HGKeeper

/* pidgin

* Pidgin is the legal property of its developers, whose names are too numerous

* to list here. Please refer to the COPYRIGHT file distributed with this

* source distribution.

* This program is free software; you can redistribute it and/or modify

* it under the terms of the GNU General Public License as published by

* the Free Software Foundation; either version 2 of the License, or

* (at your option) any later version.

* This program 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 General Public License for more details.

* You should have received a copy of the GNU General Public License

* along with this program; if not, write to the Free Software

* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA

#include <glib/gi18n-lib.h>

#include <purple.h>

#include "pidgintooltip.h"

static gboolean enable_tooltips;

static int tooltip_delay = -1;

struct

{

GtkWidget *widget;

int timeout;

GdkRectangle tip_rect;

GtkWidget *tipwindow;

PidginTooltipPaint paint_tooltip;

} pidgin_tooltip;

typedef struct

{

GtkWidget *widget;

gpointer userdata;

PidginTooltipPaint paint_tooltip;

union {

struct {

PidginTooltipCreateForTree create_tooltip;

GtkTreePath *path;

} treeview;

struct {

PidginTooltipCreate create_tooltip;

} widget;

} common;

} PidginTooltipData;

static void

initialize_tooltip_delay()

{

GtkSettings *settings;

if (tooltip_delay != -1)

return;

settings = gtk_settings_get_default();

g_object_get(settings, "gtk-enable-tooltips", &enable_tooltips, NULL);

g_object_get(settings, "gtk-tooltip-timeout", &tooltip_delay, NULL);

}

static void

destroy_tooltip_data(PidginTooltipData *data)

{

if (data->common.treeview.path)

gtk_tree_path_free(data->common.treeview.path);

pidgin_tooltip_destroy();

g_free(data);

}

void pidgin_tooltip_destroy()

{

if (pidgin_tooltip.timeout > 0) {

g_source_remove(pidgin_tooltip.timeout);

pidgin_tooltip.timeout = 0;

}

if (pidgin_tooltip.tipwindow) {

gtk_widget_destroy(pidgin_tooltip.tipwindow);

pidgin_tooltip.tipwindow = NULL;

}

static gboolean

pidgin_tooltip_draw_cb(GtkWidget *widget, cairo_t *cr, gpointer data)

{

GtkAllocation allocation;

gtk_widget_get_allocation(widget, &allocation);

if (pidgin_tooltip.paint_tooltip) {

GtkStyleContext *context = gtk_widget_get_style_context(widget);

gtk_style_context_add_class(context, GTK_STYLE_CLASS_TOOLTIP);

gtk_render_background(context, cr,

0, 0, allocation.width, allocation.height);

pidgin_tooltip.paint_tooltip(widget, cr, data);

}

return FALSE;

}

static GtkWidget*

setup_tooltip_window(void)

{

const char *name;

GtkWidget *tipwindow;

tipwindow = gtk_window_new(GTK_WINDOW_POPUP);

gtk_window_set_transient_for(GTK_WINDOW(tipwindow),

GTK_WINDOW(pidgin_tooltip.widget));

name = gtk_window_get_title(GTK_WINDOW(pidgin_tooltip.widget));

gtk_window_set_type_hint(GTK_WINDOW(tipwindow), GDK_WINDOW_TYPE_HINT_TOOLTIP);

gtk_widget_set_app_paintable(tipwindow, TRUE);

gtk_window_set_title(GTK_WINDOW(tipwindow), name ? name : _("Pidgin Tooltip"));

gtk_window_set_resizable(GTK_WINDOW(tipwindow), FALSE);

gtk_widget_set_name(tipwindow, "gtk-tooltips");

gtk_widget_ensure_style(tipwindow);

gtk_widget_realize(tipwindow);

return tipwindow;

}

static void

setup_tooltip_window_position(gpointer data, int w, int h)

{

int scr_w, scr_h, x, y, dy;

int preserved_x, preserved_y;

GdkDisplay *display = NULL;

GdkSeat *seat = NULL;

GdkMonitor *monitor = NULL;

GdkDevice *dev = NULL;

GdkRectangle mon_size;

GtkWidget *tipwindow = pidgin_tooltip.tipwindow;

display = gdk_display_get_default();

seat = gdk_display_get_default_seat(display);

dev = gdk_seat_get_pointer(seat);

gdk_device_get_position(dev, NULL, &x, &y);

monitor = gdk_display_get_monitor_at_point(display, x, y);

gdk_monitor_get_geometry(monitor, &mon_size);

scr_w = mon_size.width + mon_size.x;

scr_h = mon_size.height + mon_size.y;

dy = gdk_display_get_default_cursor_size(gdk_display_get_default()) / 2;

if (w > mon_size.width)

w = mon_size.width - 10;

if (h > mon_size.height)

h = mon_size.height - 10;

preserved_x = x;

preserved_y = y;

x -= ((w >> 1) + 4);

if ((y + h + 4) > scr_h)

y = y - h - dy - 5;

else

y = y + dy + 6;

if (y < mon_size.y)

y = mon_size.y;

if (y != mon_size.y) {

if ((x + w) > scr_w)

x -= (x + w + 5) - scr_w;

else if (x < mon_size.x)

x = mon_size.x;

} else {

x -= (w / 2 + 10);

if (x < mon_size.x)

x = mon_size.x;

}

/* If the mouse covered by the tipwindow, move the tipwindow

* to the righ side of the it */

if ((preserved_x >= x) && (preserved_x <= (x + w))

&& (preserved_y >= y) && (preserved_y <= (y + h)))

x = preserved_x + dy;

gtk_widget_set_size_request(tipwindow, w, h);

gtk_window_move(GTK_WINDOW(tipwindow), x, y);

gtk_widget_show(tipwindow);

g_signal_connect(G_OBJECT(tipwindow), "draw",

G_CALLBACK(pidgin_tooltip_draw_cb), data);

/* Hide the tooltip when the widget is destroyed */

g_signal_connect_object(G_OBJECT(pidgin_tooltip.widget),

"destroy", G_CALLBACK(pidgin_tooltip_destroy),

G_OBJECT(tipwindow), 0);

}

void pidgin_tooltip_show(GtkWidget *widget, gpointer userdata,

PidginTooltipCreate create_tooltip, PidginTooltipPaint paint_tooltip)

{

GtkWidget *tipwindow;

int w, h;

pidgin_tooltip_destroy();

pidgin_tooltip.widget = gtk_widget_get_toplevel(widget);

pidgin_tooltip.tipwindow = tipwindow = setup_tooltip_window();

pidgin_tooltip.paint_tooltip = paint_tooltip;

if (!create_tooltip(tipwindow, userdata, &w, &h)) {

pidgin_tooltip_destroy();

return;

}

setup_tooltip_window_position(userdata, w, h);

}

static void

reset_data_treepath(PidginTooltipData *data)

{

gtk_tree_path_free(data->common.treeview.path);

data->common.treeview.path = NULL;

}

static void

pidgin_tooltip_draw(PidginTooltipData *data)

{

GtkWidget *tipwindow;

int w, h;

pidgin_tooltip_destroy();

pidgin_tooltip.widget = gtk_widget_get_toplevel(data->widget);

pidgin_tooltip.tipwindow = tipwindow = setup_tooltip_window();

pidgin_tooltip.paint_tooltip = data->paint_tooltip;

if (!data->common.widget.create_tooltip(tipwindow, data->userdata, &w, &h)) {

if (tipwindow == pidgin_tooltip.tipwindow)

pidgin_tooltip_destroy();

return;

}

setup_tooltip_window_position(data->userdata, w, h);

}

static void

pidgin_tooltip_draw_tree(PidginTooltipData *data)

{

GtkWidget *tipwindow;

GtkTreePath *path = NULL;

int w, h;

if (!gtk_tree_view_get_path_at_pos(GTK_TREE_VIEW(data->widget),

pidgin_tooltip.tip_rect.x,

pidgin_tooltip.tip_rect.y + (pidgin_tooltip.tip_rect.height/2),

&path, NULL, NULL, NULL)) {

pidgin_tooltip_destroy();

return;

}

if (data->common.treeview.path) {

if (gtk_tree_path_compare(data->common.treeview.path, path) == 0) {

gtk_tree_path_free(path);

return;

}

gtk_tree_path_free(data->common.treeview.path);

data->common.treeview.path = NULL;

}

pidgin_tooltip_destroy();

pidgin_tooltip.widget = gtk_widget_get_toplevel(data->widget);

pidgin_tooltip.tipwindow = tipwindow = setup_tooltip_window();

pidgin_tooltip.paint_tooltip = data->paint_tooltip;

if (!data->common.treeview.create_tooltip(tipwindow, path, data->userdata, &w, &h)) {

if (tipwindow == pidgin_tooltip.tipwindow)

pidgin_tooltip_destroy();

gtk_tree_path_free(path);

return;

}

setup_tooltip_window_position(data->userdata, w, h);

data->common.treeview.path = path;

g_signal_connect_swapped(G_OBJECT(pidgin_tooltip.tipwindow), "destroy",

G_CALLBACK(reset_data_treepath), data);

}

static gboolean

pidgin_tooltip_timeout(gpointer data)

{

PidginTooltipData *tdata = data;

pidgin_tooltip.timeout = 0;

if (GTK_IS_TREE_VIEW(tdata->widget))

pidgin_tooltip_draw_tree(data);

else

pidgin_tooltip_draw(data);

return FALSE;

}

static gboolean

row_motion_cb(GtkWidget *tv, GdkEventMotion *event, gpointer userdata)

{

GtkTreePath *path;

if (event->window != gtk_tree_view_get_bin_window(GTK_TREE_VIEW(tv)))

return FALSE; /* The cursor is probably on the TreeView's header. */

initialize_tooltip_delay();

if (!enable_tooltips)

return FALSE;

if (pidgin_tooltip.timeout) {

if ((event->y >= pidgin_tooltip.tip_rect.y) && ((event->y - pidgin_tooltip.tip_rect.height) <= pidgin_tooltip.tip_rect.y))

return FALSE;

/* We've left the cell. Remove the timeout and create a new one below */

pidgin_tooltip_destroy();

}

gtk_tree_view_get_path_at_pos(GTK_TREE_VIEW(tv), event->x, event->y, &path, NULL, NULL, NULL);

if (path == NULL) {

pidgin_tooltip_destroy();

return FALSE;

}

gtk_tree_view_get_cell_area(GTK_TREE_VIEW(tv), path, NULL, &pidgin_tooltip.tip_rect);

gtk_tree_path_free(path);

pidgin_tooltip.timeout = g_timeout_add(tooltip_delay, (GSourceFunc)pidgin_tooltip_timeout, userdata);

return FALSE;

}

static gboolean

widget_leave_cb(GtkWidget *tv, GdkEvent *event, gpointer userdata)

{

pidgin_tooltip_destroy();

return FALSE;

}

gboolean pidgin_tooltip_setup_for_treeview(GtkWidget *tree, gpointer userdata,

PidginTooltipCreateForTree create_tooltip, PidginTooltipPaint paint_tooltip)

{

PidginTooltipData *tdata = g_new0(PidginTooltipData, 1);

tdata->widget = tree;

tdata->userdata = userdata;

tdata->common.treeview.create_tooltip = create_tooltip;

tdata->paint_tooltip = paint_tooltip;

g_signal_connect(G_OBJECT(tree), "motion-notify-event", G_CALLBACK(row_motion_cb), tdata);

g_signal_connect(G_OBJECT(tree), "leave-notify-event", G_CALLBACK(widget_leave_cb), NULL);

g_signal_connect(G_OBJECT(tree), "scroll-event", G_CALLBACK(widget_leave_cb), NULL);

g_signal_connect_swapped(G_OBJECT(tree), "destroy", G_CALLBACK(destroy_tooltip_data), tdata);

return TRUE;

}

static gboolean

widget_motion_cb(GtkWidget *widget, GdkEvent *event, gpointer data)

{

initialize_tooltip_delay();

pidgin_tooltip_destroy();

if (!enable_tooltips)

return FALSE;

pidgin_tooltip.timeout = g_timeout_add(tooltip_delay, (GSourceFunc)pidgin_tooltip_timeout, data);

return FALSE;

}

gboolean pidgin_tooltip_setup_for_widget(GtkWidget *widget, gpointer userdata,

PidginTooltipCreate create_tooltip, PidginTooltipPaint paint_tooltip)

{

PidginTooltipData *wdata = g_new0(PidginTooltipData, 1);

wdata->widget = widget;

wdata->userdata = userdata;

wdata->common.widget.create_tooltip = create_tooltip;

wdata->paint_tooltip = paint_tooltip;

g_signal_connect(G_OBJECT(widget), "motion-notify-event", G_CALLBACK(widget_motion_cb), wdata);

g_signal_connect(G_OBJECT(widget), "leave-notify-event", G_CALLBACK(widget_leave_cb), NULL);

g_signal_connect(G_OBJECT(widget), "scroll-event", G_CALLBACK(widget_leave_cb), NULL);

g_signal_connect_swapped(G_OBJECT(widget), "destroy", G_CALLBACK(destroy_tooltip_data), wdata);

return TRUE;

}

pidgin/pidgin