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sugar-toolkit-gtk3/src/sugar/sugar-address-entry.c

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/*
* Copyright (C) 2006-2007 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser 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 <math.h>
#include <gtk/gtkentry.h>
#include "sugar-address-entry.h"
enum {
PROP_0,
PROP_PROGRESS,
PROP_ADDRESS,
PROP_TITLE
};
typedef enum {
CURSOR_STANDARD,
CURSOR_DND
} CursorType;
static void _gtk_entry_effective_inner_border (GtkEntry *entry,
GtkBorder *border);
static void get_text_area_size (GtkEntry *entry,
gint *x,
gint *y,
gint *width,
gint *height);
G_DEFINE_TYPE(SugarAddressEntry, sugar_address_entry, GTK_TYPE_ENTRY)
static GQuark quark_inner_border = 0;
static const GtkBorder default_inner_border = { 2, 2, 2, 2 };
static void
draw_insertion_cursor (GtkEntry *entry,
GdkRectangle *cursor_location,
gboolean is_primary,
PangoDirection direction,
gboolean draw_arrow)
{
GtkWidget *widget = GTK_WIDGET (entry);
GtkTextDirection text_dir;
if (direction == PANGO_DIRECTION_LTR)
text_dir = GTK_TEXT_DIR_LTR;
else
text_dir = GTK_TEXT_DIR_RTL;
gtk_draw_insertion_cursor (widget, entry->text_area, NULL,
cursor_location,
is_primary, text_dir, draw_arrow);
}
static void
gtk_entry_get_pixel_ranges (GtkEntry *entry,
gint **ranges,
gint *n_ranges)
{
gint start_char, end_char;
if (gtk_editable_get_selection_bounds (GTK_EDITABLE (entry), &start_char, &end_char))
{
//PangoLayout *layout = gtk_entry_ensure_layout (entry, TRUE);
PangoLayout *layout = gtk_entry_get_layout (entry);
PangoLayoutLine *line = pango_layout_get_lines (layout)->data;
const char *text = pango_layout_get_text (layout);
gint start_index = g_utf8_offset_to_pointer (text, start_char) - text;
gint end_index = g_utf8_offset_to_pointer (text, end_char) - text;
gint real_n_ranges, i;
pango_layout_line_get_x_ranges (line, start_index, end_index, ranges, &real_n_ranges);
if (ranges)
{
gint *r = *ranges;
for (i = 0; i < real_n_ranges; ++i)
{
r[2 * i + 1] = (r[2 * i + 1] - r[2 * i]) / PANGO_SCALE;
r[2 * i] = r[2 * i] / PANGO_SCALE;
}
}
if (n_ranges)
*n_ranges = real_n_ranges;
}
else
{
if (n_ranges)
*n_ranges = 0;
if (ranges)
*ranges = NULL;
}
}
static void
gtk_entry_get_cursor_locations (GtkEntry *entry,
CursorType type,
gint *strong_x,
gint *weak_x)
{
if (!entry->visible && !entry->invisible_char)
{
if (strong_x)
*strong_x = 0;
if (weak_x)
*weak_x = 0;
}
else
{
//PangoLayout *layout = gtk_entry_ensure_layout (entry, TRUE);
PangoLayout *layout = gtk_entry_get_layout (entry);
const gchar *text = pango_layout_get_text (layout);
PangoRectangle strong_pos, weak_pos;
gint index;
if (type == CURSOR_STANDARD)
{
index = g_utf8_offset_to_pointer (text, entry->current_pos + entry->preedit_cursor) - text;
}
else /* type == CURSOR_DND */
{
index = g_utf8_offset_to_pointer (text, entry->dnd_position) - text;
if (entry->dnd_position > entry->current_pos)
{
if (entry->visible)
index += entry->preedit_length;
else
{
gint preedit_len_chars = g_utf8_strlen (text, -1) - entry->text_length;
index += preedit_len_chars * g_unichar_to_utf8 (entry->invisible_char, NULL);
}
}
}
pango_layout_get_cursor_pos (layout, index, &strong_pos, &weak_pos);
if (strong_x)
*strong_x = strong_pos.x / PANGO_SCALE;
if (weak_x)
*weak_x = weak_pos.x / PANGO_SCALE;
}
}
static void
gtk_entry_draw_cursor (GtkEntry *entry,
CursorType type)
{
GdkKeymap *keymap = gdk_keymap_get_for_display (gtk_widget_get_display (GTK_WIDGET (entry)));
PangoDirection keymap_direction = gdk_keymap_get_direction (keymap);
if (GTK_WIDGET_DRAWABLE (entry))
{
GtkWidget *widget = GTK_WIDGET (entry);
GdkRectangle cursor_location;
gboolean split_cursor;
GtkBorder inner_border;
gint xoffset;
gint strong_x, weak_x;
gint text_area_height;
PangoDirection dir1 = PANGO_DIRECTION_NEUTRAL;
PangoDirection dir2 = PANGO_DIRECTION_NEUTRAL;
gint x1 = 0;
gint x2 = 0;
_gtk_entry_effective_inner_border (entry, &inner_border);
xoffset = inner_border.left - entry->scroll_offset;
gdk_drawable_get_size (entry->text_area, NULL, &text_area_height);
gtk_entry_get_cursor_locations (entry, type, &strong_x, &weak_x);
g_object_get (gtk_widget_get_settings (widget),
"gtk-split-cursor", &split_cursor,
NULL);
dir1 = entry->resolved_dir;
if (split_cursor)
{
x1 = strong_x;
if (weak_x != strong_x)
{
dir2 = (entry->resolved_dir == PANGO_DIRECTION_LTR) ? PANGO_DIRECTION_RTL : PANGO_DIRECTION_LTR;
x2 = weak_x;
}
}
else
{
if (keymap_direction == entry->resolved_dir)
x1 = strong_x;
else
x1 = weak_x;
}
cursor_location.x = xoffset + x1;
cursor_location.y = inner_border.top;
cursor_location.width = 0;
cursor_location.height = text_area_height - inner_border.top - inner_border.bottom;
draw_insertion_cursor (entry,
&cursor_location, TRUE, dir1,
dir2 != PANGO_DIRECTION_NEUTRAL);
if (dir2 != PANGO_DIRECTION_NEUTRAL)
{
cursor_location.x = xoffset + x2;
draw_insertion_cursor (entry,
&cursor_location, FALSE, dir2,
TRUE);
}
}
}
static void
get_layout_position (GtkEntry *entry,
gint *x,
gint *y)
{
PangoLayout *layout;
PangoRectangle logical_rect;
gint area_width, area_height;
GtkBorder inner_border;
gint y_pos;
PangoLayoutLine *line;
// layout = gtk_entry_ensure_layout (entry, TRUE);
layout = gtk_entry_get_layout(entry);
get_text_area_size (entry, NULL, NULL, &area_width, &area_height);
_gtk_entry_effective_inner_border (entry, &inner_border);
area_height = PANGO_SCALE * (area_height - inner_border.top - inner_border.bottom);
line = pango_layout_get_lines (layout)->data;
pango_layout_line_get_extents (line, NULL, &logical_rect);
/* Align primarily for locale's ascent/descent */
y_pos = ((area_height - entry->ascent - entry->descent) / 2 +
entry->ascent + logical_rect.y);
/* Now see if we need to adjust to fit in actual drawn string */
if (logical_rect.height > area_height)
y_pos = (area_height - logical_rect.height) / 2;
else if (y_pos < 0)
y_pos = 0;
else if (y_pos + logical_rect.height > area_height)
y_pos = area_height - logical_rect.height;
y_pos = inner_border.top + y_pos / PANGO_SCALE;
if (x)
*x = inner_border.left - entry->scroll_offset;
if (y)
*y = y_pos;
}
static void
_gtk_entry_effective_inner_border (GtkEntry *entry,
GtkBorder *border)
{
GtkBorder *tmp_border;
tmp_border = g_object_get_qdata (G_OBJECT (entry), quark_inner_border);
if (tmp_border)
{
*border = *tmp_border;
return;
}
gtk_widget_style_get (GTK_WIDGET (entry), "inner-border", &tmp_border, NULL);
if (tmp_border)
{
*border = *tmp_border;
gtk_border_free (tmp_border);
return;
}
*border = default_inner_border;
}
static void
gtk_entry_draw_text (GtkEntry *entry)
{
GtkWidget *widget;
if (!entry->visible && entry->invisible_char == 0)
return;
if (GTK_WIDGET_DRAWABLE (entry))
{
//PangoLayout *layout = gtk_entry_ensure_layout (entry, TRUE);
PangoLayout *layout = gtk_entry_get_layout (entry);
cairo_t *cr;
gint x, y;
gint start_pos, end_pos;
widget = GTK_WIDGET (entry);
get_layout_position (entry, &x, &y);
cr = gdk_cairo_create (entry->text_area);
cairo_move_to (cr, x, y);
gdk_cairo_set_source_color (cr, &widget->style->text [widget->state]);
pango_cairo_show_layout (cr, layout);
if (gtk_editable_get_selection_bounds (GTK_EDITABLE (entry), &start_pos, &end_pos))
{
gint *ranges;
gint n_ranges, i;
PangoRectangle logical_rect;
GdkColor *selection_color, *text_color;
GtkBorder inner_border;
pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
gtk_entry_get_pixel_ranges (entry, &ranges, &n_ranges);
if (GTK_WIDGET_HAS_FOCUS (entry))
{
selection_color = &widget->style->base [GTK_STATE_SELECTED];
text_color = &widget->style->text [GTK_STATE_SELECTED];
}
else
{
selection_color = &widget->style->base [GTK_STATE_ACTIVE];
text_color = &widget->style->text [GTK_STATE_ACTIVE];
}
_gtk_entry_effective_inner_border (entry, &inner_border);
for (i = 0; i < n_ranges; ++i)
cairo_rectangle (cr,
inner_border.left - entry->scroll_offset + ranges[2 * i],
y,
ranges[2 * i + 1],
logical_rect.height);
cairo_clip (cr);
gdk_cairo_set_source_color (cr, selection_color);
cairo_paint (cr);
cairo_move_to (cr, x, y);
gdk_cairo_set_source_color (cr, text_color);
pango_cairo_show_layout (cr, layout);
g_free (ranges);
}
cairo_destroy (cr);
}
}
static void
sugar_address_entry_get_borders (GtkEntry *entry,
gint *xborder,
gint *yborder)
{
GtkWidget *widget = GTK_WIDGET (entry);
gint focus_width;
gboolean interior_focus;
gtk_widget_style_get (widget,
"interior-focus", &interior_focus,
"focus-line-width", &focus_width,
NULL);
if (entry->has_frame)
{
*xborder = widget->style->xthickness;
*yborder = widget->style->ythickness;
}
else
{
*xborder = 0;
*yborder = 0;
}
if (!interior_focus)
{
*xborder += focus_width;
*yborder += focus_width;
}
}
static void
get_text_area_size (GtkEntry *entry,
gint *x,
gint *y,
gint *width,
gint *height)
{
gint xborder, yborder;
GtkRequisition requisition;
GtkWidget *widget = GTK_WIDGET (entry);
gtk_widget_get_child_requisition (widget, &requisition);
sugar_address_entry_get_borders (entry, &xborder, &yborder);
if (x)
*x = xborder;
if (y)
*y = yborder;
if (width)
*width = GTK_WIDGET (entry)->allocation.width - xborder * 2;
if (height)
*height = requisition.height - yborder * 2;
}
static gint
sugar_address_entry_expose(GtkWidget *widget,
GdkEventExpose *event)
{
GtkEntry *entry = GTK_ENTRY (widget);
SugarAddressEntry *address_entry = SUGAR_ADDRESS_ENTRY(widget);
cairo_t *cr;
if (entry->text_area == event->window) {
gint area_width, area_height;
get_text_area_size (entry, NULL, NULL, &area_width, &area_height);
gtk_paint_flat_box (widget->style, entry->text_area,
GTK_WIDGET_STATE(widget), GTK_SHADOW_NONE,
NULL, widget, "entry_bg",
0, 0, area_width, area_height);
if (address_entry->progress != 0.0 && address_entry->progress != 1.0 &&
!GTK_WIDGET_HAS_FOCUS(entry)) {
int bar_width = area_width * address_entry->progress;
float radius = area_height / 2;
cr = gdk_cairo_create(entry->text_area);
cairo_set_source_rgb(cr, 0xA6 / 255.0, 0xA6 / 255.0, 0xA6 / 255.0);
cairo_move_to (cr, radius, 0);
cairo_arc (cr, bar_width - radius, radius, radius, M_PI * 1.5, M_PI * 2);
cairo_arc (cr, bar_width - radius, area_height - radius, radius, 0, M_PI * 0.5);
cairo_arc (cr, radius, area_height - radius, radius, M_PI * 0.5, M_PI);
cairo_arc (cr, radius, radius, radius, M_PI, M_PI * 1.5);
cairo_fill(cr);
cairo_destroy (cr);
}
if ((entry->visible || entry->invisible_char != 0) &&
GTK_WIDGET_HAS_FOCUS (widget) &&
entry->selection_bound == entry->current_pos && entry->cursor_visible)
gtk_entry_draw_cursor (GTK_ENTRY (widget), CURSOR_STANDARD);
if (entry->dnd_position != -1)
gtk_entry_draw_cursor (GTK_ENTRY (widget), CURSOR_DND);
gtk_entry_draw_text (GTK_ENTRY (widget));
} else {
GtkWidgetClass *parent_class;
parent_class = GTK_WIDGET_CLASS(sugar_address_entry_parent_class);
parent_class->expose_event(widget, event);
}
return FALSE;
}
static void
entry_changed_cb(SugarAddressEntry *entry)
{
if (entry->address) {
g_free (entry->address);
}
entry->address = gtk_editable_get_chars(GTK_EDITABLE(entry), 0, -1);
}
static void
update_entry_text(SugarAddressEntry *address_entry,
gboolean has_focus)
{
g_signal_handlers_block_by_func(address_entry, entry_changed_cb, NULL);
if (has_focus || address_entry->title == NULL) {
gtk_entry_set_text(GTK_ENTRY(address_entry),
address_entry->address);
} else {
gtk_entry_set_text(GTK_ENTRY(address_entry),
address_entry->title);
}
g_signal_handlers_unblock_by_func(address_entry, entry_changed_cb, NULL);
}
static void
sugar_address_entry_set_address(SugarAddressEntry *address_entry,
const char *address)
{
g_free(address_entry->address);
address_entry->address = g_strdup(address);
update_entry_text(address_entry,
gtk_widget_is_focus(GTK_WIDGET(address_entry)));
}
static void
sugar_address_entry_set_title(SugarAddressEntry *address_entry,
const char *title)
{
g_free(address_entry->title);
address_entry->title = g_strdup(title);
update_entry_text(address_entry,
gtk_widget_is_focus(GTK_WIDGET(address_entry)));
}
static void
sugar_address_entry_set_property(GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
SugarAddressEntry *address_entry = SUGAR_ADDRESS_ENTRY(object);
GtkEntry *entry = GTK_ENTRY(object);
switch (prop_id) {
case PROP_PROGRESS:
address_entry->progress = g_value_get_double(value);
if (GTK_WIDGET_REALIZED(entry))
gdk_window_invalidate_rect(entry->text_area, NULL, FALSE);
break;
case PROP_ADDRESS:
sugar_address_entry_set_address(address_entry,
g_value_get_string(value));
break;
case PROP_TITLE:
sugar_address_entry_set_title(address_entry,
g_value_get_string(value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
sugar_address_entry_get_property(GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
SugarAddressEntry *entry = SUGAR_ADDRESS_ENTRY(object);
switch (prop_id) {
case PROP_PROGRESS:
g_value_set_double(value, entry->progress);
break;
case PROP_TITLE:
g_value_set_string(value, entry->title);
break;
case PROP_ADDRESS:
g_value_set_string(value, entry->address);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
sugar_address_entry_class_init(SugarAddressEntryClass *klass)
{
GtkWidgetClass *widget_class = (GtkWidgetClass*)klass;
GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
widget_class->expose_event = sugar_address_entry_expose;
gobject_class->set_property = sugar_address_entry_set_property;
gobject_class->get_property = sugar_address_entry_get_property;
quark_inner_border = g_quark_from_static_string ("gtk-entry-inner-border");
g_object_class_install_property (gobject_class, PROP_PROGRESS,
g_param_spec_double("progress",
"Progress",
"Progress",
0.0, 1.0, 0.0,
G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, PROP_TITLE,
g_param_spec_string("title",
"Title",
"Title",
"",
G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, PROP_ADDRESS,
g_param_spec_string("address",
"Address",
"Address",
"",
G_PARAM_READWRITE));
}
static gboolean
button_press_event_cb (GtkWidget *widget, GdkEventButton *event)
{
if (event->button == 1 && event->type == GDK_2BUTTON_PRESS) {
gtk_editable_select_region(GTK_EDITABLE(widget), 0, -1);
gtk_widget_grab_focus(widget);
return TRUE;
}
return FALSE;
}
static gboolean
focus_in_event_cb(GtkWidget *widget, GdkEventFocus *event)
{
update_entry_text(SUGAR_ADDRESS_ENTRY(widget), TRUE);
return FALSE;
}
static gboolean
focus_out_event_cb(GtkWidget *widget, GdkEventFocus *event)
{
update_entry_text(SUGAR_ADDRESS_ENTRY(widget), FALSE);
return FALSE;
}
static void
popup_unmap_cb(GtkWidget *popup, SugarAddressEntry *entry)
{
g_signal_handlers_unblock_by_func(entry, focus_out_event_cb, NULL);
}
static void
populate_popup_cb(SugarAddressEntry *entry, GtkWidget *menu)
{
g_signal_handlers_block_by_func(entry, focus_out_event_cb, NULL);
g_signal_connect(menu, "unmap",
G_CALLBACK(popup_unmap_cb), entry);
}
static void
sugar_address_entry_init(SugarAddressEntry *entry)
{
entry->progress = 0.0;
entry->address = NULL;
entry->title = g_strdup("");
g_signal_connect(entry, "focus-in-event",
G_CALLBACK(focus_in_event_cb), NULL);
g_signal_connect(entry, "focus-out-event",
G_CALLBACK(focus_out_event_cb), NULL);
g_signal_connect(entry, "changed",
G_CALLBACK(entry_changed_cb), NULL);
g_signal_connect(entry, "button-press-event",
G_CALLBACK(button_press_event_cb), NULL);
g_signal_connect(entry, "populate-popup",
G_CALLBACK(populate_popup_cb), NULL);
}
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