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-rw-r--r--widgets/misc/e-map.c1803
1 files changed, 0 insertions, 1803 deletions
diff --git a/widgets/misc/e-map.c b/widgets/misc/e-map.c
deleted file mode 100644
index de9d96d009..0000000000
--- a/widgets/misc/e-map.c
+++ /dev/null
@@ -1,1803 +0,0 @@
-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
-/* Map widget.
- *
- * Copyright (C) 2000-2001 Ximian, Inc.
- *
- * Authors: Hans Petter Jansson <hpj@ximian.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * This program 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
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public
- * License along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#include <config.h>
-#include <math.h>
-#include <stdlib.h>
-#include <gdk/gdkkeysyms.h>
-#include <gtk/gtksignal.h>
-#include <gdk-pixbuf/gdk-pixbuf.h>
-#include <libart_lgpl/art_filterlevel.h>
-
-#include "e-map.h"
-
-/* Scroll step increment */
-
-#define SCROLL_STEP_SIZE 32
-
-
-/* */
-
-#define E_MAP_GET_WIDTH(map) gdk_pixbuf_get_width(((EMapPrivate *) E_MAP(map)->priv)->map_render_pixbuf)
-#define E_MAP_GET_HEIGHT(map) gdk_pixbuf_get_height(((EMapPrivate *) E_MAP(map)->priv)->map_render_pixbuf)
-
-
-/* Zoom state - keeps track of animation hacks */
-
-typedef enum
-{
- E_MAP_ZOOMED_IN,
- E_MAP_ZOOMED_OUT,
- E_MAP_ZOOMING_IN,
- E_MAP_ZOOMING_OUT
-}
-EMapZoomState;
-
-
-/* Private part of the EMap structure */
-
-typedef struct
-{
- /* Pointer to map image */
- GdkPixbuf *map_pixbuf, *map_render_pixbuf;
-
- /* Settings */
- gboolean frozen, smooth_zoom;
-
- /* Adjustments for scrolling */
- GtkAdjustment *hadj;
- GtkAdjustment *vadj;
-
- /* Current scrolling offsets */
- int xofs, yofs;
-
- /* Realtime zoom data */
- EMapZoomState zoom_state;
- double zoom_target_long, zoom_target_lat;
-
- /* Dots */
- GPtrArray *points;
-}
-EMapPrivate;
-
-
-/* Signal IDs */
-
-enum
-{
- LAST_SIGNAL
-};
-
-static guint e_map_signals[LAST_SIGNAL];
-
-
-/* Internal prototypes */
-
-static void e_map_class_init (EMapClass *class);
-static void e_map_init (EMap *view);
-static void e_map_destroy (GtkObject *object);
-static void e_map_finalize (GtkObject *object);
-static void e_map_unmap (GtkWidget *widget);
-static void e_map_realize (GtkWidget *widget);
-static void e_map_unrealize (GtkWidget *widget);
-static void e_map_size_request (GtkWidget *widget, GtkRequisition *requisition);
-static void e_map_size_allocate (GtkWidget *widget, GtkAllocation *allocation);
-static void e_map_draw (GtkWidget *widget, GdkRectangle *area);
-static gint e_map_button_press (GtkWidget *widget, GdkEventButton *event);
-static gint e_map_button_release (GtkWidget *widget, GdkEventButton *event);
-static gint e_map_motion (GtkWidget *widget, GdkEventMotion *event);
-static gint e_map_expose (GtkWidget *widget, GdkEventExpose *event);
-static gint e_map_key_press (GtkWidget *widget, GdkEventKey *event);
-static void e_map_set_scroll_adjustments (GtkWidget *widget, GtkAdjustment *hadj, GtkAdjustment *vadj);
-
-static void update_render_pixbuf (EMap *map, ArtFilterLevel interp, gboolean render_overlays);
-static void set_scroll_area (EMap *view);
-static void request_paint_area (EMap *view, GdkRectangle *area);
-static void center_at (EMap *map, int x, int y, gboolean scroll);
-static void smooth_center_at (EMap *map, int x, int y);
-static void scroll_to (EMap *view, int x, int y);
-static void zoom_do (EMap *map);
-static gint load_map_background (EMap *view, gchar *name);
-static void adjustment_changed_cb (GtkAdjustment *adj, gpointer data);
-static void update_and_paint (EMap *map);
-static void update_render_point (EMap *map, EMapPoint *point);
-static void repaint_point (EMap *map, EMapPoint *point);
-
-static GtkWidgetClass *parent_class;
-
-
-/* ----------------- *
- * Widget management *
- * ----------------- */
-
-
-/**
- * e_map_get_type:
- * @void:
- *
- * Registers the #EMap class if necessary, and returns the type ID
- * associated to it.
- *
- * Return value: The type ID of the #EMap class.
- **/
-
-GtkType
-e_map_get_type (void)
-{
- static GtkType e_map_type = 0;
-
- if (!e_map_type)
- {
- static const GtkTypeInfo e_map_info =
- {
- "EMap",
- sizeof (EMap),
- sizeof (EMapClass),
- (GtkClassInitFunc) e_map_class_init,
- (GtkObjectInitFunc) e_map_init,
- NULL, /* reserved_1 */
- NULL, /* reserved_2 */
- (GtkClassInitFunc) NULL
- };
-
- e_map_type = gtk_type_unique (GTK_TYPE_WIDGET, &e_map_info);
- }
-
- return e_map_type;
-}
-
-/* Class initialization function for the map view */
-
-static void
-e_map_class_init (EMapClass *class)
-{
- GtkObjectClass *object_class;
- GtkWidgetClass *widget_class;
-
- object_class = (GtkObjectClass *) class;
- widget_class = (GtkWidgetClass *) class;
-
- parent_class = gtk_type_class (GTK_TYPE_WIDGET);
-
- object_class->destroy = e_map_destroy;
- object_class->finalize = e_map_finalize;
-
- class->set_scroll_adjustments = e_map_set_scroll_adjustments;
- widget_class->set_scroll_adjustments_signal = gtk_signal_new ("set_scroll_adjustments", GTK_RUN_LAST, object_class->type, GTK_SIGNAL_OFFSET (EMapClass, set_scroll_adjustments), gtk_marshal_NONE__POINTER_POINTER, GTK_TYPE_NONE, 2, GTK_TYPE_ADJUSTMENT, GTK_TYPE_ADJUSTMENT);
-
- gtk_object_class_add_signals (object_class, e_map_signals, LAST_SIGNAL);
-
- widget_class->unmap = e_map_unmap;
- widget_class->realize = e_map_realize;
- widget_class->unrealize = e_map_unrealize;
- widget_class->size_request = e_map_size_request;
- widget_class->size_allocate = e_map_size_allocate;
- widget_class->draw = e_map_draw;
- widget_class->button_press_event = e_map_button_press;
- widget_class->button_release_event = e_map_button_release;
- widget_class->motion_notify_event = e_map_motion;
- widget_class->expose_event = e_map_expose;
- widget_class->key_press_event = e_map_key_press;
-}
-
-
-/* Object initialization function for the map view */
-
-static void
-e_map_init (EMap *view)
-{
- EMapPrivate *priv;
-
- priv = g_new0 (EMapPrivate, 1);
- view->priv = priv;
-
- load_map_background (view, MAP_DIR"/world_map-960.png");
- priv->frozen = FALSE;
- priv->smooth_zoom = TRUE;
- priv->zoom_state = E_MAP_ZOOMED_OUT;
- priv->points = g_ptr_array_new ();
-
- GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS);
- GTK_WIDGET_UNSET_FLAGS (view, GTK_NO_WINDOW);
-}
-
-
-/* Destroy handler for the map view */
-
-static void
-e_map_destroy (GtkObject *object)
-{
- EMap *view;
- EMapPrivate *priv;
-
- g_return_if_fail (object != NULL);
- g_return_if_fail (IS_E_MAP (object));
-
- view = E_MAP (object);
- priv = view->priv;
-
- gtk_signal_disconnect_by_data (GTK_OBJECT (priv->hadj), view);
- gtk_signal_disconnect_by_data (GTK_OBJECT (priv->vadj), view);
-
- if (GTK_OBJECT_CLASS (parent_class)->destroy)
- (*GTK_OBJECT_CLASS (parent_class)->destroy) (object);
-}
-
-
-/* Finalize handler for the map view */
-
-static void
-e_map_finalize (GtkObject *object)
-{
- EMap *view;
- EMapPrivate *priv;
-
- g_return_if_fail (object != NULL);
- g_return_if_fail (IS_E_MAP (object));
-
- view = E_MAP (object);
- priv = view->priv;
-
- gtk_object_unref (GTK_OBJECT (priv->hadj));
- priv->hadj = NULL;
-
- gtk_object_unref (GTK_OBJECT (priv->vadj));
- priv->vadj = NULL;
-
- if (priv->map_pixbuf)
- {
- gdk_pixbuf_unref (priv->map_pixbuf);
- priv->map_pixbuf = NULL;
- }
-
- if (priv->map_render_pixbuf)
- {
- gdk_pixbuf_unref (priv->map_render_pixbuf);
- priv->map_render_pixbuf = NULL;
- }
-
- g_free (priv);
- view->priv = NULL;
-
- if (GTK_OBJECT_CLASS (parent_class)->finalize)
- (*GTK_OBJECT_CLASS (parent_class)->finalize) (object);
-}
-
-
-/* Unmap handler for the map view */
-
-static void
-e_map_unmap (GtkWidget *widget)
-{
- g_return_if_fail (widget != NULL);
- g_return_if_fail (IS_E_MAP (widget));
-
- if (GTK_WIDGET_CLASS (parent_class)->unmap)
- (*GTK_WIDGET_CLASS (parent_class)->unmap) (widget);
-}
-
-
-/* Realize handler for the map view */
-
-static void
-e_map_realize (GtkWidget *widget)
-{
- GdkWindowAttr attr;
- int attr_mask;
-
- g_return_if_fail (widget != NULL);
- g_return_if_fail (IS_E_MAP (widget));
-
- GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
-
- attr.window_type = GDK_WINDOW_CHILD;
- attr.x = widget->allocation.x;
- attr.y = widget->allocation.y;
- attr.width = widget->allocation.width;
- attr.height = widget->allocation.height;
- attr.wclass = GDK_INPUT_OUTPUT;
- attr.visual = gdk_rgb_get_visual ();
- attr.colormap = gdk_rgb_get_cmap ();
- attr.event_mask = gtk_widget_get_events (widget) |
- GDK_EXPOSURE_MASK | GDK_BUTTON_PRESS_MASK | GDK_KEY_PRESS_MASK |
- GDK_POINTER_MOTION_MASK;
-
- attr_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
-
- widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attr, attr_mask);
- gdk_window_set_user_data (widget->window, widget);
-
- widget->style = gtk_style_attach (widget->style, widget->window);
-
- gdk_window_set_back_pixmap (widget->window, NULL, FALSE);
- update_render_pixbuf (E_MAP (widget), GDK_INTERP_BILINEAR, TRUE);
-}
-
-
-/* Unrealize handler for the map view */
-
-static void
-e_map_unrealize (GtkWidget *widget)
-{
- g_return_if_fail (widget != NULL);
- g_return_if_fail (IS_E_MAP (widget));
-
- if (GTK_WIDGET_CLASS (parent_class)->unrealize)
- (*GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
-}
-
-
-/* Size_request handler for the map view */
-
-static void
-e_map_size_request (GtkWidget *widget, GtkRequisition *requisition)
-{
- EMap *view;
- EMapPrivate *priv;
-
- g_return_if_fail (widget != NULL);
- g_return_if_fail (IS_E_MAP (widget));
- g_return_if_fail (requisition != NULL);
-
- view = E_MAP (widget);
- priv = view->priv;
-
- /* TODO: Put real sizes here. */
-
- requisition->width = gdk_pixbuf_get_width (priv->map_pixbuf);
- requisition->height = gdk_pixbuf_get_height (priv->map_pixbuf);
-}
-
-
-/* Size_allocate handler for the map view */
-
-static void
-e_map_size_allocate (GtkWidget *widget, GtkAllocation *allocation)
-{
- EMap *view;
- EMapPrivate *priv;
- int xofs, yofs;
- GdkRectangle area;
-
- g_return_if_fail (widget != NULL);
- g_return_if_fail (IS_E_MAP (widget));
- g_return_if_fail (allocation != NULL);
-
- view = E_MAP (widget);
- priv = view->priv;
-
- xofs = priv->xofs;
- yofs = priv->yofs;
-
- /* Resize the window */
-
- widget->allocation = *allocation;
-
- if (GTK_WIDGET_REALIZED (widget))
- {
- gdk_window_move_resize (widget->window, allocation->x, allocation->y, allocation->width, allocation->height);
-
- area.x = 0;
- area.y = 0;
- area.width = allocation->width;
- area.height = allocation->height;
- request_paint_area (E_MAP (widget), &area);
- }
-
- update_render_pixbuf (view, GDK_INTERP_BILINEAR, TRUE);
-}
-
-
-/* Draw handler for the map view */
-
-static void
-e_map_draw (GtkWidget *widget, GdkRectangle *area)
-{
- EMap *view;
-
- g_return_if_fail (widget != NULL);
- g_return_if_fail (IS_E_MAP (widget));
- g_return_if_fail (area != NULL);
-
- view = E_MAP (widget);
-
- request_paint_area (view, area);
-}
-
-
-/* Button press handler for the map view */
-
-static gint
-e_map_button_press (GtkWidget *widget, GdkEventButton *event)
-{
- EMap *view;
- EMapPrivate *priv;
-
- view = E_MAP (widget);
- priv = view->priv;
-
- if (!GTK_WIDGET_HAS_FOCUS (widget)) gtk_widget_grab_focus (widget);
- return TRUE;
-}
-
-
-/* Button release handler for the map view */
-
-static gint
-e_map_button_release (GtkWidget *widget, GdkEventButton *event)
-{
- EMap *view;
- EMapPrivate *priv;
-
- view = E_MAP (widget);
- priv = view->priv;
-
- if (event->button != 1) return FALSE;
-
- gdk_pointer_ungrab (event->time);
- return TRUE;
-}
-
-
-/* Motion handler for the map view */
-
-static gint
-e_map_motion (GtkWidget *widget, GdkEventMotion *event)
-{
- EMap *view;
- EMapPrivate *priv;
-
- view = E_MAP (widget);
- priv = view->priv;
-
- return FALSE;
-
-/*
- * if (event->is_hint)
- * gdk_window_get_pointer(widget->window, &x, &y, &mods);
- * else
- * {
- * x = event->x;
- * y = event->y;
- * }
- *
- * return TRUE;
- */
-}
-
-
-/* Expose handler for the map view */
-
-static gint
-e_map_expose (GtkWidget *widget, GdkEventExpose *event)
-{
- EMap *view;
-
- g_return_val_if_fail (widget != NULL, FALSE);
- g_return_val_if_fail (IS_E_MAP (widget), FALSE);
- g_return_val_if_fail (event != NULL, FALSE);
-
- view = E_MAP (widget);
-
- request_paint_area (view, &event->area);
- return TRUE;
-}
-
-
-/* Set_scroll_adjustments handler for the map view */
-
-static void
-e_map_set_scroll_adjustments (GtkWidget *widget, GtkAdjustment *hadj, GtkAdjustment *vadj)
-{
- EMap *view;
- EMapPrivate *priv;
- gboolean need_adjust;
-
- g_return_if_fail (widget != NULL);
- g_return_if_fail (IS_E_MAP (widget));
-
- view = E_MAP (widget);
- priv = view->priv;
-
- if (hadj) g_return_if_fail (GTK_IS_ADJUSTMENT (hadj));
- else hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
-
- if (vadj) g_return_if_fail (GTK_IS_ADJUSTMENT (vadj));
- else vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
-
- if (priv->hadj && priv->hadj != hadj)
- {
- gtk_signal_disconnect_by_data (GTK_OBJECT (priv->hadj), view);
- gtk_object_unref (GTK_OBJECT (priv->hadj));
- }
-
- if (priv->vadj && priv->vadj != vadj)
- {
- gtk_signal_disconnect_by_data (GTK_OBJECT (priv->vadj), view);
- gtk_object_unref (GTK_OBJECT (priv->vadj));
- }
-
- need_adjust = FALSE;
-
- if (priv->hadj != hadj)
- {
- priv->hadj = hadj;
- gtk_object_ref (GTK_OBJECT (priv->hadj));
- gtk_object_sink (GTK_OBJECT (priv->hadj));
-
- gtk_signal_connect (GTK_OBJECT (priv->hadj), "value_changed", GTK_SIGNAL_FUNC (adjustment_changed_cb), view);
-
- need_adjust = TRUE;
- }
-
- if (priv->vadj != vadj)
- {
- priv->vadj = vadj;
- gtk_object_ref (GTK_OBJECT (priv->vadj));
- gtk_object_sink (GTK_OBJECT (priv->vadj));
-
- gtk_signal_connect (GTK_OBJECT (priv->vadj), "value_changed", GTK_SIGNAL_FUNC (adjustment_changed_cb), view);
-
- need_adjust = TRUE;
- }
-
- if (need_adjust) adjustment_changed_cb (NULL, view);
-}
-
-
-/* Key press handler for the map view */
-
-static gint
-e_map_key_press (GtkWidget *widget, GdkEventKey *event)
-{
- EMap *view;
- EMapPrivate *priv;
- gboolean do_scroll;
- int xofs, yofs;
-
- view = E_MAP (widget);
- priv = view->priv;
-
- do_scroll = FALSE;
- xofs = yofs = 0;
-
- switch (event->keyval)
- {
- case GDK_Up:
- do_scroll = TRUE;
- xofs = 0;
- yofs = -SCROLL_STEP_SIZE;
- break;
-
- case GDK_Down:
- do_scroll = TRUE;
- xofs = 0;
- yofs = SCROLL_STEP_SIZE;
- break;
-
- case GDK_Left:
- do_scroll = TRUE;
- xofs = -SCROLL_STEP_SIZE;
- yofs = 0;
- break;
-
- case GDK_Right:
- do_scroll = TRUE;
- xofs = SCROLL_STEP_SIZE;
- yofs = 0;
- break;
-
- default:
- return FALSE;
- }
-
- if (do_scroll)
- {
- int x, y;
-
- x = CLAMP (priv->xofs + xofs, 0, priv->hadj->upper - priv->hadj->page_size);
- y = CLAMP (priv->yofs + yofs, 0, priv->vadj->upper - priv->vadj->page_size);
-
- scroll_to (view, x, y);
-
- gtk_signal_handler_block_by_data (GTK_OBJECT (priv->hadj), view);
- gtk_signal_handler_block_by_data (GTK_OBJECT (priv->vadj), view);
-
- priv->hadj->value = x;
- priv->vadj->value = y;
-
- gtk_signal_emit_by_name (GTK_OBJECT (priv->hadj), "value_changed");
- gtk_signal_emit_by_name (GTK_OBJECT (priv->vadj), "value_changed");
-
- gtk_signal_handler_unblock_by_data (GTK_OBJECT (priv->hadj), view);
- gtk_signal_handler_unblock_by_data (GTK_OBJECT (priv->vadj), view);
- }
-
- return TRUE;
-}
-
-
-/* ---------------- *
- * Widget interface *
- * ---------------- */
-
-
-/**
- * e_map_new:
- * @void:
- *
- * Creates a new empty map widget.
- *
- * Return value: A newly-created map widget.
- **/
-
-EMap *
-e_map_new ()
-{
- GtkWidget *widget;
-
- widget = GTK_WIDGET (gtk_type_new (TYPE_E_MAP));
- return (E_MAP (widget));
-}
-
-
-/* --- Coordinate translation --- */
-
-
-/* These functions translate coordinates between longitude/latitude and
- * the image x/y offsets, using the equidistant cylindrical projection.
- *
- * Longitude E <-180, 180]
- * Latitude E <-90, 90] */
-
-void
-e_map_window_to_world (EMap *map, double win_x, double win_y, double *world_longitude, double *world_latitude)
-{
- EMapPrivate *priv;
- int width, height;
-
- g_return_if_fail (map);
-
- priv = map->priv;
- g_return_if_fail (GTK_WIDGET_REALIZED (GTK_WIDGET (map)));
-
- width = gdk_pixbuf_get_width (priv->map_render_pixbuf);
- height = gdk_pixbuf_get_height (priv->map_render_pixbuf);
-
- *world_longitude = (win_x + priv->xofs - (double) width / 2.0) /
- ((double) width / 2.0) * 180.0;
- *world_latitude = ((double) height / 2.0 - win_y - priv->yofs) /
- ((double) height / 2.0) * 90.0;
-}
-
-
-void
-e_map_world_to_window (EMap *map, double world_longitude, double world_latitude, double *win_x, double *win_y)
-{
- EMapPrivate *priv;
- int width, height;
-
- g_return_if_fail (map);
-
- priv = map->priv;
- g_return_if_fail (priv->map_render_pixbuf);
- g_return_if_fail (world_longitude >= -180.0 && world_longitude <= 180.0);
- g_return_if_fail (world_latitude >= -90.0 && world_latitude <= 90.0);
-
- width = gdk_pixbuf_get_width (priv->map_render_pixbuf);
- height = gdk_pixbuf_get_height (priv->map_render_pixbuf);
-
- *win_x = (width / 2.0 + (width / 2.0) * world_longitude / 180.0) - priv->xofs;
- *win_y = (height / 2.0 - (height / 2.0) * world_latitude / 90.0) - priv->yofs;
-
-#ifdef DEBUG
- printf ("Map size: (%d, %d)\nCoords: (%.1f, %.1f) -> (%.1f, %.1f)\n---\n", width, height, world_longitude, world_latitude, *win_x, *win_y);
-#endif
-}
-
-
-/* --- Zoom --- */
-
-
-double
-e_map_get_magnification (EMap *map)
-{
- EMapPrivate *priv;
-
- priv = map->priv;
- if (priv->zoom_state == E_MAP_ZOOMED_IN) return 2.0;
- else return 1.0;
-}
-
-
-void
-e_map_zoom_to_location (EMap *map, double longitude, double latitude)
-{
- EMapPrivate *priv;
- int width, height;
-
- g_return_if_fail (map);
- g_return_if_fail (GTK_WIDGET_REALIZED (GTK_WIDGET (map)));
-
- priv = map->priv;
-
- if (priv->zoom_state == E_MAP_ZOOMED_IN) e_map_zoom_out (map);
- else if (priv->zoom_state != E_MAP_ZOOMED_OUT) return;
-
- width = gdk_pixbuf_get_width (priv->map_render_pixbuf);
- height = gdk_pixbuf_get_height (priv->map_render_pixbuf);
-
- priv->zoom_state = E_MAP_ZOOMING_IN;
- priv->zoom_target_long = longitude;
- priv->zoom_target_lat = latitude;
-
- zoom_do (map);
-}
-
-
-void
-e_map_zoom_out (EMap *map)
-{
- EMapPrivate *priv;
- int width, height;
-
- g_return_if_fail (map);
- g_return_if_fail (GTK_WIDGET_REALIZED (GTK_WIDGET (map)));
-
- priv = map->priv;
-
- if (priv->zoom_state != E_MAP_ZOOMED_IN) return;
-
- width = gdk_pixbuf_get_width (priv->map_render_pixbuf);
- height = gdk_pixbuf_get_height (priv->map_render_pixbuf);
-
- priv->zoom_state = E_MAP_ZOOMING_OUT;
- zoom_do (map);
- priv->zoom_state = E_MAP_ZOOMED_OUT;
-}
-
-
-void
-e_map_set_smooth_zoom (EMap *map, gboolean state)
-{
- ((EMapPrivate *) map->priv)->smooth_zoom = state;
-}
-
-
-gboolean
-e_map_get_smooth_zoom (EMap *map)
-{
- return (((EMapPrivate *) map->priv)->smooth_zoom);
-}
-
-
-void
-e_map_freeze (EMap *map)
-{
- ((EMapPrivate *) map->priv)->frozen = TRUE;
-}
-
-
-void
-e_map_thaw (EMap *map)
-{
- ((EMapPrivate *) map->priv)->frozen = FALSE;
- update_and_paint (map);
-}
-
-
-/* --- Point manipulation --- */
-
-
-EMapPoint *
-e_map_add_point (EMap *map, gchar *name, double longitude, double latitude, guint32 color_rgba)
-{
- EMapPrivate *priv;
- EMapPoint *point;
-
- priv = map->priv;
- point = g_new0 (EMapPoint, 1);
-
- point->name = name; /* Can be NULL */
- point->longitude = longitude;
- point->latitude = latitude;
- point->rgba = color_rgba;
-
- g_ptr_array_add (priv->points, (gpointer) point);
-
- if (!priv->frozen)
- {
- update_render_point (map, point);
- repaint_point (map, point);
- }
-
- return point;
-}
-
-
-void
-e_map_remove_point (EMap *map, EMapPoint *point)
-{
- EMapPrivate *priv;
-
- priv = map->priv;
- g_ptr_array_remove (priv->points, point);
-
- if (!((EMapPrivate *) map->priv)->frozen)
- {
- /* FIXME: Re-scaling the whole pixbuf is more than a little
- * overkill when just one point is removed */
-
- update_render_pixbuf (map, GDK_INTERP_BILINEAR, TRUE);
- repaint_point (map, point);
- }
-
- g_free (point);
-}
-
-
-void
-e_map_point_get_location (EMapPoint *point, double *longitude, double *latitude)
-{
- *longitude = point->longitude;
- *latitude = point->latitude;
-}
-
-
-gchar *
-e_map_point_get_name (EMapPoint *point)
-{
- return point->name;
-}
-
-
-guint32
-e_map_point_get_color_rgba (EMapPoint *point)
-{
- return point->rgba;
-}
-
-
-void
-e_map_point_set_color_rgba (EMap *map, EMapPoint *point, guint32 color_rgba)
-{
- point->rgba = color_rgba;
-
- if (!((EMapPrivate *) map->priv)->frozen)
- {
- /* TODO: Redraw area around point only */
-
- update_render_point (map, point);
- repaint_point (map, point);
- }
-}
-
-
-void
-e_map_point_set_data (EMapPoint *point, gpointer data)
-{
- point->user_data = data;
-}
-
-
-gpointer
-e_map_point_get_data (EMapPoint *point)
-{
- return point->user_data;
-}
-
-
-gboolean
-e_map_point_is_in_view (EMap *map, EMapPoint *point)
-{
- EMapPrivate *priv;
- double x, y;
-
- priv = map->priv;
- if (!priv->map_render_pixbuf) return FALSE;
-
- e_map_world_to_window (map, point->longitude, point->latitude, &x, &y);
-
- if (x >= 0 && x < GTK_WIDGET (map)->allocation.width &&
- y >= 0 && y < GTK_WIDGET (map)->allocation.height)
- return TRUE;
-
- return FALSE;
-}
-
-
-EMapPoint *
-e_map_get_closest_point (EMap *map, double longitude, double latitude, gboolean in_view)
-{
- EMapPrivate *priv;
- EMapPoint *point_chosen = NULL, *point;
- double min_dist = 0.0, dist;
- double dx, dy;
- int i;
-
- priv = map->priv;
-
- for (i = 0; i < priv->points->len; i++)
- {
- point = g_ptr_array_index (priv->points, i);
- if (in_view && !e_map_point_is_in_view (map, point)) continue;
-
- dx = point->longitude - longitude;
- dy = point->latitude - latitude;
- dist = dx * dx + dy * dy;
-
- if (!point_chosen || dist < min_dist)
- {
- min_dist = dist;
- point_chosen = point;
- }
- }
-
- return point_chosen;
-}
-
-
-/* ------------------ *
- * Internal functions *
- * ------------------ */
-
-
-static void
-repaint_visible (EMap *map)
-{
- GdkRectangle area;
-
- area.x = 0;
- area.y = 0;
- area.width = GTK_WIDGET (map)->allocation.width;
- area.height = GTK_WIDGET (map)->allocation.height;
-
- request_paint_area (map, &area);
-}
-
-
-static void
-update_and_paint (EMap *map)
-{
- update_render_pixbuf (map, GDK_INTERP_BILINEAR, TRUE);
- repaint_visible (map);
-}
-
-
-static gint
-load_map_background (EMap *view, gchar *name)
-{
- EMapPrivate *priv;
- GdkPixbuf *pb0;
-
- priv = view->priv;
-
- pb0 = gdk_pixbuf_new_from_file (name);
-/* pb0 = tool_load_image (name);*/
- if (!pb0) return (FALSE);
-
- if (priv->map_pixbuf) gdk_pixbuf_unref (priv->map_pixbuf);
- priv->map_pixbuf = pb0;
- update_render_pixbuf (view, GDK_INTERP_BILINEAR, TRUE);
-
- return (TRUE);
-}
-
-
-static void
-update_render_pixbuf (EMap *map, ArtFilterLevel interp, gboolean render_overlays)
-{
- EMapPrivate *priv;
- EMapPoint *point;
- int width, height, orig_width, orig_height;
- double zoom;
- int i;
-
- if (!GTK_WIDGET_REALIZED (GTK_WIDGET (map))) return;
-
- /* Set up value shortcuts */
-
- priv = map->priv;
- width = GTK_WIDGET (map)->allocation.width;
- height = GTK_WIDGET (map)->allocation.height;
- orig_width = gdk_pixbuf_get_width (priv->map_pixbuf);
- orig_height = gdk_pixbuf_get_height (priv->map_pixbuf);
-
- /* Compute scaled width and height based on the extreme dimension */
-
- if ((double) width / orig_width > (double) height / orig_height)
- {
- zoom = (double) width / (double) orig_width;
- }
- else
- {
- zoom = (double) height / (double) orig_height;
- }
-
- if (priv->zoom_state == E_MAP_ZOOMED_IN) zoom *= 2.0;
- height = (orig_height * zoom) + 0.5;
- width = (orig_width * zoom) + 0.5;
-
- /* Reallocate the pixbuf */
-
- if (priv->map_render_pixbuf) gdk_pixbuf_unref (priv->map_render_pixbuf);
- priv->map_render_pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, /* No alpha */
- 8, width, height);
-
- /* Scale the original map into the rendering pixbuf */
-
- if (width > 1 && height > 1)
- {
- gdk_pixbuf_scale (priv->map_pixbuf, priv->map_render_pixbuf, 0, 0, /* Dest (x, y) */
- width, height, 0, 0, /* Offset (x, y) */
- zoom, zoom, /* Scale (x, y) */
- interp);
- }
-
- if (render_overlays)
- {
- /* Add points */
-
- for (i = 0; i < priv->points->len; i++)
- {
- point = g_ptr_array_index (priv->points, i);
- update_render_point (map, point);
- }
- }
-
- /* Compute image offsets with respect to window */
-
- set_scroll_area (map);
-}
-
-
-/* Queues a repaint of the specified area in window coordinates */
-
-static void
-request_paint_area (EMap *view, GdkRectangle *area)
-{
- EMapPrivate *priv;
- int width, height;
-
- if (!GTK_WIDGET_DRAWABLE (GTK_WIDGET (view)) ||
- !GTK_WIDGET_REALIZED (GTK_WIDGET (view))) return;
-
- priv = view->priv;
- if (!priv->map_render_pixbuf) return;
-
- width = MIN (area->width, E_MAP_GET_WIDTH (view));
- height = MIN (area->height, E_MAP_GET_HEIGHT (view));
-
- /* This satisfies paranoia. To be removed */
-
- if (priv->xofs + width > gdk_pixbuf_get_width (priv->map_render_pixbuf))
- width = gdk_pixbuf_get_width (priv->map_render_pixbuf) - priv->xofs;
-
- if (priv->yofs + height > gdk_pixbuf_get_height (priv->map_render_pixbuf))
- height = gdk_pixbuf_get_height (priv->map_render_pixbuf) - priv->yofs;
-
- /* We rely on the fast case always being the case, since we load and
- * preprocess the source pixbuf ourselves */
-
- if (gdk_pixbuf_get_colorspace (priv->map_render_pixbuf) == GDK_COLORSPACE_RGB && !gdk_pixbuf_get_has_alpha (priv->map_render_pixbuf) &&
- gdk_pixbuf_get_bits_per_sample (priv->map_render_pixbuf) == 8)
- {
- guchar *pixels;
- int rowstride;
-
- rowstride = gdk_pixbuf_get_rowstride (priv->map_render_pixbuf);
- pixels = gdk_pixbuf_get_pixels (priv->map_render_pixbuf) + (area->y + priv->yofs) * rowstride + 3 * (area->x + priv->xofs);
- gdk_draw_rgb_image_dithalign (GTK_WIDGET (view)->window, GTK_WIDGET (view)->style->black_gc, area->x, area->y, width, height, GDK_RGB_DITHER_NORMAL, pixels, rowstride, 0, 0);
- return;
- }
-
-#ifdef DEBUG
- g_print ("Doing hard redraw.\n");
-#endif
-}
-
-static void
-put_pixel_with_clipping (GdkPixbuf *pixbuf, gint x, gint y, guint rgba)
-{
- gint width, height;
- gint rowstride, n_channels;
- guchar *pixels, *pixel;
-
- width = gdk_pixbuf_get_width (pixbuf);
- height = gdk_pixbuf_get_height (pixbuf);
- rowstride = gdk_pixbuf_get_rowstride (pixbuf);
- n_channels = gdk_pixbuf_get_n_channels (pixbuf);
- pixels = gdk_pixbuf_get_pixels (pixbuf);
-
- if (x < 0 || x >= width || y < 0 || y >= height)
- return;
-
- pixel = pixels + (y * rowstride) + (x * n_channels);
-
- *pixel = (rgba >> 24);
- *(pixel + 1) = (rgba >> 16) & 0x000000ff;
- *(pixel + 2) = (rgba >> 8) & 0x000000ff;
-
- if (n_channels > 3)
- {
- *(pixel + 3) = rgba & 0x000000ff;
- }
-}
-
-
-/* Redraw point in client pixbuf */
-
-static void
-update_render_point (EMap *map, EMapPoint *point)
-{
- EMapPrivate *priv;
- GdkPixbuf *pb;
- int width, height;
- double px, py;
-
- priv = map->priv;
- pb = priv->map_render_pixbuf;
- if (!pb) return;
-
- width = gdk_pixbuf_get_width (pb);
- height = gdk_pixbuf_get_height (pb);
-
- e_map_world_to_window (map, point->longitude, point->latitude, &px, &py);
- px += priv->xofs;
- py += priv->yofs;
-
- put_pixel_with_clipping (pb, px, py, point->rgba);
- put_pixel_with_clipping (pb, px - 1, py, point->rgba);
- put_pixel_with_clipping (pb, px + 1, py, point->rgba);
- put_pixel_with_clipping (pb, px, py - 1, point->rgba);
- put_pixel_with_clipping (pb, px, py + 1, point->rgba);
-
- put_pixel_with_clipping (pb, px - 2, py, 0x000000ff);
- put_pixel_with_clipping (pb, px + 2, py, 0x000000ff);
- put_pixel_with_clipping (pb, px, py - 2, 0x000000ff);
- put_pixel_with_clipping (pb, px, py + 2, 0x000000ff);
- put_pixel_with_clipping (pb, px - 1, py - 1, 0x000000ff);
- put_pixel_with_clipping (pb, px - 1, py + 1, 0x000000ff);
- put_pixel_with_clipping (pb, px + 1, py - 1, 0x000000ff);
- put_pixel_with_clipping (pb, px + 1, py + 1, 0x000000ff);
-}
-
-
-/* Repaint point on X server */
-
-static void
-repaint_point (EMap *map, EMapPoint *point)
-{
- EMapPrivate *priv;
- GdkRectangle area;
- double px, py;
-
- if (!e_map_point_is_in_view (map, point)) return;
- priv = map->priv;
-
- e_map_world_to_window (map, point->longitude, point->latitude, &px, &py);
-
- area.x = (int) px - 2;
- area.y = (int) py - 2;
- area.width = 5;
- area.height = 5;
- request_paint_area (map, &area);
-}
-
-
-static void
-center_at (EMap *map, int x, int y, gboolean scroll)
-{
- EMapPrivate *priv;
- int pb_width, pb_height,
- view_width, view_height;
-
- priv = map->priv;
-
- pb_width = E_MAP_GET_WIDTH (map);
- pb_height = E_MAP_GET_HEIGHT (map);
-
- view_width = GTK_WIDGET (map)->allocation.width;
- view_height = GTK_WIDGET (map)->allocation.height;
-
- x = CLAMP (x - (view_width / 2), 0, pb_width - view_width);
- y = CLAMP (y - (view_height / 2), 0, pb_height - view_height);
-
- if (scroll) scroll_to (map, x, y);
- else
- {
- priv->xofs = x;
- priv->yofs = y;
- }
-}
-
-
-static void
-smooth_center_at (EMap *map, int x, int y)
-{
- EMapPrivate *priv;
- int pb_width, pb_height,
- view_width, view_height;
- int dx, dy;
-
- priv = map->priv;
-
- pb_width = E_MAP_GET_WIDTH (map);
- pb_height = E_MAP_GET_HEIGHT (map);
-
- view_width = GTK_WIDGET (map)->allocation.width;
- view_height = GTK_WIDGET (map)->allocation.height;
-
- x = CLAMP (x - (view_width / 2), 0, pb_width - view_width);
- y = CLAMP (y - (view_height / 2), 0, pb_height - view_height);
-
- for (;;)
- {
- if (priv->xofs == x && priv->yofs == y) break;
-
- dx = (x < priv->xofs) ? -1 : (x > priv->xofs) ? 1 : 0;
- dy = (y < priv->yofs) ? -1 : (y > priv->yofs) ? 1 : 0;
-
- scroll_to (map, priv->xofs + dx, priv->yofs + dy);
- }
-}
-
-
-/* Scrolls the view to the specified offsets. Does not perform range checking! */
-
-static void
-scroll_to (EMap *view, int x, int y)
-{
- EMapPrivate *priv;
- int xofs, yofs;
- GdkWindow *window;
- GdkGC *gc;
- int width, height;
- int src_x, src_y;
- int dest_x, dest_y;
- GdkEvent *event;
-
- priv = view->priv;
-
- /* Compute offsets and check bounds */
-
- xofs = x - priv->xofs;
- yofs = y - priv->yofs;
-
- if (xofs == 0 && yofs == 0) return;
-
- priv->xofs = x;
- priv->yofs = y;
-
- if (!GTK_WIDGET_DRAWABLE (view)) return;
-
- width = GTK_WIDGET (view)->allocation.width;
- height = GTK_WIDGET (view)->allocation.height;
-
- if (abs (xofs) >= width || abs (yofs) >= height)
- {
- GdkRectangle area;
-
- area.x = 0;
- area.y = 0;
- area.width = width;
- area.height = height;
-
- request_paint_area (view, &area);
- return;
- }
-
- window = GTK_WIDGET (view)->window;
-
- /* Copy the window area */
-
- src_x = xofs < 0 ? 0 : xofs;
- src_y = yofs < 0 ? 0 : yofs;
- dest_x = xofs < 0 ? -xofs : 0;
- dest_y = yofs < 0 ? -yofs : 0;
-
- gc = gdk_gc_new (window);
- gdk_gc_set_exposures (gc, TRUE);
-
- gdk_window_copy_area (window, gc, dest_x, dest_y, window, src_x, src_y, width - abs (xofs), height - abs (yofs));
-
- gdk_gc_destroy (gc);
-
- /* Add the scrolled-in region */
-
- if (xofs)
- {
- GdkRectangle r;
-
- r.x = xofs < 0 ? 0 : width - xofs;
- r.y = 0;
- r.width = abs (xofs);
- r.height = height;
-
- request_paint_area (view, &r);
- }
-
- if (yofs)
- {
- GdkRectangle r;
-
- r.x = 0;
- r.y = yofs < 0 ? 0 : height - yofs;
- r.width = width;
- r.height = abs (yofs);
-
- request_paint_area (view, &r);
- }
-
- /* Process graphics exposures */
-
- while ((event = gdk_event_get_graphics_expose (window)) != NULL)
- {
- gtk_widget_event (GTK_WIDGET (view), event);
-
- if (event->expose.count == 0)
- {
- gdk_event_free (event);
- break;
- }
-
- gdk_event_free (event);
- }
-}
-
-
-static int divide_seq[] =
-{
- /* Dividends for divisor of 2 */
-
- -2,
-
- 1,
-
- /* Dividends for divisor of 4 */
-
- -4,
-
- 1, 3,
-
- /* Dividends for divisor of 8 */
-
- -8,
-
- 1, 5, 3, 7,
-
- /* Dividends for divisor of 16 */
-
- -16,
-
- 1, 9, 5, 13, 3, 11, 7, 15,
-
- /* Dividends for divisor of 32 */
-
- -32,
-
- 1, 17, 9, 25, 5, 21, 13, 29, 3, 19,
- 11, 27, 7, 23, 15, 31,
-
- /* Dividends for divisor of 64 */
-
- -64,
-
- 1, 33, 17, 49, 9, 41, 25, 57, 5, 37,
- 21, 53, 13, 45, 29, 61, 3, 35, 19, 51,
- 11, 43, 27, 59, 7, 39, 23, 55, 15, 47,
- 31, 63,
-
- /* Dividends for divisor of 128 */
-
- -128,
-
- 1, 65, 33, 97, 17, 81, 49, 113, 9, 73,
- 41, 105, 25, 89, 57, 121, 5, 69, 37, 101,
- 21, 85, 53, 117, 13, 77, 45, 109, 29, 93,
- 61, 125, 3, 67, 35, 99, 19, 83, 51, 115,
- 11, 75, 43, 107, 27, 91, 59, 123, 7, 71,
- 39, 103, 23, 87, 55, 119, 15, 79, 47, 111,
- 31, 95, 63, 127,
-
- /* Dividends for divisor of 256 */
-
- -256,
-
- 1, 129, 65, 193, 33, 161, 97, 225, 17, 145,
- 81, 209, 49, 177, 113, 241, 9, 137, 73, 201,
- 41, 169, 105, 233, 25, 153, 89, 217, 57, 185,
- 121, 249, 5, 133, 69, 197, 37, 165, 101, 229,
- 21, 149, 85, 213, 53, 181, 117, 245, 13, 141,
- 77, 205, 45, 173, 109, 237, 29, 157, 93, 221,
- 61, 189, 125, 253, 3, 131, 67, 195, 35, 163,
- 99, 227, 19, 147, 83, 211, 51, 179, 115, 243,
- 11, 139, 75, 203, 43, 171, 107, 235, 27, 155,
- 91, 219, 59, 187, 123, 251, 7, 135, 71, 199,
- 39, 167, 103, 231, 23, 151, 87, 215, 55, 183,
- 119, 247, 15, 143, 79, 207, 47, 175, 111, 239,
- 31, 159, 95, 223, 63, 191, 127, 255,
-
- 0
-};
-
-
-typedef enum
-{
- AXIS_X,
- AXIS_Y
-}
-AxisType;
-
-
-static void
-blowup_window_area (GdkWindow *window, gint area_x, gint area_y, gint target_x, gint target_y, gint total_width, gint total_height, gfloat zoom_factor)
-{
- GdkGC *gc;
- AxisType strong_axis;
- gfloat axis_factor, axis_counter;
- gint zoom_chunk;
- gint divisor_width = 0, divisor_height = 0;
- gint divide_width_index, divide_height_index;
- gint area_width, area_height;
- gint i, j;
- int line;
-
-
- /* Set up the GC we'll be using */
-
- gc = gdk_gc_new (window);
- gdk_gc_set_exposures (gc, FALSE);
-
- /* Get area constraints */
-
- gdk_window_get_size (window, &area_width, &area_height);
-
- /* Initialize area division array indexes */
-
- divide_width_index = divide_height_index = 0;
-
- /* Initialize axis counter */
-
- axis_counter = 0.0;
-
- /* Find the strong axis (which is the basis for iteration) and the ratio
- * at which the other axis will be scaled.
- *
- * Also determine how many lines to expand in one fell swoop, and store
- * this figure in zoom_chunk. */
-
- if (area_width > area_height)
- {
- strong_axis = AXIS_X;
- axis_factor = (double) area_height / (double) area_width;
- zoom_chunk = MAX (1, area_width / 250);
- i = (area_width * (zoom_factor - 1.0)) / zoom_chunk;
- }
- else
- {
- strong_axis = AXIS_Y;
- axis_factor = (double) area_width / (double) area_height;
- zoom_chunk = MAX (1, area_height / 250);
- i = (area_height * (zoom_factor - 1.0)) / zoom_chunk;
- }
-
- /* Go, go, devil bunnies! Gogo devil bunnies! */
-
- for (; i > 0; i--)
- {
- /* Reset division sequence table indexes as necessary */
-
- if (!divide_seq[divide_width_index]) divide_width_index = 0;
- if (!divide_seq[divide_height_index]) divide_height_index = 0;
-
- /* Set new divisor if found in table */
-
- if (divide_seq[divide_width_index] < 0)
- divisor_width = abs (divide_seq[divide_width_index++]);
- if (divide_seq[divide_height_index] < 0)
- divisor_height = abs (divide_seq[divide_height_index++]);
-
- /* Widen */
-
- if (strong_axis == AXIS_X || axis_counter >= 1.0)
- {
- line = ((divide_seq[divide_width_index] * area_width) / divisor_width) + 0.5;
-
- if ((line < target_x && target_x > area_width / 2) || (line > target_x && target_x > (area_width / 2) + zoom_chunk))
- {
- /* Push left */
-
- for (j = 0; j < zoom_chunk - 1; j++)
- gdk_window_copy_area (window, gc, line + j + 1, 0, window, line, 0, 1, area_height);
-
- gdk_window_copy_area (window, gc, 0, 0, window, zoom_chunk, 0, line, area_height);
- if (line > target_x) target_x -= zoom_chunk;
- }
- else
- {
- /* Push right */
-
- for (j = 0; j < zoom_chunk - 1; j++)
- gdk_window_copy_area (window, gc, line + j - (zoom_chunk - 1), 0, window, line - zoom_chunk, 0, 1, area_height);
-
- gdk_window_copy_area (window, gc, line, 0, window, line - zoom_chunk, 0, area_width - line, area_height);
- if (line < target_x) target_x += zoom_chunk;
- }
- }
-
- if (strong_axis == AXIS_Y || axis_counter >= 1.0)
- {
- /* Heighten */
-
- line = ((divide_seq[divide_height_index] * area_height) / divisor_height) + 0.5;
-
- if ((line < target_y && target_y > area_height / 2) || (line > target_y && target_y > (area_height / 2) + zoom_chunk))
- {
- /* Push up */
-
- for (j = 0; j < zoom_chunk - 1; j++)
- gdk_window_copy_area (window, gc, 0, line + j + 1, window, 0, line, area_width, 1);
-
- gdk_window_copy_area (window, gc, 0, 0, window, 0, zoom_chunk, area_width, line);
- if (line > target_y) target_y -= zoom_chunk;
- }
- else
- {
- /* Push down */
-
- for (j = 0; j < zoom_chunk - 1; j++)
- gdk_window_copy_area (window, gc, 0, line + j - (zoom_chunk - 1), window, 0, line - zoom_chunk, area_width, 1);
-
- gdk_window_copy_area (window, gc, 0, line, window, 0, line - zoom_chunk, area_width, area_height - line);
- if (line < target_y) target_y += zoom_chunk;
- }
- }
-
- divide_width_index++;
- divide_height_index++;
- if (axis_counter >= 1.0) axis_counter -= 1.0;
- axis_counter += axis_factor;
- }
-
- /* Free our GC */
-
- gdk_gc_destroy (gc);
-}
-
-
-static void
-zoom_in_smooth (EMap *map)
-{
- GdkRectangle area;
- EMapPrivate *priv;
- GdkWindow *window;
- int width, height;
- int win_width, win_height;
- int target_width, target_height;
- double x, y;
-
- g_return_if_fail (map);
- g_return_if_fail (GTK_WIDGET_REALIZED (GTK_WIDGET (map)));
-
- area.x = 0;
- area.y = 0;
- area.width = GTK_WIDGET (map)->allocation.width;
- area.height = GTK_WIDGET (map)->allocation.height;
-
- priv = map->priv;
- window = GTK_WIDGET (map)->window;
- width = gdk_pixbuf_get_width (priv->map_render_pixbuf);
- height = gdk_pixbuf_get_height (priv->map_render_pixbuf);
- win_width = GTK_WIDGET (map)->allocation.width;
- win_height = GTK_WIDGET (map)->allocation.height;
- target_width = win_width / 4;
- target_height = win_height / 4;
-
- /* Center the target point as much as possible */
-
- e_map_world_to_window (map, priv->zoom_target_long, priv->zoom_target_lat, &x, &y);
- smooth_center_at (map, x + priv->xofs, y + priv->yofs);
-
- /* Render and paint a temporary map without overlays, so they don't get in
- * the way (look ugly) while zooming */
-
- update_render_pixbuf (map, GDK_INTERP_BILINEAR, FALSE);
- request_paint_area (map, &area);
-
- /* Find out where in the area we're going to zoom to */
-
- e_map_world_to_window (map, priv->zoom_target_long, priv->zoom_target_lat, &x, &y);
-
- /* Pre-render the zoomed-in map, so we can put it there quickly when the
- * blowup sequence ends */
-
- priv->zoom_state = E_MAP_ZOOMED_IN;
- update_render_pixbuf (map, GDK_INTERP_BILINEAR, TRUE);
-
- /* Do the blowup */
-
- blowup_window_area (window, priv->xofs, priv->yofs, x, y, width, height, 1.68);
-
- /* Set new scroll offsets and paint the zoomed map */
-
- e_map_world_to_window (map, priv->zoom_target_long, priv->zoom_target_lat, &x, &y);
- priv->xofs = CLAMP (priv->xofs + x - area.width / 2.0, 0, E_MAP_GET_WIDTH (map) - area.width);
- priv->yofs = CLAMP (priv->yofs + y - area.height / 2.0, 0, E_MAP_GET_HEIGHT (map) - area.height);
-
- request_paint_area (map, &area);
-}
-
-
-static void
-zoom_in (EMap *map)
-{
- GdkRectangle area;
- EMapPrivate *priv;
- double x, y;
-
- priv = map->priv;
-
- area.x = 0;
- area.y = 0;
- area.width = GTK_WIDGET (map)->allocation.width;
- area.height = GTK_WIDGET (map)->allocation.height;
-
- priv->zoom_state = E_MAP_ZOOMED_IN;
-
- update_render_pixbuf (map, GDK_INTERP_BILINEAR, TRUE);
-
- e_map_world_to_window (map, priv->zoom_target_long, priv->zoom_target_lat, &x, &y);
- priv->xofs = CLAMP (priv->xofs + x - area.width / 2.0, 0, E_MAP_GET_WIDTH (map) - area.width);
- priv->yofs = CLAMP (priv->yofs + y - area.height / 2.0, 0, E_MAP_GET_HEIGHT (map) - area.height);
-
- request_paint_area (map, &area);
-}
-
-
-static void
-zoom_out (EMap *map)
-{
- GdkRectangle area;
- EMapPrivate *priv;
- double longitude, latitude;
- double x, y;
-
- priv = map->priv;
-
- area.x = 0;
- area.y = 0;
- area.width = GTK_WIDGET (map)->allocation.width;
- area.height = GTK_WIDGET (map)->allocation.height;
-
- /* Must be done before update_render_pixbuf() */
-
- e_map_window_to_world (map, area.width / 2, area.height / 2,
- &longitude, &latitude);
-
- priv->zoom_state = E_MAP_ZOOMED_OUT;
- update_render_pixbuf (map, GDK_INTERP_BILINEAR, TRUE);
-
- e_map_world_to_window (map, longitude, latitude, &x, &y);
- center_at (map, x + priv->xofs, y + priv->yofs, FALSE);
-/* request_paint_area (map, &area); */
- repaint_visible (map);
-}
-
-
-static void
-zoom_do (EMap *map)
-{
- EMapPrivate *priv;
-
- priv = map->priv;
-
- gtk_signal_handler_block_by_data (GTK_OBJECT (priv->hadj), map);
- gtk_signal_handler_block_by_data (GTK_OBJECT (priv->vadj), map);
-
- if (priv->zoom_state == E_MAP_ZOOMING_IN)
- {
- if (e_map_get_smooth_zoom (map)) zoom_in_smooth (map);
- else zoom_in (map);
- }
- else if (priv->zoom_state == E_MAP_ZOOMING_OUT)
- {
-/* if (e_map_get_smooth_zoom(map)) zoom_out_smooth(map); */
- zoom_out (map);
- }
-
- gtk_signal_handler_unblock_by_data (GTK_OBJECT (priv->hadj), map);
- gtk_signal_handler_unblock_by_data (GTK_OBJECT (priv->vadj), map);
-
- set_scroll_area(map);
-}
-
-
-/* Callback used when an adjustment is changed */
-
-static void
-adjustment_changed_cb (GtkAdjustment *adj, gpointer data)
-{
- EMap *view;
- EMapPrivate *priv;
-
- view = E_MAP (data);
- priv = view->priv;
-
- scroll_to (view, priv->hadj->value, priv->vadj->value);
-}
-
-
-static void
-set_scroll_area (EMap *view)
-{
- EMapPrivate *priv;
-
- priv = view->priv;
-
- if (!GTK_WIDGET_REALIZED (GTK_WIDGET (view))) return;
- if (!priv->hadj || !priv->vadj) return;
-
- /* Set scroll increments */
-
- priv->hadj->page_size = GTK_WIDGET (view)->allocation.width;
- priv->hadj->page_increment = GTK_WIDGET (view)->allocation.width / 2;
- priv->hadj->step_increment = SCROLL_STEP_SIZE;
-
- priv->vadj->page_size = GTK_WIDGET (view)->allocation.height;
- priv->vadj->page_increment = GTK_WIDGET (view)->allocation.height / 2;
- priv->vadj->step_increment = SCROLL_STEP_SIZE;
-
- /* Set scroll bounds and new offsets */
-
- priv->hadj->lower = 0;
- if (priv->map_render_pixbuf)
- priv->hadj->upper = gdk_pixbuf_get_width (priv->map_render_pixbuf);
-
- priv->vadj->lower = 0;
- if (priv->map_render_pixbuf)
- priv->vadj->upper = gdk_pixbuf_get_height (priv->map_render_pixbuf);
-
- gtk_signal_emit_by_name (GTK_OBJECT (priv->hadj), "changed");
- gtk_signal_emit_by_name (GTK_OBJECT (priv->vadj), "changed");
-
- priv->xofs = CLAMP (priv->xofs, 0, priv->hadj->upper - priv->hadj->page_size);
- priv->yofs = CLAMP (priv->yofs, 0, priv->vadj->upper - priv->vadj->page_size);
-
- if (priv->hadj->value != priv->xofs)
- {
- priv->hadj->value = priv->xofs;
-
- gtk_signal_handler_block_by_data (GTK_OBJECT (priv->hadj), view);
- gtk_signal_emit_by_name (GTK_OBJECT (priv->hadj), "value_changed");
- gtk_signal_handler_unblock_by_data (GTK_OBJECT (priv->hadj), view);
- }
-
- if (priv->vadj->value != priv->yofs)
- {
- priv->vadj->value = priv->yofs;
-
- gtk_signal_handler_block_by_data (GTK_OBJECT (priv->vadj), view);
- gtk_signal_emit_by_name (GTK_OBJECT (priv->vadj), "value_changed");
- gtk_signal_handler_unblock_by_data (GTK_OBJECT (priv->vadj), view);
- }
-}