/* Callback for button press in the directory tree area */
static int
dirtree_select_cb( GtkWidget *ctree_w, GdkEventButton *ev_button )
{
GNode *dnode;
int row;
/* If About presentation is up, end it */
about( ABOUT_END );
if (globals.fsv_mode == FSV_SPLASH)
return FALSE;
gtk_clist_get_selection_info( GTK_CLIST(ctree_w), ev_button->x, ev_button->y, &row, NULL );
if (row < 0)
return FALSE;
dnode = (GNode *)gtk_clist_get_row_data( GTK_CLIST(ctree_w), row );
if (dnode == NULL)
return FALSE;
/* A single-click from button 1 highlights the node, shows the
* name, and updates the file list if necessary. (and also selects
* the row, but GTK+ does that automatically for us) */
if ((ev_button->button == 1) && (ev_button->type == GDK_BUTTON_PRESS)) {
geometry_highlight_node( dnode, FALSE );
window_statusbar( SB_RIGHT, node_absname( dnode ) );
if (dnode != dirtree_current_dnode)
filelist_populate( dnode );
dirtree_current_dnode = dnode;
return FALSE;
}
/* A double-click from button 1 gets the camera moving */
if ((ev_button->button == 1) && (ev_button->type == GDK_2BUTTON_PRESS)) {
camera_look_at( dnode );
/* Preempt the forthcoming tree expand/collapse
* (the standard action spawned by a double-click) */
gtk_signal_emit_stop_by_name( GTK_OBJECT(ctree_w), "button_press_event" );
return TRUE;
}
/* A click from button 3 selects the row, highlights the node,
* shows the name, updates the file list if necessary, and brings
* up a context-sensitive menu */
if (ev_button->button == 3) {
gtk_clist_select_row( GTK_CLIST(ctree_w), row, 0 );
geometry_highlight_node( dnode, FALSE );
window_statusbar( SB_RIGHT, node_absname( dnode ) );
if (dnode != dirtree_current_dnode)
filelist_populate( dnode );
dirtree_current_dnode = dnode;
context_menu( dnode, ev_button );
return FALSE;
}
return FALSE;
}
/* Callback for a click in the file list area */
static int
filelist_select_cb( GtkWidget *clist_w, GdkEventButton *ev_button )
{
GNode *node;
int row;
/* If About presentation is up, end it */
about( ABOUT_END );
if (globals.fsv_mode == FSV_SPLASH)
return FALSE;
gtk_clist_get_selection_info( GTK_CLIST(clist_w), ev_button->x, ev_button->y, &row, NULL );
if (row < 0)
return FALSE;
node = (GNode *)gtk_clist_get_row_data( GTK_CLIST(clist_w), row );
if (node == NULL)
return FALSE;
/* A single-click from button 1 highlights the node and shows the
* name (and also selects the row, but GTK+ does that for us) */
if ((ev_button->button == 1) && (ev_button->type == GDK_BUTTON_PRESS)) {
geometry_highlight_node( node, FALSE );
window_statusbar( SB_RIGHT, node_absname( node ) );
return FALSE;
}
/* A double-click from button 1 gets the camera moving */
if ((ev_button->button == 1) && (ev_button->type == GDK_2BUTTON_PRESS)) {
camera_look_at( node );
return FALSE;
}
/* A click from button 3 selects the row, highlights the node,
* shows the name, and pops up a context-sensitive menu */
if (ev_button->button == 3) {
gtk_clist_select_row( GTK_CLIST(clist_w), row, 0 );
geometry_highlight_node( node, FALSE );
window_statusbar( SB_RIGHT, node_absname( node ) );
context_menu( node, ev_button );
return FALSE;
}
return FALSE;
}
/* This callback catches all events for the viewport */
int
viewport_cb( GtkWidget *gl_area_w, GdkEvent *event )
{
GdkEventButton *ev_button;
GdkEventMotion *ev_motion;
GNode *node;
double dx, dy;
unsigned int face_id;
int x, y;
boolean btn1, btn2, btn3;
boolean ctrl_key;
/* Handle low-level GL area widget events */
switch (event->type) {
case GDK_EXPOSE:
ogl_refresh( );
return FALSE;
case GDK_CONFIGURE:
ogl_resize( );
return FALSE;
default:
/* Event is probably coming from the mouse */
break;
}
if (event->type == GDK_BUTTON_PRESS) {
/* Exit the About presentation if it is up */
if (about( ABOUT_END )) {
indicated_node = NULL;
return FALSE;
}
}
/* If we're in splash screen mode, proceed no further */
if (globals.fsv_mode == FSV_SPLASH)
return FALSE;
/* Mouse-related events */
switch (event->type) {
case GDK_BUTTON_PRESS:
ev_button = (GdkEventButton *)event;
btn1 = ev_button->button == 1;
btn2 = ev_button->button == 2;
btn3 = ev_button->button == 3;
ctrl_key = ev_button->state & GDK_CONTROL_MASK;
x = (int)ev_button->x;
y = (int)ev_button->y;
if (camera_moving( )) {
/* Yipe! Impatient user */
camera_pan_finish( );
indicated_node = NULL;
}
else if (!ctrl_key) {
if (btn2)
indicated_node = NULL;
else
indicated_node = node_at_location( x, y, &face_id );
if (indicated_node == NULL) {
geometry_highlight_node( NULL, FALSE );
window_statusbar( SB_RIGHT, "" );
}
else {
if (geometry_should_highlight( indicated_node, face_id ) || btn1)
geometry_highlight_node( indicated_node, btn1 );
else
geometry_highlight_node( NULL, FALSE );
window_statusbar( SB_RIGHT, node_absname( indicated_node ) );
if (btn3) {
/* Bring up context-sensitive menu */
context_menu( indicated_node, ev_button );
filelist_show_entry( indicated_node );
}
}
}
prev_x = x;
prev_y = y;
break;
case GDK_2BUTTON_PRESS:
/* Ignore second click of a double-click */
break;
case GDK_BUTTON_RELEASE:
ev_button = (GdkEventButton *)event;
btn1 = ev_button->state & GDK_BUTTON1_MASK;
ctrl_key = ev_button->state & GDK_CONTROL_MASK;
if (btn1 && !ctrl_key && !camera_moving( ) && (indicated_node != NULL))
camera_look_at( indicated_node );
gui_cursor( gl_area_w, -1 );
break;
case GDK_MOTION_NOTIFY:
ev_motion = (GdkEventMotion *)event;
btn1 = ev_motion->state & GDK_BUTTON1_MASK;
btn2 = ev_motion->state & GDK_BUTTON2_MASK;
btn3 = ev_motion->state & GDK_BUTTON3_MASK;
ctrl_key = ev_motion->state & GDK_CONTROL_MASK;
x = (int)ev_motion->x;
y = (int)ev_motion->y;
if (!camera_moving( ) && !gtk_events_pending( )) {
if (btn2) {
/* Dolly the camera */
gui_cursor( gl_area_w, GDK_DOUBLE_ARROW );
dy = MOUSE_SENSITIVITY * (y - prev_y);
camera_dolly( - dy );
indicated_node = NULL;
}
else if (ctrl_key && btn1) {
/* Revolve the camera */
gui_cursor( gl_area_w, GDK_FLEUR );
dx = MOUSE_SENSITIVITY * (x - prev_x);
dy = MOUSE_SENSITIVITY * (y - prev_y);
camera_revolve( dx, dy );
indicated_node = NULL;
}
else if (!ctrl_key && (btn1 || btn3)) {
/* Pointless dragging */
if (indicated_node != NULL) {
node = node_at_location( x, y, &face_id );
if (node != indicated_node)
indicated_node = NULL;
}
}
else
indicated_node = node_at_location( x, y, &face_id );
/* Update node highlighting */
if (indicated_node == NULL) {
geometry_highlight_node( NULL, FALSE );
window_statusbar( SB_RIGHT, "" );
}
else {
if (geometry_should_highlight( indicated_node, face_id ) || btn1)
geometry_highlight_node( indicated_node, btn1 );
else
geometry_highlight_node( NULL, FALSE);
window_statusbar( SB_RIGHT, node_absname( indicated_node ) );
}
prev_x = x;
prev_y = y;
}
break;
case GDK_LEAVE_NOTIFY:
/* The mouse has left the viewport */
geometry_highlight_node( NULL, FALSE );
window_statusbar( SB_RIGHT, "" );
gui_cursor( gl_area_w, -1 );
indicated_node = NULL;
break;
default:
/* Ignore event */
break;
}
return FALSE;
}
static void draw_screen()
{
static double last_frame_time;
static int frame_index;
static float frame_rates[FRAME_INDEX_MAX];
static float frame_times[FRAME_INDEX_MAX];
double start_time = time_now_double();
glClearColor(0.0, 0.0, 0.0, 0.0);
graph_dev_start_frame();
sng_set_foreground(WHITE);
sng_abs_xy_draw_string("F1 FOR HELP", NANO_FONT, SCREEN_WIDTH - 100, 10);
static struct entity_context *cx;
if (!cx)
cx = entity_context_new(50, 50);
if (wireframe != oldwireframe) {
oldwireframe = wireframe;
if (wireframe)
set_renderer(cx, WIREFRAME_RENDERER | BLACK_TRIS);
else
set_renderer(cx, FLATSHADING_RENDERER);
}
float r = target_mesh->radius / tan(FOV / 3.0); /* 50% size for middle zoom */
float r_cam = r * lobby_zoom / 255.0;
camera_set_parameters(cx, 0.1f, r * 2.2, SCREEN_WIDTH, SCREEN_HEIGHT, FOV);
camera_set_pos(cx, r_cam, 0, 0);
camera_look_at(cx, 0, 0, 0);
camera_assign_up_direction(cx, 0, 1, 0);
union vec3 light_pos = { { 1.01 * r, 0, 0 } };
quat_rot_vec_self(&light_pos, &light_orientation);
set_lighting(cx, light_pos.v.x, light_pos.v.y, light_pos.v.z);
calculate_camera_transform(cx);
struct entity *e = add_entity(cx, target_mesh, 0, 0, 0, WHITE);
struct entity *ae = NULL;
if (planet_mode) {
update_entity_material(e, &planet_material);
if (draw_atmosphere) {
ae = add_entity(cx, atmosphere_mesh, 0, 0, 0, WHITE);
update_entity_scale(ae, 1.03);
update_entity_material(ae, &atmosphere_material);
}
}
update_entity_orientation(e, &lobby_orientation);
if (isDraggingLight) {
union vec3 light_dir = { { 10.75 * r_cam, 0, 0 } };
quat_rot_vec_self(&light_dir, &light_orientation);
sng_set_foreground(WHITE);
render_line(cx, light_dir.v.x, light_dir.v.y, light_dir.v.z, 0, 0, 0);
e = add_entity(cx, light_mesh, light_dir.v.x, light_dir.v.y, light_dir.v.z, WHITE);
} else {
e = add_entity(cx, light_mesh, light_pos.v.x, light_pos.v.y, light_pos.v.z, WHITE);
}
render_entities(cx);
remove_all_entity(cx);
if (helpmode)
draw_help_screen(0);
if (display_frame_stats > 0) {
float avg_frame_rate = 0;
float avg_frame_time = 0;
int i;
for (i = 0; i < FRAME_INDEX_MAX; i++) {
avg_frame_rate += frame_rates[i];
avg_frame_time += frame_times[i];
}
avg_frame_rate /= (float)FRAME_INDEX_MAX;
avg_frame_time /= (float)FRAME_INDEX_MAX;
sng_set_foreground(WHITE);
char stat_buffer[30];
sprintf(stat_buffer, "fps %5.2f", 1.0/avg_frame_rate);
sng_abs_xy_draw_string(stat_buffer, NANO_FONT, 2, 10);
sprintf(stat_buffer, "t %0.2f ms", avg_frame_time * 1000.0);
sng_abs_xy_draw_string(stat_buffer, NANO_FONT, 92, 10);
}
if (display_frame_stats > 1)
graph_dev_display_debug_menu_show();
graph_dev_end_frame();
glFinish();
/*
* Swap the buffers. This this tells the driver to
* render the next frame from the contents of the
* back-buffer, and to set all rendering operations
* to occur on what was the front-buffer.
*
* Double buffering prevents nasty visual tearing
* from the application drawing on areas of the
* screen that are being updated at the same time.
*/
SDL_GL_SwapBuffers();
if (display_frame_stats > 0) {
double end_time = time_now_double();
frame_rates[frame_index] = start_time - last_frame_time;
frame_times[frame_index] = end_time - start_time;
frame_index = (frame_index + 1) % FRAME_INDEX_MAX;
last_frame_time = start_time;
}
}
