399 lines
7.0 KiB
C++
399 lines
7.0 KiB
C++
//========= Copyright © 1996-2002, Valve LLC, 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 <assert.h>
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#include "vgui_grid.h"
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using namespace vgui;
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#define AssertCheck(expr, msg) \
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if(!(expr))\
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{\
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assert(!msg);\
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return 0;\
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}
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// ------------------------------------------------------------------------------ //
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// CGrid::CGridEntry.
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// ------------------------------------------------------------------------------ //
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CGrid::CGridEntry::CGridEntry()
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{
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m_pPanel = NULL;
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m_bUnderline = false;
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}
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CGrid::CGridEntry::~CGridEntry()
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{
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}
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// ------------------------------------------------------------------------------ //
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// CGrid.
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// ------------------------------------------------------------------------------ //
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CGrid::CGrid()
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{
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Clear();
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}
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CGrid::~CGrid()
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{
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Term();
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}
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bool CGrid::SetDimensions(int xCols, int yRows)
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{
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Term();
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m_GridEntries = new CGridEntry[xCols * yRows];
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m_Widths = new int[xCols*2 + yRows*2];
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m_Heights = m_Widths + xCols;
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m_ColOffsets = m_Heights + yRows;
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m_RowOffsets = m_ColOffsets + xCols;
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if(!m_GridEntries || !m_Widths)
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{
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Term();
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return false;
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}
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memset(m_Widths, 0, sizeof(int) * (xCols*2 + yRows*2));
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m_xCols = xCols;
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m_yRows = yRows;
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return true;
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}
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void CGrid::Term()
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{
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delete [] m_GridEntries;
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delete [] m_Widths;
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Clear();
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}
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Panel* CGrid::GetEntry(int x, int y)
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{
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return GridEntry(x, y)->m_pPanel;
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}
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bool CGrid::SetEntry(int x, int y, Panel *pPanel)
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{
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CGridEntry *pEntry = GridEntry(x, y);
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if(!pEntry)
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return false;
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if(pEntry->m_pPanel)
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pEntry->m_pPanel->setParent(NULL);
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pEntry->m_pPanel = pPanel;
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if(pPanel)
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pPanel->setParent(this);
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m_bDirty = true;
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return true;
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}
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int CGrid::GetXSpacing()
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{
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return m_xSpacing;
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}
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int CGrid::GetYSpacing()
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{
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return m_ySpacing;
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}
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void CGrid::SetSpacing(int xSpacing, int ySpacing)
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{
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if(xSpacing != m_xSpacing)
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{
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m_xSpacing = xSpacing;
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CalcColOffsets(0);
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m_bDirty = true;
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}
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if(ySpacing != m_ySpacing)
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{
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m_ySpacing = ySpacing;
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CalcRowOffsets(0);
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m_bDirty = true;
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}
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}
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bool CGrid::SetColumnWidth(int iColumn, int width)
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{
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AssertCheck(iColumn >= 0 && iColumn < m_xCols, "CGrid::SetColumnWidth : invalid location specified");
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m_Widths[iColumn] = width;
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CalcColOffsets(iColumn+1);
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m_bDirty = true;
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return true;
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}
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bool CGrid::SetRowHeight(int iRow, int height)
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{
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AssertCheck(iRow >= 0 && iRow < m_yRows, "CGrid::SetColumnWidth : invalid location specified");
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m_Heights[iRow] = height;
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CalcRowOffsets(iRow+1);
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m_bDirty = true;
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return true;
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}
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int CGrid::GetColumnWidth(int iColumn)
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{
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AssertCheck(iColumn >= 0 && iColumn < m_xCols, "CGrid::GetColumnWidth: invalid location specified");
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return m_Widths[iColumn];
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}
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int CGrid::GetRowHeight(int iRow)
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{
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AssertCheck(iRow >= 0 && iRow < m_yRows, "CGrid::GetRowHeight: invalid location specified");
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return m_Heights[iRow];
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}
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int CGrid::CalcFitColumnWidth(int iColumn)
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{
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AssertCheck(iColumn >= 0 && iColumn < m_xCols, "CGrid::CalcFitColumnWidth: invalid location specified");
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int maxSize = 0;
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for(int i=0; i < m_yRows; i++)
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{
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Panel *pPanel = GridEntry(iColumn, i)->m_pPanel;
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if(!pPanel)
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continue;
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int w, h;
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pPanel->getSize(w,h);
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if(w > maxSize)
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maxSize = w;
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}
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return maxSize;
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}
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int CGrid::CalcFitRowHeight(int iRow)
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{
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AssertCheck(iRow >= 0 && iRow < m_yRows, "CGrid::CalcFitRowHeight: invalid location specified");
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int maxSize = 0;
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for(int i=0; i < m_xCols; i++)
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{
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Panel *pPanel = GridEntry(i, iRow)->m_pPanel;
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if(!pPanel)
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continue;
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int w, h;
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pPanel->getSize(w,h);
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if(h > maxSize)
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maxSize = h;
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}
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return maxSize;
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}
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void CGrid::AutoSetRowHeights()
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{
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for(int i=0; i < m_yRows; i++)
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SetRowHeight(i, CalcFitRowHeight(i));
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}
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bool CGrid::GetEntryBox(
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int col, int row, int &x, int &y, int &w, int &h)
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{
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AssertCheck(col >= 0 && col < m_xCols && row >= 0 && row < m_yRows, "CGrid::GetEntryBox: invalid location specified");
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x = m_ColOffsets[col];
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w = m_Widths[col];
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y = m_RowOffsets[row];
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h = m_Heights[row];
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return true;
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}
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bool CGrid::CopyColumnWidths(CGrid *pOther)
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{
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if(!pOther || pOther->m_xCols != m_xCols)
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return false;
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for(int i=0; i < m_xCols; i++)
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m_Widths[i] = pOther->m_Widths[i];
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CalcColOffsets(0);
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m_bDirty = true;
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return true;
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}
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void CGrid::RepositionContents()
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{
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for(int x=0; x < m_xCols; x++)
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{
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for(int y=0; y < m_yRows; y++)
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{
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Panel *pPanel = GridEntry(x,y)->m_pPanel;
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if(!pPanel)
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continue;
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pPanel->setBounds(
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m_ColOffsets[x],
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m_RowOffsets[y],
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m_Widths[x],
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m_Heights[y]);
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}
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}
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m_bDirty = false;
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}
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int CGrid::CalcDrawHeight()
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{
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if(m_yRows > 0)
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{
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return m_RowOffsets[m_yRows-1] + m_Heights[m_yRows - 1] + m_ySpacing;
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}
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else
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{
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return 0;
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}
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}
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void CGrid::paint()
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{
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if(m_bDirty)
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RepositionContents();
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Panel::paint();
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// walk the grid looking for underlined rows
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int x = 0, y = 0;
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for (int row = 0; row < m_yRows; row++)
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{
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CGridEntry *cell = GridEntry(0, row);
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y += cell->m_pPanel->getTall() + m_ySpacing;
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if (cell->m_bUnderline)
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{
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drawSetColor(cell->m_UnderlineColor[0], cell->m_UnderlineColor[1], cell->m_UnderlineColor[2], cell->m_UnderlineColor[3]);
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drawFilledRect(0, y - (cell->m_iUnderlineOffset + 1), getWide(), y - cell->m_iUnderlineOffset);
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}
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}
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}
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void CGrid::paintBackground()
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{
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Panel::paintBackground();
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}
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//-----------------------------------------------------------------------------
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// Purpose: sets underline color for a particular row
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//-----------------------------------------------------------------------------
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void CGrid::SetRowUnderline(int row, bool enabled, int offset, int r, int g, int b, int a)
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{
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CGridEntry *cell = GridEntry(0, row);
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cell->m_bUnderline = enabled;
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if (enabled)
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{
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cell->m_iUnderlineOffset = offset;
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cell->m_UnderlineColor[0] = r;
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cell->m_UnderlineColor[1] = g;
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cell->m_UnderlineColor[2] = b;
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cell->m_UnderlineColor[3] = a;
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}
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}
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void CGrid::Clear()
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{
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m_xCols = m_yRows = 0;
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m_Widths = NULL;
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m_GridEntries = NULL;
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m_xSpacing = m_ySpacing = 0;
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m_bDirty = false;
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}
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CGrid::CGridEntry* CGrid::GridEntry(int x, int y)
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{
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AssertCheck(x >= 0 && x < m_xCols && y >= 0 && y < m_yRows, "CGrid::GridEntry: invalid location specified");
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return &m_GridEntries[y*m_xCols + x];
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}
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void CGrid::CalcColOffsets(int iStart)
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{
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int cur = m_xSpacing;
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if(iStart != 0)
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cur += m_ColOffsets[iStart-1] + m_Widths[iStart-1];
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for(int i=iStart; i < m_xCols; i++)
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{
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m_ColOffsets[i] = cur;
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cur += m_Widths[i] + m_xSpacing;
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}
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}
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void CGrid::CalcRowOffsets(int iStart)
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{
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int cur = m_ySpacing;
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if(iStart != 0)
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cur += m_RowOffsets[iStart-1];
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for(int i=iStart; i < m_yRows; i++)
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{
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m_RowOffsets[i] = cur;
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cur += m_Heights[i] + m_ySpacing;
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}
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}
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bool CGrid::getCellAtPoint(int worldX, int worldY, int &row, int &col)
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{
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row = -1; col = -1;
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for(int x=0; x < m_xCols; x++)
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{
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for(int y=0; y < m_yRows; y++)
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{
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Panel *pPanel = GridEntry(x,y)->m_pPanel;
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if (!pPanel)
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continue;
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if (pPanel->isWithin(worldX, worldY))
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{
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col = x;
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row = y;
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return true;
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}
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}
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}
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return false;
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}
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