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-rw-r--r--widgets/e-text.c271
1 files changed, 258 insertions, 13 deletions
diff --git a/widgets/e-text.c b/widgets/e-text.c
index 99e35348b9..cb3456cd24 100644
--- a/widgets/e-text.c
+++ b/widgets/e-text.c
@@ -24,6 +24,7 @@
#include <libart_lgpl/art_affine.h>
#include <libart_lgpl/art_rgb.h>
#include <libart_lgpl/art_rgb_bitmap_affine.h>
+#include <gtk/gtkinvisible.h>
#include "e-text-event-processor-emacs-like.h"
@@ -76,6 +77,10 @@ enum {
enum {
+ E_SELECTION_PRIMARY,
+ E_SELECTION_CLIPBOARD
+};
+enum {
TARGET_STRING,
TARGET_TEXT,
TARGET_COMPOUND_TEXT
@@ -104,11 +109,15 @@ static void e_text_command(ETextEventProcessor *tep, ETextEventProcessorCommand
static guint32 e_text_get_event_time (EText *text);
+static void e_text_get_selection(EText *text, GdkAtom selection, guint32 time);
+static void e_text_supply_selection (EText *text, guint time, GdkAtom selection, guchar *data, gint length);
+
static ETextSuckFont *e_suck_font (GdkFont *font);
static void e_suck_font_free (ETextSuckFont *suckfont);
static GnomeCanvasItemClass *parent_class;
+static GdkAtom clipboard_atom = GDK_NONE;
@@ -221,6 +230,11 @@ e_text_class_init (ETextClass *klass)
gtk_object_add_arg_type ("EText::ellipsis",
GTK_TYPE_STRING, GTK_ARG_READWRITE, ARG_ELLIPSIS);
+ if (!clipboard_atom)
+ clipboard_atom = gdk_atom_intern ("CLIPBOARD", FALSE);
+
+
+
klass->resize = NULL;
klass->change = NULL;
@@ -275,6 +289,14 @@ e_text_init (EText *text)
text->button_down = FALSE;
text->tep = NULL;
+
+ text->invisible = NULL;
+ text->has_selection = FALSE;
+
+ text->primary_selection = NULL;
+ text->primary_length = 0;
+ text->clipboard_selection = NULL;
+ text->clipboard_length = 0;
}
/* Destroy handler for the text item */
@@ -1145,6 +1167,8 @@ e_text_draw (GnomeCanvasItem *item, GdkDrawable *drawable,
text = E_TEXT (item);
canvas = GNOME_CANVAS_ITEM(text)->canvas;
+ fg_gc = GTK_WIDGET(canvas)->style->fg_gc[text->has_selection ? GTK_STATE_SELECTED : GTK_STATE_ACTIVE];
+
if (!text->text || !text->font)
return;
@@ -1156,7 +1180,7 @@ e_text_draw (GnomeCanvasItem *item, GdkDrawable *drawable,
rect.height = text->clip_cheight;
gdk_gc_set_clip_rectangle (text->gc, &rect);
- gdk_gc_set_clip_rectangle (GTK_WIDGET(canvas)->style->fg_gc[GTK_STATE_SELECTED], &rect);
+ gdk_gc_set_clip_rectangle (fg_gc, &rect);
clip_rect = &rect;
}
lines = text->lines;
@@ -1194,7 +1218,9 @@ e_text_draw (GnomeCanvasItem *item, GdkDrawable *drawable,
sel_rect.height = text->font->ascent + text->font->descent;
gtk_paint_flat_box(GTK_WIDGET(item->canvas)->style,
drawable,
- GTK_STATE_SELECTED,
+ text->has_selection ?
+ GTK_STATE_SELECTED :
+ GTK_STATE_ACTIVE,
GTK_SHADOW_NONE,
clip_rect,
GTK_WIDGET(item->canvas),
@@ -1210,7 +1236,6 @@ e_text_draw (GnomeCanvasItem *item, GdkDrawable *drawable,
ypos - y,
lines->text,
sel_start - start_char);
- fg_gc = GTK_WIDGET(canvas)->style->fg_gc[GTK_STATE_SELECTED];
gdk_draw_text (drawable,
text->font,
fg_gc,
@@ -1287,7 +1312,7 @@ e_text_draw (GnomeCanvasItem *item, GdkDrawable *drawable,
if (text->clip) {
gdk_gc_set_clip_rectangle (text->gc, NULL);
- gdk_gc_set_clip_rectangle (GTK_WIDGET(GNOME_CANVAS_ITEM(text)->canvas)->style->fg_gc[GTK_STATE_SELECTED], NULL);
+ gdk_gc_set_clip_rectangle (fg_gc, NULL);
}
}
@@ -1515,6 +1540,34 @@ e_text_bounds (GnomeCanvasItem *item, double *x1, double *y1, double *x2, double
*y2 = *y1 + height;
}
+static void
+_get_xy_from_position (EText *text, gint position, gint *xp, gint *yp)
+{
+ if (xp || yp) {
+ struct line *lines;
+ int x, y;
+ int j;
+ x = get_line_xpos (text, lines);
+ y = text->cy;
+ for (j = 0, lines = text->lines; j < text->num_lines; lines++, j++) {
+ if (lines->text > text->text + position)
+ break;
+ y += text->font->ascent + text->font->descent;
+ }
+ lines --;
+ y -= text->font->descent;
+
+ x += gdk_text_width (text->font,
+ lines->text,
+ position - (lines->text - text->text));
+ x -= text->xofs_edit;
+ if (xp)
+ *xp = x;
+ if (yp)
+ *yp = y;
+ }
+}
+
static gint
_get_position_from_xy (EText *text, gint x, gint y)
{
@@ -1523,11 +1576,10 @@ _get_position_from_xy (EText *text, gint x, gint y)
int xpos;
struct line *lines;
j = 0;
- while (y > ypos)
- {
- ypos += text->font->ascent + text->font->descent;
- j ++;
- }
+ while (y > ypos) {
+ ypos += text->font->ascent + text->font->descent;
+ j ++;
+ }
j--;
if (j >= text->num_lines)
j = text->num_lines - 1;
@@ -1543,8 +1595,9 @@ _get_position_from_xy (EText *text, gint x, gint y)
lines->text + i,
1);
xpos += charwidth / 2;
- if (xpos > x)
+ if (xpos > x) {
break;
+ }
xpos += (charwidth + 1) / 2;
}
return lines->text + i - text->text;
@@ -1619,7 +1672,7 @@ e_text_event (GnomeCanvasItem *item, GdkEvent *event)
EText *text = E_TEXT(item);
ETextEventProcessorEvent e_tep_event;
- gint return_val;
+ gint return_val = 0;
e_tep_event.type = event->type;
switch (event->type) {
@@ -1730,6 +1783,7 @@ _get_position(EText *text, ETextEventProcessorCommand *command)
{
int i;
int length;
+ int x, y;
switch (command->position) {
@@ -1793,7 +1847,13 @@ _get_position(EText *text, ETextEventProcessorCommand *command)
return i;
case E_TEP_FORWARD_LINE:
+ _get_xy_from_position(text, text->selection_end, &x, &y);
+ y += text->font->ascent + text->font->descent;
+ return _get_position_from_xy(text, x, y);
case E_TEP_BACKWARD_LINE:
+ _get_xy_from_position(text, text->selection_end, &x, &y);
+ y -= text->font->ascent + text->font->descent;
+ return _get_position_from_xy(text, x, y);
case E_TEP_FORWARD_PARAGRAPH:
case E_TEP_BACKWARD_PARAGRAPH:
@@ -1845,6 +1905,7 @@ static void
e_text_command(ETextEventProcessor *tep, ETextEventProcessorCommand *command, gpointer data)
{
EText *text = E_TEXT(data);
+ int sel_start, sel_end;
switch (command->action) {
case E_TEP_MOVE:
text->selection_start = _get_position(text, command);
@@ -1852,6 +1913,11 @@ e_text_command(ETextEventProcessor *tep, ETextEventProcessorCommand *command, gp
break;
case E_TEP_SELECT:
text->selection_end = _get_position(text, command);
+ sel_start = MIN(text->selection_start, text->selection_end);
+ sel_end = MAX(text->selection_start, text->selection_end);
+ if (sel_start != sel_end) {
+ e_text_supply_selection (text, command->time, GDK_SELECTION_PRIMARY, text->text + sel_start, sel_end - sel_start);
+ }
break;
case E_TEP_DELETE:
if (text->selection_end == text->selection_start) {
@@ -1871,10 +1937,17 @@ e_text_command(ETextEventProcessor *tep, ETextEventProcessorCommand *command, gp
recalc_bounds (text);
break;
case E_TEP_COPY:
- if (text->selection_end != text->selection_start) {
+ sel_start = MIN(text->selection_start, text->selection_end);
+ sel_end = MAX(text->selection_start, text->selection_end);
+ if (sel_start != sel_end) {
+ e_text_supply_selection (text, command->time, clipboard_atom, text->text + sel_start, sel_end - sel_start);
}
break;
case E_TEP_PASTE:
+ e_text_get_selection (text, clipboard_atom, command->time);
+ break;
+ case E_TEP_GET_SELECTION:
+ e_text_get_selection (text, GDK_SELECTION_PRIMARY, command->time);
break;
case E_TEP_ACTIVATE:
break;
@@ -1911,6 +1984,178 @@ e_text_command(ETextEventProcessor *tep, ETextEventProcessorCommand *command, gp
gnome_canvas_item_request_update (GNOME_CANVAS_ITEM(text));
}
+
+static void
+_selection_clear_event (GtkInvisible *invisible,
+ GdkEventSelection *event,
+ EText *text)
+{
+ if (event->selection == GDK_SELECTION_PRIMARY) {
+ g_free (text->primary_selection);
+ text->primary_selection = NULL;
+ text->primary_length = 0;
+ gtk_object_unref (GTK_OBJECT(invisible));
+
+ text->has_selection = FALSE;
+ gnome_canvas_item_request_update (GNOME_CANVAS_ITEM(text));
+
+ } else if (event->selection == clipboard_atom) {
+ g_free (text->clipboard_selection);
+ text->clipboard_selection = NULL;
+ text->clipboard_length = 0;
+ gtk_object_unref (GTK_OBJECT(invisible));
+ }
+}
+
+static void
+_selection_get (GtkInvisible *invisible,
+ GtkSelectionData *selection_data,
+ guint info,
+ guint time_stamp,
+ EText *text)
+{
+ switch (info) {
+ case E_SELECTION_PRIMARY:
+ gtk_selection_data_set (selection_data, GDK_SELECTION_TYPE_STRING,
+ 8, text->primary_selection, text->primary_length);
+ break;
+ case E_SELECTION_CLIPBOARD:
+ gtk_selection_data_set (selection_data, GDK_SELECTION_TYPE_STRING,
+ 8, text->clipboard_selection, text->clipboard_length);
+ break;
+ }
+}
+
+static void
+_selection_received (GtkInvisible *invisible,
+ GtkSelectionData *selection_data,
+ guint time,
+ EText *text)
+{
+ if (selection_data->length < 0 || selection_data->type != GDK_SELECTION_TYPE_STRING) {
+ gtk_object_unref (GTK_OBJECT(invisible));
+ return;
+ } else {
+ ETextEventProcessorCommand command;
+ command.action = E_TEP_INSERT;
+ command.position = E_TEP_SELECTION;
+ command.string = selection_data->data;
+ command.value = selection_data->length;
+ command.time = time;
+ e_text_command(text->tep, &command, text);
+ gtk_object_unref (GTK_OBJECT(invisible));
+ }
+}
+
+static void _invisible_destroy (GtkInvisible *invisible,
+ EText *text)
+{
+ text->invisible = NULL;
+}
+
+static void e_text_supply_selection (EText *text, guint time, GdkAtom selection, guchar *data, gint length)
+{
+ gboolean successful;
+ GtkWidget *invisible;
+
+ if (text->invisible) {
+ invisible = text->invisible;
+ gtk_object_ref (GTK_OBJECT(invisible));
+ } else {
+ invisible = gtk_invisible_new();
+ text->invisible = invisible;
+
+ gtk_selection_add_target (invisible,
+ GDK_SELECTION_PRIMARY,
+ GDK_SELECTION_TYPE_STRING,
+ E_SELECTION_PRIMARY);
+ gtk_selection_add_target (invisible,
+ clipboard_atom,
+ GDK_SELECTION_TYPE_STRING,
+ E_SELECTION_CLIPBOARD);
+
+ gtk_signal_connect (GTK_OBJECT(invisible), "selection_get",
+ GTK_SIGNAL_FUNC (_selection_get),
+ text);
+ gtk_signal_connect (GTK_OBJECT(invisible), "selection_clear_event",
+ GTK_SIGNAL_FUNC (_selection_clear_event),
+ text);
+ gtk_signal_connect (GTK_OBJECT(invisible), "selection_received",
+ GTK_SIGNAL_FUNC (_selection_received),
+ text);
+
+ gtk_signal_connect (GTK_OBJECT(invisible), "destroy",
+ GTK_SIGNAL_FUNC (_invisible_destroy),
+ text);
+ }
+
+ if (selection == GDK_SELECTION_PRIMARY ) {
+ if (text->primary_selection) {
+ gtk_object_unref (GTK_OBJECT(invisible));
+ g_free (text->primary_selection);
+ }
+ text->primary_selection = g_strndup(data, length);
+ text->primary_length = length;
+ } else if (selection == clipboard_atom) {
+ if (text->clipboard_selection) {
+ gtk_object_unref (GTK_OBJECT(invisible));
+ g_free (text->clipboard_selection);
+ }
+ text->clipboard_selection = g_strndup(data, length);
+ text->clipboard_length = length;
+ }
+
+ successful = gtk_selection_owner_set (invisible,
+ selection,
+ time);
+
+ if (selection == GDK_SELECTION_PRIMARY)
+ text->has_selection = successful;
+
+ if (!successful)
+ gtk_object_unref(GTK_OBJECT(invisible));
+}
+
+static void
+e_text_get_selection(EText *text, GdkAtom selection, guint32 time)
+{
+ GtkWidget *invisible;
+ if (text->invisible) {
+ invisible = text->invisible;
+ gtk_object_ref (GTK_OBJECT(invisible));
+ } else {
+ invisible = gtk_invisible_new();
+ text->invisible = invisible;
+
+ gtk_selection_add_target (invisible,
+ GDK_SELECTION_PRIMARY,
+ GDK_SELECTION_TYPE_STRING,
+ E_SELECTION_PRIMARY);
+ gtk_selection_add_target (invisible,
+ clipboard_atom,
+ GDK_SELECTION_TYPE_STRING,
+ E_SELECTION_CLIPBOARD);
+
+ gtk_signal_connect (GTK_OBJECT(invisible), "selection_get",
+ GTK_SIGNAL_FUNC (_selection_get),
+ text);
+ gtk_signal_connect (GTK_OBJECT(invisible), "selection_clear_event",
+ GTK_SIGNAL_FUNC (_selection_clear_event),
+ text);
+ gtk_signal_connect (GTK_OBJECT(invisible), "selection_received",
+ GTK_SIGNAL_FUNC (_selection_received),
+ text);
+
+ gtk_signal_connect (GTK_OBJECT(invisible), "destroy",
+ GTK_SIGNAL_FUNC (_invisible_destroy),
+ text);
+ }
+ gtk_selection_convert(invisible,
+ selection,
+ GDK_SELECTION_TYPE_STRING,
+ time);
+}
+
#if 0
static void
e_text_real_copy_clipboard (EText *text)
@@ -2011,7 +2256,7 @@ e_suck_font (GdkFont *font)
GdkColor black, white;
GdkImage *image;
GdkGC *gc;
- guchar *bitmap, *line;
+ guchar *line;
int width, height;
int black_pixel, pixel;
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-28 10:13:01 +0800