766 lines
19 KiB
C++
766 lines
19 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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// $NoKeywords: $
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//===========================================================================//
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#include <vgui/IScheme.h>
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#include <vgui/Cursor.h>
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#include <vgui/IInput.h>
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#include <vgui_controls/Splitter.h>
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#include "tier1/KeyValues.h"
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#include <limits.h>
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// memdbgon must be the last include file in a .cpp file!!!
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#include "tier0/memdbgon.h"
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using namespace vgui;
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enum
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{
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SPLITTER_HANDLE_WIDTH = 4
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};
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//-----------------------------------------------------------------------------
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// Splitter handle
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//-----------------------------------------------------------------------------
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namespace vgui
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{
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class SplitterHandle : public Panel
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{
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DECLARE_CLASS_SIMPLE( SplitterHandle, Panel );
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public:
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SplitterHandle( Splitter *parent, const char *name, SplitterMode_t mode, int nIndex );
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~SplitterHandle();
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virtual void ApplySchemeSettings( IScheme *pScheme );
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virtual void OnMousePressed( MouseCode code );
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virtual void OnMouseReleased( MouseCode code );
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virtual void OnCursorMoved( int x, int y );
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virtual void OnMouseDoublePressed( MouseCode code );
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private:
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SplitterMode_t m_nMode;
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int m_nIndex;
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bool m_bDragging;
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};
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} // end namespace vgui
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//-----------------------------------------------------------------------------
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// Purpose: Constructor
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//-----------------------------------------------------------------------------
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SplitterHandle::SplitterHandle( Splitter *parent, const char *name, SplitterMode_t mode, int nIndex ) : BaseClass( parent, name )
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{
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int w, h;
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parent->GetSize( w, h );
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if ( mode == SPLITTER_MODE_HORIZONTAL )
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{
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SetSize( w, SPLITTER_HANDLE_WIDTH );
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SetCursor( dc_sizens );
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}
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else
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{
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SetSize( SPLITTER_HANDLE_WIDTH, h );
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SetCursor( dc_sizewe );
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}
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SetVisible( true );
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SetPaintBackgroundEnabled( false );
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SetPaintEnabled( false );
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SetPaintBorderEnabled( true );
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m_bDragging = false;
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m_nIndex = nIndex;
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m_nMode = mode;
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}
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//-----------------------------------------------------------------------------
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// Purpose: Destructor
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//-----------------------------------------------------------------------------
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SplitterHandle::~SplitterHandle()
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{
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}
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//-----------------------------------------------------------------------------
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// Scheme settings
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//-----------------------------------------------------------------------------
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void SplitterHandle::ApplySchemeSettings(IScheme *pScheme)
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{
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// Cache off background color stored in SetSplitterColor
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Color c = GetBgColor();
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SetBorder(pScheme->GetBorder("ButtonDepressedBorder"));
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BaseClass::ApplySchemeSettings(pScheme);
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SetBgColor( c );
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}
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//-----------------------------------------------------------------------------
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// Capture mouse when dragging
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//-----------------------------------------------------------------------------
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void SplitterHandle::OnMousePressed(MouseCode code)
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{
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if ( !m_bDragging )
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{
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input()->SetMouseCapture(GetVPanel());
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m_bDragging = true;
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}
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}
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//-----------------------------------------------------------------------------
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// Release mouse capture when finished dragging
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//-----------------------------------------------------------------------------
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void SplitterHandle::OnMouseReleased(MouseCode code)
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{
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if ( m_bDragging )
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{
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input()->SetMouseCapture(NULL);
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m_bDragging = false;
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}
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}
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//-----------------------------------------------------------------------------
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// While dragging, update the splitter position
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//-----------------------------------------------------------------------------
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void SplitterHandle::OnCursorMoved(int x, int y)
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{
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if (m_bDragging)
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{
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input()->GetCursorPos( x, y );
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Splitter *pSplitter = assert_cast<Splitter*>( GetParent() );
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pSplitter->ScreenToLocal( x,y );
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pSplitter->SetSplitterPosition( m_nIndex, (m_nMode == SPLITTER_MODE_HORIZONTAL) ? y : x );
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}
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}
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//-----------------------------------------------------------------------------
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// Double-click: make both panels on either side of the splitter equal size
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//-----------------------------------------------------------------------------
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void SplitterHandle::OnMouseDoublePressed( MouseCode code )
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{
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Splitter *pSplitter = assert_cast<Splitter*>( GetParent() );
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pSplitter->EvenlyRespaceSplitters();
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}
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//-----------------------------------------------------------------------------
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// Returns a panel that chains user configs
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//-----------------------------------------------------------------------------
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namespace vgui
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{
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class SplitterChildPanel : public EditablePanel
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{
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DECLARE_CLASS_SIMPLE( SplitterChildPanel, EditablePanel );
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public:
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SplitterChildPanel( Panel *parent, const char *panelName ) : BaseClass( parent, panelName )
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{
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SetPaintBackgroundEnabled( false );
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SetPaintEnabled( false );
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SetPaintBorderEnabled( false );
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}
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virtual ~SplitterChildPanel() {}
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// Children may have user config settings
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bool HasUserConfigSettings()
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{
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return true;
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}
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};
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} // end namespace vgui
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//-----------------------------------------------------------------------------
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//
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// Splitter panel
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//
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//-----------------------------------------------------------------------------
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vgui::Panel *Splitter_V_Factory()
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{
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return new Splitter( NULL, NULL, SPLITTER_MODE_VERTICAL, 1 );
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}
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vgui::Panel *Splitter_H_Factory()
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{
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return new Splitter( NULL, NULL, SPLITTER_MODE_HORIZONTAL, 1 );
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}
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//-----------------------------------------------------------------------------
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// Purpose: Constructor
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//-----------------------------------------------------------------------------
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Splitter::Splitter( Panel *parent, const char *name, SplitterMode_t mode, int nCount ) : BaseClass( parent, name )
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{
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Assert( nCount >= 1 );
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m_Mode = mode;
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SetPaintBackgroundEnabled( false );
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SetPaintEnabled( false );
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SetPaintBorderEnabled( false );
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RecreateSplitters( nCount );
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EvenlyRespaceSplitters();
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}
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//-----------------------------------------------------------------------------
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// Purpose: Destructor
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//-----------------------------------------------------------------------------
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Splitter::~Splitter()
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{
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m_Splitters.RemoveAll();
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}
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void Splitter::RecreateSplitters( int nCount )
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{
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int i;
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int c = m_Splitters.Count();
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for ( i = 0; i < c; ++i )
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{
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delete m_Splitters[ i ].m_pPanel;
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delete m_Splitters[ i ].m_pHandle;
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}
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m_Splitters.RemoveAll();
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for ( i = 0; i < (nCount + 1); ++i )
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{
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char pBuffer[512];
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Q_snprintf( pBuffer, sizeof(pBuffer), "child%d", i );
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int nIndex = m_Splitters.AddToTail( );
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SplitterChildPanel *pEditablePanel = new SplitterChildPanel( this, pBuffer );
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m_Splitters[nIndex].m_pPanel = pEditablePanel;
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m_Splitters[nIndex].m_bLocked = false;
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m_Splitters[nIndex].m_nLockedSize = 0;
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}
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// We do this in 2 loops so that the first N children are actual child panels
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for ( i = 0; i < nCount; ++i )
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{
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SplitterHandle *pHandle = new SplitterHandle( this, "SplitterHandle", m_Mode, i );
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m_Splitters[i].m_pHandle = pHandle;
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pHandle->MoveToFront();
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}
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m_Splitters[nCount].m_pHandle = NULL;
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}
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//-----------------------------------------------------------------------------
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// Sets the splitter color
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//-----------------------------------------------------------------------------
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void Splitter::SetSplitterColor( Color c )
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{
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int nCount = m_Splitters.Count() - 1;
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if ( c.a() != 0 )
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{
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for ( int i = 0; i < nCount; ++i )
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{
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m_Splitters[i].m_pHandle->SetBgColor( c );
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m_Splitters[i].m_pHandle->SetPaintBackgroundEnabled( true );
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}
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}
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else
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{
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for ( int i = 0; i < nCount; ++i )
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{
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m_Splitters[i].m_pHandle->SetPaintBackgroundEnabled( false );
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}
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}
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}
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//-----------------------------------------------------------------------------
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// Enables borders on the splitters
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//-----------------------------------------------------------------------------
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void Splitter::EnableBorders( bool bEnable )
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{
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int nCount = m_Splitters.Count() - 1;
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for ( int i = 0; i < nCount; ++i )
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{
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m_Splitters[i].m_pHandle->SetPaintBorderEnabled( bEnable );
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}
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}
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//-----------------------------------------------------------------------------
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// controls splitters
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//-----------------------------------------------------------------------------
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int Splitter::GetSplitterCount() const
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{
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return m_Splitters.Count() - 1;
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}
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//-----------------------------------------------------------------------------
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// controls splitters
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//-----------------------------------------------------------------------------
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int Splitter::GetSubPanelCount() const
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{
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return m_Splitters.Count();
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}
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//-----------------------------------------------------------------------------
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// Purpose: Applies resouce settings
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//-----------------------------------------------------------------------------
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void Splitter::ApplySettings(KeyValues *inResourceData)
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{
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BaseClass::ApplySettings(inResourceData);
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// Look for splitter positions
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int nSplitterCount = GetSplitterCount();
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for ( int i = 0; i < nSplitterCount; ++i )
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{
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char pBuffer[512];
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Q_snprintf( pBuffer, sizeof(pBuffer), "splitter%d", i );
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int nSplitterPos = inResourceData->GetInt( pBuffer , -1 );
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if ( nSplitterPos >= 0 )
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{
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SetSplitterPosition( i, nSplitterPos );
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}
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}
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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int Splitter::GetPosRange()
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{
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int w, h;
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GetSize( w, h );
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int nPosRange = (m_Mode == SPLITTER_MODE_HORIZONTAL) ? h : w;
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return nPosRange;
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}
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//-----------------------------------------------------------------------------
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// Locks the size of a particular child in pixels.
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//-----------------------------------------------------------------------------
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void Splitter::LockChildSize( int nChildIndex, int nSize )
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{
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Assert( nChildIndex < m_Splitters.Count() );
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SplitterInfo_t &info = m_Splitters[nChildIndex];
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nSize += SPLITTER_HANDLE_WIDTH;
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if ( !info.m_bLocked || (info.m_nLockedSize != nSize) )
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{
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float flPrevPos = (nChildIndex > 0) ? m_Splitters[nChildIndex-1].m_flPos : 0.0f;
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float flOldSize = info.m_flPos - flPrevPos;
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float flDelta = nSize - flOldSize;
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int nCount = m_Splitters.Count();
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for ( int i = nChildIndex; i < nCount-1; ++i )
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{
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m_Splitters[i].m_flPos += flDelta;
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}
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m_Splitters[nCount-1].m_flPos = GetPosRange();
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info.m_bLocked = true;
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info.m_nLockedSize = nSize;
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InvalidateLayout();
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}
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}
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void Splitter::UnlockChildSize( int nChildIndex )
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{
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Assert( nChildIndex < m_Splitters.Count() );
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SplitterInfo_t &info = m_Splitters[nChildIndex];
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if ( info.m_bLocked )
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{
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info.m_bLocked = false;
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float flPrevPos = (nChildIndex > 0) ? m_Splitters[nChildIndex-1].m_flPos : 0.0f;
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float flBelowSize = GetPosRange() - flPrevPos;
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int nLockedSize = ComputeLockedSize( nChildIndex + 1 );
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int nUnlockedCount = 1;
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int nCount = m_Splitters.Count();
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for ( int i = nChildIndex + 1; i < nCount; ++i )
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{
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if ( !m_Splitters[i].m_bLocked )
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{
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++nUnlockedCount;
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}
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}
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float flUnlockedSize = ( flBelowSize - nLockedSize ) / nUnlockedCount;
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for ( int i = nChildIndex; i < nCount; ++i )
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{
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if ( !m_Splitters[i].m_bLocked )
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{
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m_Splitters[i].m_flPos = flPrevPos + flUnlockedSize;
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}
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else
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{
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m_Splitters[i].m_flPos = flPrevPos + m_Splitters[i].m_nLockedSize;
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}
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flPrevPos = m_Splitters[i].m_flPos;
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}
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InvalidateLayout();
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}
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}
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//-----------------------------------------------------------------------------
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// Called when size changes
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//-----------------------------------------------------------------------------
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void Splitter::OnSizeChanged( int newWide, int newTall )
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{
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BaseClass::OnSizeChanged( newWide, newTall );
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// Don't resize if it's degenerate and won't show up anyway...
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if ( newTall <= 0 || newWide <= 0 )
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return;
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int nLockedSize = 0;
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float flUnlockedSize = 0.0f;
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int nCount = m_Splitters.Count();
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float flLastPos = 0.0f;
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int nUnlockedCount = 0;
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for ( int i = 0; i < nCount; ++i )
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{
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SplitterInfo_t &info = m_Splitters[i];
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if ( info.m_bLocked )
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{
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nLockedSize += info.m_nLockedSize;
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}
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else
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{
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++nUnlockedCount;
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flUnlockedSize += info.m_flPos - flLastPos;
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}
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flLastPos = info.m_flPos;
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}
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int nNewTotalSize = (m_Mode == SPLITTER_MODE_HORIZONTAL) ? newTall : newWide;
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int nNewUnlockedSize = nNewTotalSize - nLockedSize;
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if ( nNewUnlockedSize < nUnlockedCount * SPLITTER_HANDLE_WIDTH )
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{
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nNewUnlockedSize = nUnlockedCount * SPLITTER_HANDLE_WIDTH;
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}
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float flRatio = nNewUnlockedSize / flUnlockedSize;
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float flLastPrevPos = 0.0f;
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flLastPos = 0.0f;
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for ( int i = 0; i < nCount - 1; ++i )
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{
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SplitterInfo_t &info = m_Splitters[i];
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if ( info.m_bLocked )
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{
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flLastPrevPos = info.m_flPos;
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info.m_flPos = flLastPos + info.m_nLockedSize;
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}
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else
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{
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float flNewSize = info.m_flPos - flLastPrevPos;
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flNewSize *= flRatio;
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flLastPrevPos = info.m_flPos;
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info.m_flPos = flLastPos + flNewSize;
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}
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flLastPos = info.m_flPos;
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}
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// Clamp the bottom to 1.0
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m_Splitters[nCount-1].m_flPos = nNewTotalSize;
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}
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//-----------------------------------------------------------------------------
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// Splitter position
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//-----------------------------------------------------------------------------
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int Splitter::GetSplitterPosition( int nIndex )
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{
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return (int)( m_Splitters[nIndex].m_flPos + 0.5f );
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}
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void Splitter::SetSplitterPosition( int nIndex, int nPos )
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{
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int nPosRange = GetPosRange();
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if ( nPosRange == 0 )
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return;
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// If we're locked to a sibling, move the previous sibling first
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while ( ( nIndex >= 0 ) && m_Splitters[nIndex].m_bLocked )
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{
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nPos -= m_Splitters[nIndex].m_nLockedSize;
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--nIndex;
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}
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if ( nIndex < 0 )
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return;
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// Clamp to the valid positional range
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int i;
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int nMinPos = 0;
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for ( i = 0; i < nIndex; ++i )
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{
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if ( !m_Splitters[i].m_bLocked )
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{
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nMinPos += SPLITTER_HANDLE_WIDTH;
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}
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else
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{
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nMinPos += m_Splitters[i].m_nLockedSize;
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}
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}
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int nMaxPos = nPosRange - SPLITTER_HANDLE_WIDTH;
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int c = GetSplitterCount();
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for ( i = nIndex + 1; i < c; ++i )
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{
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if ( !m_Splitters[i].m_bLocked )
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{
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nMaxPos -= SPLITTER_HANDLE_WIDTH;
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}
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else
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{
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nMaxPos -= m_Splitters[i].m_nLockedSize;
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}
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}
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nPos = clamp( nPos, nMinPos, nMaxPos );
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m_Splitters[nIndex].m_flPos = nPos;
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int p = nPos;
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for ( i = nIndex - 1 ; i >= 0; --i )
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{
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int nMinPrevPos;
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int nMaxPrevPos;
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if ( !m_Splitters[i+1].m_bLocked )
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{
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nMinPrevPos = -INT_MAX;
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nMaxPrevPos = nPos - SPLITTER_HANDLE_WIDTH;
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}
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else
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{
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nMinPrevPos = nMaxPrevPos = p - m_Splitters[i+1].m_nLockedSize;
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}
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int nCurPos = GetSplitterPosition( i );
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if ( nMaxPrevPos < nCurPos || nMinPrevPos > nCurPos )
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{
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m_Splitters[ i ].m_flPos = nMaxPrevPos;
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p = nMaxPrevPos;
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}
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else
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{
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p = m_Splitters[ i ].m_flPos;
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}
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}
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for ( i = nIndex + 1 ; i < c; ++i )
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{
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int nMinNextPos;
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int nMaxNextPos;
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if ( !m_Splitters[i].m_bLocked )
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{
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nMinNextPos = nPos + SPLITTER_HANDLE_WIDTH;
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nMaxNextPos = INT_MAX;
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}
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else
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{
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|
nMinNextPos = nMaxNextPos = nPos + m_Splitters[i].m_nLockedSize;
|
|
}
|
|
|
|
int nCurPos = GetSplitterPosition( i );
|
|
if ( nMinNextPos > nCurPos || nMaxNextPos < nCurPos )
|
|
{
|
|
m_Splitters[ i ].m_flPos = nMinNextPos;
|
|
nPos = nMinNextPos;
|
|
}
|
|
else
|
|
{
|
|
nPos = m_Splitters[ i ].m_flPos;
|
|
}
|
|
}
|
|
|
|
InvalidateLayout();
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Computes the locked size
|
|
//-----------------------------------------------------------------------------
|
|
int Splitter::ComputeLockedSize( int nStartingIndex )
|
|
{
|
|
int nLockedSize = 0;
|
|
int nCount = m_Splitters.Count();
|
|
for ( int i = nStartingIndex; i < nCount; ++i )
|
|
{
|
|
if ( m_Splitters[i].m_bLocked )
|
|
{
|
|
nLockedSize += m_Splitters[i].m_nLockedSize;
|
|
}
|
|
}
|
|
return nLockedSize;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Evenly respaces all the splitters
|
|
//-----------------------------------------------------------------------------
|
|
void Splitter::EvenlyRespaceSplitters( )
|
|
{
|
|
int nSplitterCount = GetSubPanelCount();
|
|
if ( nSplitterCount == 0 )
|
|
return;
|
|
|
|
int nLockedSize = ComputeLockedSize( 0 );
|
|
float flUnlockedSize = (float)( GetPosRange() - nLockedSize );
|
|
float flDPos = flUnlockedSize / (float)nSplitterCount;
|
|
if ( flDPos < SPLITTER_HANDLE_WIDTH )
|
|
{
|
|
flDPos = SPLITTER_HANDLE_WIDTH;
|
|
}
|
|
float flPos = 0.0f;
|
|
for ( int i = 0; i < nSplitterCount; ++i )
|
|
{
|
|
if ( !m_Splitters[i].m_bLocked )
|
|
{
|
|
flPos += flDPos;
|
|
}
|
|
else
|
|
{
|
|
flPos += m_Splitters[i].m_nLockedSize;
|
|
}
|
|
m_Splitters[i].m_flPos = flPos;
|
|
}
|
|
|
|
InvalidateLayout();
|
|
}
|
|
|
|
void Splitter::RespaceSplitters( float *flFractions )
|
|
{
|
|
int nSplitterCount = GetSubPanelCount();
|
|
if ( nSplitterCount == 0 )
|
|
return;
|
|
|
|
float flPos = 0.0f;
|
|
int nPosRange = GetPosRange();
|
|
for ( int i = 0; i < nSplitterCount; ++i )
|
|
{
|
|
flPos += flFractions[i];
|
|
m_Splitters[i].m_flPos = flPos * nPosRange;
|
|
}
|
|
|
|
Assert( flPos == 1.0f );
|
|
|
|
InvalidateLayout();
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: sets user settings
|
|
//-----------------------------------------------------------------------------
|
|
void Splitter::ApplyUserConfigSettings(KeyValues *userConfig)
|
|
{
|
|
BaseClass::ApplyUserConfigSettings( userConfig );
|
|
|
|
// read the splitter sizes
|
|
int c = m_Splitters.Count();
|
|
float *pFractions = (float*)_alloca( c * sizeof(float) );
|
|
float flTotalSize = 0.0f;
|
|
for ( int i = 0; i < c; i++ )
|
|
{
|
|
char name[128];
|
|
_snprintf(name, sizeof(name), "%d_splitter_pos", i);
|
|
pFractions[i] = userConfig->GetFloat( name, flTotalSize + SPLITTER_HANDLE_WIDTH + 1 );
|
|
flTotalSize = pFractions[i];
|
|
}
|
|
|
|
if ( flTotalSize != 0.0f )
|
|
{
|
|
int nPosRange = GetPosRange();
|
|
for ( int i = 0; i < c; ++i )
|
|
{
|
|
pFractions[i] /= flTotalSize;
|
|
m_Splitters[i].m_flPos = pFractions[i] * nPosRange;
|
|
}
|
|
}
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: returns user config settings for this control
|
|
//-----------------------------------------------------------------------------
|
|
void Splitter::GetUserConfigSettings(KeyValues *userConfig)
|
|
{
|
|
BaseClass::GetUserConfigSettings( userConfig );
|
|
|
|
// save which columns are hidden
|
|
int c = m_Splitters.Count();
|
|
for ( int i = 0 ; i < c; i++ )
|
|
{
|
|
char name[128];
|
|
_snprintf(name, sizeof(name), "%d_splitter_pos", i);
|
|
userConfig->SetFloat( name, m_Splitters[i].m_flPos );
|
|
}
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Called to perform layout
|
|
//-----------------------------------------------------------------------------
|
|
void Splitter::PerformLayout( )
|
|
{
|
|
BaseClass::PerformLayout();
|
|
|
|
int nSplitterCount = GetSubPanelCount();
|
|
if ( nSplitterCount == 0 )
|
|
return;
|
|
|
|
int w, h;
|
|
GetSize( w, h );
|
|
|
|
int nLastPos = 0;
|
|
for ( int i = 0; i < nSplitterCount; ++i )
|
|
{
|
|
Panel *pChild = m_Splitters[i].m_pPanel;
|
|
SplitterHandle *pHandle = m_Splitters[i].m_pHandle;
|
|
int nSplitterPos = (int)( m_Splitters[i].m_flPos + 0.5f );
|
|
|
|
if ( m_Mode == SPLITTER_MODE_HORIZONTAL )
|
|
{
|
|
pChild->SetPos( 0, nLastPos );
|
|
pChild->SetSize( w, nSplitterPos - nLastPos );
|
|
if ( pHandle )
|
|
{
|
|
pHandle->SetPos( 0, nSplitterPos );
|
|
pHandle->SetSize( w, SPLITTER_HANDLE_WIDTH );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
pChild->SetPos( nLastPos, 0 );
|
|
pChild->SetSize( nSplitterPos - nLastPos, h );
|
|
if ( pHandle )
|
|
{
|
|
pHandle->SetPos( nSplitterPos, 0 );
|
|
pHandle->SetSize( SPLITTER_HANDLE_WIDTH, h );
|
|
}
|
|
}
|
|
|
|
nLastPos = nSplitterPos + SPLITTER_HANDLE_WIDTH;
|
|
}
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose:
|
|
//-----------------------------------------------------------------------------
|
|
void Splitter::GetSettings( KeyValues *outResourceData )
|
|
{
|
|
BaseClass::GetSettings( outResourceData );
|
|
}
|