neofx-zoomedit/ToolGrab.cpp

#include "ToolGrab.h"

ToolGrab::ToolGrab(EditManager *editManager) : sidebar(editManager) {
  this->editManager = editManager;
  
  pressed = false;
  
  image = gtk_image_new_from_stock(GTK_STOCK_MISSING_IMAGE, GTK_ICON_SIZE_BUTTON);
  g_object_ref_sink(G_OBJECT(image));
}

ToolGrab::~ToolGrab() {
  g_object_unref(G_OBJECT(image));
}

void ToolGrab::activate() {
  pressed = false;
  editManager->highlightHoveredObject();
  editManager->setSelectedObject(NULL);
}

bool ToolGrab::buttonPress(unsigned int button, const Vertex *v) {
  if(button != 1 || !editManager->getHoveredObject())
    return false;
  
  pressed = true;
  grabbedVertex = *v;
  
  editManager->setSelectedObject(editManager->getHoveredObject());
  
  editManager->redraw();
  sidebar.update();
  
  return true;
}

bool ToolGrab::buttonRelease(unsigned int button, const Vertex *v) {
  if(button != 1)
    return false;
  
  pressed = false;
  
  editManager->setSelectedObject(NULL);
  
  editManager->redraw();
  sidebar.update();
  
  return true;
}

bool ToolGrab::motion(const Vertex *v) {
  if(!pressed) {
    editManager->highlightHoveredObject();
    return true;
  }

  if(!v)
    return false;
  
  editManager->getSelectedObject()->move(v->getX()-grabbedVertex.getX(), v->getY()-grabbedVertex.getY());
  
  grabbedVertex = *v;
  
  return true;
}