* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
*/
+#include <config.h>
#include <stdlib.h>
#include <math.h>
#include <string.h>
#include "ev-view.h"
#include "ev-view-private.h"
#include "ev-utils.h"
-#include "ev-selection.h"
#include "ev-document-links.h"
#include "ev-document-images.h"
#include "ev-document-find.h"
/*** Selection ***/
static void compute_selections (EvView *view,
+ EvSelectionStyle style,
GdkPoint *start,
GdkPoint *stop);
static void clear_selection (EvView *view);
}
view->end_page = i;
- } else if (found) {
+ } else if (found && view->current_page <= view->end_page) {
break;
}
}
goto_fitr_dest (EvView *view, EvLinkDest *dest)
{
EvPoint doc_point;
- double zoom;
+ gdouble zoom, left, top;
+ gboolean change_left, change_top;
+
+ left = ev_link_dest_get_left (dest, &change_left);
+ top = ev_link_dest_get_top (dest, &change_top);
- zoom = zoom_for_size_best_fit (ev_link_dest_get_right (dest) - ev_link_dest_get_left (dest),
- ev_link_dest_get_bottom (dest) - ev_link_dest_get_top (dest),
+ zoom = zoom_for_size_best_fit (ev_link_dest_get_right (dest) - left,
+ ev_link_dest_get_bottom (dest) - top,
ev_view_get_width (view),
ev_view_get_height (view), 0, 0);
ev_view_set_sizing_mode (view, EV_SIZING_FREE);
ev_view_set_zoom (view, zoom, FALSE);
- doc_point.x = ev_link_dest_get_left (dest);
- doc_point.y = ev_link_dest_get_top (dest);
+ doc_point.x = change_left ? left : 0;
+ doc_point.y = change_top ? top : 0;
view->current_page = ev_link_dest_get_page (dest);
- view->pending_point = doc_point;
+ if (change_left || change_top)
+ view->pending_point = doc_point;
view->pending_scroll = SCROLL_TO_PAGE_POSITION;
gtk_widget_queue_resize (GTK_WIDGET (view));
{
EvPoint doc_point;
int doc_width, doc_height, page;
- double zoom;
+ double zoom, left;
+ gboolean change_left;
page = ev_link_dest_get_page (dest);
ev_page_cache_get_size (view->page_cache, page, 0, 1.0, &doc_width, &doc_height);
- doc_point.x = ev_link_dest_get_left (dest);
+ left = ev_link_dest_get_left (dest, &change_left);
+ doc_point.x = change_left ? left : 0;
doc_point.y = 0;
zoom = zoom_for_size_fit_height (doc_width - doc_point.x , doc_height,
ev_view_set_zoom (view, zoom, FALSE);
view->current_page = page;
- view->pending_point = doc_point;
+ if (change_left)
+ view->pending_point = doc_point;
view->pending_scroll = SCROLL_TO_PAGE_POSITION;
gtk_widget_queue_resize (GTK_WIDGET (view));
{
EvPoint doc_point;
int doc_width, doc_height, page;
- double zoom;
+ gdouble zoom, top;
+ gboolean change_top;
page = ev_link_dest_get_page (dest);
ev_page_cache_get_size (view->page_cache, page, 0, 1.0, &doc_width, &doc_height);
+ top = ev_link_dest_get_top (dest, &change_top);
+
doc_point.x = 0;
- doc_point.y = ev_link_dest_get_top (dest);
+ doc_point.y = change_top ? top : 0;
- zoom = zoom_for_size_fit_width (doc_width, ev_link_dest_get_top (dest),
+ zoom = zoom_for_size_fit_width (doc_width, top,
ev_view_get_width (view),
ev_view_get_height (view), 0);
ev_view_set_zoom (view, zoom, FALSE);
view->current_page = page;
- view->pending_point = doc_point;
+ if (change_top)
+ view->pending_point = doc_point;
view->pending_scroll = SCROLL_TO_PAGE_POSITION;
gtk_widget_queue_resize (GTK_WIDGET (view));
{
EvPoint doc_point;
gint page;
- double zoom;
+ gdouble zoom, left, top;
+ gboolean change_zoom, change_left, change_top;
- zoom = ev_link_dest_get_zoom (dest);
+ zoom = ev_link_dest_get_zoom (dest, &change_zoom);
page = ev_link_dest_get_page (dest);
- if (zoom > 1) {
+ if (change_zoom && zoom > 1) {
ev_view_set_sizing_mode (view, EV_SIZING_FREE);
ev_view_set_zoom (view, zoom, FALSE);
}
- doc_point.x = ev_link_dest_get_left (dest);
- doc_point.y = ev_link_dest_get_top (dest);
+ left = ev_link_dest_get_left (dest, &change_left);
+ top = ev_link_dest_get_top (dest, &change_top);
+
+ doc_point.x = change_left ? left : 0;
+ doc_point.y = change_top ? top : 0;
view->current_page = page;
- view->pending_point = doc_point;
+ if (change_left || change_top)
+ view->pending_point = doc_point;
view->pending_scroll = SCROLL_TO_PAGE_POSITION;
gtk_widget_queue_resize (GTK_WIDGET (view));
if (view->cursor == EV_VIEW_CURSOR_HIDDEN)
return;
+
+ if (view->drag_info.in_drag) {
+ if (view->cursor != EV_VIEW_CURSOR_DRAG)
+ ev_view_set_cursor (view, EV_VIEW_CURSOR_DRAG);
+ return;
+ }
+
+ if (view->scroll_info.autoscrolling) {
+ if (view->cursor != EV_VIEW_CURSOR_AUTOSCROLL)
+ ev_view_set_cursor (view, EV_VIEW_CURSOR_AUTOSCROLL);
+ return;
+ }
link = ev_view_get_link_at_location (view, x, y);
} else if ((field = ev_view_get_form_field_at_location (view, x, y))) {
if (field->is_read_only) {
if (view->cursor == EV_VIEW_CURSOR_LINK ||
- view->cursor == EV_VIEW_CURSOR_IBEAM)
+ view->cursor == EV_VIEW_CURSOR_IBEAM ||
+ view->cursor == EV_VIEW_CURSOR_DRAG)
ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
} else if (EV_IS_FORM_FIELD_TEXT (field)) {
ev_view_set_cursor (view, EV_VIEW_CURSOR_IBEAM);
ev_view_set_cursor (view, EV_VIEW_CURSOR_IBEAM);
} else {
if (view->cursor == EV_VIEW_CURSOR_LINK ||
- view->cursor == EV_VIEW_CURSOR_IBEAM)
+ view->cursor == EV_VIEW_CURSOR_IBEAM ||
+ view->cursor == EV_VIEW_CURSOR_DRAG)
ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
}
}
}
#endif /* GTK_CHECK_VERSION (2, 11, 7) */
+static void
+start_selection_for_event (EvView *view,
+ GdkEventButton *event)
+{
+ EvSelectionStyle style;
+
+ clear_selection (view);
+
+ view->selection_info.start.x = event->x + view->scroll_x;
+ view->selection_info.start.y = event->y + view->scroll_y;
+
+ switch (event->type) {
+ case GDK_2BUTTON_PRESS:
+ style = EV_SELECTION_STYLE_WORD;
+ break;
+ case GDK_3BUTTON_PRESS:
+ style = EV_SELECTION_STYLE_LINE;
+ break;
+ default:
+ style = EV_SELECTION_STYLE_GLYPH;
+ break;
+ }
+
+ view->selection_info.style = style;
+}
+
static gboolean
ev_view_button_press_event (GtkWidget *widget,
GdkEventButton *event)
switch (event->button) {
case 1: {
+
+ if (view->scroll_info.autoscrolling == TRUE) {
+ view->scroll_info.autoscrolling = FALSE;
+ return TRUE;
+ }
+
EvImage *image;
EvFormField *field;
- if (view->selection_info.selections) {
- if (location_in_selected_text (view,
+ if (EV_IS_SELECTION (view->document) && view->selection_info.selections) {
+ if (event->type == GDK_3BUTTON_PRESS) {
+ start_selection_for_event (view, event);
+ } else if (location_in_selected_text (view,
event->x + view->scroll_x,
event->y + view->scroll_y)) {
view->selection_info.in_drag = TRUE;
} else {
- clear_selection (view);
-
- view->selection_info.start.x = event->x + view->scroll_x;
- view->selection_info.start.y = event->y + view->scroll_y;
+ start_selection_for_event (view, event);
}
-
+
gtk_widget_queue_draw (widget);
+ } else if ((field = ev_view_get_form_field_at_location (view, event->x, event->y))) {
+ ev_view_remove_all (view);
+ ev_view_handle_form_field (view, field, event->x, event->y);
} else if (!location_in_text (view, event->x + view->scroll_x, event->y + view->scroll_y) &&
(image = ev_view_get_image_at_location (view, event->x, event->y))) {
if (view->image_dnd_info.image)
view->image_dnd_info.start.x = event->x + view->scroll_x;
view->image_dnd_info.start.y = event->y + view->scroll_y;
- } else if ((field = ev_view_get_form_field_at_location (view, event->x, event->y))) {
- ev_view_remove_all (view);
- ev_view_handle_form_field (view, field, event->x, event->y);
} else {
ev_view_remove_all (view);
- view->selection_info.start.x = event->x + view->scroll_x;
- view->selection_info.start.y = event->y + view->scroll_y;
+
+ if (EV_IS_SELECTION (view->document))
+ start_selection_for_event (view, event);
}
}
return TRUE;
case 2:
/* use root coordinates as reference point because
* scrolling changes window relative coordinates */
+ if (view->scroll_info.autoscrolling == TRUE) {
+ view->scroll_info.autoscrolling = FALSE;
+ return TRUE;
+ }
view->drag_info.start.x = event->x_root;
view->drag_info.start.y = event->y_root;
view->drag_info.hadj = gtk_adjustment_get_value (view->hadjustment);
return TRUE;
case 3:
+ if (!view->scroll_info.autoscrolling)
+ view->scroll_info.start_y = event->y;
return ev_view_do_popup_menu (view, event->x, event->y);
}
switch (info) {
case TARGET_DND_TEXT:
- if (view->selection_info.selections &&
- ev_document_can_get_text (view->document)) {
+ if (EV_IS_SELECTION (view->document) &&
+ view->selection_info.selections) {
gchar *text;
text = get_selected_text (view);
-
gtk_selection_data_set_text (selection_data,
text,
strlen (text));
-
g_free (text);
}
break;
static gboolean
selection_update_idle_cb (EvView *view)
{
- compute_selections (view, &view->selection_info.start, &view->motion);
+ compute_selections (view,
+ view->selection_info.style,
+ &view->selection_info.start,
+ &view->motion);
view->selection_update_id = 0;
return FALSE;
}
return TRUE;
}
+static gboolean
+ev_view_drag_update_momentum (EvView *view)
+{
+ int i;
+ if (!view->drag_info.in_drag)
+ return FALSE;
+
+ for (i = DRAG_HISTORY - 1; i > 0; i--) {
+ view->drag_info.buffer[i].x = view->drag_info.buffer[i-1].x;
+ view->drag_info.buffer[i].y = view->drag_info.buffer[i-1].y;
+ }
+
+ /* Momentum is a moving average of 10ms granularity over
+ * the last 100ms with each 10ms stored in buffer.
+ */
+
+ view->drag_info.momentum.x = (view->drag_info.buffer[DRAG_HISTORY - 1].x - view->drag_info.buffer[0].x);
+ view->drag_info.momentum.y = (view->drag_info.buffer[DRAG_HISTORY - 1].y - view->drag_info.buffer[0].y);
+
+ return TRUE;
+}
+
+static gboolean
+ev_view_scroll_drag_release (EvView *view)
+{
+ gdouble dhadj_value, dvadj_value;
+ gdouble oldhadjustment, oldvadjustment;
+
+ view->drag_info.momentum.x /= 1.2;
+ view->drag_info.momentum.y /= 1.2; /* Alter these constants to change "friction" */
+
+ dhadj_value = view->hadjustment->page_size *
+ (gdouble)view->drag_info.momentum.x / GTK_WIDGET (view)->allocation.width;
+ dvadj_value = view->vadjustment->page_size *
+ (gdouble)view->drag_info.momentum.y / GTK_WIDGET (view)->allocation.height;
+
+ oldhadjustment = gtk_adjustment_get_value (view->hadjustment);
+ oldvadjustment = gtk_adjustment_get_value (view->vadjustment);
+
+ if (((oldhadjustment + dhadj_value) > (view->hadjustment->upper - view->hadjustment->page_size)) ||
+ ((oldhadjustment + dhadj_value) < 0))
+ view->drag_info.momentum.x *= -0.5; /* 0.5 rather than 1 means the edges absorb some momentum */
+ if (((oldvadjustment + dvadj_value) > (view->vadjustment->upper - view->vadjustment->page_size)) ||
+ ((oldvadjustment + dvadj_value) < 0))
+ view->drag_info.momentum.y *= -0.5;
+
+ gtk_adjustment_set_value (view->hadjustment,
+ MIN (oldhadjustment + dhadj_value,
+ view->hadjustment->upper - view->hadjustment->page_size));
+ gtk_adjustment_set_value (view->vadjustment,
+ MIN (oldvadjustment + dvadj_value,
+ view->vadjustment->upper - view->vadjustment->page_size));
+
+ if (((view->drag_info.momentum.x < 1) && (view->drag_info.momentum.x > -1)) &&
+ ((view->drag_info.momentum.y < 1) && (view->drag_info.momentum.y > -1)))
+ return FALSE;
+ else
+ return TRUE;
+}
+
static gboolean
ev_view_motion_notify_event (GtkWidget *widget,
GdkEventMotion *event)
if (!view->document)
return FALSE;
+
if (event->is_hint || event->window != view->layout.bin_window) {
gtk_widget_get_pointer (widget, &x, &y);
y = event->y;
}
+ if (view->scroll_info.autoscrolling) {
+ view->scroll_info.last_y = y;
+ }
+
if (view->selection_info.in_drag) {
if (gtk_drag_check_threshold (widget,
view->selection_info.start.x,
} else if (view->pressed_button == 2) {
if (!view->drag_info.in_drag) {
gboolean start;
+ int i;
start = gtk_drag_check_threshold (widget,
view->drag_info.start.x,
event->x_root,
event->y_root);
view->drag_info.in_drag = start;
+ view->drag_info.drag_timeout_id = g_timeout_add (10,
+ (GSourceFunc)ev_view_drag_update_momentum, view);
+ /* Set 100 to choose how long it takes to build up momentum */
+ /* Clear out previous momentum info: */
+ for (i = 0; i < DRAG_HISTORY; i++) {
+ view->drag_info.buffer[i].x = event->x;
+ view->drag_info.buffer[i].y = event->y;
+ }
+ view->drag_info.momentum.x = 0;
+ view->drag_info.momentum.y = 0;
}
if (view->drag_info.in_drag) {
int dx, dy;
gdouble dhadj_value, dvadj_value;
+ view->drag_info.buffer[0].x = event->x;
+ view->drag_info.buffer[0].y = event->y;
+
dx = event->x_root - view->drag_info.start.x;
dy = event->y_root - view->drag_info.start.y;
GdkEventButton *event)
{
EvView *view = EV_VIEW (widget);
- EvLink *link;
+ EvLink *link = NULL;
+
+ view->drag_info.in_drag = FALSE;
+ view->image_dnd_info.in_drag = FALSE;
+
+ view->drag_info.release_timeout_id = g_timeout_add (20,
+ (GSourceFunc)ev_view_scroll_drag_release, view);
if (view->pressed_button == 2) {
- ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
+ ev_view_handle_cursor_over_xy (view, event->x, event->y);
}
if (view->document && view->pressed_button != 3) {
link = ev_view_get_link_at_location (view, event->x, event->y);
- } else {
- link = NULL;
}
view->pressed_button = -1;
- view->drag_info.in_drag = FALSE;
- view->image_dnd_info.in_drag = FALSE;
if (view->selection_scroll_id) {
g_source_remove (view->selection_scroll_id);
view->selection_update_id = 0;
}
+ if (!view->selection_info.in_selection &&
+ view->selection_info.style != EV_SELECTION_STYLE_GLYPH) {
+ compute_selections (view,
+ view->selection_info.style,
+ &(view->selection_info.start),
+ &(view->selection_info.start));
+ }
+
if (view->selection_info.selections) {
ev_view_update_primary_selection (view);
ev_view_leave_notify_event (GtkWidget *widget, GdkEventCrossing *event)
{
EvView *view = EV_VIEW (widget);
-
- if (view->cursor == EV_VIEW_CURSOR_LINK ||
- view->cursor == EV_VIEW_CURSOR_IBEAM)
+
+ if (view->cursor != EV_VIEW_CURSOR_NORMAL)
ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
#if !GTK_CHECK_VERSION (2, 11, 7)
view->loading_text = NULL;
}
+ if (view->scroll_info.timeout_id) {
+ g_source_remove (view->scroll_info.timeout_id);
+ view->scroll_info.timeout_id = 0;
+ }
+
+ if (view->drag_info.drag_timeout_id) {
+ g_source_remove (view->drag_info.drag_timeout_id);
+ view->drag_info.drag_timeout_id = 0;
+ }
+
+ if (view->drag_info.release_timeout_id) {
+ g_source_remove (view->drag_info.release_timeout_id);
+ view->drag_info.release_timeout_id = 0;
+ }
+
ev_view_presentation_transition_stop (view);
ev_view_set_scroll_adjustments (GTK_LAYOUT (view), NULL, NULL);
view->pressed_button = -1;
view->cursor = EV_VIEW_CURSOR_NORMAL;
view->drag_info.in_drag = FALSE;
+ view->scroll_info.autoscrolling = FALSE;
view->selection_info.selections = NULL;
view->selection_info.in_selection = FALSE;
view->selection_info.in_drag = FALSE;
gtk_widget_queue_draw (GTK_WIDGET (view));
}
+static gboolean ev_view_autoscroll_cb (EvView *view)
+{
+ gdouble speed, value;
+
+ /* If the user stops autoscrolling, autoscrolling will be
+ * set to false but the timeout will continue; stop the timeout: */
+ if (!view->scroll_info.autoscrolling) {
+ view->scroll_info.timeout_id = 0;
+ return FALSE;
+ }
+
+ if (view->scroll_info.last_y > view->scroll_info.start_y &&
+ (view->scroll_info.last_y < view->scroll_info.start_y))
+ return TRUE;
+
+ /* Replace 100 with your speed of choice: The lower the faster.
+ * Replace 3 with another speed of choice: The higher, the faster it accelerated
+ * based on the distance of the starting point from the mouse
+ * (All also effected by the timeout interval of this callback) */
+
+ if (view->scroll_info.start_y > view->scroll_info.last_y)
+ speed = -pow ((((gdouble)view->scroll_info.start_y - view->scroll_info.last_y) / 100), 3);
+ else
+ speed = pow ((((gdouble)view->scroll_info.last_y - view->scroll_info.start_y) / 100), 3);
+
+ value = gtk_adjustment_get_value (view->vadjustment);
+ value = CLAMP (value + speed, 0, view->vadjustment->upper - view->vadjustment->page_size);
+ gtk_adjustment_set_value (view->vadjustment, value);
+
+ return TRUE;
+
+}
+
+void ev_view_autoscroll(EvView *view)
+{
+ view->scroll_info.autoscrolling = TRUE;
+ view->scroll_info.timeout_id = g_timeout_add (20, (GSourceFunc)(ev_view_autoscroll_cb), view);
+}
+
void
ev_view_set_document (EvView *view,
EvDocument *document)
else
scale = factor;
- scale = CLAMP (scale, view->min_scale, view->max_scale);
+ scale = CLAMP (scale,
+ view->sizing_mode == EV_SIZING_FREE ? view->min_scale : 0,
+ view->max_scale);
if (ABS (view->scale - scale) < EPSILON)
return;
}
static GList *
-compute_new_selection_text (EvView *view,
- GdkPoint *start,
- GdkPoint *stop)
+compute_new_selection_text (EvView *view,
+ EvSelectionStyle style,
+ GdkPoint *start,
+ GdkPoint *stop)
{
int n_pages, i, first, last;
GList *list = NULL;
selection = g_new0 (EvViewSelection, 1);
selection->page = i;
+ selection->style = style;
selection->rect.x1 = selection->rect.y1 = 0;
selection->rect.x2 = width;
selection->rect.y2 = height;
}
static void
-compute_selections (EvView *view,
- GdkPoint *start,
- GdkPoint *stop)
+compute_selections (EvView *view,
+ EvSelectionStyle style,
+ GdkPoint *start,
+ GdkPoint *stop)
{
GList *list;
if (view->selection_mode == EV_VIEW_SELECTION_RECTANGLE)
list = compute_new_selection_rect (view, start, stop);
else
- list = compute_new_selection_text (view, start, stop);
+ list = compute_new_selection_text (view, style, start, stop);
merge_selection_region (view, list);
}
g_object_notify (G_OBJECT (view), "has-selection");
}
-
void
ev_view_select_all (EvView *view)
{
+ GList *selections = NULL;
int n_pages, i;
/* Disable selection on rotated pages for the 0.4.0 series */
return;
clear_selection (view);
-
+
n_pages = ev_page_cache_get_n_pages (view->page_cache);
for (i = 0; i < n_pages; i++) {
int width, height;
selection = g_new0 (EvViewSelection, 1);
selection->page = i;
+ selection->style = EV_SELECTION_STYLE_GLYPH;
selection->rect.x1 = selection->rect.y1 = 0;
selection->rect.x2 = width;
selection->rect.y2 = height;
- view->selection_info.selections = g_list_append (view->selection_info.selections, selection);
+ selections = g_list_append (selections, selection);
}
- ev_pixbuf_cache_set_selection_list (view->pixbuf_cache, view->selection_info.selections);
- g_object_notify (G_OBJECT (view), "has-selection");
+ merge_selection_region (view, selections);
gtk_widget_queue_draw (GTK_WIDGET (view));
}
}
static char *
-get_selected_text (EvView *ev_view)
+get_selected_text (EvView *view)
{
GString *text;
GList *l;
gchar *normalized_text;
+ EvRenderContext *rc;
text = g_string_new (NULL);
+ rc = ev_render_context_new (view->rotation, 1, view->scale);
ev_document_doc_mutex_lock ();
- for (l = ev_view->selection_info.selections; l != NULL; l = l->next) {
+ for (l = view->selection_info.selections; l != NULL; l = l->next) {
EvViewSelection *selection = (EvViewSelection *)l->data;
- char *tmp;
+ gchar *tmp;
+
+ ev_render_context_set_page (rc, selection->page);
+ tmp = ev_selection_get_selected_text (EV_SELECTION (view->document),
+ rc, selection->style,
+ &(selection->rect));
- tmp = ev_document_get_text (ev_view->document,
- selection->page,
- &selection->rect);
g_string_append (text, tmp);
g_free (tmp);
}
ev_document_doc_mutex_unlock ();
+ g_object_unref (rc);
+
normalized_text = g_utf8_normalize (text->str, text->len, G_NORMALIZE_NFKC);
g_string_free (text, TRUE);
return normalized_text;
GtkClipboard *clipboard;
char *text;
- if (!ev_document_can_get_text (ev_view->document)) {
+ if (!EV_IS_SELECTION (ev_view->document))
return;
- }
text = get_selected_text (ev_view);
clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
EvView *ev_view = EV_VIEW (data);
char *text;
- if (!ev_document_can_get_text (ev_view->document)) {
+ if (!EV_IS_SELECTION (ev_view->document))
return;
- }
text = get_selected_text (ev_view);
if (text) {
case EV_VIEW_CURSOR_DRAG:
cursor = gdk_cursor_new_for_display (display, GDK_FLEUR);
break;
+ case EV_VIEW_CURSOR_AUTOSCROLL:
+ cursor = gdk_cursor_new_for_display (display, GDK_DOUBLE_ARROW);
+ break;
}
if (cursor) {
https://www.fi.muni.cz/~kas/git / evince.git / blobdiff