* Author: Carl Worth <carl@theworths.org>
*/
+#include <math.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+
#include <Xr.h>
#include <xsvg.h>
-#include <math.h>
-#include <stdio.h>
#include <gtk/gtkmain.h>
#include <gtk/gtksignal.h>
#include <gdk/gdkx.h>
/* Forward declarations */
+static int
+grr_sprintf_alloc (char **str, const char *fmt, ...);
+
+static int
+grr_sprintf_alloc_va (char **str, const char *fmt, va_list ap);
+
+
static void grr_board_view_class_init (grr_board_view_class_t *klass);
static void grr_board_view_init (grr_board_view_t *view);
static void grr_board_view_destroy (GtkObject *object);
static void grr_board_view_realize (GtkWidget *widget);
static void grr_board_view_size_request (GtkWidget *widget,
- GtkRequisition *requisition);
+ GtkRequisition *requisition);
static void grr_board_view_size_allocate (GtkWidget *widget,
- GtkAllocation *allocation);
+ GtkAllocation *allocation);
static gint grr_board_view_expose (GtkWidget *widget,
- GdkEventExpose *event);
+ GdkEventExpose *event);
static gint grr_board_view_button_press (GtkWidget *widget,
- GdkEventButton *event);
+ GdkEventButton *event);
static gint grr_board_view_button_release (GtkWidget *widget,
- GdkEventButton *event);
+ GdkEventButton *event);
static gint grr_board_view_motion_notify (GtkWidget *widget,
- GdkEventMotion *event);
-static gint grr_board_view_timer (grr_board_view_t *view);
+ GdkEventMotion *event);
static void grr_board_view_update_mouse (grr_board_view_t *view, gint x, gint y);
static void grr_board_view_update (grr_board_view_t *view);
static void
grr_board_view_class_init (grr_board_view_class_t *class)
{
- GtkObjectClass *object_class;
- GtkWidgetClass *widget_class;
+ GtkObjectClass *object_class;
+ GtkWidgetClass *widget_class;
- object_class = (GtkObjectClass*) class;
- widget_class = (GtkWidgetClass*) class;
+ object_class = (GtkObjectClass*) class;
+ widget_class = (GtkWidgetClass*) class;
- parent_class = gtk_type_class (gtk_widget_get_type ());
+ parent_class = gtk_type_class (gtk_widget_get_type ());
- object_class->destroy = grr_board_view_destroy;
+ object_class->destroy = grr_board_view_destroy;
- widget_class->realize = grr_board_view_realize;
- widget_class->expose_event = grr_board_view_expose;
- widget_class->size_request = grr_board_view_size_request;
- widget_class->size_allocate = grr_board_view_size_allocate;
- widget_class->button_press_event = grr_board_view_button_press;
- widget_class->button_release_event = grr_board_view_button_release;
- widget_class->motion_notify_event = grr_board_view_motion_notify;
+ widget_class->realize = grr_board_view_realize;
+ widget_class->expose_event = grr_board_view_expose;
+ widget_class->size_request = grr_board_view_size_request;
+ widget_class->size_allocate = grr_board_view_size_allocate;
+ widget_class->button_press_event = grr_board_view_button_press;
+ widget_class->button_release_event = grr_board_view_button_release;
+ widget_class->motion_notify_event = grr_board_view_motion_notify;
}
static void
grr_board_view_init (grr_board_view_t *view)
{
view->board = NULL;
- view->owns_board = 0;
+ view->client = NULL;
view->button = 0;
- view->policy = GTK_UPDATE_CONTINUOUS;
view->timer = 0;
- view->radius = 0;
- view->pointer_width = 0;
- view->angle = 0.0;
- view->old_value = 0.0;
- view->old_lower = 0.0;
- view->old_upper = 0.0;
}
GtkWidget*
view = g_object_new (grr_board_view_get_type (), NULL);
- if (board == NULL) {
- board = rr_board_create (16, 16);
- view->owns_board = 1;
- }
+ view->board = board;
- grr_board_view_set_board (view, board);
+ grr_board_view_update (view);
return GTK_WIDGET (view);
}
+void
+grr_board_view_set_client (grr_board_view_t *view, rr_client_t *client)
+{
+ g_return_if_fail (view != NULL);
+
+ view->client = client;
+}
+
static void
grr_board_view_destroy (GtkObject *object)
{
view = GRR_BOARD_VIEW (object);
- rr_board_destroy (view->board);
-
- if (view->board && view->owns_board) {
- rr_board_destroy (view->board);
- view->board = NULL;
- }
+ view->board = NULL;
+ view->client = NULL;
if (GTK_OBJECT_CLASS (parent_class)->destroy)
(* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
}
-void
-grr_board_view_set_board (grr_board_view_t *view,
- rr_board_t *board)
-{
- g_return_if_fail (view != NULL);
- g_return_if_fail (GRR_IS_BOARD_VIEW (view));
-
- view->board = board;
-
- grr_board_view_update (view);
-}
-
static void
grr_board_view_realize (GtkWidget *widget)
{
- grr_board_view_t *view;
- GdkWindowAttr attributes;
- gint attributes_mask;
-
- g_return_if_fail (widget != NULL);
- g_return_if_fail (GRR_IS_BOARD_VIEW (widget));
-
- GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
- view = GRR_BOARD_VIEW (widget);
-
- attributes.x = widget->allocation.x;
- attributes.y = widget->allocation.y;
- attributes.width = widget->allocation.width;
- attributes.height = widget->allocation.height;
- attributes.wclass = GDK_INPUT_OUTPUT;
- attributes.window_type = GDK_WINDOW_CHILD;
- attributes.event_mask = gtk_widget_get_events (widget) |
- GDK_EXPOSURE_MASK | GDK_BUTTON_PRESS_MASK |
- GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK |
- GDK_POINTER_MOTION_HINT_MASK;
- attributes.visual = gtk_widget_get_visual (widget);
- attributes.colormap = gtk_widget_get_colormap (widget);
-
- attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
- widget->window = gdk_window_new (widget->parent->window, &attributes, attributes_mask);
+ grr_board_view_t *view;
+ GdkWindowAttr attributes;
+ gint attributes_mask;
- widget->style = gtk_style_attach (widget->style, widget->window);
+ g_return_if_fail (widget != NULL);
+ g_return_if_fail (GRR_IS_BOARD_VIEW (widget));
+
+ GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
+ view = GRR_BOARD_VIEW (widget);
- gdk_window_set_user_data (widget->window, widget);
+ attributes.x = widget->allocation.x;
+ attributes.y = widget->allocation.y;
+ attributes.width = widget->allocation.width;
+ attributes.height = widget->allocation.height;
+ attributes.wclass = GDK_INPUT_OUTPUT;
+ attributes.window_type = GDK_WINDOW_CHILD;
+ attributes.event_mask = gtk_widget_get_events (widget) |
+ GDK_EXPOSURE_MASK | GDK_BUTTON_PRESS_MASK |
+ GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK |
+ GDK_POINTER_MOTION_HINT_MASK;
+ attributes.visual = gtk_widget_get_visual (widget);
+ attributes.colormap = gtk_widget_get_colormap (widget);
+
+ attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
+ widget->window = gdk_window_new (widget->parent->window, &attributes, attributes_mask);
+
+ widget->style = gtk_style_attach (widget->style, widget->window);
+
+ gdk_window_set_user_data (widget->window, widget);
- gtk_style_set_background (widget->style, widget->window, GTK_STATE_ACTIVE);
+ gtk_style_set_background (widget->style, widget->window, GTK_STATE_ACTIVE);
}
static void
grr_board_view_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
- requisition->width = GRR_BOARD_VIEW_DEFAULT_SIZE;
- requisition->height = GRR_BOARD_VIEW_DEFAULT_SIZE;
+ requisition->width = GRR_BOARD_VIEW_DEFAULT_SIZE;
+ requisition->height = GRR_BOARD_VIEW_DEFAULT_SIZE;
}
static void
grr_board_view_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
- grr_board_view_t *view;
-
- g_return_if_fail (widget != NULL);
- g_return_if_fail (GRR_IS_BOARD_VIEW (widget));
- g_return_if_fail (allocation != NULL);
-
- widget->allocation = *allocation;
- view = GRR_BOARD_VIEW (widget);
+ grr_board_view_t *view;
- if (GTK_WIDGET_REALIZED (widget))
- {
+ g_return_if_fail (widget != NULL);
+ g_return_if_fail (GRR_IS_BOARD_VIEW (widget));
+ g_return_if_fail (allocation != NULL);
- gdk_window_move_resize (widget->window,
- allocation->x, allocation->y,
- allocation->width, allocation->height);
+ widget->allocation = *allocation;
+ view = GRR_BOARD_VIEW (widget);
+ if (GTK_WIDGET_REALIZED (widget)) {
+ gdk_window_move_resize (widget->window,
+ allocation->x, allocation->y,
+ allocation->width, allocation->height);
}
- view->radius = MIN (allocation->width, allocation->height) * 0.45;
- view->pointer_width = view->radius / 5;
}
static void
GdkEventExpose *event)
{
grr_board_view_t *view;
+ rr_board_t *board;
Display *dpy;
Drawable drawable;
XrState *xrs;
return FALSE;
view = GRR_BOARD_VIEW (widget);
+ board = view->board;
/* Unabstract X from GTK+ */
gdk_window_get_internal_paint_info (widget->window, &real_drawable, &x_off, &y_off);
XrSetTargetDrawable (xrs, dpy, drawable);
XrTranslate (xrs, -x_off, -y_off);
- rr_board_get_size (view->board, &view->board_width, &view->board_height);
+ rr_board_get_size (board, &view->board_width, &view->board_height);
view->cell_width = widget->allocation.width / view->board_width;
if (view->cell_width == 0)
XrTranslate (xrs, view->board_pad_x, view->board_pad_y);
- goal_target = rr_board_get_goal_target (view->board);
+ goal_target = rr_board_get_goal_target (board);
/* Draw cell targets */
for (j=0; j < view->board_height; j++) {
XrSave (xrs);
XrTranslate (xrs, i * view->cell_width, j * view->cell_height);
grr_cell_draw (xrs,
- rr_board_get_cell (view->board, i, j),
+ rr_board_get_cell (board, i, j),
goal_target,
view->cell_width, view->cell_height);
XrRestore (xrs);
XrScale (xrs,
view->cell_width / GRR_SVG_ASSUMED_WIDTH,
view->cell_height / GRR_SVG_ASSUMED_HEIGHT);
- grr_wall_draw (xrs, RR_CELL_GET_WALLS (rr_board_get_cell(view->board, i, j)));
+ grr_wall_draw (xrs, RR_CELL_GET_WALLS (rr_board_get_cell(board, i, j)));
XrRestore (xrs);
}
}
return FALSE;
}
-/*
static void
grr_board_view_pointer_coords_to_grid (grr_board_view_t *view,
int pointer_x, int pointer_y,
- int *grid_x, af
-*/
+ int *grid_x, int *grid_y)
+{
+ *grid_x = (pointer_x - view->board_pad_x) / view->cell_width;
+ *grid_y = (pointer_y - view->board_pad_y) / view->cell_height;
+}
+
+
static gint
grr_board_view_button_press (GtkWidget *widget,
GdkEventButton *event)
{
- grr_board_view_t *view;
-
- g_return_val_if_fail (widget != NULL, FALSE);
- g_return_val_if_fail (GRR_IS_BOARD_VIEW (widget), FALSE);
- g_return_val_if_fail (event != NULL, FALSE);
+ grr_board_view_t *view;
+ rr_cell_t cell;
+ int x, y;
- view = GRR_BOARD_VIEW (widget);
+ g_return_val_if_fail (widget != NULL, FALSE);
+ g_return_val_if_fail (GRR_IS_BOARD_VIEW (widget), FALSE);
+ g_return_val_if_fail (event != NULL, FALSE);
+
+ view = GRR_BOARD_VIEW (widget);
-/*
- grr_board_view_pointer_coords_to_grid (view, event->x, event->y, &i, &j);
-*/
+ grr_board_view_pointer_coords_to_grid (view,
+ event->x, event->y,
+ &x, &y);
-/*
- if (!view->button &&
- rr_board_has_robot (view->board, i, j))
- {
- gtk_grab_add (widget);
+ cell = rr_board_get_cell (view->board, x, y);
+ if (!view->button && RR_CELL_GET_ROBOT (cell)) {
+
+ gtk_grab_add (widget);
- view->button = event->button;
+ view->button = event->button;
+ view->drag_x = x;
+ view->drag_y = y;
+ view->drag_robot = RR_CELL_GET_ROBOT (cell);
- grr_board_view_update_mouse (view, event->x, event->y);
+ grr_board_view_update_mouse (view, event->x, event->y);
}
- */
- return FALSE;
+ return FALSE;
}
static gint
grr_board_view_button_release (GtkWidget *widget,
GdkEventButton *event)
{
- grr_board_view_t *view;
+ grr_board_view_t *view;
+ const char *dir;
+ const char *robot;
+ int x, y;
+ int dx, dy;
- g_return_val_if_fail (widget != NULL, FALSE);
- g_return_val_if_fail (GRR_IS_BOARD_VIEW (widget), FALSE);
- g_return_val_if_fail (event != NULL, FALSE);
+ g_return_val_if_fail (widget != NULL, FALSE);
+ g_return_val_if_fail (GRR_IS_BOARD_VIEW (widget), FALSE);
+ g_return_val_if_fail (event != NULL, FALSE);
- view = GRR_BOARD_VIEW (widget);
+ view = GRR_BOARD_VIEW (widget);
- if (view->button == event->button) {
-/*
+ if (view->button == event->button) {
gtk_grab_remove (widget);
-*/
view->button = 0;
-/*
- grr_board_view_pointer_coords_to_grid (view, event->x, event->y, &i, &j);
-*/
+ grr_board_view_pointer_coords_to_grid (view, event->x, event->y, &x, &y);
- /* XXX: Need to compute direction based on (i, j) and old (i, j) */
-/*
- rr_client_move (view->client, view->robot, direction);
-*/
+ dx = x - view->drag_x;
+ dy = y - view->drag_y;
+ if (dx == 0 && dy == 0)
+ return FALSE;
- }
+ if (abs(dx) > abs(dy))
+ if (x > view->drag_x)
+ dir = "east";
+ else
+ dir = "west";
+ else
+ if (y > view->drag_y)
+ dir = "south";
+ else
+ dir = "north";
+
+ switch (view->drag_robot) {
+ case RR_ROBOT_BLUE:
+ robot = "blue";
+ break;
+ case RR_ROBOT_GREEN:
+ robot = "green";
+ break;
+ case RR_ROBOT_RED:
+ robot = "RED";
+ break;
+ case RR_ROBOT_YELLOW:
+ robot = "YELLOW";
+ break;
+ default:
+ return FALSE;
+ }
+
+ if (view->client) {
+ char *move_str;
+
+ grr_sprintf_alloc (&move_str, "%s %s", robot, dir);
+ if (move_str == NULL)
+ return FALSE;
+ rr_client_move (view->client, move_str);
+ free (move_str);
+ }
+ }
return FALSE;
}
grr_board_view_motion_notify (GtkWidget *widget,
GdkEventMotion *event)
{
- grr_board_view_t *view;
- GdkModifierType mods;
- gint x, y, mask;
-
- g_return_val_if_fail (widget != NULL, FALSE);
- g_return_val_if_fail (GRR_IS_BOARD_VIEW (widget), FALSE);
- g_return_val_if_fail (event != NULL, FALSE);
-
- view = GRR_BOARD_VIEW (widget);
-
- if (view->button != 0)
- {
- x = event->x;
- y = event->y;
-
- if (event->is_hint || (event->window != widget->window))
- gdk_window_get_pointer (widget->window, &x, &y, &mods);
-
- switch (view->button)
- {
+ grr_board_view_t *view;
+ GdkModifierType mods;
+ gint x, y, mask;
+
+ g_return_val_if_fail (widget != NULL, FALSE);
+ g_return_val_if_fail (GRR_IS_BOARD_VIEW (widget), FALSE);
+ g_return_val_if_fail (event != NULL, FALSE);
+
+ view = GRR_BOARD_VIEW (widget);
+
+ if (view->button != 0) {
+ x = event->x;
+ y = event->y;
+
+ if (event->is_hint || (event->window != widget->window))
+ gdk_window_get_pointer (widget->window, &x, &y, &mods);
+
+ switch (view->button) {
case 1:
- mask = GDK_BUTTON1_MASK;
- break;
+ mask = GDK_BUTTON1_MASK;
+ break;
case 2:
- mask = GDK_BUTTON2_MASK;
- break;
+ mask = GDK_BUTTON2_MASK;
+ break;
case 3:
- mask = GDK_BUTTON3_MASK;
- break;
+ mask = GDK_BUTTON3_MASK;
+ break;
default:
- mask = 0;
- break;
+ mask = 0;
+ break;
}
- if (mods & mask)
- grr_board_view_update_mouse (view, x,y);
+ if (mods & mask)
+ grr_board_view_update_mouse (view, x,y);
}
- return FALSE;
+ return FALSE;
}
-static gint
-grr_board_view_timer (grr_board_view_t *view)
+static void
+grr_board_view_update_mouse (grr_board_view_t *view, gint x, gint y)
{
- g_return_val_if_fail (view != NULL, FALSE);
- g_return_val_if_fail (GRR_IS_BOARD_VIEW (view), FALSE);
+ g_return_if_fail (view != NULL);
+ g_return_if_fail (GRR_IS_BOARD_VIEW (view));
- return FALSE;
+ /* XXX: Should draw a robot here */
}
static void
-grr_board_view_update_mouse (grr_board_view_t *view, gint x, gint y)
+grr_board_view_update (grr_board_view_t *view)
{
- gint xc, yc;
- gfloat old_value;
-
g_return_if_fail (view != NULL);
g_return_if_fail (GRR_IS_BOARD_VIEW (view));
- xc = GTK_WIDGET(view)->allocation.width / 2;
- yc = GTK_WIDGET(view)->allocation.height / 2;
+ gtk_widget_queue_draw (GTK_WIDGET (view));
+}
- old_value = view->adjustment->value;
- view->angle = atan2(yc-y, x-xc);
+static int
+grr_sprintf_alloc (char **str, const char *fmt, ...)
+{
+ int ret;
+ va_list ap;
- if (view->angle < -G_PI/2.)
- view->angle += 2*G_PI;
-
- if (view->angle < -G_PI/6)
- view->angle = -G_PI/6;
+ va_start(ap, fmt);
+ ret = grr_sprintf_alloc_va (str, fmt, ap);
+ va_end(ap);
- if (view->angle > 7.*G_PI/6.)
- view->angle = 7.*G_PI/6.;
-
- view->adjustment->value = view->adjustment->lower + (7.*G_PI/6 - view->angle) *
- (view->adjustment->upper - view->adjustment->lower) / (4.*G_PI/3.);
-
- if (view->adjustment->value != old_value)
- {
- if (view->policy == GTK_UPDATE_CONTINUOUS)
- {
- g_signal_emit_by_name (GTK_OBJECT (view->adjustment), "value_changed");
- }
- else
- {
- gtk_widget_queue_draw (GTK_WIDGET (view));
-
- if (view->policy == GTK_UPDATE_DELAYED)
- {
- if (view->timer)
- gtk_timeout_remove (view->timer);
-
- view->timer = gtk_timeout_add (SCROLL_DELAY_LENGTH,
- (GtkFunction) grr_board_view_timer,
- (gpointer) view);
- }
- }
- }
+ return ret;
}
-static void
-grr_board_view_update (grr_board_view_t *view)
+/* ripped more or less straight out of PRINTF(3) */
+static int
+grr_sprintf_alloc_va (char **str, const char *fmt, va_list ap)
{
- g_return_if_fail (view != NULL);
- g_return_if_fail (GRR_IS_BOARD_VIEW (view));
-
- gtk_widget_queue_draw (GTK_WIDGET (view));
+ char *new_str;
+ /* Guess we need no more than 100 bytes. */
+ int n, size = 100;
+
+ if ((*str = malloc (size)) == NULL)
+ return -1;
+ while (1) {
+ /* Try to print in the allocated space. */
+ n = vsnprintf (*str, size, fmt, ap);
+ /* If that worked, return the size. */
+ if (n > -1 && n < size)
+ return n;
+ /* Else try again with more space. */
+ if (n > -1) /* glibc 2.1 */
+ size = n+1; /* precisely what is needed */
+ else /* glibc 2.0 */
+ size *= 2; /* twice the old size */
+ new_str = realloc(*str, size);
+ if (new_str == NULL) {
+ free(*str);
+ *str = NULL;
+ return -1;
+ }
+ *str = new_str;
+ }
}
projects / grrobot / blobdiff