SHRULER (widget);
+ GtkSHRulerPrivate *priv = GTK_SHRULER_GET_PRIVATE (ruler);
+ GtkAllocation allocation;
+ cairo_t *cr;
- /* draw label */
- g_snprintf(buf, sizeof buf, "%d", pos);
+ gtk_shruler_draw_ticks (ruler);
- layout = gtk_widget_create_pango_layout
- (GTK_WIDGET(ruler), buf);
+ cr = gdk_cairo_create (gtk_widget_get_window (widget));
+ gdk_cairo_region (cr, event->region);
+ cairo_clip (cr);
- cairo_move_to(cr, i+2, 0);
- pango_cairo_show_layout(cr, layout);
+ gtk_widget_get_allocation (widget, &allocation);
+ cairo_translate (cr, allocation.x, allocation.y);
- g_object_unref(layout);
- }
- }
+ cairo_set_source_surface (cr, priv->backing_store, 0, 0);
+ cairo_paint (cr);
- cairo_destroy(cr);
+ cairo_destroy (cr);
+ }
+
+ return FALSE;
}
+
+static void
+gtk_shruler_draw_ticks (GtkSHRuler *ruler)
+{
+ GtkWidget *widget = GTK_WIDGET (ruler);
+ GtkStyle *style = gtk_widget_get_style (widget);
+ GtkSHRulerPrivate *priv = GTK_SHRULER_GET_PRIVATE (ruler);
+ GtkStateType state = gtk_widget_get_state (widget);
+ GtkAllocation allocation;
+ cairo_t *cr;
+ gint i;
+ gint width, height;
+ gint xthickness;
+ gint ythickness;
+ gint length;
+ gdouble lower, upper; /* Upper and lower limits, in ruler units */
+ gdouble increment; /* Number of pixels per unit */
+ gint scale; /* Number of units per major unit */
+ gdouble start, end, cur;
+ gchar unit_str[32];
+ gint digit_height;
+ gint digit_offset;
+ gint text_size;
+ gint pos;
+ gdouble max_size;
+ GtkCMUnit unit;
+ PangoLayout *layout;
+ PangoRectangle logical_rect, ink_rect;
+
+ if (! gtk_widget_is_drawable (widget))
+ return;
+
+ gtk_widget_get_allocation (widget, &allocation);
+
+ xthickness = style->xthickness;
+ ythickness = style->ythickness;
+
+ layout = gtk_shruler_get_layout (widget, "0123456789");
+ pango_layout_get_extents (layout, &ink_rect, &logical_rect);
+
+ digit_height = PANGO_PIXELS (ink_rect.height) + 2;
+ digit_offset = ink_rect.y;
+
+ if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
+ {
+ width = allocation.width;
+ height = allocation.height - ythickness * 2;
+ }
+ else
+ {
+ width = allocation.height;
+ height = allocation.width - ythickness * 2;
+ }
+
+ cr = cairo_create (priv->backing_store);
+ gdk_cairo_set_source_color (cr, &style->bg[state]);
+
+#if 0
+ gtk_paint_box (style, priv->backing_store,
+ GTK_STATE_NORMAL, GTK_SHADOW_OUT,
+ NULL, widget,
+ priv->orientation == GTK_ORIENTATION_HORIZONTAL ?
+ "hruler" : "vruler",
+ 0, 0,
+ allocation.width, allocation.height);
+#else
+ cairo_paint (cr);
#endif
+
+ gdk_cairo_set_source_color (cr, &style->fg[state]);
+
+ gtk_shruler_get_range (ruler, &lower, &upper, &max_size);
+
+ if ((upper - lower) == 0)
+ goto out;
+
+ increment = (gdouble) width / (upper - lower);
+
+ /* determine the scale
+ * use the maximum extents of the ruler to determine the largest
+ * possible number to be displayed. Calculate the height in pixels
+ * of this displayed text. Use this height to find a scale which
+ * leaves sufficient room for drawing the ruler.
+ *
+ * We calculate the text size as for the vruler instead of
+ * actually measuring the text width, so that the result for the
+ * scale looks consistent with an accompanying vruler.
+ */
+ scale = ceil (max_size);
+ g_snprintf (unit_str, sizeof (unit_str), "%d", scale);
+ text_size = strlen (unit_str) * digit_height + 1;
+
+ for (scale = 0; scale < G_N_ELEMENTS (ruler_metric.ruler_scale); scale++)
+ if (ruler_metric.ruler_scale[scale] * fabs (increment) > 2 * text_size)
+ break;
+
+ if (scale == G_N_ELEMENTS (ruler_metric.ruler_scale))
+ scale = G_N_ELEMENTS (ruler_metric.ruler_scale) - 1;
+
+ unit = gtk_shruler_get_unit (ruler);
+
+ /* drawing starts here */
+ length = 0;
+ for (i = G_N_ELEMENTS (ruler_metric.subdivide) - 1; i >= 0; i--)
+ {
+ gdouble subd_incr;
+
+ /* hack to get proper subdivisions at full pixels */
+ if (unit == CM_UNIT_PIXEL && scale == 1 && i == 1)
+ subd_incr = 1.0;
+ else
+ subd_incr = ((gdouble) ruler_metric.ruler_scale[scale] /
+ (gdouble) ruler_metric.subdivide[i]);
+
+ if (subd_incr * fabs (increment) <= MINIMUM_INCR)
+ continue;
+
+ /* don't subdivide pixels */
+ if (unit == CM_UNIT_PIXEL && subd_incr < 1.0)
+ continue;
+
+ if (lower < upper)
+ {
+ start = floor (lower / subd_incr) * subd_incr;
+ end = ceil (upper / subd_incr) * subd_incr;
+ }
+ else
+ {
+ start = floor (upper / subd_incr) * subd_incr;
+ end = ceil (lower / subd_incr) * subd_incr;
+ }
+
+ for (cur = start; cur <= end; cur += subd_incr)
+ {
+ if (((int)cur) % 10 == 0)
+ length = height * 2 / 3;
+ else if (((int)cur) % 5 == 0)
+ length = height / 3;
+ else
+ length = height / 4;
+
+ pos = ROUND ((cur - lower) * increment);
+
+ if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
+ {
+ cairo_rectangle (cr,
+ pos, height + ythickness - length,
+ 1, length);
+ }
+ else
+ {
+ cairo_rectangle (cr,
+ height + xthickness - length, pos,
+ length, 1);
+ }
+
+ /* draw label */
+ if (i == 0 && ((int)cur) % 10 == 0)
+ {
+ g_snprintf (unit_str, sizeof (unit_str), "%d", (int) cur);
+
+ if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
+ {
+ pango_layout_set_text (layout, unit_str, -1);
+ pango_layout_get_extents (layout, &logical_rect, NULL);
+
+ cairo_move_to (cr,
+ pos + 2,
+ ythickness + PANGO_PIXELS (logical_rect.y - digit_offset));
+ pango_cairo_show_layout (cr, layout);
+ }
+ else
+ {
+ gint j;
+
+ for (j = 0; j < (int) strlen (unit_str); j++)
+ {
+ pango_layout_set_text (layout, unit_str + j, 1);
+ pango_layout_get_extents (layout, NULL, &logical_rect);
+
+ cairo_move_to (cr,
+ xthickness + 1,
+ pos + digit_height * j + 2 + PANGO_PIXELS (logical_rect.y - digit_offset));
+ pango_cairo_show_layout (cr, layout);
+ }
+ }
+ }
+ }
+ }
+
+ cairo_fill (cr);
+out:
+ cairo_destroy (cr);
+}
+
+static void
+gtk_shruler_make_pixmap (GtkSHRuler *ruler)
+{
+ GtkWidget *widget = GTK_WIDGET (ruler);
+ GtkSHRulerPrivate *priv = GTK_SHRULER_GET_PRIVATE (ruler);
+ GtkAllocation allocation;
+
+ gtk_widget_get_allocation (widget, &allocation);
+
+ if (priv->backing_store)
+ cairo_surface_destroy (priv->backing_store);
+
+ priv->backing_store =
+ gdk_window_create_similar_surface (gtk_widget_get_window (widget),
+ CAIRO_CONTENT_COLOR,
+ allocation.width,
+ allocation.height);
+}
+
+
+static PangoLayout *
+gtk_shruler_create_layout (GtkWidget *widget,
+ const gchar *text)
+{
+ GtkSHRulerPrivate *priv = GTK_SHRULER_GET_PRIVATE (widget);
+ PangoLayout *layout;
+ PangoAttrList *attrs;
+ PangoAttribute *attr;
+
+ layout = gtk_widget_create_pango_layout (widget, text);
+
+ attrs = pango_attr_list_new ();
+
+ attr = pango_attr_scale_new (priv->font_scale);
+ attr->start_index = 0;
+ attr->end_index = -1;
+ pango_attr_list_insert (attrs, attr);
+
+ pango_layout_set_attributes (layout, attrs);
+ pango_attr_list_unref (attrs);
+
+ return layout;
+}
+
+static PangoLayout *
+gtk_shruler_get_layout (GtkWidget *widget,
+ const gchar *text)
+{
+ GtkSHRulerPrivate *priv = GTK_SHRULER_GET_PRIVATE (widget);
+
+ if (priv->layout)
+ {
+ pango_layout_set_text (priv->layout, text, -1);
+ return priv->layout;
+ }
+
+ priv->layout = gtk_shruler_create_layout (widget, text);
+
+ return priv->layout;
+}
--- /dev/null
+/* LIBGTK - The GTK Library
+ * Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
+ *
+ * gimpunit.c
+ * Copyright (C) 2003 Michael Natterer <mitch@gimp.org>
+ *
+ * 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 3 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
+ * <http://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include "gtkunit.h"
+
+#include <string.h>
+
+#include <glib-object.h>
+
+
+GtkCMUnitVtable _gtk_unit_vtable = { NULL, };
+
+
+void
+gtk_base_init (GtkCMUnitVtable *vtable)
+{
+ static gboolean gtk_base_initialized = FALSE;
+
+ g_return_if_fail (vtable != NULL);
+
+ if (gtk_base_initialized)
+ g_error ("gtk_base_init() must only be called once!");
+
+ _gtk_unit_vtable = *vtable;
+
+ gtk_base_initialized = TRUE;
+}
+
+
+/**
+ * SECTION: gimpunit
+ * @title: gimpunit
+ * @short_description: Provides a collection of predefined units and
+ * functions for creating user-defined units.
+ * @see_also: #GtkCMUnitMenu, #GtkSizeEntry.
+ *
+ * Provides a collection of predefined units and functions for
+ * creating user-defined units.
+ **/
+
+
+static void unit_to_string (const GValue *src_value,
+ GValue *dest_value);
+static void string_to_unit (const GValue *src_value,
+ GValue *dest_value);
+
+GType
+gtk_unit_get_type (void)
+{
+ static GType unit_type = 0;
+
+ if (! unit_type)
+ {
+ const GTypeInfo type_info = { 0, };
+
+ unit_type = g_type_register_static (G_TYPE_INT, "GtkCMUnit",
+ &type_info, 0);
+
+ g_value_register_transform_func (unit_type, G_TYPE_STRING,
+ unit_to_string);
+ g_value_register_transform_func (G_TYPE_STRING, unit_type,
+ string_to_unit);
+ }
+
+ return unit_type;
+}
+
+static void
+unit_to_string (const GValue *src_value,
+ GValue *dest_value)
+{
+ GtkCMUnit unit = (GtkCMUnit) g_value_get_int (src_value);
+
+ g_value_set_string (dest_value, gtk_unit_get_identifier (unit));
+}
+
+static void
+string_to_unit (const GValue *src_value,
+ GValue *dest_value)
+{
+ const gchar *str;
+ gint num_units;
+ gint i;
+
+ str = g_value_get_string (src_value);
+
+ if (!str || !*str)
+ goto error;
+
+ num_units = gtk_unit_get_number_of_units ();
+
+ for (i = CM_UNIT_PIXEL; i < num_units; i++)
+ if (strcmp (str, gtk_unit_get_identifier (i)) == 0)
+ break;
+
+ if (i == num_units)
+ {
+ if (strcmp (str, gtk_unit_get_identifier (CM_UNIT_PERCENT)) == 0)
+ i = CM_UNIT_PERCENT;
+ else
+ goto error;
+ }
+
+ g_value_set_int (dest_value, i);
+ return;
+
+ error:
+ g_warning ("Can't convert string to GtkCMUnit.");
+}
+
+
+/**
+ * gtk_unit_get_number_of_units:
+ *
+ * Returns the number of units which are known to the #GtkCMUnit system.
+ *
+ * Returns: The number of defined units.
+ **/
+gint
+gtk_unit_get_number_of_units (void)
+{
+ g_return_val_if_fail (_gtk_unit_vtable.unit_get_number_of_units != NULL,
+ CM_UNIT_END);
+
+ return _gtk_unit_vtable.unit_get_number_of_units ();
+}
+
+/**
+ * gtk_unit_get_number_of_built_in_units:
+ *
+ * Returns the number of #GtkCMUnit's which are hardcoded in the unit system
+ * (UNIT_INCH, UNIT_MM, UNIT_POINT, UNIT_PICA and the two "pseudo unit"
+ * UNIT_PIXEL).
+ *
+ * Returns: The number of built-in units.
+ **/
+gint
+gtk_unit_get_number_of_built_in_units (void)
+{
+ g_return_val_if_fail (_gtk_unit_vtable.unit_get_number_of_built_in_units
+ != NULL, CM_UNIT_END);
+
+ return _gtk_unit_vtable.unit_get_number_of_built_in_units ();
+}
+
+/**
+ * gtk_unit_new:
+ * @identifier: The unit's identifier string.
+ * @factor: The unit's factor (how many units are in one inch).
+ * @digits: The unit's suggested number of digits (see gtk_unit_get_digits()).
+ * @symbol: The symbol of the unit (e.g. "''" for inch).
+ * @abbreviation: The abbreviation of the unit.
+ * @singular: The singular form of the unit.
+ * @plural: The plural form of the unit.
+ *
+ * Returns the integer ID of the new #GtkCMUnit.
+ *
+ * Note that a new unit is always created with it's deletion flag
+ * set to %TRUE. You will have to set it to %FALSE with
+ * gtk_unit_set_deletion_flag() to make the unit definition persistent.
+ *
+ * Returns: The ID of the new unit.
+ **/
+GtkCMUnit
+gtk_unit_new (gchar *identifier,
+ gdouble factor,
+ gint digits,
+ gchar *symbol,
+ gchar *abbreviation,
+ gchar *singular,
+ gchar *plural)
+{
+ g_return_val_if_fail (_gtk_unit_vtable.unit_new != NULL, CM_UNIT_INCH);
+
+ return _gtk_unit_vtable.unit_new (identifier, factor, digits,
+ symbol, abbreviation, singular, plural);
+}
+
+/**
+ * gtk_unit_get_deletion_flag:
+ * @unit: The unit you want to know the @deletion_flag of.
+ *
+ * Returns: The unit's @deletion_flag.
+ **/
+gboolean
+gtk_unit_get_deletion_flag (GtkCMUnit unit)
+{
+ g_return_val_if_fail (_gtk_unit_vtable.unit_get_deletion_flag != NULL, FALSE);
+
+ return _gtk_unit_vtable.unit_get_deletion_flag (unit);
+}
+
+/**
+ * gtk_unit_set_deletion_flag:
+ * @unit: The unit you want to set the @deletion_flag for.
+ * @deletion_flag: The new deletion_flag.
+ *
+ * Sets a #GtkCMUnit's @deletion_flag. If the @deletion_flag of a unit is
+ * %TRUE when GTK exits, this unit will not be saved in the users's
+ * "unitrc" file.
+ *
+ * Trying to change the @deletion_flag of a built-in unit will be silently
+ * ignored.
+ **/
+void
+gtk_unit_set_deletion_flag (GtkCMUnit unit,
+ gboolean deletion_flag)
+{
+ g_return_if_fail (_gtk_unit_vtable.unit_set_deletion_flag != NULL);
+
+ _gtk_unit_vtable.unit_set_deletion_flag (unit, deletion_flag);
+}
+
+/**
+ * gtk_unit_get_factor:
+ * @unit: The unit you want to know the factor of.
+ *
+ * A #GtkCMUnit's @factor is defined to be:
+ *
+ * distance_in_units == (@factor * distance_in_inches)
+ *
+ * Returns 0 for @unit == CM_UNIT_PIXEL.
+ *
+ * Returns: The unit's factor.
+ **/
+gdouble
+gtk_unit_get_factor (GtkCMUnit unit)
+{
+ g_return_val_if_fail (_gtk_unit_vtable.unit_get_factor != NULL, 1.0);
+
+ return _gtk_unit_vtable.unit_get_factor (unit);
+}
+
+/**
+ * gtk_unit_get_digits:
+ * @unit: The unit you want to know the digits.
+ *
+ * Returns the number of digits an entry field should provide to get
+ * approximately the same accuracy as an inch input field with two digits.
+ *
+ * Returns 0 for @unit == CM_UNIT_PIXEL.
+ *
+ * Returns: The suggested number of digits.
+ **/
+gint
+gtk_unit_get_digits (GtkCMUnit unit)
+{
+ g_return_val_if_fail (_gtk_unit_vtable.unit_get_digits != NULL, 2);
+
+ return _gtk_unit_vtable.unit_get_digits (unit);
+}
+
+/**
+ * gtk_unit_get_identifier:
+ * @unit: The unit you want to know the identifier of.
+ *
+ * This is an unstranslated string and must not be changed or freed.
+ *
+ * Returns: The unit's identifier.
+ **/
+const gchar *
+gtk_unit_get_identifier (GtkCMUnit unit)
+{
+ g_return_val_if_fail (_gtk_unit_vtable.unit_get_identifier != NULL, NULL);
+
+ return _gtk_unit_vtable.unit_get_identifier (unit);
+}
+
+/**
+ * gtk_unit_get_symbol:
+ * @unit: The unit you want to know the symbol of.
+ *
+ * This is e.g. "''" for UNIT_INCH.
+ *
+ * NOTE: This string must not be changed or freed.
+ *
+ * Returns: The unit's symbol.
+ **/
+const gchar *
+gtk_unit_get_symbol (GtkCMUnit unit)
+{
+ g_return_val_if_fail (_gtk_unit_vtable.unit_get_symbol != NULL, NULL);
+
+ return _gtk_unit_vtable.unit_get_symbol (unit);
+}
+
+/**
+ * gtk_unit_get_abbreviation:
+ * @unit: The unit you want to know the abbreviation of.
+ *
+ * For built-in units, this function returns the translated abbreviation
+ * of the unit.
+ *
+ * NOTE: This string must not be changed or freed.
+ *
+ * Returns: The unit's abbreviation.
+ **/
+const gchar *
+gtk_unit_get_abbreviation (GtkCMUnit unit)
+{
+ g_return_val_if_fail (_gtk_unit_vtable.unit_get_abbreviation != NULL, NULL);
+
+ return _gtk_unit_vtable.unit_get_abbreviation (unit);
+}
+
+/**
+ * gtk_unit_get_singular:
+ * @unit: The unit you want to know the singular form of.
+ *
+ * For built-in units, this function returns the translated singular form
+ * of the unit's name.
+ *
+ * NOTE: This string must not be changed or freed.
+ *
+ * Returns: The unit's singular form.
+ **/
+const gchar *
+gtk_unit_get_singular (GtkCMUnit unit)
+{
+ g_return_val_if_fail (_gtk_unit_vtable.unit_get_singular != NULL, NULL);
+
+ return _gtk_unit_vtable.unit_get_singular (unit);
+}
+
+/**
+ * gtk_unit_get_plural:
+ * @unit: The unit you want to know the plural form of.
+ *
+ * For built-in units, this function returns the translated plural form
+ * of the unit's name.
+ *
+ * NOTE: This string must not be changed or freed.
+ *
+ * Returns: The unit's plural form.
+ **/
+const gchar *
+gtk_unit_get_plural (GtkCMUnit unit)
+{
+ g_return_val_if_fail (_gtk_unit_vtable.unit_get_plural != NULL, NULL);
+
+ return _gtk_unit_vtable.unit_get_plural (unit);
+}
+
+static gint
+print (gchar *buf,
+ gint len,
+ gint start,
+ const gchar *fmt,
+ ...)
+{
+ va_list args;
+ gint printed;
+
+ va_start (args, fmt);
+
+ printed = g_vsnprintf (buf + start, len - start, fmt, args);
+ if (printed < 0)
+ printed = len - start;
+
+ va_end (args);
+
+ return printed;
+}
+
+/**
+ * gtk_unit_format_string:
+ * @format: A printf-like format string which is used to create the unit
+ * string.
+ * @unit: A unit.
+ *
+ * The @format string supports the following percent expansions:
+ *
+ * <informaltable pgwide="1" frame="none" role="enum">
+ * <tgroup cols="2"><colspec colwidth="1*"/><colspec colwidth="8*"/>
+ * <tbody>
+ * <row>
+ * <entry>% f</entry>
+ * <entry>Factor (how many units make up an inch)</entry>
+ * </row>
+ * <row>
+ * <entry>% y</entry>
+ * <entry>Symbol (e.g. "''" for CM_UNIT_INCH)</entry>
+ * </row>
+ * <row>
+ * <entry>% a</entry>
+ * <entry>Abbreviation</entry>
+ * </row>
+ * <row>
+ * <entry>% s</entry>
+ * <entry>Singular</entry>
+ * </row>
+ * <row>
+ * <entry>% p</entry>
+ * <entry>Plural</entry>
+ * </row>
+ * <row>
+ * <entry>%%</entry>
+ * <entry>Literal percent</entry>
+ * </row>
+ * </tbody>
+ * </tgroup>
+ * </informaltable>
+ *
+ * Returns: A newly allocated string with above percent expressions
+ * replaced with the resp. strings for @unit.
+ *
+ * Since: GTK 2.8
+ **/
+gchar *
+gtk_unit_format_string (const gchar *format,
+ GtkCMUnit unit)
+{
+ gchar buffer[1024];
+ gint i = 0;
+
+ g_return_val_if_fail (format != NULL, NULL);
+ g_return_val_if_fail (unit == CM_UNIT_PERCENT ||
+ (unit >= CM_UNIT_PIXEL &&
+ unit < gtk_unit_get_number_of_units ()), NULL);
+
+ while (i < (sizeof (buffer) - 1) && *format)
+ {
+ switch (*format)
+ {
+ case '%':
+ format++;
+ switch (*format)
+ {
+ case 0:
+ g_warning ("%s: unit-menu-format string ended within %%-sequence",
+ G_STRFUNC);
+ break;
+
+ case '%':
+ buffer[i++] = '%';
+ break;
+
+ case 'f': /* factor (how many units make up an inch) */
+ i += print (buffer, sizeof (buffer), i, "%f",
+ gtk_unit_get_factor (unit));
+ break;
+
+ case 'y': /* symbol ("''" for inch) */
+ i += print (buffer, sizeof (buffer), i, "%s",
+ gtk_unit_get_symbol (unit));
+ break;
+
+ case 'a': /* abbreviation */
+ i += print (buffer, sizeof (buffer), i, "%s",
+ gtk_unit_get_abbreviation (unit));
+ break;
+
+ case 's': /* singular */
+ i += print (buffer, sizeof (buffer), i, "%s",
+ gtk_unit_get_singular (unit));
+ break;
+
+ case 'p': /* plural */
+ i += print (buffer, sizeof (buffer), i, "%s",
+ gtk_unit_get_plural (unit));
+ break;
+
+ default:
+ g_warning ("%s: unit-menu-format contains unknown format "
+ "sequence '%%%c'", G_STRFUNC, *format);
+ break;
+ }
+ break;
+
+ default:
+ buffer[i++] = *format;
+ break;
+ }
+
+ format++;
+ }
+
+ buffer[MIN (i, sizeof (buffer) - 1)] = 0;
+
+ return g_strdup (buffer);
+}
+
+/*
+ * GTK_TYPE_PARAM_UNIT
+ */
+
+#define GTK_PARAM_SPEC_UNIT(pspec) (G_TYPE_CHECK_INSTANCE_CAST ((pspec), GTK_TYPE_PARAM_UNIT, GtkParamSpecUnit))
+
+typedef struct _GtkParamSpecUnit GtkParamSpecUnit;
+
+struct _GtkParamSpecUnit
+{
+ GParamSpecInt parent_instance;
+
+ gboolean allow_percent;
+};
+
+static void gtk_param_unit_class_init (GParamSpecClass *class);
+static gboolean gtk_param_unit_value_validate (GParamSpec *pspec,
+ GValue *value);
+
+/**
+ * gtk_param_unit_get_type:
+ *
+ * Reveals the object type
+ *
+ * Returns: the #GType for a unit param object
+ *
+ * Since: GTK 2.4
+ **/
+GType
+gtk_param_unit_get_type (void)
+{
+ static GType spec_type = 0;
+
+ if (! spec_type)
+ {
+ const GTypeInfo type_info =
+ {
+ sizeof (GParamSpecClass),
+ NULL, NULL,
+ (GClassInitFunc) gtk_param_unit_class_init,
+ NULL, NULL,
+ sizeof (GtkParamSpecUnit),
+ 0, NULL, NULL
+ };
+
+ spec_type = g_type_register_static (G_TYPE_PARAM_INT,
+ "GtkParamUnit",
+ &type_info, 0);
+ }
+
+ return spec_type;
+}
+
+static void
+gtk_param_unit_class_init (GParamSpecClass *class)
+{
+ class->value_type = GTK_TYPE_UNIT;
+ class->value_validate = gtk_param_unit_value_validate;
+}
+
+static gboolean
+gtk_param_unit_value_validate (GParamSpec *pspec,
+ GValue *value)
+{
+ GParamSpecInt *ispec = G_PARAM_SPEC_INT (pspec);
+ GtkParamSpecUnit *uspec = GTK_PARAM_SPEC_UNIT (pspec);
+ gint oval = value->data[0].v_int;
+
+ if (uspec->allow_percent && value->data[0].v_int == CM_UNIT_PERCENT)
+ {
+ value->data[0].v_int = value->data[0].v_int;
+ }
+ else
+ {
+ value->data[0].v_int = CLAMP (value->data[0].v_int,
+ ispec->minimum,
+ gtk_unit_get_number_of_units () - 1);
+ }
+
+ return value->data[0].v_int != oval;
+}
+
+/**
+ * gtk_param_spec_unit:
+ * @name: Canonical name of the param
+ * @nick: Nickname of the param
+ * @blurb: Brief desciption of param.
+ * @allow_pixels: Whether "pixels" is an allowed unit.
+ * @allow_percent: Whether "perecent" is an allowed unit.
+ * @default_value: Unit to use if none is assigned.
+ * @flags: a combination of #GParamFlags
+ *
+ * Creates a param spec to hold a units param.
+ * See g_param_spec_internal() for more information.
+ *
+ * Returns: a newly allocated #GParamSpec instance
+ *
+ * Since: GTK 2.4
+ **/
+GParamSpec *
+gtk_param_spec_unit (const gchar *name,
+ const gchar *nick,
+ const gchar *blurb,
+ gboolean allow_pixels,
+ gboolean allow_percent,
+ GtkCMUnit default_value,
+ GParamFlags flags)
+{
+ GtkParamSpecUnit *pspec;
+ GParamSpecInt *ispec;
+
+ pspec = g_param_spec_internal (GTK_TYPE_PARAM_UNIT,
+ name, nick, blurb, flags);
+
+ ispec = G_PARAM_SPEC_INT (pspec);
+
+ ispec->default_value = default_value;
+ ispec->minimum = allow_pixels ? CM_UNIT_PIXEL : CM_UNIT_INCH;
+ ispec->maximum = CM_UNIT_PERCENT - 1;
+
+ pspec->allow_percent = allow_percent;
+
+ return G_PARAM_SPEC (pspec);
+}
+
+/**
+ * gtk_pixels_to_units:
+ * @pixels: value in pixels
+ * @unit: unit to convert to
+ * @resolution: resloution in DPI
+ *
+ * Converts a @value specified in pixels to @unit.
+ *
+ * Returns: @pixels converted to units.
+ *
+ * Since: GTK 2.8
+ **/
+gdouble
+gtk_pixels_to_units (gdouble pixels,
+ GtkCMUnit unit,
+ gdouble resolution)
+{
+ if (unit == CM_UNIT_PIXEL)
+ return pixels;
+
+ return pixels * gtk_unit_get_factor (unit) / resolution;
+}
+
+/**
+ * gtk_units_to_pixels:
+ * @value: value in units
+ * @unit: unit of @value
+ * @resolution: resloution in DPI
+ *
+ * Converts a @value specified in @unit to pixels.
+ *
+ * Returns: @value converted to pixels.
+ *
+ * Since: GTK 2.8
+ **/
+gdouble
+gtk_units_to_pixels (gdouble value,
+ GtkCMUnit unit,
+ gdouble resolution)
+{
+ if (unit == CM_UNIT_PIXEL)
+ return value;
+
+ return value * resolution / gtk_unit_get_factor (unit);
+}
+
+/**
+ * gtk_units_to_points:
+ * @value: value in units
+ * @unit: unit of @value
+ * @resolution: resloution in DPI
+ *
+ * Converts a @value specified in @unit to points.
+ *
+ * Returns: @value converted to points.
+ *
+ * Since: GTK 2.8
+ **/
+gdouble
+gtk_units_to_points (gdouble value,
+ GtkCMUnit unit,
+ gdouble resolution)
+{
+ if (unit == CM_UNIT_POINT)
+ return value;
+
+ if (unit == CM_UNIT_PIXEL)
+ return (value * gtk_unit_get_factor (CM_UNIT_POINT) / resolution);
+
+ return (value *
+ gtk_unit_get_factor (CM_UNIT_POINT) / gtk_unit_get_factor (unit));
+}
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