static gboolean
gv_rect_tool_motion_notify(GvTool *r_tool, GdkEventMotion *event)
{
GvRectTool *tool = GV_RECT_TOOL(r_tool);
if (tool->drawing)
{
/* Map pointer position to tail vertex */
gv_view_area_map_pointer(GV_TOOL(tool)->view, event->x, event->y,
&tool->v_tail.x, &tool->v_tail.y);
gv_tool_clamp_to_bounds( GV_TOOL(tool),
&tool->v_tail.x, &tool->v_tail.y );
gv_view_area_queue_draw(GV_TOOL(tool)->view);
}
if (tool->reshaping)
{
/* Map pointer position to tail vertex */
gv_view_area_map_pointer(GV_TOOL(tool)->view, event->x, event->y,
&tool->v_tail.x, &tool->v_tail.y);
gv_rect_tool_reshape( tool, tool->v_tail.x, tool->v_tail.y );
}
return FALSE;
}
static gboolean
gv_rect_tool_button_release(GvTool *r_tool, GdkEventButton *event)
{
GvRectTool *tool = GV_RECT_TOOL(r_tool);
if (event->button == 1 && tool->drawing )
{
GvShape *shape;
if (!gv_rect_tool_configure(tool)) return FALSE;
/* Map pointer position to tail vertex */
gv_view_area_map_pointer(GV_TOOL(tool)->view, event->x, event->y,
&tool->v_tail.x, &tool->v_tail.y);
gv_tool_clamp_to_bounds( GV_TOOL(tool),
&tool->v_tail.x, &tool->v_tail.y );
if( tool->v_tail.x != tool->v_head.x
&& tool->v_tail.y != tool->v_head.y )
{
/* create the new rectangle */
shape = gv_shape_new( GVSHAPE_AREA );
gv_shape_add_node( shape, 0, tool->v_tail.x, tool->v_tail.y, 0 );
gv_shape_add_node( shape, 0, tool->v_tail.x, tool->v_head.y, 0 );
gv_shape_add_node( shape, 0, tool->v_head.x, tool->v_head.y, 0 );
gv_shape_add_node( shape, 0, tool->v_head.x, tool->v_tail.y, 0 );
gv_shape_add_node( shape, 0, tool->v_tail.x, tool->v_tail.y, 0 );
gv_shapes_layer_select_new_shape( GV_SHAPES_LAYER(tool->layer),
shape );
}
tool->drawing = FALSE;
return FALSE;
}
if (event->button == 1 && tool->reshaping )
{
if (!gv_rect_tool_configure(tool)) return FALSE;
/* Reopen undo. Push a memento describing the ring addition */
gv_undo_enable();
gv_undo_open();
/* Map pointer position to tail vertex */
gv_view_area_map_pointer(GV_TOOL(tool)->view, event->x, event->y,
&tool->v_tail.x, &tool->v_tail.y);
gv_rect_tool_reshape( tool, tool->v_tail.x, tool->v_tail.y );
tool->reshaping = FALSE;
}
return FALSE;
}
static void
gv_point_tool_button_press(GvTool *tool, GdkEventButton *event)
{
if (event->button == 1)
{
GvVertex vertex;
if (!gv_point_tool_configure(tool)) return;
/* Get pointer location */
gv_view_area_map_pointer(GV_TOOL(tool)->view, event->x, event->y,
&vertex.x, &vertex.y);
if( !gv_tool_check_bounds( GV_TOOL(tool), vertex.x, vertex.y ) )
return;
/* Add a new point */
if( GV_IS_POINT_LAYER(GV_POINT_TOOL(tool)->layer) )
{
gv_point_layer_select_new_point(
GV_POINT_LAYER(GV_POINT_TOOL(tool)->layer),
&vertex);
}
else
{
GvShape *new_point;
new_point = gv_shape_new( GVSHAPE_POINT );
gv_shape_set_xyz( new_point, 0, 0, vertex.x, vertex.y, 0.0 );
gv_shapes_layer_select_new_shape(
GV_SHAPES_LAYER(GV_POINT_TOOL(tool)->layer),
new_point );
}
}
}
static void
gv_rotate_tool_motion_notify(GvTool *r_tool, GdkEventMotion *event)
{
GvRotateTool *tool = GV_ROTATE_TOOL(r_tool);
GvShape *wrk_shape;
if (tool->rrmode == RRMODE_DISPLAY )
return;
wrk_shape = gv_shape_copy(tool->original);
/* Map pointer position to tail vertex */
gv_view_area_map_pointer(GV_TOOL(tool)->view, event->x, event->y,
&tool->v_tail.x, &tool->v_tail.y);
/* Compute rotation from base. */
if( tool->rrmode == RRMODE_ROTATE
|| tool->rrmode == RRMODE_ROTATESCALE )
{
double dx = tool->v_tail.x - tool->v_pivot.x;
double dy = tool->v_tail.y - tool->v_pivot.y;
if( fabs(dy) < fabs(dx)/1000000.0 )
tool->rotation = M_PI/2;
else
tool->rotation = atan(fabs(dx/dy));
if( dy < 0.0 && dx >= 0.0 )
tool->rotation = M_PI - tool->rotation;
else if( dy >= 0.0 && dx < 0.0 )
tool->rotation = -tool->rotation;
else if( dy < 0.0 && dx < 0.0 )
tool->rotation -= M_PI;
tool->rotation = (tool->rotation / M_PI) * 180;
gv_shape_rotate( wrk_shape, tool->rotation );
}
/* Compute Scaling from base. */
if( tool->rrmode == RRMODE_SCALE
|| tool->rrmode == RRMODE_ROTATESCALE )
{
double dx, dy, old_length, new_length;
dx = tool->v_tail.x - tool->v_pivot.x;
dy = tool->v_tail.y - tool->v_pivot.y;
new_length = sqrt(dx*dx + dy*dy);
dx = tool->v_head.x - tool->v_pivot.x;
dy = tool->v_head.y - tool->v_pivot.y;
old_length = sqrt(dx*dx + dy*dy);
tool->scaling = new_length / old_length;
gv_shape_scale( wrk_shape, tool->scaling );
}
/* Apply to the shapes object ... this will create an undo step */
gv_shapes_replace_shapes( tool->layer->data, 1, &(tool->shape_id),
&wrk_shape, FALSE );
gv_view_area_queue_draw(GV_TOOL(tool)->view);
}
static void
gv_rotate_tool_button_press(GvTool *r_tool, GdkEventButton *event)
{
GvRotateTool *tool = GV_ROTATE_TOOL(r_tool);
if( event->state & (GDK_CONTROL_MASK|GDK_SHIFT_MASK) )
return;
/* -------------------------------------------------------------------- */
/* Have we selected an active control point on the scale/rotate */
/* dohickey? */
/* -------------------------------------------------------------------- */
if( tool->rrmode == RRMODE_DISPLAY && tool->shape_id != -1 )
{
gv_view_area_map_pointer(GV_TOOL(tool)->view, event->x, event->y,
&tool->v_head.x, &tool->v_head.y);
/*
** Is this location a hit on an arrow head?
*/
tool->rrmode =
gv_rotate_tool_classify_hit( tool, tool->v_head.x, tool->v_head.y );
/*
** Copy the original state of this shape, and disable undo till we are
** done.
*/
if( tool->rrmode != RRMODE_DISPLAY )
{
if( event->button != 1 )
tool->rrmode = RRMODE_ROTATESCALE;
tool->original = gv_shape_copy(
gv_shapes_get_shape( tool->layer->data, tool->shape_id ));
gv_undo_close();
gv_undo_disable();
}
}
/* -------------------------------------------------------------------- */
/* Are we selecting a shape? Note, currently we cannot clear */
/* our selection in resize/rotate mode - should we be able to? */
/* -------------------------------------------------------------------- */
if (event->button == 1 && tool->rrmode == RRMODE_DISPLAY )
{
int shape_id;
if (!gv_rotate_tool_configure(tool)) return;
if (gv_shape_layer_pick_shape(GV_SHAPE_LAYER(tool->layer),
GV_TOOL(tool)->view,
event->x, event->y, &shape_id))
{
GvShape *shape;
/* Is the shape rotatable? */
shape = gv_shapes_get_shape( tool->layer->data, shape_id );
if( TRUE )
{
gv_shape_layer_clear_selection(
GV_SHAPE_LAYER(tool->layer));
gv_shape_layer_select_shape(
GV_SHAPE_LAYER(tool->layer), shape_id);
tool->shape_id = shape_id;
gv_view_area_queue_draw(GV_TOOL(tool)->view);
}
}
return;
}
}
static gboolean
gv_rect_tool_button_press(GvTool *r_tool, GdkEventButton *event)
{
GvRectTool *tool = GV_RECT_TOOL(r_tool);
if (event->button == 1 && !tool->drawing )
{
GvNodeInfo edit_node;
int before, shape_id, is_rectangle = FALSE;
if (!gv_rect_tool_configure(tool)) return FALSE;
if (gv_shape_layer_pick_shape(GV_SHAPE_LAYER(tool->layer),
GV_TOOL(tool)->view,
event->x, event->y, &shape_id))
{
GvShape *shape;
/* Is the shape a rectangle? */
shape = gv_shapes_get_shape( tool->layer->data, shape_id );
if( shape != NULL
&& gv_shape_type(shape) == GVSHAPE_AREA
&& gv_shape_get_rings( shape ) == 1
&& gv_shape_get_nodes( shape, 0 ) == 5 )
{
gvgeocoord x1, y1, x2, y2;
x1 = gv_shape_get_x(shape,0,0);
y1 = gv_shape_get_y(shape,0,0);
x2 = gv_shape_get_x(shape,0,2);
y2 = gv_shape_get_y(shape,0,2);
tool->winding = 1;
is_rectangle = gv_shape_get_x(shape,0,1) == x1
&& gv_shape_get_y(shape,0,1) == y2
&& gv_shape_get_x(shape,0,3) == x2
&& gv_shape_get_y(shape,0,3) == y1
&& gv_shape_get_x(shape,0,4) == x1
&& gv_shape_get_y(shape,0,4) == y1;
if( !is_rectangle )
{
tool->winding = 0;
is_rectangle = gv_shape_get_x(shape,0,1) == x2
&& gv_shape_get_y(shape,0,1) == y1
&& gv_shape_get_x(shape,0,3) == x1
&& gv_shape_get_y(shape,0,3) == y2
&& gv_shape_get_x(shape,0,4) == x1
&& gv_shape_get_y(shape,0,4) == y1;
}
if( is_rectangle )
{
gv_shape_layer_clear_selection(
GV_SHAPE_LAYER(tool->layer));
gv_shape_layer_select_shape(
GV_SHAPE_LAYER(tool->layer), shape_id);
}
}
}
/* Is the user selecting an existing rectangles edge/corner? */
if (is_rectangle
&& gv_shape_layer_pick_node(GV_SHAPE_LAYER(tool->layer),
GV_TOOL(tool)->view,
event->x, event->y, &before,
&edit_node) )
{
if( tool->winding == 0 )
{
if( before )
edit_node.node_id = 5 - edit_node.node_id;
else
edit_node.node_id = 4 - edit_node.node_id;
}
if( before && edit_node.node_id == 1 )
tool->picked = PICK_SIDE_LEFT;
else if( before && edit_node.node_id == 2 )
tool->picked = PICK_SIDE_BOTTOM;
else if( before && edit_node.node_id == 3 )
tool->picked = PICK_SIDE_RIGHT;
else if( before && edit_node.node_id == 4 )
tool->picked = PICK_SIDE_TOP;
else if( edit_node.node_id == 0 )
tool->picked = PICK_CORNER_TOPLEFT;
else if( edit_node.node_id == 1 )
tool->picked = PICK_CORNER_BOTTOMLEFT;
else if( edit_node.node_id == 2 )
tool->picked = PICK_CORNER_BOTTOMRIGHT;
else if( edit_node.node_id == 3 )
tool->picked = PICK_CORNER_TOPRIGHT;
else if( edit_node.node_id == 4 )
tool->picked = PICK_CORNER_TOPLEFT;
else
{
g_warning( "Yikes! What node is this?" );
return FALSE;
}
tool->reshaping = TRUE;
tool->shape_id = edit_node.shape_id;
/* Close down undo. A single operation describing the new
ring will be pushed to undo when drawing stops. */
gv_undo_close();
gv_undo_disable();
return FALSE;
}
/* Map pointer position to tail vertex */
gv_view_area_map_pointer(GV_TOOL(tool)->view, event->x, event->y,
&tool->v_tail.x, &tool->v_tail.y);
if( gv_tool_check_bounds( GV_TOOL(tool),
tool->v_tail.x, tool->v_tail.y ) )
{
/* Start a new rect */
tool->drawing = TRUE;
tool->v_head = tool->v_tail;
}
}
return FALSE;
}
