Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses
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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose: Tool used for picking entities. This is used anywhere a field that
// contains an entity name is found.
//
// Left click - single select entity
// +Ctrl - multiselect a single entity
//
//=============================================================================//
#include "stdafx.h"
#include "resource.h"
#include "ToolPickEntity.h"
#include "MapViewLogical.h"
#include "MapView3D.h"
// memdbgon must be the last include file in a .cpp file!!!
#include <tier0/memdbgon.h>
//-----------------------------------------------------------------------------
// Purpose: Constructor. Inits data members.
//-----------------------------------------------------------------------------
CToolPickEntity::CToolPickEntity(void)
{
m_pNotifyTarget = NULL;
m_bAllowMultiSelect = false;
}
//-----------------------------------------------------------------------------
// Purpose: Destructor.
//-----------------------------------------------------------------------------
CToolPickEntity::~CToolPickEntity(void)
{
}
//-----------------------------------------------------------------------------
// Purpose: Enables or disables multiselect for this tool.
//-----------------------------------------------------------------------------
void CToolPickEntity::AllowMultiSelect(bool bAllow)
{
m_bAllowMultiSelect = bAllow;
//
// Shouldn't ever happen, but you never know.
//
if ((!bAllow) && (m_Entities.Count() > 1))
{
CMapEntity *pEntity = m_Entities[0].pEntity;
DeselectAll();
SelectEntity(pEntity);
}
}
//-----------------------------------------------------------------------------
// Purpose: Called when the tool is deactivated.
// Input : eNewTool - The ID of the tool that is being activated.
//-----------------------------------------------------------------------------
void CToolPickEntity::OnDeactivate()
{
DeselectAll();
}
//-----------------------------------------------------------------------------
// Purpose: Handles the left mouse button up message in the 3D view.
// Input : pView - The view that the event occurred in.
// nFlags - Flags per the Windows mouse message.
// point - Point in client coordinates where the event occurred.
// Output : Returns true if the message was handled by the tool, false if not.
//-----------------------------------------------------------------------------
bool CToolPickEntity::OnLMouseUp3D(CMapView3D *pView, UINT nFlags, const Vector2D &vPoint)
{
return true;
}
//-----------------------------------------------------------------------------
// Purpose: Handles the left mouse button up message in the 3D view.
// Input : pView - The view that the event occurred in.
// nFlags - Flags per the Windows mouse message.
// point - Point in client coordinates where the event occurred.
// Output : Returns true if the message was handled by the tool, false if not.
//-----------------------------------------------------------------------------
bool CToolPickEntity::OnLMouseDown3D(CMapView3D *pView, UINT nFlags, const Vector2D &vPoint)
{
bool bControl = ((nFlags & MK_CONTROL) != 0);
unsigned long uEntity;
CMapClass *pObject = pView->NearestObjectAt( vPoint, uEntity);
if (pObject != NULL)
{
CMapClass *pSelObject = pObject->PrepareSelection(selectObjects);
CMapEntity *pEntity = dynamic_cast <CMapEntity *>(pSelObject);
if (pEntity != NULL)
{
//
// We clicked on an entity.
//
if ((!m_bAllowMultiSelect) || (!bControl))
{
// Single select.
DeselectAll();
SelectEntity(pEntity);
}
else
{
// Multiselect.
CycleSelectEntity(pEntity);
}
if (m_pNotifyTarget)
{
m_pNotifyTarget->OnNotifyPickEntity(this);
}
}
}
return true;
}
//-----------------------------------------------------------------------------
// Purpose: Handles the left mouse button up message in the 3D view.
// Input : pView - The view that the event occurred in.
// nFlags - Flags per the Windows mouse message.
// point - Point in client coordinates where the event occurred.
// Output : Returns true if the message was handled by the tool, false if not.
//-----------------------------------------------------------------------------
bool CToolPickEntity::OnLMouseDownLogical(CMapViewLogical *pView, UINT nFlags, const Vector2D &vPoint)
{
bool bControl = ((nFlags & MK_CONTROL) != 0);
HitInfo_t hitData;
int nHits = pView->ObjectsAt( vPoint, &hitData, 1 );
if ( ( nHits > 0 ) && hitData.pObject )
{
CMapClass *pSelObject = hitData.pObject->PrepareSelection( selectObjects );
CMapEntity *pEntity = dynamic_cast <CMapEntity *>( pSelObject );
if (pEntity != NULL)
{
//
// We clicked on an entity.
//
if ((!m_bAllowMultiSelect) || (!bControl))
{
// Single select.
DeselectAll();
SelectEntity(pEntity);
}
else
{
// Multiselect.
CycleSelectEntity(pEntity);
}
if (m_pNotifyTarget)
{
m_pNotifyTarget->OnNotifyPickEntity(this);
}
}
}
return true;
}
//-----------------------------------------------------------------------------
// Purpose: Handles the left mouse button double click message in the 3D view.
// Input : pView - The view that the event occurred in.
// nFlags - Flags per the Windows mouse message.
// point - Point in client coordinates where the event occurred.
// Output : Returns true if the message was handled by the tool, false if not.
//-----------------------------------------------------------------------------
bool CToolPickEntity::OnLMouseDblClk3D(CMapView3D *pView, UINT nFlags, const Vector2D &vPoint)
{
return true;
}
//-----------------------------------------------------------------------------
// Purpose: Handles the right mouse button up message in the 3D view.
// Input : pView - The view that the event occurred in.
// nFlags - Flags per the Windows mouse message.
// point - Point in client coordinates where the event occurred.
// Output : Returns true if the message was handled by the tool, false if not.
//-----------------------------------------------------------------------------
bool CToolPickEntity::OnRMouseUp3D(CMapView3D *pView, UINT nFlags, const Vector2D &vPoint)
{
return true;
}
//-----------------------------------------------------------------------------
// Purpose: Handles the mouse button up message in the 3D view.
// Input : pView - The view that the event occurred in.
// nFlags - Flags per the Windows mouse message.
// point - Point in client coordinates where the event occurred.
// Output : Returns true if the message was handled by the tool, false if not.
//-----------------------------------------------------------------------------
bool CToolPickEntity::OnRMouseDown3D(CMapView3D *pView, UINT nFlags, const Vector2D &vPoint)
{
return true;
}
//-----------------------------------------------------------------------------
// Purpose: Handles the mouse move message in the 3D view.
// Input : pView - The view that the event occurred in.
// nFlags - Flags per the Windows mouse message.
// point - Point in client coordinates where the event occurred.
// Output : Returns true if the message was handled by the tool, false if not.
//-----------------------------------------------------------------------------
bool CToolPickEntity::OnMouseMove3D(CMapView3D *pView, UINT nFlags, const Vector2D &vPoint)
{
SetEyedropperCursor();
return true;
}
bool CToolPickEntity::OnMouseMoveLogical(CMapViewLogical *pView, UINT nFlags, const Vector2D &vPoint)
{
SetEyedropperCursor();
return true;
}
//-----------------------------------------------------------------------------
// Purpose: Sets the cursor to the eyedropper cursor.
//-----------------------------------------------------------------------------
void CToolPickEntity::SetEyedropperCursor(void)
{
static HCURSOR hcurEyedropper = NULL;
if (!hcurEyedropper)
{
hcurEyedropper = LoadCursor(AfxGetInstanceHandle(), MAKEINTRESOURCE(IDC_EYEDROPPER));
}
SetCursor(hcurEyedropper);
}
//-----------------------------------------------------------------------------
// Purpose:
// Input : pEntity -
//-----------------------------------------------------------------------------
void CToolPickEntity::CycleSelectEntity(CMapEntity *pEntity)
{
int nIndex = FindEntity(pEntity);
if (nIndex != -1)
{
//
// The entity is in our list, update its selection state.
//
if (m_Entities[nIndex].eState == EntityState_Partial)
{
DeselectEntity(nIndex);
}
else if (m_Entities[nIndex].eState == EntityState_Select)
{
if (m_Entities[nIndex].eOriginalState == EntityState_Partial)
{
m_Entities[nIndex].eState = EntityState_Partial;
//pEntity->SetSelectionState(SELECT_MULTI_PARTIAL);
}
else
{
DeselectEntity(nIndex);
}
}
else if (m_Entities[nIndex].eState == EntityState_None)
{
m_Entities[nIndex].eState = EntityState_Select;
//pEntity->SetSelectionState(SELECT_NORMAL);
}
}
else
{
//
// The entity is not in our list, add it.
//
AddToList(pEntity, EntityState_Select);
//pEntity->SetSelectionState(SELECT_NORMAL);
}
}
//-----------------------------------------------------------------------------
// Purpose: Sets the fully selected and partially selected entities for the picker.
// Input : EntityListFull -
// EntityListPartial -
//-----------------------------------------------------------------------------
void CToolPickEntity::SetSelectedEntities(CMapEntityList &EntityListFull, CMapEntityList &EntityListPartial)
{
m_Entities.RemoveAll();
for (int i = 0; i < EntityListFull.Count(); i++)
{
CMapEntity *pEntity = EntityListFull.Element(i);
AddToList(pEntity, EntityState_Select);
pEntity->SetSelectionState(SELECT_NORMAL);
}
for (int i = 0; i < EntityListPartial.Count(); i++)
{
CMapEntity *pEntity = EntityListPartial.Element(i);
AddToList(pEntity, EntityState_Partial);
pEntity->SetSelectionState(SELECT_MULTI_PARTIAL);
}
}
//-----------------------------------------------------------------------------
// Purpose:
// Input : pEntity -
//-----------------------------------------------------------------------------
int CToolPickEntity::FindEntity(CMapEntity *pEntity)
{
for (int i = 0; i < m_Entities.Count(); i++)
{
if (m_Entities[i].pEntity == pEntity)
{
return i;
}
}
return -1;
}
//-----------------------------------------------------------------------------
// Purpose: Clears the selection set.
//-----------------------------------------------------------------------------
void CToolPickEntity::DeselectAll(void)
{
for (int i = 0; i < m_Entities.Count(); i++)
{
m_Entities[i].pEntity->SetSelectionState(SELECT_NONE);
}
m_Entities.RemoveAll();
}
//-----------------------------------------------------------------------------
// Purpose: Selects the entity unconditionally.
// Input : pEntity - entity to select.
//-----------------------------------------------------------------------------
void CToolPickEntity::SelectEntity(CMapEntity *pEntity)
{
int nIndex = FindEntity(pEntity);
if (nIndex != -1)
{
//
// The entity is in our list, update its selection state.
//
m_Entities[nIndex].eState = EntityState_Select;
pEntity->SetSelectionState(SELECT_NORMAL);
}
else
{
//
// The entity is not in our list, add it.
//
AddToList(pEntity, EntityState_Select);
pEntity->SetSelectionState(SELECT_NORMAL);
}
}
//-----------------------------------------------------------------------------
// Purpose: Deselects the given entity.
//-----------------------------------------------------------------------------
void CToolPickEntity::DeselectEntity(CMapEntity *pEntity)
{
int nIndex = FindEntity(pEntity);
if (nIndex != -1)
{
DeselectEntity(nIndex);
}
}
//-----------------------------------------------------------------------------
// Purpose: Removes the entity at the given index from the selection set.
// Input : nIndex - Index of the entity in the selection list.
//-----------------------------------------------------------------------------
void CToolPickEntity::DeselectEntity(int nIndex)
{
Assert(m_Entities.IsValidIndex(nIndex));
if (m_Entities.IsValidIndex(nIndex))
{
if (m_Entities[nIndex].eOriginalState != EntityState_Partial)
{
m_Entities[nIndex].pEntity->SetSelectionState(SELECT_NONE);
//
// Remove the entity from our list.
//
RemoveFromList(nIndex);
}
else
{
//
// Just set the state to deselected so we can cycle back to partial selection.
//
m_Entities[nIndex].pEntity->SetSelectionState(SELECT_NONE);
m_Entities[nIndex].eState = EntityState_None;
}
}
}
//-----------------------------------------------------------------------------
// Purpose:
// Input : pEntity -
// eState -
//-----------------------------------------------------------------------------
void CToolPickEntity::AddToList(CMapEntity *pEntity, EntityState_t eState)
{
int nIndex = m_Entities.AddToTail();
m_Entities[nIndex].pEntity = pEntity;
m_Entities[nIndex].eState = eState;
m_Entities[nIndex].eOriginalState = eState;
}
//-----------------------------------------------------------------------------
// Purpose:
// Input : nIndex -
//-----------------------------------------------------------------------------
void CToolPickEntity::RemoveFromList(int nIndex)
{
Assert(m_Entities.IsValidIndex(nIndex));
if (m_Entities.IsValidIndex(nIndex))
{
m_Entities.FastRemove(nIndex);
}
}
//-----------------------------------------------------------------------------
// Purpose: Returns lists of fully selected and partially selected entities.
//-----------------------------------------------------------------------------
void CToolPickEntity::GetSelectedEntities(CMapEntityList &EntityListFull, CMapEntityList &EntityListPartial)
{
EntityListFull.RemoveAll();
EntityListPartial.RemoveAll();
for (int i = 0; i < m_Entities.Count(); i++)
{
if (m_Entities[i].eState == EntityState_Select)
{
EntityListFull.AddToTail(m_Entities[i].pEntity);
}
else if (m_Entities[i].eState == EntityState_Partial)
{
EntityListPartial.AddToTail(m_Entities[i].pEntity);
}
}
}