pidgin/pidgin

Make PurplePluginProtocolInfo definitions consistent
release-2.x.y
2020-05-20, David Woodhouse
159344ba2a49
Make PurplePluginProtocolInfo definitions consistent

Since we can't use C99 structure initialisers, we have to manually add
new NULL fields to all protocols whenever we extend the structure.

Make it slightly easier to script that, by making the current last
field (get_cb_alias) consistent in all cases. In particular, there's
no reason *not* to have the trailing comma, as most already do.

Now I can add a new field to the PRPL by doing something like this...

PROTOFILES=`grep -rl '[A-Za-z_][A-Za-z0-9_]*,[[:space:]]*/\* get_cb_alias \*/' libpurple/protocols/ `
sed '/\/\* get_cb_alias \*\//{p;s/[A-Za-z_][A-Za-
/*
* 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 "internal.h"
#include "blist.h"
#include "debug.h"
#include "gtkwhiteboard.h"
#include "gtkutils.h"
/******************************************************************************
* Prototypes
*****************************************************************************/
static void pidgin_whiteboard_create(PurpleWhiteboard *wb);
static void pidgin_whiteboard_destroy(PurpleWhiteboard *wb);
static gboolean whiteboard_close_cb(GtkWidget *widget, GdkEvent *event, PidginWhiteboard *gtkwb);
/*static void pidginwhiteboard_button_start_press(GtkButton *button, gpointer data); */
static gboolean pidgin_whiteboard_configure_event(GtkWidget *widget, GdkEventConfigure *event, gpointer data);
static gboolean pidgin_whiteboard_expose_event(GtkWidget *widget, GdkEventExpose *event, gpointer data);
static gboolean pidgin_whiteboard_brush_down(GtkWidget *widget, GdkEventButton *event, gpointer data);
static gboolean pidgin_whiteboard_brush_motion(GtkWidget *widget, GdkEventMotion *event, gpointer data);
static gboolean pidgin_whiteboard_brush_up(GtkWidget *widget, GdkEventButton *event, gpointer data);
static void pidgin_whiteboard_draw_brush_point(PurpleWhiteboard *wb,
int x, int y, int color, int size);
static void pidgin_whiteboard_draw_brush_line(PurpleWhiteboard *wb, int x0, int y0,
int x1, int y1, int color, int size);
static void pidgin_whiteboard_set_dimensions(PurpleWhiteboard *wb, int width, int height);
static void pidgin_whiteboard_set_brush(PurpleWhiteboard *wb, int size, int color);
static void pidgin_whiteboard_clear(PurpleWhiteboard *wb);
static void pidgin_whiteboard_button_clear_press(GtkWidget *widget, gpointer data);
static void pidgin_whiteboard_button_save_press(GtkWidget *widget, gpointer data);
static void pidgin_whiteboard_set_canvas_as_icon(PidginWhiteboard *gtkwb);
static void pidgin_whiteboard_rgb24_to_rgb48(int color_rgb, GdkColor *color);
static void color_select_dialog(GtkWidget *widget, PidginWhiteboard *gtkwb);
/******************************************************************************
* Globals
*****************************************************************************/
/*
GList *buttonList = NULL;
GdkColor DefaultColor[PALETTE_NUM_COLORS];
*/
static int LastX; /* Tracks last position of the mouse when drawing */
static int LastY;
static int MotionCount; /* Tracks how many brush motions made */
static int BrushState = BRUSH_STATE_UP;
static PurpleWhiteboardUiOps ui_ops =
{
pidgin_whiteboard_create,
pidgin_whiteboard_destroy,
pidgin_whiteboard_set_dimensions,
pidgin_whiteboard_set_brush,
pidgin_whiteboard_draw_brush_point,
pidgin_whiteboard_draw_brush_line,
pidgin_whiteboard_clear,
NULL,
NULL,
NULL,
NULL
};
/******************************************************************************
* API
*****************************************************************************/
PurpleWhiteboardUiOps *pidgin_whiteboard_get_ui_ops(void)
{
return &ui_ops;
}
static void pidgin_whiteboard_create(PurpleWhiteboard *wb)
{
PurpleBuddy *buddy;
GtkWidget *window;
GtkWidget *drawing_area;
GtkWidget *vbox_controls;
GtkWidget *hbox_canvas_and_controls;
/*
--------------------------
|[][][][palette[][][][][]|
|------------------------|
| canvas | con |
| | trol|
| | s |
| | |
| | |
--------------------------
*/
GtkWidget *clear_button;
GtkWidget *save_button;
GtkWidget *color_button;
PidginWhiteboard *gtkwb = g_new0(PidginWhiteboard, 1);
gtkwb->wb = wb;
wb->ui_data = gtkwb;
/* Get dimensions (default?) for the whiteboard canvas */
if (!purple_whiteboard_get_dimensions(wb, &gtkwb->width, &gtkwb->height))
{
/* Give some initial board-size */
gtkwb->width = 300;
gtkwb->height = 250;
}
if (!purple_whiteboard_get_brush(wb, &gtkwb->brush_size, &gtkwb->brush_color))
{
/* Give some initial brush-info */
gtkwb->brush_size = 2;
gtkwb->brush_color = 0xff0000;
}
/* Try and set window title as the name of the buddy, else just use their
* username
*/
buddy = purple_find_buddy(wb->account, wb->who);
window = pidgin_create_window(buddy != NULL ? purple_buddy_get_contact_alias(buddy) : wb->who, 0, NULL, FALSE);
gtkwb->window = window;
gtk_widget_set_name(window, wb->who);
g_signal_connect(G_OBJECT(window), "delete_event",
G_CALLBACK(whiteboard_close_cb), gtkwb);
#if 0
int i;
GtkWidget *hbox_palette;
GtkWidget *vbox_palette_above_canvas_and_controls;
GtkWidget *palette_color_box[PALETTE_NUM_COLORS];
/* Create vertical box to place palette above the canvas and controls */
vbox_palette_above_canvas_and_controls = gtk_vbox_new(FALSE, 0);
gtk_container_add(GTK_CONTAINER(window), vbox_palette_above_canvas_and_controls);
gtk_widget_show(vbox_palette_above_canvas_and_controls);
/* Create horizontal box for the palette and all its entries */
hbox_palette = gtk_hbox_new(FALSE, 0);
gtk_box_pack_start(GTK_BOX(vbox_palette_above_canvas_and_controls),
hbox_palette, FALSE, FALSE, PIDGIN_HIG_BORDER);
gtk_widget_show(hbox_palette);
/* Create horizontal box to seperate the canvas from the controls */
hbox_canvas_and_controls = gtk_hbox_new(FALSE, 0);
gtk_box_pack_start(GTK_BOX(vbox_palette_above_canvas_and_controls),
hbox_canvas_and_controls, FALSE, FALSE, PIDGIN_HIG_BORDER);
gtk_widget_show(hbox_canvas_and_controls);
for(i = 0; i < PALETTE_NUM_COLORS; i++)
{
palette_color_box[i] = gtk_image_new_from_pixbuf(NULL);
gtk_widget_set_size_request(palette_color_box[i], gtkwb->width / PALETTE_NUM_COLORS ,32);
gtk_container_add(GTK_CONTAINER(hbox_palette), palette_color_box[i]);
gtk_widget_show(palette_color_box[i]);
}
#endif
hbox_canvas_and_controls = gtk_hbox_new(FALSE, 0);
gtk_widget_show(hbox_canvas_and_controls);
gtk_container_add(GTK_CONTAINER(window), hbox_canvas_and_controls);
gtk_container_set_border_width(GTK_CONTAINER(window), PIDGIN_HIG_BORDER);
/* Create the drawing area */
drawing_area = gtk_drawing_area_new();
gtkwb->drawing_area = drawing_area;
gtk_widget_set_size_request(GTK_WIDGET(drawing_area), gtkwb->width, gtkwb->height);
gtk_box_pack_start(GTK_BOX(hbox_canvas_and_controls), drawing_area, TRUE, TRUE, PIDGIN_HIG_BOX_SPACE);
gtk_widget_show(drawing_area);
/* Signals used to handle backing pixmap */
g_signal_connect(G_OBJECT(drawing_area), "expose_event",
G_CALLBACK(pidgin_whiteboard_expose_event), gtkwb);
g_signal_connect(G_OBJECT(drawing_area), "configure_event",
G_CALLBACK(pidgin_whiteboard_configure_event), gtkwb);
/* Event signals */
g_signal_connect(G_OBJECT(drawing_area), "button_press_event",
G_CALLBACK(pidgin_whiteboard_brush_down), gtkwb);
g_signal_connect(G_OBJECT(drawing_area), "motion_notify_event",
G_CALLBACK(pidgin_whiteboard_brush_motion), gtkwb);
g_signal_connect(G_OBJECT(drawing_area), "button_release_event",
G_CALLBACK(pidgin_whiteboard_brush_up), gtkwb);
gtk_widget_set_events(drawing_area,
GDK_EXPOSURE_MASK |
GDK_LEAVE_NOTIFY_MASK |
GDK_BUTTON_PRESS_MASK |
GDK_POINTER_MOTION_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_POINTER_MOTION_HINT_MASK);
/* Create vertical box to contain the controls */
vbox_controls = gtk_vbox_new(FALSE, 0);
gtk_box_pack_start(GTK_BOX(hbox_canvas_and_controls),
vbox_controls, FALSE, FALSE, PIDGIN_HIG_BOX_SPACE);
gtk_widget_show(vbox_controls);
/* Add a clear button */
clear_button = gtk_button_new_from_stock(GTK_STOCK_CLEAR);
gtk_box_pack_start(GTK_BOX(vbox_controls), clear_button, FALSE, FALSE, PIDGIN_HIG_BOX_SPACE);
gtk_widget_show(clear_button);
g_signal_connect(G_OBJECT(clear_button), "clicked",
G_CALLBACK(pidgin_whiteboard_button_clear_press), gtkwb);
/* Add a save button */
save_button = gtk_button_new_from_stock(GTK_STOCK_SAVE);
gtk_box_pack_start(GTK_BOX(vbox_controls), save_button, FALSE, FALSE, PIDGIN_HIG_BOX_SPACE);
gtk_widget_show(save_button);
g_signal_connect(G_OBJECT(save_button), "clicked",
G_CALLBACK(pidgin_whiteboard_button_save_press), gtkwb);
/* Add a color selector */
color_button = gtk_button_new_from_stock(GTK_STOCK_SELECT_COLOR);
gtk_box_pack_start(GTK_BOX(vbox_controls), color_button, FALSE, FALSE, PIDGIN_HIG_BOX_SPACE);
gtk_widget_show(color_button);
g_signal_connect(G_OBJECT(color_button), "clicked",
G_CALLBACK(color_select_dialog), gtkwb);
/* Make all this (window) visible */
gtk_widget_show(window);
pidgin_whiteboard_set_canvas_as_icon(gtkwb);
/* TODO Specific protocol/whiteboard assignment here? Needs a UI Op? */
/* Set default brush size and color */
/*
ds->brush_size = DOODLE_BRUSH_MEDIUM;
ds->brush_color = 0;
*/
}
static void pidgin_whiteboard_destroy(PurpleWhiteboard *wb)
{
PidginWhiteboard *gtkwb;
GtkWidget *colour_dialog;
g_return_if_fail(wb != NULL);
gtkwb = wb->ui_data;
g_return_if_fail(gtkwb != NULL);
/* TODO Ask if user wants to save picture before the session is closed */
/* Clear graphical memory */
if(gtkwb->pixmap)
{
cairo_t *cr = g_object_get_data(G_OBJECT(gtkwb->pixmap), "cairo-context");
if (cr)
cairo_destroy(cr);
g_object_unref(gtkwb->pixmap);
gtkwb->pixmap = NULL;
}
colour_dialog = g_object_get_data(G_OBJECT(gtkwb->window), "colour-dialog");
if (colour_dialog) {
gtk_widget_destroy(colour_dialog);
g_object_set_data(G_OBJECT(gtkwb->window), "colour-dialog", NULL);
}
if(gtkwb->window)
{
gtk_widget_destroy(gtkwb->window);
gtkwb->window = NULL;
}
g_free(gtkwb);
wb->ui_data = NULL;
}
static gboolean whiteboard_close_cb(GtkWidget *widget, GdkEvent *event, PidginWhiteboard *gtkwb)
{
PurpleWhiteboard *wb;
g_return_val_if_fail(gtkwb != NULL, FALSE);
wb = gtkwb->wb;
g_return_val_if_fail(wb != NULL, FALSE);
purple_whiteboard_destroy(wb);
return FALSE;
}
/*
* Whiteboard start button on conversation window (move this code to gtkconv?
* and use new prpl_info member?)
*/
#if 0
static void pidginwhiteboard_button_start_press(GtkButton *button, gpointer data)
{
PurpleConversation *conv = data;
PurpleAccount *account = purple_conversation_get_account(conv);
PurpleConnection *gc = purple_account_get_connection(account);
char *to = (char*)(purple_conversation_get_name(conv));
/* Only handle this if local client requested Doodle session (else local
* client would have sent one)
*/
PurpleWhiteboard *wb = purple_whiteboard_get(account, to);
/* Write a local message to this conversation showing that a request for a
* Doodle session has been made
*/
/* XXXX because otherwise gettext will see this string, even though it's
* in an #if 0 block. Remove the XXXX if you want to use this code.
* But, it really shouldn't be a Yahoo-specific string. ;) */
purple_conv_im_write(PURPLE_CONV_IM(conv), "", XXXX_("Sent Doodle request."),
PURPLE_MESSAGE_NICK | PURPLE_MESSAGE_RECV, time(NULL));
yahoo_doodle_command_send_request(gc, to);
yahoo_doodle_command_send_ready(gc, to);
/* Insert this 'session' in the list. At this point, it's only a requested
* session.
*/
wb = purple_whiteboard_create(account, to, DOODLE_STATE_REQUESTING);
}
#endif
static gboolean pidgin_whiteboard_configure_event(GtkWidget *widget, GdkEventConfigure *event, gpointer data)
{
PidginWhiteboard *gtkwb = (PidginWhiteboard*)data;
GdkPixmap *pixmap = gtkwb->pixmap;
cairo_t *cr;
if (pixmap) {
cr = g_object_get_data(G_OBJECT(pixmap), "cairo-context");
if (cr)
cairo_destroy(cr);
g_object_unref(pixmap);
}
pixmap = gdk_pixmap_new(widget->window,
widget->allocation.width,
widget->allocation.height,
-1);
gtkwb->pixmap = pixmap;
cr = gdk_cairo_create(GDK_DRAWABLE(pixmap));
g_object_set_data(G_OBJECT(pixmap), "cairo-context", cr);
gdk_cairo_set_source_color(cr, &widget->style->white);
cairo_rectangle(cr,
0, 0,
widget->allocation.width, widget->allocation.height);
cairo_fill(cr);
return TRUE;
}
static gboolean pidgin_whiteboard_expose_event(GtkWidget *widget, GdkEventExpose *event, gpointer data)
{
PidginWhiteboard *gtkwb = (PidginWhiteboard*)(data);
GdkPixmap *pixmap = gtkwb->pixmap;
cairo_t *cr;
cr = gdk_cairo_create(GDK_DRAWABLE(widget->window));
gdk_cairo_set_source_pixmap(cr, pixmap, 0, 0);
cairo_rectangle(cr,
event->area.x, event->area.y,
event->area.width, event->area.height);
cairo_fill(cr);
cairo_destroy(cr);
return FALSE;
}
static gboolean pidgin_whiteboard_brush_down(GtkWidget *widget, GdkEventButton *event, gpointer data)
{
PidginWhiteboard *gtkwb = (PidginWhiteboard*)data;
GdkPixmap *pixmap = gtkwb->pixmap;
PurpleWhiteboard *wb = gtkwb->wb;
GList *draw_list = wb->draw_list;
if(BrushState != BRUSH_STATE_UP)
{
/* Potential double-click DOWN to DOWN? */
BrushState = BRUSH_STATE_DOWN;
/* return FALSE; */
}
BrushState = BRUSH_STATE_DOWN;
if(event->button == 1 && pixmap != NULL)
{
/* Check if draw_list has contents; if so, clear it */
if(draw_list)
{
purple_whiteboard_draw_list_destroy(draw_list);
draw_list = NULL;
}
/* Set tracking variables */
LastX = event->x;
LastY = event->y;
MotionCount = 0;
draw_list = g_list_append(draw_list, GINT_TO_POINTER(LastX));
draw_list = g_list_append(draw_list, GINT_TO_POINTER(LastY));
pidgin_whiteboard_draw_brush_point(gtkwb->wb,
event->x, event->y,
gtkwb->brush_color, gtkwb->brush_size);
}
wb->draw_list = draw_list;
return TRUE;
}
static gboolean pidgin_whiteboard_brush_motion(GtkWidget *widget, GdkEventMotion *event, gpointer data)
{
int x;
int y;
int dx;
int dy;
GdkModifierType state;
PidginWhiteboard *gtkwb = (PidginWhiteboard*)data;
GdkPixmap *pixmap = gtkwb->pixmap;
PurpleWhiteboard *wb = gtkwb->wb;
GList *draw_list = wb->draw_list;
if(event->is_hint)
gdk_window_get_pointer(event->window, &x, &y, &state);
else
{
x = event->x;
y = event->y;
state = event->state;
}
if(state & GDK_BUTTON1_MASK && pixmap != NULL)
{
if((BrushState != BRUSH_STATE_DOWN) && (BrushState != BRUSH_STATE_MOTION))
{
purple_debug_error("gtkwhiteboard", "***Bad brush state transition %d to MOTION\n", BrushState);
BrushState = BRUSH_STATE_MOTION;
return FALSE;
}
BrushState = BRUSH_STATE_MOTION;
dx = x - LastX;
dy = y - LastY;
MotionCount++;
/* NOTE 100 is a temporary constant for how many deltas/motions in a
* stroke (needs UI Ops?)
*/
if(MotionCount == 100)
{
draw_list = g_list_append(draw_list, GINT_TO_POINTER(dx));
draw_list = g_list_append(draw_list, GINT_TO_POINTER(dy));
/* Send draw list to the draw_list handler */
purple_whiteboard_send_draw_list(gtkwb->wb, draw_list);
/* The brush stroke is finished, clear the list for another one */
if(draw_list)
{
purple_whiteboard_draw_list_destroy(draw_list);
draw_list = NULL;
}
/* Reset motion tracking */
MotionCount = 0;
draw_list = g_list_append(draw_list, GINT_TO_POINTER(LastX));
draw_list = g_list_append(draw_list, GINT_TO_POINTER(LastY));
dx = x - LastX;
dy = y - LastY;
}
draw_list = g_list_append(draw_list, GINT_TO_POINTER(dx));
draw_list = g_list_append(draw_list, GINT_TO_POINTER(dy));
pidgin_whiteboard_draw_brush_line(gtkwb->wb,
LastX, LastY,
x, y,
gtkwb->brush_color, gtkwb->brush_size);
/* Set tracking variables */
LastX = x;
LastY = y;
}
wb->draw_list = draw_list;
return TRUE;
}
static gboolean pidgin_whiteboard_brush_up(GtkWidget *widget, GdkEventButton *event, gpointer data)
{
PidginWhiteboard *gtkwb = (PidginWhiteboard*)data;
GdkPixmap *pixmap = gtkwb->pixmap;
PurpleWhiteboard *wb = gtkwb->wb;
GList *draw_list = wb->draw_list;
if((BrushState != BRUSH_STATE_DOWN) && (BrushState != BRUSH_STATE_MOTION))
{
purple_debug_error("gtkwhiteboard", "***Bad brush state transition %d to UP\n", BrushState);
BrushState = BRUSH_STATE_UP;
return FALSE;
}
BrushState = BRUSH_STATE_UP;
if(event->button == 1 && pixmap != NULL)
{
/* If the brush was never moved, express two sets of two deltas That's a
* 'point,' but not for Yahoo!
*/
/* if((event->x == LastX) && (event->y == LastY)) */
if(MotionCount == 0)
{
int index;
/* For Yahoo!, a (0 0) indicates the end of drawing */
/* FIXME: Yahoo Doodle specific! */
for(index = 0; index < 2; index++)
{
draw_list = g_list_append(draw_list, 0);
draw_list = g_list_append(draw_list, 0);
}
}
/*
else
MotionCount = 0;
*/
/* Send draw list to prpl draw_list handler */
purple_whiteboard_send_draw_list(gtkwb->wb, draw_list);
pidgin_whiteboard_set_canvas_as_icon(gtkwb);
/* The brush stroke is finished, clear the list for another one */
if(draw_list)
purple_whiteboard_draw_list_destroy(draw_list);
wb->draw_list = NULL;
}
return TRUE;
}
static void pidgin_whiteboard_draw_brush_point(PurpleWhiteboard *wb, int x, int y, int color, int size)
{
PidginWhiteboard *gtkwb = wb->ui_data;
GtkWidget *widget = gtkwb->drawing_area;
GdkPixmap *pixmap = gtkwb->pixmap;
cairo_t *gfx_con = g_object_get_data(G_OBJECT(pixmap), "cairo-context");
GdkColor col;
/* Interpret and convert color */
pidgin_whiteboard_rgb24_to_rgb48(color, &col);
gdk_cairo_set_source_color(gfx_con, &col);
/* Draw a circle */
cairo_arc(gfx_con,
x, y,
size / 2.0,
0.0, 2.0 * M_PI);
cairo_fill(gfx_con);
gtk_widget_queue_draw_area(widget,
x - size / 2, y - size / 2,
size, size);
}
/* Uses Bresenham's algorithm (as provided by Wikipedia) */
static void pidgin_whiteboard_draw_brush_line(PurpleWhiteboard *wb, int x0, int y0, int x1, int y1, int color, int size)
{
int temp;
int xstep;
int ystep;
int dx;
int dy;
int error;
int derror;
int x;
int y;
gboolean steep = abs(y1 - y0) > abs(x1 - x0);
if(steep)
{
temp = x0; x0 = y0; y0 = temp;
temp = x1; x1 = y1; y1 = temp;
}
dx = abs(x1 - x0);
dy = abs(y1 - y0);
error = 0;
derror = dy;
x = x0;
y = y0;
if(x0 < x1)
xstep = 1;
else
xstep = -1;
if(y0 < y1)
ystep = 1;
else
ystep = -1;
if(steep)
pidgin_whiteboard_draw_brush_point(wb, y, x, color, size);
else
pidgin_whiteboard_draw_brush_point(wb, x, y, color, size);
while(x != x1)
{
x += xstep;
error += derror;
if((error * 2) >= dx)
{
y += ystep;
error -= dx;
}
if(steep)
pidgin_whiteboard_draw_brush_point(wb, y, x, color, size);
else
pidgin_whiteboard_draw_brush_point(wb, x, y, color, size);
}
}
static void pidgin_whiteboard_set_dimensions(PurpleWhiteboard *wb, int width, int height)
{
PidginWhiteboard *gtkwb = wb->ui_data;
gtkwb->width = width;
gtkwb->height = height;
}
static void pidgin_whiteboard_set_brush(PurpleWhiteboard *wb, int size, int color)
{
PidginWhiteboard *gtkwb = wb->ui_data;
gtkwb->brush_size = size;
gtkwb->brush_color = color;
}
static void pidgin_whiteboard_clear(PurpleWhiteboard *wb)
{
PidginWhiteboard *gtkwb = wb->ui_data;
GdkPixmap *pixmap = gtkwb->pixmap;
GtkWidget *drawing_area = gtkwb->drawing_area;
cairo_t *cr = g_object_get_data(G_OBJECT(pixmap), "cairo-context");
gdk_cairo_set_source_color(cr, &drawing_area->style->white);
cairo_rectangle(cr,
0, 0,
drawing_area->allocation.width,
drawing_area->allocation.height);
cairo_fill(cr);
gtk_widget_queue_draw_area(drawing_area,
0, 0,
drawing_area->allocation.width,
drawing_area->allocation.height);
}
static void pidgin_whiteboard_button_clear_press(GtkWidget *widget, gpointer data)
{
PidginWhiteboard *gtkwb = (PidginWhiteboard*)(data);
/* Confirm whether the user really wants to clear */
GtkWidget *dialog = gtk_message_dialog_new(GTK_WINDOW(gtkwb->window),
GTK_DIALOG_DESTROY_WITH_PARENT,
GTK_MESSAGE_QUESTION,
GTK_BUTTONS_YES_NO,
_("Do you really want to clear?"));
gint response = gtk_dialog_run(GTK_DIALOG(dialog));
gtk_widget_destroy(dialog);
if (response == GTK_RESPONSE_YES)
{
pidgin_whiteboard_clear(gtkwb->wb);
pidgin_whiteboard_set_canvas_as_icon(gtkwb);
/* Do protocol specific clearing procedures */
purple_whiteboard_send_clear(gtkwb->wb);
}
}
static void pidgin_whiteboard_button_save_press(GtkWidget *widget, gpointer data)
{
PidginWhiteboard *gtkwb = (PidginWhiteboard*)(data);
GdkPixbuf *pixbuf;
GtkWidget *dialog;
int result;
dialog = gtk_file_chooser_dialog_new (_("Save File"),
GTK_WINDOW(gtkwb->window),
GTK_FILE_CHOOSER_ACTION_SAVE,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_SAVE, GTK_RESPONSE_ACCEPT,
NULL);
/* gtk_file_chooser_set_do_overwrite_confirmation(GTK_FILE_CHOOSER(dialog), (gboolean)(TRUE)); */
/* if(user_edited_a_new_document) */
{
/* gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(dialog), default_folder_for_saving); */
gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(dialog), "whiteboard.jpg");
}
/*
else
gtk_file_chooser_set_filename (GTK_FILE_CHOOSER (dialog), filename_for_existing_document);
*/
result = gtk_dialog_run(GTK_DIALOG(dialog));
if(result == GTK_RESPONSE_ACCEPT)
{
char *filename;
filename = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(dialog));
gtk_widget_destroy(dialog);
/* Makes an icon from the whiteboard's canvas 'image' */
pixbuf = gdk_pixbuf_get_from_drawable(NULL,
(GdkDrawable*)(gtkwb->pixmap),
gdk_drawable_get_colormap(gtkwb->pixmap),
0, 0,
0, 0,
gtkwb->width, gtkwb->height);
if(gdk_pixbuf_save(pixbuf, filename, "jpeg", NULL, "quality", "100", NULL))
purple_debug_info("gtkwhiteboard", "File Saved...\n");
else
purple_debug_info("gtkwhiteboard", "File not Saved... Error\n");
g_free(filename);
}
else if(result == GTK_RESPONSE_CANCEL)
{
gtk_widget_destroy(dialog);
purple_debug_info("gtkwhiteboard", "File not Saved... Cancelled\n");
}
}
static void pidgin_whiteboard_set_canvas_as_icon(PidginWhiteboard *gtkwb)
{
GdkPixbuf *pixbuf;
/* Makes an icon from the whiteboard's canvas 'image' */
pixbuf = gdk_pixbuf_get_from_drawable(NULL,
(GdkDrawable*)(gtkwb->pixmap),
gdk_drawable_get_colormap(gtkwb->pixmap),
0, 0,
0, 0,
gtkwb->width, gtkwb->height);
gtk_window_set_icon((GtkWindow*)(gtkwb->window), pixbuf);
}
static void pidgin_whiteboard_rgb24_to_rgb48(int color_rgb, GdkColor *color)
{
color->red = (color_rgb >> 8) | 0xFF;
color->green = (color_rgb & 0xFF00) | 0xFF;
color->blue = ((color_rgb & 0xFF) << 8) | 0xFF;
}
static void
change_color_cb(GtkColorSelection *selection, PidginWhiteboard *gtkwb)
{
GdkColor color;
int old_size = 5;
int old_color = 0;
int new_color;
PurpleWhiteboard *wb = gtkwb->wb;
gtk_color_selection_get_current_color(selection, &color);
new_color = (color.red & 0xFF00) << 8;
new_color |= (color.green & 0xFF00);
new_color |= (color.blue & 0xFF00) >> 8;
purple_whiteboard_get_brush(wb, &old_size, &old_color);
purple_whiteboard_send_brush(wb, old_size, new_color);
}
static void color_selection_dialog_destroy(GtkWidget *w, PidginWhiteboard *gtkwb)
{
GtkWidget *dialog = g_object_get_data(G_OBJECT(gtkwb->window), "colour-dialog");
gtk_widget_destroy(dialog);
g_object_set_data(G_OBJECT(gtkwb->window), "colour-dialog", NULL);
}
static void color_select_dialog(GtkWidget *widget, PidginWhiteboard *gtkwb)
{
GdkColor color;
GtkColorSelectionDialog *dialog;
dialog = (GtkColorSelectionDialog *)gtk_color_selection_dialog_new(_("Select color"));
g_object_set_data(G_OBJECT(gtkwb->window), "colour-dialog", dialog);
g_signal_connect(G_OBJECT(dialog->colorsel), "color-changed",
G_CALLBACK(change_color_cb), gtkwb);
gtk_widget_destroy(dialog->cancel_button);
gtk_widget_destroy(dialog->help_button);
g_signal_connect(G_OBJECT(dialog->ok_button), "clicked",
G_CALLBACK(color_selection_dialog_destroy), gtkwb);
gtk_color_selection_set_has_palette(GTK_COLOR_SELECTION(dialog->colorsel), TRUE);
pidgin_whiteboard_rgb24_to_rgb48(gtkwb->brush_color, &color);
gtk_color_selection_set_current_color(GTK_COLOR_SELECTION(dialog->colorsel), &color);
gtk_widget_show_all(GTK_WIDGET(dialog));
}