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//////////////////////////////////////////////////////////////////////////
//
// pgAdmin III - PostgreSQL Tools
//
// Copyright (C) 2002 - 2014, The pgAdmin Development Team
// This software is released under the PostgreSQL Licence
//
// hdConnectionCreationTool.cpp - A Tool that allow to create a connection figure between two figures
//
//////////////////////////////////////////////////////////////////////////
#include "pgAdmin3.h"
// wxWindows headers
#include <wx/wx.h>
// App headers
#include "hotdraw/tools/hdConnectionCreationTool.h"
#include "hotdraw/tools/hdSelectionTool.h"
#include "hotdraw/main/hdDrawingView.h"
hdConnectionCreationTool::hdConnectionCreationTool(hdDrawingView *view, hdLineConnection *figure):
hdAbstractTool(view)
{
toolConnection = figure;
toolConnection->disconnectStart();
toolConnection->disconnectEnd();
handle = NULL;
numClicks = 0;
dragged = false;
}
hdConnectionCreationTool::~hdConnectionCreationTool()
{
}
void hdConnectionCreationTool::mouseDrag(hdMouseEvent &event)
{
if(handle && event.LeftIsDown())
{
dragged = true;
handle->invokeStep(event, event.getView());
}
}
void hdConnectionCreationTool::mouseDown(hdMouseEvent &event)
{
hdAbstractTool::mouseDown(event);
if(event.LeftDown())
{
numClicks++;
int x = event.getScrolledPosX(), y = event.getScrolledPosY();
hdDrawingView *view = event.getView();
hdIFigure *figure = view->getDrawing()->findFigure(view->getIdx(), x, y);
if(figure)
{
if(numClicks == 1) //first mouse click to select start/end figure
{
toolConnection->setEndPoint(view->getIdx(), hdPoint(x, y));
toolConnection->setStartPoint(view->getIdx(), hdPoint(x, y));
toolConnection->connectStart(figure->connectorAt(view->getIdx(), x, y));
toolConnection->updateConnection(view->getIdx());
view->editor()->addDiagramFigure(view->getIdx(), toolConnection);
view->getDrawing()->clearSelection();
view->getDrawing()->addToSelection(toolConnection);
handle = toolConnection->getEndHandle();
}
else if(numClicks > 1) //second mouse click to select end figure only
{
toolConnection->setEndPoint(view->getIdx(), hdPoint(x, y));
toolConnection->updateConnection(event.getView()->getIdx());
}
}
else
{
event.getView()->setTool(new hdSelectionTool(event.getView()));
}
}
}
void hdConnectionCreationTool::mouseUp(hdMouseEvent &event)
{
if(event.LeftUp())
{
//Hack to allow one click and drag creation of connections
if(handle)
{
if(!dragged && numClicks == 1) //mouse haven't be dragged and is first click of mouse at this tool
{
toolConnection->setEndPoint(event.getView()->getIdx(), event.GetPosition());
toolConnection->updateConnection(event.getView()->getIdx());
}
else
{
handle->invokeEnd(event, event.getView());
}
}
if((toolConnection->getEndConnector() == NULL && numClicks > 1) || (toolConnection->getEndConnector() == NULL && dragged)) //Delete connection only if a second click a connection figures isn't found
{
//check if exists at drawing because automatically integrity check
if(event.getView()->getDrawing()->includes(toolConnection))
event.getView()->getDrawing()->remove(toolConnection);
event.getView()->getDrawing()->clearSelection();
toolConnection->disconnectStart();
toolConnection->disconnectEnd();
event.getView()->editor()->deleteModelFigure(toolConnection);
}
}
if(dragged || numClicks > 1) //if drag to select a figure or is second or higher click (to select end figure) then this tool ends.
{
event.getView()->setTool(new hdSelectionTool(event.getView()));
}
else if(!dragged && numClicks == 1) //if not dragged before and is first click then allow to select end, disconnecting it
{
toolConnection->disconnectEnd();
}
}
void hdConnectionCreationTool::mouseMove(hdMouseEvent &event)
{
int x = event.GetPosition().x, y = event.GetPosition().y;
hdDrawingView *view = event.getView();
hdIFigure *figure = view->getDrawing()->findFigure(view->getIdx(), x, y);
if(figure)
{
view->SetCursor(wxCursor(wxCURSOR_PENCIL));
}
else
{
view->SetCursor(wxCursor(wxCURSOR_CROSS));
}
if(toolConnection && handle && numClicks > 0)
{
handle->invokeStep(event, view);
}
}
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