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-rw-r--r--widgets/e-text/e-text-event-processor-emacs-like.c7
-rw-r--r--widgets/e-text/e-text.c115
-rw-r--r--widgets/e-text/e-text.h11
3 files changed, 127 insertions, 6 deletions
diff --git a/widgets/e-text/e-text-event-processor-emacs-like.c b/widgets/e-text/e-text-event-processor-emacs-like.c
index 1d7d36d45f..6c7c86afdc 100644
--- a/widgets/e-text/e-text-event-processor-emacs-like.c
+++ b/widgets/e-text/e-text-event-processor-emacs-like.c
@@ -241,10 +241,9 @@ e_text_event_processor_emacs_like_event (ETextEventProcessor *tep, ETextEventPro
}
break;
case GDK_Tab:
- command.action = E_TEP_INSERT;
+ /* Don't insert literally */
+ command.action = E_TEP_NOP;
command.position = E_TEP_SELECTION;
- command.value = 1;
- command.string = "\t";
break;
case GDK_Return:
if (key.state & GDK_CONTROL_MASK) {
@@ -258,9 +257,9 @@ e_text_event_processor_emacs_like_event (ETextEventProcessor *tep, ETextEventPro
}
break;
case GDK_Escape:
+ /* Don't insert literally */
command.action = E_TEP_NOP;
command.position = E_TEP_SELECTION;
- /* Don't insert literally */
break;
default:
diff --git a/widgets/e-text/e-text.c b/widgets/e-text/e-text.c
index f6daa3f3cf..e4e8e11f9b 100644
--- a/widgets/e-text/e-text.c
+++ b/widgets/e-text/e-text.c
@@ -223,6 +223,19 @@ e_text_init (EText *text)
text->selection_start = 0;
text->selection_end = 0;
text->select_by_word = FALSE;
+
+ text->timeout_id = 0;
+ text->timer = NULL;
+
+ text->lastx = 0;
+ text->lasty = 0;
+ text->last_state = 0;
+
+ text->scroll_start = 0;
+ text->show_cursor = TRUE;
+ text->button_down = FALSE;
+
+ text->tep = NULL;
}
/* Destroy handler for the text item */
@@ -239,6 +252,9 @@ e_text_destroy (GtkObject *object)
if (text->text)
g_free (text->text);
+ if (text->tep)
+ gtk_object_unref (GTK_OBJECT(text->tep));
+
if (text->lines)
g_free (text->lines);
@@ -1049,11 +1065,12 @@ _get_tep(EText *text)
{
if (!text->tep) {
text->tep = e_text_event_processor_emacs_like_new();
+ gtk_object_ref (GTK_OBJECT (text->tep));
+ gtk_object_sink (GTK_OBJECT (text->tep));
gtk_signal_connect(GTK_OBJECT(text->tep),
"command",
GTK_SIGNAL_FUNC(e_text_command),
(gpointer) text);
-
}
}
@@ -1165,7 +1182,8 @@ e_text_draw (GnomeCanvasItem *item, GdkDrawable *drawable,
}
if (text->selection_start == text->selection_end &&
text->selection_start >= start_char &&
- text->selection_start <= end_char) {
+ text->selection_start <= end_char &&
+ text->show_cursor) {
gdk_draw_rectangle (drawable,
text->gc,
TRUE,
@@ -1460,6 +1478,7 @@ _get_position_from_xy (EText *text, gint x, gint y)
i = 0;
lines = text->lines;
lines += j;
+ x += text->xofs_edit;
xpos = get_line_xpos (text, lines);
for(i = 0; i < lines->length; i++) {
int charwidth = gdk_text_width(text->font,
@@ -1473,6 +1492,69 @@ _get_position_from_xy (EText *text, gint x, gint y)
return lines->text + i - text->text;
}
+#define SCROLL_WAIT_TIME 30000
+
+static gboolean
+_blink_scroll_timeout (gpointer data)
+{
+ EText *text = E_TEXT(data);
+ gulong current_time;
+ gboolean scroll = FALSE;
+ gboolean redraw = FALSE;
+
+ g_timer_elapsed(text->timer, &current_time);
+
+ if (text->scroll_start + SCROLL_WAIT_TIME > 1000000) {
+ if (current_time > text->scroll_start - (1000000 - SCROLL_WAIT_TIME) &&
+ current_time < text->scroll_start)
+ scroll = TRUE;
+ } else {
+ if (current_time > text->scroll_start + SCROLL_WAIT_TIME ||
+ current_time < text->scroll_start)
+ scroll = TRUE;
+ }
+ if (scroll && text->button_down) {
+ if (text->lastx - text->clip_cx > text->clip_cwidth &&
+ text->xofs_edit < text->max_width - text->clip_cwidth) {
+ text->xofs_edit += 4;
+ if (text->xofs_edit > text->max_width - text->clip_cwidth)
+ text->xofs_edit = text->max_width - text->clip_cwidth;
+ redraw = TRUE;
+ }
+ if (text->lastx - text->clip_cx < 0 &&
+ text->xofs_edit > 0) {
+ text->xofs_edit -= 4;
+ if (text->xofs_edit < 0)
+ text->xofs_edit = 0;
+ redraw = TRUE;
+ }
+ if (redraw) {
+ ETextEventProcessorEvent e_tep_event;
+ e_tep_event.type = GDK_MOTION_NOTIFY;
+ e_tep_event.motion.state = text->last_state;
+ e_tep_event.motion.time = 0;
+ e_tep_event.motion.position = _get_position_from_xy(text, text->lastx, text->lasty);
+ _get_tep(text);
+ e_text_event_processor_handle_event (text->tep,
+ &e_tep_event);
+ text->scroll_start = current_time;
+ }
+ }
+
+ if (!((current_time / 500000) % 2)) {
+ if (!text->show_cursor)
+ redraw = TRUE;
+ text->show_cursor = TRUE;
+ } else {
+ if (text->show_cursor)
+ redraw = TRUE;
+ text->show_cursor = FALSE;
+ }
+ if (redraw)
+ gnome_canvas_item_request_update (GNOME_CANVAS_ITEM(text));
+ return TRUE;
+}
+
static gint
e_text_event (GnomeCanvasItem *item, GdkEvent *event)
{
@@ -1494,9 +1576,23 @@ e_text_event (GnomeCanvasItem *item, GdkEvent *event)
text->selection_end = 0;
text->select_by_word = FALSE;
text->xofs_edit = 0;
+ if (text->timeout_id == 0)
+ text->timeout_id = g_timeout_add(10, _blink_scroll_timeout, text);
+ text->timer = g_timer_new();
+ g_timer_elapsed(text->timer, &(text->scroll_start));
+ g_timer_start(text->timer);
}
} else {
text->editing = FALSE;
+ if (text->timeout_id) {
+ g_source_remove(text->timeout_id);
+ text->timeout_id = 0;
+ }
+ if (text->timer) {
+ g_timer_stop(text->timer);
+ g_timer_destroy(text->timer);
+ text->timer = NULL;
+ }
}
calc_line_widths (text);
}
@@ -1529,6 +1625,18 @@ e_text_event (GnomeCanvasItem *item, GdkEvent *event)
_get_tep(text);
return_val = e_text_event_processor_handle_event (text->tep,
&e_tep_event);
+ if (event->button.button == 1) {
+ if (event->type == GDK_BUTTON_PRESS)
+ text->button_down = TRUE;
+ else
+ text->button_down = FALSE;
+ }
+ text->lastx = button.x;
+ text->lasty = button.y;
+ text->last_state = button.state;
+ if (event->type == GDK_BUTTON_PRESS && text->timer) {
+ g_timer_reset(text->timer);
+ }
} else if (text->editable && event->type == GDK_BUTTON_RELEASE) {
gnome_canvas_item_grab_focus (item);
return 1;
@@ -1543,6 +1651,9 @@ e_text_event (GnomeCanvasItem *item, GdkEvent *event)
_get_tep(text);
return_val = e_text_event_processor_handle_event (text->tep,
&e_tep_event);
+ text->lastx = motion.x;
+ text->lasty = motion.y;
+ text->last_state = motion.state;
}
break;
default:
diff --git a/widgets/e-text/e-text.h b/widgets/e-text/e-text.h
index b18b93d7f2..23713563c3 100644
--- a/widgets/e-text/e-text.h
+++ b/widgets/e-text/e-text.h
@@ -148,6 +148,17 @@ struct _EText {
int selection_end; /* End of selection */
gboolean select_by_word; /* Current selection is by word */
+ /* This section is for drag scrolling. */
+ gint timeout_id; /* Current timeout id for scrolling */
+ GTimer *timer; /* Timer for blinking cursor and scrolling */
+
+ gint lastx, lasty; /* Last x and y motion events */
+ gint last_state; /* Last state */
+ gulong scroll_start; /* Starting time for scroll (microseconds) */
+
+ gint show_cursor; /* Is cursor currently shown */
+ gboolean button_down; /* Is mouse button 1 down */
+
ETextEventProcessor *tep; /* Text Event Processor */
};
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-29 22:53:33 +0800