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; }