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gtk2/gtk/gtkentry.c
Owen Taylor caf8ebc6f1 Reference count the fonts used in the text widget. 
Mon Aug 24 18:37:15 1998  Owen Taylor  <otaylor@redhat.com>

	* gtk/gtktext.c: Reference count the fonts used in
	the text widget.

	* gdk/gdk.h gdk/gdkcolor.c: Rename the color allocation
	freeing functions to be more consistent, and more
	convenient; leave the old names in for backwards compatibility.

	* gdk/gdkcolor.c gdk/gdkprivate.h: Reference count the
	allocations in pseudo-color colormaps to greatly reduce
	calls to XAllocColor. Keep a per-colormap hashtable to
	speed up finding if there is an already-allocated matching
	color.

	* gdk/gdkcolor.c: Don't just match read the system colormap
	when the colormap is created, but synchronize our copy
	with the system colormap periodically.

	* gdk/gdk.c gdk/gdktypes.h gtk/gtkentry.c gtk/gtktext.c:
	Change XIM constants names to match GDK conventions

	* gtk/testinput.c: Allow the drawing area to get the focus.

	* gtk/testgtk.c: Change around the Text test to demonstrates
	multiple fonts, use more colors.

	* gtk/gtkwidget.c: Improve gtk_widget_get_colormap()/visual()
	so they work after a widget is unrealized.

	* gtk/gtktext.[ch]: Remove the requirement that the text
	widget be realized before adding text (!) Allocate colors
	ourself, instead of requiring the caller allocate them.
	Allow changing styles to work properly by keeping track
	of the values for a certain property are default or
	set explicitely.

	* gtk/gtkmenu.h: Added some comments.

	* gtk/gtkentry.c: Changes to match XIM constants.

	* gtk/gdk.h gdk/gdkwindow.c: Add gdk_drawable_set_data(),
	for adding keyed data to drawables. (Uses g_dataset
	internally)

	* gdk/gdkpixmap.c: Keep track of the colors we allocate,
	when creating an XPM - store them as user data for the GdkPixmap,
	so we don't leak colors when we create pixmaps from XPM's.

	Allocate memory for color information in large blocks instead of
	as many little pieces.
1998-08-25 00:06:38 +00:00

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/* GTK - The GIMP Toolkit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <ctype.h>
#include <string.h>
#ifdef USE_XIM
#include "gdk/gdkx.h"
#endif
#include "gdk/gdkkeysyms.h"
#include "gdk/gdki18n.h"
#include "gtkentry.h"
#include "gtkmain.h"
#include "gtkselection.h"
#include "gtksignal.h"
#include "gtkprivate.h"
#define MIN_ENTRY_WIDTH 150
#define DRAW_TIMEOUT 20
#define INNER_BORDER 2
enum {
ARG_0,
ARG_MAX_LENGTH,
ARG_VISIBILITY
};
static void gtk_entry_class_init (GtkEntryClass *klass);
static void gtk_entry_init (GtkEntry *entry);
static void gtk_entry_set_arg (GtkObject *object,
GtkArg *arg,
guint arg_id);
static void gtk_entry_get_arg (GtkObject *object,
GtkArg *arg,
guint arg_id);
static void gtk_entry_finalize (GtkObject *object);
static void gtk_entry_realize (GtkWidget *widget);
static void gtk_entry_unrealize (GtkWidget *widget);
static void gtk_entry_draw_focus (GtkWidget *widget);
static void gtk_entry_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void gtk_entry_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static void gtk_entry_make_backing_pixmap (GtkEntry *entry,
gint width, gint height);
static void gtk_entry_draw (GtkWidget *widget,
GdkRectangle *area);
static gint gtk_entry_expose (GtkWidget *widget,
GdkEventExpose *event);
static gint gtk_entry_button_press (GtkWidget *widget,
GdkEventButton *event);
static gint gtk_entry_button_release (GtkWidget *widget,
GdkEventButton *event);
static gint gtk_entry_motion_notify (GtkWidget *widget,
GdkEventMotion *event);
static gint gtk_entry_key_press (GtkWidget *widget,
GdkEventKey *event);
static gint gtk_entry_focus_in (GtkWidget *widget,
GdkEventFocus *event);
static gint gtk_entry_focus_out (GtkWidget *widget,
GdkEventFocus *event);
static void gtk_entry_draw_text (GtkEntry *entry);
static void gtk_entry_draw_cursor (GtkEntry *entry);
static void gtk_entry_draw_cursor_on_drawable
(GtkEntry *entry,
GdkDrawable *drawable);
static void gtk_entry_style_set (GtkWidget *widget,
GtkStyle *previous_style);
static void gtk_entry_state_changed (GtkWidget *widget,
GtkStateType previous_state);
static void gtk_entry_queue_draw (GtkEntry *entry);
static gint gtk_entry_timer (gpointer data);
static gint gtk_entry_position (GtkEntry *entry,
gint x);
void gtk_entry_adjust_scroll (GtkEntry *entry);
static void gtk_entry_grow_text (GtkEntry *entry);
static void gtk_entry_insert_text (GtkEditable *editable,
const gchar *new_text,
gint new_text_length,
gint *position);
static void gtk_entry_delete_text (GtkEditable *editable,
gint start_pos,
gint end_pos);
static void gtk_entry_update_text (GtkEditable *editable,
gint start_pos,
gint end_pos);
static gchar *gtk_entry_get_chars (GtkEditable *editable,
gint start_pos,
gint end_pos);
/* Binding actions */
static void gtk_entry_move_cursor (GtkEditable *editable,
gint x,
gint y);
static void gtk_entry_move_word (GtkEditable *editable,
gint n);
static void gtk_entry_move_to_column (GtkEditable *editable,
gint row);
static void gtk_entry_kill_char (GtkEditable *editable,
gint direction);
static void gtk_entry_kill_word (GtkEditable *editable,
gint direction);
static void gtk_entry_kill_line (GtkEditable *editable,
gint direction);
/* To be removed */
static void gtk_move_forward_character (GtkEntry *entry);
static void gtk_move_backward_character (GtkEntry *entry);
static void gtk_move_forward_word (GtkEntry *entry);
static void gtk_move_backward_word (GtkEntry *entry);
static void gtk_move_beginning_of_line (GtkEntry *entry);
static void gtk_move_end_of_line (GtkEntry *entry);
static void gtk_delete_forward_character (GtkEntry *entry);
static void gtk_delete_backward_character (GtkEntry *entry);
static void gtk_delete_forward_word (GtkEntry *entry);
static void gtk_delete_backward_word (GtkEntry *entry);
static void gtk_delete_line (GtkEntry *entry);
static void gtk_delete_to_line_end (GtkEntry *entry);
static void gtk_select_word (GtkEntry *entry,
guint32 time);
static void gtk_select_line (GtkEntry *entry,
guint32 time);
static void gtk_entry_set_selection (GtkEditable *editable,
gint start,
gint end);
static void gtk_entry_recompute_offsets (GtkEntry *entry);
static gint gtk_entry_find_char (GtkEntry *entry,
gint position);
static gint gtk_entry_find_position (GtkEntry *entry,
gint position);
static void gtk_entry_set_position_from_editable (GtkEditable *editable,
gint position);
static GtkWidgetClass *parent_class = NULL;
static GdkAtom ctext_atom = GDK_NONE;
static GtkTextFunction control_keys[26] =
{
(GtkTextFunction)gtk_move_beginning_of_line, /* a */
(GtkTextFunction)gtk_move_backward_character, /* b */
(GtkTextFunction)gtk_editable_copy_clipboard, /* c */
(GtkTextFunction)gtk_delete_forward_character, /* d */
(GtkTextFunction)gtk_move_end_of_line, /* e */
(GtkTextFunction)gtk_move_forward_character, /* f */
NULL, /* g */
(GtkTextFunction)gtk_delete_backward_character, /* h */
NULL, /* i */
NULL, /* j */
(GtkTextFunction)gtk_delete_to_line_end, /* k */
NULL, /* l */
NULL, /* m */
NULL, /* n */
NULL, /* o */
NULL, /* p */
NULL, /* q */
NULL, /* r */
NULL, /* s */
NULL, /* t */
(GtkTextFunction)gtk_delete_line, /* u */
(GtkTextFunction)gtk_editable_paste_clipboard, /* v */
(GtkTextFunction)gtk_delete_backward_word, /* w */
(GtkTextFunction)gtk_editable_cut_clipboard, /* x */
NULL, /* y */
NULL, /* z */
};
static GtkTextFunction alt_keys[26] =
{
NULL, /* a */
(GtkTextFunction)gtk_move_backward_word, /* b */
NULL, /* c */
(GtkTextFunction)gtk_delete_forward_word, /* d */
NULL, /* e */
(GtkTextFunction)gtk_move_forward_word, /* f */
NULL, /* g */
NULL, /* h */
NULL, /* i */
NULL, /* j */
NULL, /* k */
NULL, /* l */
NULL, /* m */
NULL, /* n */
NULL, /* o */
NULL, /* p */
NULL, /* q */
NULL, /* r */
NULL, /* s */
NULL, /* t */
NULL, /* u */
NULL, /* v */
NULL, /* w */
NULL, /* x */
NULL, /* y */
NULL, /* z */
};
GtkType
gtk_entry_get_type (void)
{
static GtkType entry_type = 0;
if (!entry_type)
{
GtkTypeInfo entry_info =
{
"GtkEntry",
sizeof (GtkEntry),
sizeof (GtkEntryClass),
(GtkClassInitFunc) gtk_entry_class_init,
(GtkObjectInitFunc) gtk_entry_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL,
};
entry_type = gtk_type_unique (GTK_TYPE_EDITABLE, &entry_info);
}
return entry_type;
}
static void
gtk_entry_class_init (GtkEntryClass *class)
{
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
GtkEditableClass *editable_class;
object_class = (GtkObjectClass*) class;
widget_class = (GtkWidgetClass*) class;
editable_class = (GtkEditableClass*) class;
parent_class = gtk_type_class (GTK_TYPE_EDITABLE);
gtk_object_add_arg_type ("GtkEntry::max_length", GTK_TYPE_UINT, GTK_ARG_READWRITE, ARG_MAX_LENGTH);
gtk_object_add_arg_type ("GtkEntry::visibility", GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_VISIBILITY);
object_class->set_arg = gtk_entry_set_arg;
object_class->get_arg = gtk_entry_get_arg;
object_class->finalize = gtk_entry_finalize;
widget_class->realize = gtk_entry_realize;
widget_class->unrealize = gtk_entry_unrealize;
widget_class->draw_focus = gtk_entry_draw_focus;
widget_class->size_request = gtk_entry_size_request;
widget_class->size_allocate = gtk_entry_size_allocate;
widget_class->draw = gtk_entry_draw;
widget_class->expose_event = gtk_entry_expose;
widget_class->button_press_event = gtk_entry_button_press;
widget_class->button_release_event = gtk_entry_button_release;
widget_class->motion_notify_event = gtk_entry_motion_notify;
widget_class->key_press_event = gtk_entry_key_press;
widget_class->focus_in_event = gtk_entry_focus_in;
widget_class->focus_out_event = gtk_entry_focus_out;
widget_class->style_set = gtk_entry_style_set;
widget_class->state_changed = gtk_entry_state_changed;
editable_class->insert_text = gtk_entry_insert_text;
editable_class->delete_text = gtk_entry_delete_text;
editable_class->changed = (void (*)(GtkEditable *)) gtk_entry_adjust_scroll;
editable_class->move_cursor = gtk_entry_move_cursor;
editable_class->move_word = gtk_entry_move_word;
editable_class->move_to_column = gtk_entry_move_to_column;
editable_class->kill_char = gtk_entry_kill_char;
editable_class->kill_word = gtk_entry_kill_word;
editable_class->kill_line = gtk_entry_kill_line;
editable_class->update_text = gtk_entry_update_text;
editable_class->get_chars = gtk_entry_get_chars;
editable_class->set_selection = gtk_entry_set_selection;
editable_class->set_position = gtk_entry_set_position_from_editable;
}
static void
gtk_entry_set_arg (GtkObject *object,
GtkArg *arg,
guint arg_id)
{
GtkEntry *entry;
entry = GTK_ENTRY (object);
switch (arg_id)
{
case ARG_MAX_LENGTH:
gtk_entry_set_max_length (entry, GTK_VALUE_UINT (*arg));
break;
case ARG_VISIBILITY:
gtk_entry_set_visibility (entry, GTK_VALUE_BOOL (*arg));
break;
default:
break;
}
}
static void
gtk_entry_get_arg (GtkObject *object,
GtkArg *arg,
guint arg_id)
{
GtkEntry *entry;
entry = GTK_ENTRY (object);
switch (arg_id)
{
case ARG_MAX_LENGTH:
GTK_VALUE_UINT (*arg) = entry->text_max_length;
break;
case ARG_VISIBILITY:
GTK_VALUE_BOOL (*arg) = entry->visible;
break;
default:
arg->type = GTK_TYPE_INVALID;
break;
}
}
static void
gtk_entry_init (GtkEntry *entry)
{
GTK_WIDGET_SET_FLAGS (entry, GTK_CAN_FOCUS);
entry->text_area = NULL;
entry->backing_pixmap = NULL;
entry->text = NULL;
entry->text_size = 0;
entry->text_length = 0;
entry->text_max_length = 0;
entry->scroll_offset = 0;
entry->timer = 0;
entry->button = 0;
entry->visible = 1;
entry->nchars = 0;
entry->char_pos = NULL;
entry->char_offset = NULL;
gtk_entry_grow_text (entry);
}
GtkWidget*
gtk_entry_new (void)
{
return GTK_WIDGET (gtk_type_new (GTK_TYPE_ENTRY));
}
GtkWidget*
gtk_entry_new_with_max_length (guint16 max)
{
GtkEntry *entry;
entry = gtk_type_new (GTK_TYPE_ENTRY);
entry->text_max_length = max;
return GTK_WIDGET (entry);
}
void
gtk_entry_set_text (GtkEntry *entry,
const gchar *text)
{
gint tmp_pos;
GtkEditable *editable;
g_return_if_fail (entry != NULL);
g_return_if_fail (GTK_IS_ENTRY (entry));
g_return_if_fail (text != NULL);
editable = GTK_EDITABLE (entry);
gtk_entry_delete_text (GTK_EDITABLE(entry), 0, entry->text_length);
tmp_pos = 0;
gtk_editable_insert_text (editable, text, strlen (text), &tmp_pos);
editable->current_pos = tmp_pos;
editable->selection_start_pos = 0;
editable->selection_end_pos = 0;
if (GTK_WIDGET_DRAWABLE (entry))
gtk_entry_draw_text (entry);
}
void
gtk_entry_append_text (GtkEntry *entry,
const gchar *text)
{
gint tmp_pos;
g_return_if_fail (entry != NULL);
g_return_if_fail (GTK_IS_ENTRY (entry));
g_return_if_fail (text != NULL);
tmp_pos = entry->text_length;
gtk_editable_insert_text (GTK_EDITABLE(entry), text, strlen (text), &tmp_pos);
GTK_EDITABLE(entry)->current_pos = tmp_pos;
}
void
gtk_entry_prepend_text (GtkEntry *entry,
const gchar *text)
{
gint tmp_pos;
g_return_if_fail (entry != NULL);
g_return_if_fail (GTK_IS_ENTRY (entry));
g_return_if_fail (text != NULL);
tmp_pos = 0;
gtk_editable_insert_text (GTK_EDITABLE(entry), text, strlen (text), &tmp_pos);
GTK_EDITABLE(entry)->current_pos = tmp_pos;
}
void
gtk_entry_set_position (GtkEntry *entry,
gint position)
{
g_return_if_fail (entry != NULL);
g_return_if_fail (GTK_IS_ENTRY (entry));
if ((position == -1) || (position > entry->text_length))
GTK_EDITABLE(entry)->current_pos = entry->text_length;
else
GTK_EDITABLE(entry)->current_pos = position;
gtk_entry_adjust_scroll (entry);
}
static void
gtk_entry_set_position_from_editable (GtkEditable *editable,
gint position)
{
gtk_entry_set_position (GTK_ENTRY (editable), position);
}
void
gtk_entry_set_visibility (GtkEntry *entry,
gboolean visible)
{
g_return_if_fail (entry != NULL);
g_return_if_fail (GTK_IS_ENTRY (entry));
entry->visible = visible;
gtk_entry_recompute_offsets (entry);
gtk_widget_queue_draw (GTK_WIDGET (entry));
}
void
gtk_entry_set_editable(GtkEntry *entry,
gboolean editable)
{
g_return_if_fail (entry != NULL);
g_return_if_fail (GTK_IS_ENTRY (entry));
gtk_editable_set_editable (GTK_EDITABLE (entry), editable);
}
gchar*
gtk_entry_get_text (GtkEntry *entry)
{
static char empty_str[2] = "";
g_return_val_if_fail (entry != NULL, NULL);
g_return_val_if_fail (GTK_IS_ENTRY (entry), NULL);
if (!entry->text)
return empty_str;
return entry->text;
}
static void
gtk_entry_finalize (GtkObject *object)
{
GtkEntry *entry;
g_return_if_fail (object != NULL);
g_return_if_fail (GTK_IS_ENTRY (object));
entry = GTK_ENTRY (object);
#ifdef USE_XIM
if (GTK_EDITABLE(entry)->ic)
{
gdk_ic_destroy (GTK_EDITABLE(entry)->ic);
GTK_EDITABLE(entry)->ic = NULL;
}
#endif
if (entry->timer)
gtk_timeout_remove (entry->timer);
entry->text_size = 0;
if (entry->text)
g_free (entry->text);
if (entry->char_pos)
g_free (entry->char_pos);
if (entry->char_offset)
g_free (entry->char_offset);
entry->text = NULL;
if (entry->backing_pixmap)
gdk_pixmap_unref (entry->backing_pixmap);
(* GTK_OBJECT_CLASS (parent_class)->finalize) (object);
}
static void
gtk_entry_realize (GtkWidget *widget)
{
GtkEntry *entry;
GtkEditable *editable;
GdkWindowAttr attributes;
gint attributes_mask;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_ENTRY (widget));
GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
entry = GTK_ENTRY (widget);
editable = GTK_EDITABLE (widget);
attributes.window_type = GDK_WINDOW_CHILD;
attributes.x = widget->allocation.x;
attributes.y = widget->allocation.y + (widget->allocation.height -
widget->requisition.height) / 2;
attributes.width = widget->allocation.width;
attributes.height = widget->requisition.height;
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.visual = gtk_widget_get_visual (widget);
attributes.colormap = gtk_widget_get_colormap (widget);
attributes.event_mask = gtk_widget_get_events (widget);
attributes.event_mask |= (GDK_EXPOSURE_MASK |
GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_BUTTON1_MOTION_MASK |
GDK_BUTTON3_MOTION_MASK |
GDK_POINTER_MOTION_HINT_MASK |
GDK_ENTER_NOTIFY_MASK |
GDK_LEAVE_NOTIFY_MASK |
GDK_KEY_PRESS_MASK);
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask);
gdk_window_set_user_data (widget->window, entry);
attributes.x = widget->style->klass->xthickness + INNER_BORDER;
attributes.y = widget->style->klass->ythickness + INNER_BORDER;
attributes.width = widget->allocation.width - attributes.x * 2;
attributes.height = widget->requisition.height - attributes.y * 2;
attributes.cursor = entry->cursor = gdk_cursor_new (GDK_XTERM);
attributes_mask |= GDK_WA_CURSOR;
entry->text_area = gdk_window_new (widget->window, &attributes, attributes_mask);
gdk_window_set_user_data (entry->text_area, entry);
widget->style = gtk_style_attach (widget->style, widget->window);
gdk_window_set_background (widget->window, &widget->style->base[GTK_WIDGET_STATE (widget)]);
gdk_window_set_background (entry->text_area, &widget->style->base[GTK_WIDGET_STATE (widget)]);
#ifdef USE_XIM
if (gdk_im_ready ())
{
GdkPoint spot;
GdkRectangle rect;
gint width, height;
GdkEventMask mask;
GdkIMStyle style;
GdkIMStyle supported_style = GDK_IM_PREEDIT_NONE | GDK_IM_PREEDIT_NOTHING |
GDK_IM_PREEDIT_POSITION |
GDK_IM_STATUS_NONE | GDK_IM_STATUS_NOTHING;
if (widget->style && widget->style->font->type != GDK_FONT_FONTSET)
supported_style &= ~GDK_IM_PREEDIT_POSITION;
style = gdk_im_decide_style (supported_style);
switch (style & GDK_IM_PREEDIT_MASK)
{
case GDK_IM_PREEDIT_POSITION:
if (widget->style && widget->style->font->type != GDK_FONT_FONTSET)
{
g_warning ("over-the-spot style requires fontset");
break;
}
gdk_window_get_size (entry->text_area, &width, &height);
rect.x = 0;
rect.y = 0;
rect.width = width;
rect.height = height;
spot.x = 0;
spot.y = height;
editable->ic = gdk_ic_new (entry->text_area, entry->text_area,
style,
"spotLocation", &spot,
"area", &rect,
"fontSet", GDK_FONT_XFONT (widget->style->font),
NULL);
break;
default:
editable->ic = gdk_ic_new (entry->text_area, entry->text_area,
style, NULL);
}
if (editable->ic == NULL)
g_warning ("Can't create input context.");
else
{
GdkColormap *colormap;
mask = gdk_window_get_events (entry->text_area);
mask |= gdk_ic_get_events (editable->ic);
gdk_window_set_events (entry->text_area, mask);
if ((colormap = gtk_widget_get_colormap (widget)) !=
gtk_widget_get_default_colormap ())
{
gdk_ic_set_attr (editable->ic, "preeditAttributes",
"colorMap", GDK_COLORMAP_XCOLORMAP (colormap),
NULL);
}
gdk_ic_set_attr (editable->ic,"preeditAttributes",
"foreground", widget->style->fg[GTK_STATE_NORMAL].pixel,
"background", widget->style->base[GTK_STATE_NORMAL].pixel,
NULL);
}
}
#endif
gdk_window_show (entry->text_area);
if (editable->selection_start_pos != editable->selection_end_pos)
gtk_editable_claim_selection (editable, TRUE, GDK_CURRENT_TIME);
gtk_entry_recompute_offsets (entry);
}
static void
gtk_entry_unrealize (GtkWidget *widget)
{
GtkEntry *entry;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_ENTRY (widget));
entry = GTK_ENTRY (widget);
if (entry->text_area)
{
gdk_window_set_user_data (entry->text_area, NULL);
gdk_window_destroy (entry->text_area);
entry->text_area = NULL;
gdk_cursor_destroy (entry->cursor);
entry->cursor = NULL;
}
if (GTK_WIDGET_CLASS (parent_class)->unrealize)
(* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
}
static void
gtk_entry_draw_focus (GtkWidget *widget)
{
gint width, height;
gint x, y;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_ENTRY (widget));
if (GTK_WIDGET_DRAWABLE (widget))
{
x = 0;
y = 0;
gdk_window_get_size (widget->window, &width, &height);
if (GTK_WIDGET_HAS_FOCUS (widget))
{
x += 1;
y += 1;
width -= 2;
height -= 2;
}
else
{
gdk_draw_rectangle (widget->window,
widget->style->base_gc[GTK_WIDGET_STATE (widget)],
FALSE, x + 2, y + 2, width - 5, height - 5);
}
gtk_draw_shadow (widget->style, widget->window,
GTK_STATE_NORMAL, GTK_SHADOW_IN,
x, y, width, height);
if (GTK_WIDGET_HAS_FOCUS (widget))
{
gdk_window_get_size (widget->window, &width, &height);
gdk_draw_rectangle (widget->window, widget->style->fg_gc[GTK_STATE_NORMAL],
FALSE, 0, 0, width - 1, height - 1);
}
if (GTK_EDITABLE (widget)->editable)
gtk_entry_draw_cursor (GTK_ENTRY (widget));
}
}
static void
gtk_entry_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_ENTRY (widget));
g_return_if_fail (requisition != NULL);
requisition->width = MIN_ENTRY_WIDTH + (widget->style->klass->xthickness + INNER_BORDER) * 2;
requisition->height = (widget->style->font->ascent +
widget->style->font->descent +
(widget->style->klass->ythickness + INNER_BORDER) * 2);
}
static void
gtk_entry_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkEntry *entry;
GtkEditable *editable;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_ENTRY (widget));
g_return_if_fail (allocation != NULL);
widget->allocation = *allocation;
entry = GTK_ENTRY (widget);
editable = GTK_EDITABLE (widget);
if (GTK_WIDGET_REALIZED (widget))
{
gdk_window_move_resize (widget->window,
allocation->x,
allocation->y + (allocation->height - widget->requisition.height) / 2,
allocation->width, widget->requisition.height);
gdk_window_move_resize (entry->text_area,
widget->style->klass->xthickness + INNER_BORDER,
widget->style->klass->ythickness + INNER_BORDER,
allocation->width - (widget->style->klass->xthickness + INNER_BORDER) * 2,
widget->requisition.height - (widget->style->klass->ythickness + INNER_BORDER) * 2);
/* And make sure the cursor is on screen */
gtk_entry_adjust_scroll (entry);
#ifdef USE_XIM
if (editable->ic && (gdk_ic_get_style (editable->ic) & GDK_IM_PREEDIT_POSITION))
{
gint width, height;
GdkRectangle rect;
gdk_window_get_size (entry->text_area, &width, &height);
rect.x = 0;
rect.y = 0;
rect.width = width;
rect.height = height;
gdk_ic_set_attr (editable->ic, "preeditAttributes", "area", &rect, NULL);
}
#endif
}
}
static void
gtk_entry_draw (GtkWidget *widget,
GdkRectangle *area)
{
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_ENTRY (widget));
g_return_if_fail (area != NULL);
if (GTK_WIDGET_DRAWABLE (widget))
{
gtk_widget_draw_focus (widget);
gtk_entry_draw_text (GTK_ENTRY (widget));
}
}
static gint
gtk_entry_expose (GtkWidget *widget,
GdkEventExpose *event)
{
GtkEntry *entry;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_ENTRY (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
entry = GTK_ENTRY (widget);
if (widget->window == event->window)
gtk_widget_draw_focus (widget);
else if (entry->text_area == event->window)
gtk_entry_draw_text (GTK_ENTRY (widget));
return FALSE;
}
static gint
gtk_entry_button_press (GtkWidget *widget,
GdkEventButton *event)
{
GtkEntry *entry;
GtkEditable *editable;
gint tmp_pos;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_ENTRY (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
if (ctext_atom == GDK_NONE)
ctext_atom = gdk_atom_intern ("COMPOUND_TEXT", FALSE);
entry = GTK_ENTRY (widget);
editable = GTK_EDITABLE (widget);
if (entry->button && (event->button != entry->button))
return FALSE;
entry->button = event->button;
if (!GTK_WIDGET_HAS_FOCUS (widget))
gtk_widget_grab_focus (widget);
if (event->button == 1)
{
switch (event->type)
{
case GDK_BUTTON_PRESS:
gtk_grab_add (widget);
tmp_pos = gtk_entry_position (entry, event->x + entry->scroll_offset);
/* Set it now, so we display things right. We'll unset it
* later if things don't work out */
editable->has_selection = TRUE;
gtk_entry_set_selection (editable, tmp_pos, tmp_pos);
editable->current_pos = editable->selection_start_pos;
break;
case GDK_2BUTTON_PRESS:
gtk_select_word (entry, event->time);
break;
case GDK_3BUTTON_PRESS:
gtk_select_line (entry, event->time);
break;
default:
break;
}
}
else if (event->type == GDK_BUTTON_PRESS)
{
if ((event->button == 2) && editable->editable)
{
if (editable->selection_start_pos == editable->selection_end_pos ||
editable->has_selection)
editable->current_pos = gtk_entry_position (entry, event->x + entry->scroll_offset);
gtk_selection_convert (widget, GDK_SELECTION_PRIMARY,
ctext_atom, event->time);
}
else
{
gtk_grab_add (widget);
tmp_pos = gtk_entry_position (entry, event->x + entry->scroll_offset);
gtk_entry_set_selection (editable, tmp_pos, tmp_pos);
editable->has_selection = FALSE;
editable->current_pos = editable->selection_start_pos;
if (gdk_selection_owner_get (GDK_SELECTION_PRIMARY) == widget->window)
gtk_selection_owner_set (NULL, GDK_SELECTION_PRIMARY, event->time);
}
}
return FALSE;
}
static gint
gtk_entry_button_release (GtkWidget *widget,
GdkEventButton *event)
{
GtkEntry *entry;
GtkEditable *editable;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_ENTRY (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
entry = GTK_ENTRY (widget);
editable = GTK_EDITABLE (widget);
if (entry->button != event->button)
return FALSE;
entry->button = 0;
if (event->button == 1)
{
gtk_grab_remove (widget);
editable->has_selection = FALSE;
if (editable->selection_start_pos != editable->selection_end_pos)
{
if (gtk_selection_owner_set (widget,
GDK_SELECTION_PRIMARY,
event->time))
editable->has_selection = TRUE;
else
gtk_entry_queue_draw (entry);
}
else
{
if (gdk_selection_owner_get (GDK_SELECTION_PRIMARY) == widget->window)
gtk_selection_owner_set (NULL, GDK_SELECTION_PRIMARY, event->time);
}
}
else if (event->button == 3)
{
gtk_grab_remove (widget);
}
return FALSE;
}
static gint
gtk_entry_motion_notify (GtkWidget *widget,
GdkEventMotion *event)
{
GtkEntry *entry;
gint x;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_ENTRY (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
entry = GTK_ENTRY (widget);
if (entry->button == 0)
return FALSE;
x = event->x;
if (event->is_hint || (entry->text_area != event->window))
gdk_window_get_pointer (entry->text_area, &x, NULL, NULL);
GTK_EDITABLE(entry)->selection_end_pos = gtk_entry_position (entry, x + entry->scroll_offset);
GTK_EDITABLE(entry)->current_pos = GTK_EDITABLE(entry)->selection_end_pos;
gtk_entry_adjust_scroll (entry);
gtk_entry_queue_draw (entry);
return FALSE;
}
static gint
gtk_entry_key_press (GtkWidget *widget,
GdkEventKey *event)
{
GtkEntry *entry;
GtkEditable *editable;
gint return_val;
gint key;
guint initial_pos;
gint extend_selection;
gint extend_start;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_ENTRY (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
entry = GTK_ENTRY (widget);
editable = GTK_EDITABLE (widget);
return_val = FALSE;
if(editable->editable == FALSE)
return FALSE;
initial_pos = editable->current_pos;
extend_selection = event->state & GDK_SHIFT_MASK;
extend_start = FALSE;
if (extend_selection)
{
if (editable->selection_start_pos == editable->selection_end_pos)
{
editable->selection_start_pos = editable->current_pos;
editable->selection_end_pos = editable->current_pos;
}
extend_start = (editable->current_pos == editable->selection_start_pos);
}
switch (event->keyval)
{
case GDK_BackSpace:
return_val = TRUE;
if (event->state & GDK_CONTROL_MASK)
gtk_delete_backward_word (entry);
else
gtk_delete_backward_character (entry);
break;
case GDK_Clear:
return_val = TRUE;
gtk_delete_line (entry);
break;
case GDK_Insert:
return_val = TRUE;
if (event->state & GDK_SHIFT_MASK)
{
extend_selection = FALSE;
gtk_editable_paste_clipboard (editable);
}
else if (event->state & GDK_CONTROL_MASK)
{
gtk_editable_copy_clipboard (editable);
}
else
{
/* gtk_toggle_insert(entry) -- IMPLEMENT */
}
break;
case GDK_Delete:
return_val = TRUE;
if (event->state & GDK_CONTROL_MASK)
gtk_delete_forward_word (entry);
else if (event->state & GDK_SHIFT_MASK)
{
extend_selection = FALSE;
gtk_editable_cut_clipboard (editable);
}
else
gtk_delete_forward_character (entry);
break;
case GDK_Home:
return_val = TRUE;
gtk_move_beginning_of_line (entry);
break;
case GDK_End:
return_val = TRUE;
gtk_move_end_of_line (entry);
break;
case GDK_Left:
return_val = TRUE;
if (event->state & GDK_CONTROL_MASK)
gtk_move_backward_word (entry);
else
gtk_move_backward_character (entry);
break;
case GDK_Right:
return_val = TRUE;
if (event->state & GDK_CONTROL_MASK)
gtk_move_forward_word (entry);
else
gtk_move_forward_character (entry);
break;
case GDK_Return:
return_val = TRUE;
gtk_signal_emit_by_name (GTK_OBJECT (entry), "activate");
break;
/* The next two keys should not be inserted literally. Any others ??? */
case GDK_Tab:
case GDK_Escape:
break;
default:
if ((event->keyval >= 0x20) && (event->keyval <= 0xFF))
{
key = event->keyval;
if (event->state & GDK_CONTROL_MASK)
{
if ((key >= 'A') && (key <= 'Z'))
key -= 'A' - 'a';
if ((key >= 'a') && (key <= 'z') && control_keys[key - 'a'])
{
(* control_keys[key - 'a']) (editable, event->time);
return_val = TRUE;
}
break;
}
else if (event->state & GDK_MOD1_MASK)
{
if ((key >= 'A') && (key <= 'Z'))
key -= 'A' - 'a';
if ((key >= 'a') && (key <= 'z') && alt_keys[key - 'a'])
{
(* alt_keys[key - 'a']) (editable, event->time);
return_val = TRUE;
}
break;
}
}
if (event->length > 0)
{
gint tmp_pos;
extend_selection = FALSE;
gtk_editable_delete_selection (editable);
tmp_pos = editable->current_pos;
gtk_editable_insert_text (editable, event->string, event->length, &tmp_pos);
editable->current_pos = tmp_pos;
return_val = TRUE;
}
break;
}
/* since we emit signals from within the above code,
* the widget might already be destroyed or at least
* unrealized.
*/
if (GTK_WIDGET_REALIZED (editable) &&
return_val && (editable->current_pos != initial_pos))
{
if (extend_selection)
{
if (editable->current_pos < editable->selection_start_pos)
editable->selection_start_pos = editable->current_pos;
else if (editable->current_pos > editable->selection_end_pos)
editable->selection_end_pos = editable->current_pos;
else
{
if (extend_start)
editable->selection_start_pos = editable->current_pos;
else
editable->selection_end_pos = editable->current_pos;
}
}
else
{
editable->selection_start_pos = 0;
editable->selection_end_pos = 0;
}
gtk_editable_claim_selection (editable,
editable->selection_start_pos != editable->selection_end_pos,
event->time);
gtk_entry_adjust_scroll (entry);
gtk_entry_queue_draw (entry);
}
return return_val;
}
static gint
gtk_entry_focus_in (GtkWidget *widget,
GdkEventFocus *event)
{
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_ENTRY (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS);
gtk_widget_draw_focus (widget);
#ifdef USE_XIM
if (GTK_EDITABLE(widget)->ic)
gdk_im_begin (GTK_EDITABLE(widget)->ic, GTK_ENTRY(widget)->text_area);
#endif
return FALSE;
}
static gint
gtk_entry_focus_out (GtkWidget *widget,
GdkEventFocus *event)
{
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_ENTRY (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS);
gtk_widget_draw_focus (widget);
#ifdef USE_XIM
gdk_im_end ();
#endif
return FALSE;
}
static void
gtk_entry_make_backing_pixmap (GtkEntry *entry, gint width, gint height)
{
gint pixmap_width, pixmap_height;
if (!entry->backing_pixmap)
{
/* allocate */
entry->backing_pixmap = gdk_pixmap_new (entry->text_area,
width, height,
-1);
}
else
{
/* reallocate if sizes don't match */
gdk_window_get_size (entry->backing_pixmap,
&pixmap_width, &pixmap_height);
if ((pixmap_width != width) || (pixmap_height != height))
{
gdk_pixmap_unref (entry->backing_pixmap);
entry->backing_pixmap = gdk_pixmap_new (entry->text_area,
width, height,
-1);
}
}
}
static void
gtk_entry_draw_text (GtkEntry *entry)
{
GtkWidget *widget;
GtkEditable *editable;
GtkStateType selected_state;
gint start_char;
gint start_pos;
gint end_pos;
gint end_char;
gint start_xoffset;
gint selection_start_char;
gint selection_end_char;
gint selection_start_pos;
gint selection_end_pos;
gint selection_start_xoffset;
gint selection_end_xoffset;
gint width, height;
gint y;
GdkDrawable *drawable;
gint use_backing_pixmap;
gchar *stars;
gchar *toprint;
g_return_if_fail (entry != NULL);
g_return_if_fail (GTK_IS_ENTRY (entry));
if (entry->timer)
{
gtk_timeout_remove (entry->timer);
entry->timer = 0;
}
if (GTK_WIDGET_DRAWABLE (entry))
{
widget = GTK_WIDGET (entry);
editable = GTK_EDITABLE (entry);
if (!entry->text)
{
gdk_window_clear (entry->text_area);
if (editable->editable)
gtk_entry_draw_cursor (entry);
return;
}
gdk_window_get_size (entry->text_area, &width, &height);
/*
If the widget has focus, draw on a backing pixmap to avoid flickering
and copy it to the text_area.
Otherwise draw to text_area directly for better speed.
*/
use_backing_pixmap = GTK_WIDGET_HAS_FOCUS (widget) && (entry->text != NULL);
if (use_backing_pixmap)
{
gtk_entry_make_backing_pixmap (entry, width, height);
drawable = entry->backing_pixmap;
gdk_draw_rectangle (drawable,
widget->style->base_gc[GTK_WIDGET_STATE(widget)],
TRUE,
0, 0,
width,
height);
}
else
{
drawable = entry->text_area;
gdk_window_clear (entry->text_area);
}
y = (height - (widget->style->font->ascent + widget->style->font->descent)) / 2;
y += widget->style->font->ascent;
start_char = gtk_entry_find_position (entry, entry->scroll_offset);
start_pos = entry->char_pos[start_char];
start_xoffset = entry->char_offset[start_char] - entry->scroll_offset;
end_char = gtk_entry_find_position (entry, entry->scroll_offset + width);
end_pos = entry->char_pos[end_char];
if (end_pos < entry->text_length)
end_pos += 1;
selected_state = GTK_STATE_SELECTED;
if (!editable->has_selection)
selected_state = GTK_STATE_ACTIVE;
selection_start_pos = MIN (editable->selection_start_pos, editable->selection_end_pos);
selection_end_pos = MAX (editable->selection_start_pos, editable->selection_end_pos);
selection_start_pos = CLAMP (selection_start_pos, start_pos, end_pos);
selection_end_pos = CLAMP (selection_end_pos, start_pos, end_pos);
selection_start_char = gtk_entry_find_char(entry,selection_start_pos);
selection_end_char = gtk_entry_find_char(entry,selection_end_pos);
selection_start_xoffset =
entry->char_offset[selection_start_char] - entry->scroll_offset;
selection_end_xoffset =
entry->char_offset[selection_end_char] -entry->scroll_offset;
/* if entry->visible, print a bunch of stars. If not, print the standard text. */
if (entry->visible)
{
toprint = entry->text + start_pos;
}
else
{
gint i;
stars = g_malloc (end_char - start_char);
for (i = 0; i < end_char - start_char; i++)
stars[i] = '*';
toprint = stars;
/* Since '*' is always one byte, work in bytes */
start_pos = start_char;
selection_start_pos = selection_start_char;
selection_end_pos = selection_end_char;
end_pos = end_char;
}
if (selection_start_pos > start_pos)
gdk_draw_text (drawable, widget->style->font,
widget->style->fg_gc[GTK_WIDGET_STATE (widget)],
start_xoffset, y,
toprint,
selection_start_pos - start_pos);
if ((selection_end_pos >= start_pos) &&
(selection_start_pos < end_pos) &&
(selection_start_pos != selection_end_pos))
{
gdk_draw_rectangle (drawable,
widget->style->bg_gc[selected_state],
TRUE,
selection_start_xoffset,
0,
selection_end_xoffset - selection_start_xoffset,
-1);
gdk_draw_text (drawable, widget->style->font,
widget->style->fg_gc[selected_state],
selection_start_xoffset, y,
toprint + selection_start_pos - start_pos,
selection_end_pos - selection_start_pos);
}
if (selection_end_pos < end_pos)
gdk_draw_text (drawable, widget->style->font,
widget->style->fg_gc[GTK_WIDGET_STATE (widget)],
selection_end_xoffset, y,
toprint + selection_end_pos - start_pos,
end_pos - selection_end_pos);
/* free the space allocated for the stars if it's neccessary. */
if (!entry->visible)
g_free (toprint);
if (editable->editable)
gtk_entry_draw_cursor_on_drawable (entry, drawable);
if (use_backing_pixmap)
gdk_draw_pixmap(entry->text_area,
widget->style->fg_gc[GTK_STATE_NORMAL],
entry->backing_pixmap,
0, 0, 0, 0, width, height);
}
}
static void
gtk_entry_draw_cursor (GtkEntry *entry)
{
g_return_if_fail (entry != NULL);
g_return_if_fail (GTK_IS_ENTRY (entry));
gtk_entry_draw_cursor_on_drawable (entry, entry->text_area);
}
static void
gtk_entry_draw_cursor_on_drawable (GtkEntry *entry, GdkDrawable *drawable)
{
GtkWidget *widget;
GtkEditable *editable;
GdkGC *gc;
gint xoffset;
gint text_area_height;
g_return_if_fail (entry != NULL);
g_return_if_fail (GTK_IS_ENTRY (entry));
if (GTK_WIDGET_DRAWABLE (entry))
{
widget = GTK_WIDGET (entry);
editable = GTK_EDITABLE (entry);
xoffset = entry->char_offset[gtk_entry_find_char (entry, editable->current_pos)];
xoffset -= entry->scroll_offset;
if (GTK_WIDGET_HAS_FOCUS (widget) &&
(editable->selection_start_pos == editable->selection_end_pos))
gc = widget->style->fg_gc[GTK_STATE_NORMAL];
else
gc = widget->style->base_gc[GTK_WIDGET_STATE(widget)];
gdk_window_get_size (entry->text_area, NULL, &text_area_height);
gdk_draw_line (drawable, gc, xoffset, 0, xoffset, text_area_height);
#ifdef USE_XIM
if (gdk_im_ready() && editable->ic &&
gdk_ic_get_style (editable->ic) & GDK_IM_PREEDIT_POSITION)
{
GdkPoint spot;
spot.x = xoffset;
spot.y = (text_area_height + (widget->style->font->ascent - widget->style->font->descent) + 1) / 2;
gdk_ic_set_attr (editable->ic, "preeditAttributes", "spotLocation", &spot, NULL);
}
#endif
}
}
static void
gtk_entry_queue_draw (GtkEntry *entry)
{
g_return_if_fail (entry != NULL);
g_return_if_fail (GTK_IS_ENTRY (entry));
if (!entry->timer)
entry->timer = gtk_timeout_add (DRAW_TIMEOUT, gtk_entry_timer, entry);
}
static gint
gtk_entry_timer (gpointer data)
{
GtkEntry *entry;
g_return_val_if_fail (data != NULL, FALSE);
entry = GTK_ENTRY (data);
entry->timer = 0;
gtk_entry_draw_text (entry);
return FALSE;
}
static gint
gtk_entry_find_position (GtkEntry *entry,
gint x)
{
gint start = 0;
gint end = entry->nchars;
gint half;
if (x <= 0)
return 0;
if (x >= entry->char_offset[end])
return end;
/* invariant - char_offset[start] <= x < char_offset[end] */
while (start != end)
{
half = (start+end)/2;
if (half == start)
return half;
else if (entry->char_offset[half] <= x)
start = half;
else
end = half;
}
return start;
}
static gint
gtk_entry_position (GtkEntry *entry,
gint x)
{
return entry->char_pos[gtk_entry_find_position(entry, x)];
}
void
gtk_entry_adjust_scroll (GtkEntry *entry)
{
gint xoffset, max_offset;
gint text_area_width;
g_return_if_fail (entry != NULL);
g_return_if_fail (GTK_IS_ENTRY (entry));
if (!entry->text_area)
return;
gdk_window_get_size (entry->text_area, &text_area_width, NULL);
/* Display as much text as we can */
max_offset = MAX(0, entry->char_offset[entry->nchars] - text_area_width);
if (entry->scroll_offset > max_offset)
entry->scroll_offset = max_offset;
/* And make sure cursor is on screen */
xoffset = entry->char_offset[gtk_entry_find_char (entry, GTK_EDITABLE(entry)->current_pos)];
xoffset -= entry->scroll_offset;
if (xoffset < 0)
entry->scroll_offset += xoffset;
else if (xoffset > text_area_width)
entry->scroll_offset += xoffset - text_area_width + 1;
gtk_widget_queue_draw (GTK_WIDGET (entry));
}
static void
gtk_entry_grow_text (GtkEntry *entry)
{
gint previous_size;
gint i;
g_return_if_fail (entry != NULL);
g_return_if_fail (GTK_IS_ENTRY (entry));
previous_size = entry->text_size;
if (!entry->text_size)
entry->text_size = 128;
else
entry->text_size *= 2;
entry->text = g_realloc (entry->text, entry->text_size);
entry->char_pos = g_realloc (entry->char_pos,
entry->text_size * sizeof(guint16));
entry->char_offset = g_realloc (entry->char_offset,
entry->text_size * sizeof(guint));
if (entry->text_length == 0) /* initial allocation */
{
entry->char_pos[0] = 0;
entry->char_offset[0] = 0;
}
for (i = previous_size; i < entry->text_size; i++)
entry->text[i] = '\0';
}
static void
gtk_entry_insert_text (GtkEditable *editable,
const gchar *new_text,
gint new_text_length,
gint *position)
{
gchar *text;
gint start_char;
gint end_char;
gint start_pos;
gint last_char;
gint end_pos;
gint last_pos;
gint max_length;
gint i;
gint insertion_chars;
guint16 *insertion_pos = NULL; /* Quiet the compiler */
GtkEntry *entry;
g_return_if_fail (editable != NULL);
g_return_if_fail (GTK_IS_ENTRY (editable));
entry = GTK_ENTRY (editable);
if (new_text_length < 0)
new_text_length = strlen (new_text);
/* The algorithms here will work as long as, the text size (a
* multiple of 2), fits into a guint16 but we specify a shorter
* maximum length so that if the user pastes a very long text, there
* is not a long hang from the slow X_LOCALE functions. */
if (entry->text_max_length == 0)
max_length = 2047;
else
max_length = MIN (2047, entry->text_max_length);
/* Make sure we do not exceed the maximum size of the entry. */
if (new_text_length + entry->text_length > max_length)
new_text_length = max_length - entry->text_length;
/* Don't insert anything, if there was nothing to insert. */
if (new_text_length <= 0)
return;
/* Find the length of the inserted text in characters, chop off
partial/invalid characters */
if (gtk_use_mb)
{
gint len = 0;
insertion_pos = g_new (guint16, new_text_length+1);
insertion_chars = 0;
for (i=0; i<new_text_length; i+=len)
{
len = mblen (&new_text[i], MIN(MB_CUR_MAX,new_text_length-i));
if (len < 0)
break;
insertion_pos[insertion_chars] = i;
insertion_chars++;
}
insertion_pos[insertion_chars] = i;
new_text_length = i;
}
else
insertion_chars = new_text_length;
/* Make sure we are inserting at integral character position */
start_char = gtk_entry_find_char (entry, *position);
start_pos = entry->char_pos[start_char];
end_pos = start_pos + new_text_length;
last_pos = new_text_length + entry->text_length;
if (editable->selection_start_pos >= *position)
editable->selection_start_pos += new_text_length;
if (editable->selection_end_pos >= *position)
editable->selection_end_pos += new_text_length;
while (last_pos >= entry->text_size)
gtk_entry_grow_text (entry);
text = entry->text;
for (i = last_pos - 1; i >= end_pos; i--)
text[i] = text[i- (end_pos - start_pos)];
for (i = start_pos; i < end_pos; i++)
text[i] = new_text[i - start_pos];
if (gtk_use_mb)
{
/* Fix up the character positions */
end_char = start_char + insertion_chars;
last_char = entry->nchars + insertion_chars;
for (i = last_char; i >= end_char; i--)
entry->char_pos[i]
= entry->char_pos[i - insertion_chars] + new_text_length;
for (i = 1; i < insertion_chars ; i++)
entry->char_pos[start_char+i] =
entry->char_pos[start_char] + insertion_pos[i];
g_free (insertion_pos);
}
else
{
end_char = end_pos;
last_char = last_pos;
for (i = start_char ; i <= last_char ; i++)
entry->char_pos[i] = i;
}
/* Fix up the the character offsets */
if (GTK_WIDGET_REALIZED (entry))
{
gint offset = 0;
for (i = last_char; i >= end_char; i--)
entry->char_offset[i]
= entry->char_offset[i - insertion_chars];
for (i=start_char; i<end_char; i++)
{
entry->char_offset[i] = entry->char_offset[start_char] + offset;
if (entry->visible)
{
offset += gdk_text_width (GTK_WIDGET (entry)->style->font,
entry->text + entry->char_pos[i],
entry->char_pos[i+1] - entry->char_pos[i]);
}
else
{
offset += gdk_text_width (GTK_WIDGET (entry)->style->font, "*", 1);
}
}
for (i = end_char ; i <= last_char ; i++)
entry->char_offset[i] += offset;
}
entry->text_length += new_text_length;
entry->nchars += insertion_chars;
*position = end_pos;
gtk_entry_queue_draw (entry);
}
/* Recompute the x offsets of all characters in the buffer */
static void
gtk_entry_recompute_offsets (GtkEntry *entry)
{
gint i;
gint offset = 0;
for (i=0; i<entry->nchars; i++)
{
entry->char_offset[i] = offset;
if (entry->visible)
{
offset += gdk_text_width (GTK_WIDGET (entry)->style->font,
entry->text + entry->char_pos[i],
entry->char_pos[i+1] - entry->char_pos[i]);
}
else
{
offset += gdk_text_width (GTK_WIDGET (entry)->style->font, "*", 1);
}
}
entry->char_offset[i] = offset;
}
/* Given a position in the entry, find the character index of the
* last character with position <= the given position
*/
static gint
gtk_entry_find_char (GtkEntry *entry, gint position)
{
gint start = 0;
gint end = entry->nchars;
gint half;
if (position >= entry->char_pos[end])
return end;
if (position < 0)
return 0;
/* invariant - char_pos[start] <= position < char_pos[end] */
while (start != end)
{
half = (start+end)/2;
if (half == start)
return half;
else if (entry->char_pos[half] <= position)
start = half;
else
end = half;
}
return start;
}
static void
gtk_entry_delete_text (GtkEditable *editable,
gint start_pos,
gint end_pos)
{
gchar *text;
gint deletion_length;
gint start_char;
gint end_char;
gint i;
GtkEntry *entry;
g_return_if_fail (editable != NULL);
g_return_if_fail (GTK_IS_ENTRY (editable));
entry = GTK_ENTRY (editable);
if (end_pos < 0)
end_pos = entry->text_length;
start_char = gtk_entry_find_char (entry, start_pos);
end_char = gtk_entry_find_char (entry, end_pos);
start_pos = entry->char_pos[start_char];
end_pos = entry->char_pos[end_char];
if (editable->selection_start_pos > start_pos)
editable->selection_start_pos -= MIN(end_pos, editable->selection_start_pos) - start_pos;
if (editable->selection_end_pos > start_pos)
editable->selection_end_pos -= MIN(end_pos, editable->selection_end_pos) - start_pos;
if ((start_pos < end_pos) &&
(start_pos >= 0) &&
(end_pos <= entry->text_length))
{
text = entry->text;
deletion_length = end_pos - start_pos;
/* Fix up the character offsets */
if (GTK_WIDGET_REALIZED (entry))
{
gint deletion_width =
entry->char_offset[end_char] - entry->char_offset[start_char];
for (i = 0 ; i <= entry->nchars - end_char; i++)
entry->char_offset[start_char+i] = entry->char_offset[end_char+i] - deletion_width;
}
for (i = end_pos; i < entry->text_length; i++)
text[i - deletion_length] = text[i];
for (i = entry->text_length - deletion_length; i < entry->text_length; i++)
text[i] = '\0';
for (i = 0 ; i <= entry->nchars - end_char; i++)
entry->char_pos[start_char+i] = entry->char_pos[end_char+i] - deletion_length;
entry->nchars -= end_char - start_char;
entry->text_length -= deletion_length;
editable->current_pos = start_pos;
}
gtk_entry_queue_draw (entry);
}
static void
gtk_entry_update_text (GtkEditable *editable,
gint start_pos,
gint end_pos)
{
gtk_entry_queue_draw (GTK_ENTRY(editable));
}
static gchar *
gtk_entry_get_chars (GtkEditable *editable,
gint start_pos,
gint end_pos)
{
gchar *retval;
GtkEntry *entry;
gchar c;
g_return_val_if_fail (editable != NULL, NULL);
g_return_val_if_fail (GTK_IS_ENTRY (editable), NULL);
entry = GTK_ENTRY (editable);
if (end_pos < 0)
end_pos = entry->text_length;
start_pos = MIN(entry->text_length, start_pos);
end_pos = MIN(entry->text_length, end_pos);
if (start_pos <= end_pos)
{
c = entry->text[end_pos];
entry->text[end_pos] = '\0';
retval = g_strdup (&entry->text[start_pos]);
entry->text[end_pos] = c;
return retval;
}
else
return NULL;
}
static void
gtk_entry_move_cursor (GtkEditable *editable,
gint x,
gint y)
{
gint len;
GtkEntry *entry;
entry = GTK_ENTRY (editable);
/* Horizontal motion */
if (x > 0)
{
while (x-- != 0)
{
if (gtk_use_mb)
{
if (editable->current_pos < entry->text_length)
{
len = mblen (entry->text+editable->current_pos, MB_CUR_MAX);
editable->current_pos += (len>0)? len:1;
}
if (editable->current_pos > entry->text_length)
editable->current_pos = entry->text_length;
}
else
{
if (editable->current_pos < entry->text_length)
editable->current_pos ++;
}
}
}
else if (x < 0)
{
while (x++ != 0)
{
if (0 < editable->current_pos)
{
if (gtk_use_mb)
editable->current_pos =
entry->char_pos[gtk_entry_find_char (entry, editable->current_pos - 1)];
else
editable->current_pos--;
}
}
}
/* Ignore vertical motion */
}
static void
gtk_move_forward_character (GtkEntry *entry)
{
gtk_entry_move_cursor (GTK_EDITABLE (entry), 1, 0);
}
static void
gtk_move_backward_character (GtkEntry *entry)
{
gtk_entry_move_cursor (GTK_EDITABLE (entry), -1, 0);
}
static void
gtk_entry_move_word (GtkEditable *editable,
gint n)
{
if (n > 0)
{
while (n-- != 0)
gtk_move_forward_word (GTK_ENTRY (editable));
}
else if (n < 0)
{
while (n++ != 0)
gtk_move_backward_word (GTK_ENTRY (editable));
}
}
static void
gtk_move_forward_word (GtkEntry *entry)
{
GtkEditable *editable;
gchar *text;
gint i;
wchar_t c;
gint len;
editable = GTK_EDITABLE (entry);
if (entry->text && (editable->current_pos < entry->text_length))
{
text = entry->text;
i = editable->current_pos;
if (gtk_use_mb)
{
len = mbtowc (&c, text+i, MB_CUR_MAX);
if (!iswalnum(c))
for (; i < entry->text_length; i+=len)
{
len = mbtowc (&c, text+i, MB_CUR_MAX);
if (len < 1 || iswalnum(c))
break;
}
for (; i < entry->text_length; i+=len)
{
len = mbtowc (&c, text+i, MB_CUR_MAX);
if (len < 1 || !iswalnum(c))
break;
}
editable->current_pos = i;
if (editable->current_pos > entry->text_length)
editable->current_pos = entry->text_length;
}
else
{
if (!isalnum (text[i]))
for (; i < entry->text_length; i++)
{
if (isalnum(text[i]))
break;
}
for (; i < entry->text_length; i++)
{
if (!isalnum(text[i]))
break;
}
editable->current_pos = i;
}
}
}
static void
gtk_move_backward_word (GtkEntry *entry)
{
GtkEditable *editable;
gchar *text;
gint i;
wchar_t c;
editable = GTK_EDITABLE (entry);
if (entry->text && editable->current_pos > 0)
{
text = entry->text;
if (gtk_use_mb)
{
i = gtk_entry_find_char (entry, editable->current_pos - 1);
mbtowc (&c, text+entry->char_pos[i], MB_CUR_MAX);
if (!iswalnum(c))
for (; i >= 0; i--)
{
mbtowc (&c, text+entry->char_pos[i], MB_CUR_MAX);
if (iswalnum(c))
break;
}
for (; i >= 0; i--)
{
mbtowc (&c, text+entry->char_pos[i], MB_CUR_MAX);
if (!iswalnum(c))
{
i++;
break;
}
}
if (i < 0)
i = 0;
editable->current_pos = entry->char_pos[i];
}
else
{
i = editable->current_pos - 1;
if (!isalnum(text[i]))
for (; i >= 0; i--)
{
if (isalnum(text[i]))
break;
}
for (; i >= 0; i--)
{
if (!isalnum(text[i]))
{
i++;
break;
}
}
if (i < 0)
i = 0;
editable->current_pos = i;
}
}
}
static void
gtk_entry_move_to_column (GtkEditable *editable, gint column)
{
GtkEntry *entry;
entry = GTK_ENTRY (editable);
if (column < 0 || column > entry->nchars)
editable->current_pos = entry->text_length;
else
editable->current_pos = entry->char_pos[column];
}
static void
gtk_move_beginning_of_line (GtkEntry *entry)
{
gtk_entry_move_to_column (GTK_EDITABLE (entry), 0);
}
static void
gtk_move_end_of_line (GtkEntry *entry)
{
gtk_entry_move_to_column (GTK_EDITABLE (entry), -1);
}
static void
gtk_entry_kill_char (GtkEditable *editable,
gint direction)
{
if (editable->selection_start_pos != editable->selection_end_pos)
gtk_editable_delete_selection (editable);
else
{
gint old_pos = editable->current_pos;
if (direction >= 0)
{
gtk_entry_move_cursor (editable, 1, 0);
gtk_editable_delete_text (editable, old_pos, editable->current_pos);
}
else
{
gtk_entry_move_cursor (editable, -1, 0);
gtk_editable_delete_text (editable, editable->current_pos, old_pos);
}
}
}
static void
gtk_delete_forward_character (GtkEntry *entry)
{
gtk_entry_kill_char (GTK_EDITABLE (entry), 1);
}
static void
gtk_delete_backward_character (GtkEntry *entry)
{
gtk_entry_kill_char (GTK_EDITABLE (entry), -1);
}
static void
gtk_entry_kill_word (GtkEditable *editable,
gint direction)
{
if (editable->selection_start_pos != editable->selection_end_pos)
gtk_editable_delete_selection (editable);
else
{
gint old_pos = editable->current_pos;
if (direction >= 0)
{
gtk_entry_move_word (editable, 1);
gtk_editable_delete_text (editable, old_pos, editable->current_pos);
}
else
{
gtk_entry_move_word (editable, -1);
gtk_editable_delete_text (editable, editable->current_pos, old_pos);
}
}
}
static void
gtk_delete_forward_word (GtkEntry *entry)
{
gtk_entry_kill_word (GTK_EDITABLE (entry), 1);
}
static void
gtk_delete_backward_word (GtkEntry *entry)
{
gtk_entry_kill_word (GTK_EDITABLE (entry), -1);
}
static void
gtk_entry_kill_line (GtkEditable *editable,
gint direction)
{
gint old_pos = editable->current_pos;
if (direction >= 0)
{
gtk_entry_move_to_column (editable, -1);
gtk_editable_delete_text (editable, old_pos, editable->current_pos);
}
else
{
gtk_entry_move_to_column (editable, 0);
gtk_editable_delete_text (editable, editable->current_pos, old_pos);
}
}
static void
gtk_delete_line (GtkEntry *entry)
{
gtk_entry_move_to_column (GTK_EDITABLE (entry), 0);
gtk_entry_kill_line (GTK_EDITABLE (entry), 1);
}
static void
gtk_delete_to_line_end (GtkEntry *entry)
{
gtk_editable_delete_text (GTK_EDITABLE(entry), GTK_EDITABLE(entry)->current_pos, entry->text_length);
}
static void
gtk_select_word (GtkEntry *entry,
guint32 time)
{
GtkEditable *editable;
gint start_pos;
gint end_pos;
editable = GTK_EDITABLE (entry);
gtk_move_backward_word (entry);
start_pos = editable->current_pos;
gtk_move_forward_word (entry);
end_pos = editable->current_pos;
editable->has_selection = TRUE;
gtk_entry_set_selection (editable, start_pos, end_pos);
gtk_editable_claim_selection (editable, start_pos != end_pos, time);
}
static void
gtk_select_line (GtkEntry *entry,
guint32 time)
{
GtkEditable *editable;
editable = GTK_EDITABLE (entry);
editable->has_selection = TRUE;
gtk_entry_set_selection (editable, 0, entry->text_length);
gtk_editable_claim_selection (editable, entry->text_length != 0, time);
editable->current_pos = editable->selection_end_pos;
}
static void
gtk_entry_set_selection (GtkEditable *editable,
gint start,
gint end)
{
g_return_if_fail (editable != NULL);
g_return_if_fail (GTK_IS_ENTRY (editable));
if (end < 0)
end = GTK_ENTRY (editable)->text_length;
editable->selection_start_pos = start;
editable->selection_end_pos = end;
gtk_entry_queue_draw (GTK_ENTRY (editable));
}
void
gtk_entry_select_region (GtkEntry *entry,
gint start,
gint end)
{
gtk_editable_select_region (GTK_EDITABLE (entry), start, end);
}
void
gtk_entry_set_max_length (GtkEntry *entry,
guint16 max)
{
g_return_if_fail (entry != NULL);
g_return_if_fail (GTK_IS_ENTRY (entry));
if (max && entry->text_length > max)
gtk_editable_delete_text(GTK_EDITABLE(entry), max, -1);
entry->text_max_length = max;
}
static void
gtk_entry_style_set (GtkWidget *widget,
GtkStyle *previous_style)
{
GtkEntry *entry;
gint scroll_char;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_ENTRY (widget));
if (previous_style && GTK_WIDGET_REALIZED (widget))
{
entry = GTK_ENTRY (widget);
scroll_char = gtk_entry_find_position (entry, entry->scroll_offset);
gtk_entry_recompute_offsets (GTK_ENTRY (widget));
entry->scroll_offset = entry->char_offset[scroll_char];
gtk_entry_adjust_scroll (entry);
gdk_window_set_background (widget->window, &widget->style->base[GTK_WIDGET_STATE (widget)]);
gdk_window_set_background (entry->text_area, &widget->style->base[GTK_WIDGET_STATE (widget)]);
}
if (GTK_WIDGET_DRAWABLE (widget))
gdk_window_clear (widget->window);
}
static void
gtk_entry_state_changed (GtkWidget *widget,
GtkStateType previous_state)
{
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_ENTRY (widget));
if (GTK_WIDGET_REALIZED (widget))
{
gdk_window_set_background (widget->window, &widget->style->base[GTK_WIDGET_STATE (widget)]);
gdk_window_set_background (GTK_ENTRY (widget)->text_area, &widget->style->base[GTK_WIDGET_STATE (widget)]);
}
if (GTK_WIDGET_DRAWABLE (widget))
gdk_window_clear (widget->window);
}
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