/*! \brief Handles the press on a mouse button.
* \par Function Description
* It handles the user inputs.
*
* Three action are available: zoom in, pan and zoom out on preview display.
*
* \param [in] widget The preview widget.
* \param [in] event The event structure.
* \param [in] user_data Unused user data.
* \returns FALSE to propagate the event further.
*/
static gboolean
preview_callback_button_press (GtkWidget *widget,
GdkEventButton *event,
gpointer user_data)
{
Preview *preview = PREVIEW (widget);
GSCHEM_TOPLEVEL *preview_w_current = preview->preview_w_current;
gint wx, wy;
if (!preview->active) {
return TRUE;
}
switch (event->button) {
case 1: /* left mouse button: zoom in */
a_zoom (preview_w_current, ZOOM_IN, HOTKEY,
A_PAN_DONT_REDRAW);
o_invalidate_all (preview_w_current);
break;
case 2: /* middle mouse button: pan */
if (!x_event_get_pointer_position(preview_w_current, FALSE, &wx, &wy))
return FALSE;
a_pan (preview_w_current, wx, wy);
break;
case 3: /* right mouse button: zoom out */
a_zoom (preview_w_current, ZOOM_OUT, HOTKEY,
A_PAN_DONT_REDRAW);
o_invalidate_all (preview_w_current);
break;
}
return FALSE;
}
/*! \brief Handles the press on a mouse button.
* \par Function Description
* It handles the user inputs.
*
* Three action are available: zoom in, pan and zoom out on preview display.
*
* \param [in] widget The preview widget.
* \param [in] event The event structure.
* \param [in] user_data Unused user data.
* \returns FALSE to propagate the event further.
*/
static gboolean
preview_callback_button_press (GtkWidget *widget,
GdkEventButton *event,
gpointer user_data)
{
Preview *preview = PREVIEW (widget);
GschemToplevel *preview_w_current = preview->preview_w_current;
gint wx, wy;
if (!preview->active) {
return TRUE;
}
switch (event->button) {
case 1: /* left mouse button: zoom in */
a_zoom (preview_w_current,
GSCHEM_PAGE_VIEW (preview),
ZOOM_IN,
HOTKEY);
gschem_page_view_invalidate_all (GSCHEM_PAGE_VIEW (widget));
break;
case 2: /* middle mouse button: pan */
if (!x_event_get_pointer_position(preview_w_current, FALSE, &wx, &wy))
return FALSE;
gschem_page_view_pan (GSCHEM_PAGE_VIEW (preview), wx, wy);
break;
case 3: /* right mouse button: zoom out */
a_zoom (preview_w_current,
GSCHEM_PAGE_VIEW (preview),
ZOOM_OUT,
HOTKEY);
gschem_page_view_invalidate_all (GSCHEM_PAGE_VIEW (widget));
break;
}
return FALSE;
}
/*! \todo Finish function documentation!!!
* \brief
* \par Function Description
*
* \param [in] widget The GschemPageView with the scroll event.
* \param [in] event
* \param [in] w_current
*/
gint x_event_scroll (GtkWidget *widget, GdkEventScroll *event,
GschemToplevel *w_current)
{
GtkAdjustment *adj;
gboolean pan_xaxis = FALSE;
gboolean pan_yaxis = FALSE;
gboolean zoom = FALSE;
int pan_direction = 1;
int zoom_direction = ZOOM_IN;
GschemPageView *view = NULL;
PAGE *page = NULL;
g_return_val_if_fail ((w_current != NULL), 0);
view = GSCHEM_PAGE_VIEW (widget);
g_return_val_if_fail ((view != NULL), 0);
page = gschem_page_view_get_page (view);
if (page == NULL) {
return FALSE; /* we cannot zoom page if it doesn't exist :) */
}
/* update the state of the modifiers */
w_current->SHIFTKEY = (event->state & GDK_SHIFT_MASK ) ? 1 : 0;
w_current->CONTROLKEY = (event->state & GDK_CONTROL_MASK) ? 1 : 0;
w_current->ALTKEY = (event->state & GDK_MOD1_MASK) ? 1 : 0;
if (w_current->scroll_wheel == SCROLL_WHEEL_CLASSIC) {
/* Classic gschem behaviour */
zoom = !w_current->CONTROLKEY && !w_current->SHIFTKEY;
pan_yaxis = !w_current->CONTROLKEY && w_current->SHIFTKEY;
pan_xaxis = w_current->CONTROLKEY && !w_current->SHIFTKEY;
} else {
/* GTK style behaviour */
zoom = w_current->CONTROLKEY && !w_current->SHIFTKEY;
pan_yaxis = !w_current->CONTROLKEY && !w_current->SHIFTKEY;
pan_xaxis = !w_current->CONTROLKEY && w_current->SHIFTKEY;
}
/* If the user has a left/right scroll wheel, always scroll the y-axis */
if (event->direction == GDK_SCROLL_LEFT ||
event->direction == GDK_SCROLL_RIGHT) {
zoom = FALSE;
pan_yaxis = FALSE;
pan_xaxis = TRUE;
}
/* You must have scrollbars enabled if you want to use the scroll wheel to pan */
if (!w_current->scrollbars_flag) {
pan_xaxis = FALSE;
pan_yaxis = FALSE;
}
switch (event->direction) {
case GDK_SCROLL_UP:
case GDK_SCROLL_LEFT:
pan_direction = -1;
zoom_direction = ZOOM_IN;
break;
case GDK_SCROLL_DOWN:
case GDK_SCROLL_RIGHT:
pan_direction = 1;
zoom_direction = ZOOM_OUT;
break;
}
if (zoom) {
/*! \todo Change "HOTKEY" TO new "MOUSE" specifier? */
a_zoom(w_current, GSCHEM_PAGE_VIEW (widget), zoom_direction, HOTKEY);
}
if (pan_xaxis) {
adj = gschem_page_view_get_hadjustment (GSCHEM_PAGE_VIEW (widget));
g_return_val_if_fail (adj != NULL, TRUE);
gtk_adjustment_set_value(adj, MIN(adj->value + pan_direction *
(adj->page_increment /
w_current->scrollpan_steps),
adj->upper - adj->page_size));
}
if (pan_yaxis) {
adj = gschem_page_view_get_vadjustment (GSCHEM_PAGE_VIEW (widget));
g_return_val_if_fail (adj != NULL, TRUE);
gtk_adjustment_set_value(adj, MIN(adj->value + pan_direction *
(adj->page_increment /
w_current->scrollpan_steps),
adj->upper - adj->page_size));
}
if (w_current->undo_panzoom && (zoom || pan_xaxis || pan_yaxis)) {
o_undo_savestate_old(w_current, UNDO_VIEWPORT_ONLY);
}
x_event_faked_motion (view, NULL);
/* Stop further processing of this signal */
return TRUE;
}
/*! \todo Finish function documentation!!!
* \brief
* \par Function Description
*
* \todo Only descends into the first source schematic
*
*/
int o_edit_find_text (GSCHEM_TOPLEVEL *w_current, const GList *o_list,
char *stext, int descend, int skip)
{
TOPLEVEL *toplevel = w_current->toplevel;
char *attrib = NULL;
int count = 0;
PAGE *parent = NULL;
char *current_filename = NULL;
int page_control = 0;
int pcount = 0;
int rv;
int x1, y1, x2, y2;
int text_screen_height;
const GList *iter;
OBJECT *o_current;
skiplast = skip;
iter = o_list;
while (iter != NULL) {
o_current = (OBJECT *)iter->data;
if (descend) {
if (o_current->type == OBJ_COMPLEX) {
parent = toplevel->page_current;
attrib = o_attrib_search_attached_attribs_by_name (o_current,
"source", count);
/* if above is null, then look inside symbol */
if (attrib == NULL) {
attrib = o_attrib_search_inherited_attribs_by_name (o_current,
"source", count);
/* looking_inside = TRUE; */
}
if (attrib) {
pcount = 0;
current_filename = u_basic_breakup_string(attrib, ',', pcount);
if (current_filename != NULL) {
PAGE *child_page =
s_hierarchy_down_schematic_single(toplevel,
current_filename,
parent,
page_control,
HIERARCHY_NORMAL_LOAD);
if (child_page != NULL) {
page_control = child_page->page_control;
rv = o_edit_find_text (w_current,
s_page_objects (child_page),
stext, descend, skiplast);
if (!rv) {
s_page_goto( toplevel, child_page );
return 0;
}
}
}
}
}
}
if (o_current->type == OBJ_TEXT) {
const gchar *str = o_text_get_string (toplevel, o_current);
/* replaced strcmp with strstr to simplify the search */
if (strstr (str,stext)) {
if (!skiplast) {
a_zoom(w_current, ZOOM_FULL, DONTCARE, A_PAN_DONT_REDRAW);
world_get_single_object_bounds (toplevel, o_current, &x1, &y1, &x2, &y2);
text_screen_height = SCREENabs (w_current, y2 - y1);
/* this code will zoom/pan till the text screen height is about */
/* 50 pixels high, perhaps a future enhancement will be to make */
/* this number configurable */
while (text_screen_height < 50) {
a_zoom(w_current, ZOOM_IN, DONTCARE, A_PAN_DONT_REDRAW);
text_screen_height = SCREENabs (w_current, y2 - y1);
}
a_pan_general(w_current,
o_current->text->x, o_current->text->y,
1, 0);
/* Make sure the titlebar and scrollbars are up-to-date */
x_window_set_current_page(w_current,
w_current->toplevel->page_current );
last_o = o_current;
break;
}
if (last_o == o_current) {
skiplast = 0;
}
} /* if (strstr(o_current->text->string,stext)) */
} /* if (o_current->type == OBJ_TEXT) */
iter = g_list_next (iter);
if (iter == NULL) {
return 1;
}
}
return (iter == NULL);
}