/** redraw every node on the canvas from the buffer (without
* necessarily reexamining the grid) */
void
Canvas::redraw ( void )
{
DMESSAGE( "redrawing canvas" );
if ( ! m.grid_drawn )
draw();
m.ruler_drawn = false;
m.mapping_drawn = false;
draw_mapping();
draw_ruler();
for ( int y = m.vp->h; y--; )
for ( int x = m.vp->w; x--; )
{
cell_t c = m.previous[ x ][ y ];
if ( c.shape > HEXAGON ) return;
if ( m.vp->x + x == m.playhead )
c.flags |= F_PLAYHEAD;
gui_draw_shape( m.origin_x + m.margin_left + x * m.div_w, m.origin_y + m.margin_top + y * m.div_h, m.div_w, m.div_h, m.border_w,
c.shape, c.state, c.flags, c.color );
}
}
/* snap ruler back to origing (0,0) */
void
ruler_snap_origin(XEvent *event)
{
clear_ruler();
g_ruler_pos_x = g_ruler_pos_y = 0;
draw_ruler(g_ruler_pos_x, g_ruler_pos_y);
/* deactivate mouse dragging */
mouse_motion = mouse_release = null_mouse;
show_distance_from_ruler(event, False);
}
/** draw ONLY those nodes necessary to bring the canvas up-to-date with the grid */
void
Canvas::draw ( void )
{
DMESSAGE( "drawing canvas" );
draw_mapping();
draw_ruler();
m.grid_drawn = true;
m.grid->draw( this, m.vp->x, m.vp->y, m.vp->w, m.vp->h );
}
void
drag_ruler_motion(XEvent *event)
{
int loc_x, loc_y;
if (event == NULL) { /* toggled via menu */
/* hack to avoid redrawing ruler at last g_* positions when mode is
toggled on via menu, then off via keystroke */
g_ruler_pos_x = g_ruler_pos_y = 0;
return;
}
loc_x = event->xbutton.x;
loc_y = event->xbutton.y;
if (event->xbutton.window != mane.win) {
Window dummy;
(void)XTranslateCoordinates(DISP,
RootWindowOfScreen(SCRN), mane.win,
event->xbutton.x_root,
event->xbutton.y_root,
&loc_x,
&loc_y,
&dummy);
}
/* map everything below 0 to the origin */
if (loc_x < 0)
loc_x = 0;
if (loc_y < 0)
loc_y = 0;
clear_ruler();
draw_ruler(loc_x, loc_y);
g_ruler_pos_x = loc_x;
g_ruler_pos_y = loc_y;
}
void
redraw_ruler(void)
{
draw_ruler(g_ruler_pos_x, g_ruler_pos_y);
}
