home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
OS/2 Shareware BBS: 10 Tools
/
10-Tools.zip
/
wxos2233.zip
/
wxOS2-2_3_3.zip
/
wxWindows-2.3.3
/
contrib
/
src
/
gizmos
/
multicell.cpp
< prev
next >
Wrap
C/C++ Source or Header
|
2002-03-07
|
21KB
|
671 lines
/////////////////////////////////////////////////////////////////////////////
// Name: multicell.cpp
// Purpose: provide two new classes for layout, wxMultiCellSizer and wxMultiCellCanvas
// Author: Jonathan Bayer
// Modified by:
// Created:
// RCS-ID: $Id:
// Copyright: (c) Jonathan Bayer
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// This was inspired by the gbsizer class written by Alex Andruschak
#ifdef __GNUG__
#pragma implementation "multicell.h"
#endif
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
#ifndef WX_PRECOMP
#include "wx/wx.h"
#endif
#include "wx/gizmos/multicell.h"
//---------------------------------------------------------------------------
IMPLEMENT_ABSTRACT_CLASS(wxMultiCellSizer, wxSizer);
IMPLEMENT_ABSTRACT_CLASS(wxMultiCellItemHandle, wxObject);
//---------------------------------------------------------------------------
// wxMultiCellItemHandle
//---------------------------------------------------------------------------
/*
*Function Name: wxMultiCellItemHandle :: wxMultiCellItemHandle
*
*Parameters: int row
* int column
* int height
* int width
* wxSize size
* wxResizable Style
* wxSize weight
* int align
*
*Description: This is the constructor for the class.
*
*/
void wxMultiCellItemHandle :: Initialize( int row, int column, int height, int width, wxSize size, wxResizable Style, wxSize weight, int align)
{
m_column = column;
m_row = row;
m_width = width;
m_height = height;
m_style = Style;
m_fixedSize = size;
m_alignment = align;
m_weight = weight;
}
//---------------------------------------------------------------------------
wxMultiCellItemHandle :: wxMultiCellItemHandle( int row, int column, int height, int width, wxSize size, wxResizable Style, wxSize weight, int align)
{
Initialize(row, column,height, width, size, Style, weight, align);
}
//---------------------------------------------------------------------------
wxMultiCellItemHandle :: wxMultiCellItemHandle( int row, int column, wxSize size, wxResizable style, wxSize weight, int align)
{
Initialize(row, column,1, 1, size, style, weight, align);
}
//---------------------------------------------------------------------------
wxMultiCellItemHandle :: wxMultiCellItemHandle( int row, int column, wxResizable style, wxSize weight, int align)
{
Initialize(row, column, 1, 1, wxSize(1, 1), style, weight, align);
}
//---------------------------------------------------------------------------
wxMultiCellItemHandle :: wxMultiCellItemHandle( int row, int column, int align)
{
Initialize(row, column, 1, 1, wxSize(1,1), wxNOT_RESIZABLE, wxSize(1, 1), align);
}
//---------------------------------------------------------------------------
int wxMultiCellItemHandle::GetColumn()
{
return m_column;
}
//---------------------------------------------------------------------------
int wxMultiCellItemHandle::GetRow()
{
return m_row;
}
//---------------------------------------------------------------------------
int wxMultiCellItemHandle::GetWidth()
{
return m_width;
}
//---------------------------------------------------------------------------
int wxMultiCellItemHandle::GetHeight()
{
return m_height;
}
//---------------------------------------------------------------------------
wxResizable wxMultiCellItemHandle :: GetStyle()
{
return m_style;
};
//---------------------------------------------------------------------------
wxSize wxMultiCellItemHandle :: GetLocalSize()
{
return m_fixedSize;
};
//---------------------------------------------------------------------------
int wxMultiCellItemHandle :: GetAlignment()
{
return m_alignment;
};
//---------------------------------------------------------------------------
wxSize wxMultiCellItemHandle :: GetWeight()
{
return m_weight;
};
//---------------------------------------------------------------------------
//---------------------------------------------------------------------------
// wxMultiCellSizer
//---------------------------------------------------------------------------
/*
*Function Name: wxMultiCellSizer::Initialize
*
*Parameters: wxsize Initial size of sizer
*
*Description: This is a common function to initialize all the members of
* this class. It is only called from the constructors
*
*/
void wxMultiCellSizer::Initialize( wxSize size )
{
m_cell_count = size;
m_maxHeight = (int *)malloc((1 + m_cell_count.GetHeight()) * sizeof(int));
m_maxWidth = (int *)malloc( (1 + m_cell_count.GetWidth()) * sizeof(int));
m_rowStretch = (int *)malloc( (1 + m_cell_count.GetHeight()) * sizeof(int));
m_colStretch = (int *)malloc((1 + m_cell_count.GetWidth()) * sizeof(int));
m_weights = (wxSize **)malloc((1 + wxMax(m_cell_count.GetHeight(), m_cell_count.GetWidth())) * sizeof(wxSize *));
m_minSizes = (wxSize **)malloc((1 + wxMax(m_cell_count.GetHeight(), m_cell_count.GetWidth())) * sizeof(wxSize *));
for (int x = 0; x < 1 + wxMax(m_cell_count.GetHeight(), m_cell_count.GetWidth()); x++)
{
m_weights[x] = new wxSize(0,0);
m_minSizes[x] = new wxSize(0,0);
}
m_maxWeights = 1 + wxMax(m_cell_count.GetHeight(), m_cell_count.GetWidth());
m_defaultCellSize = wxSize(5, 5);
m_win = NULL;
m_pen = wxRED_PEN;
}
//---------------------------------------------------------------------------
wxMultiCellSizer::wxMultiCellSizer( wxSize & size )
{
Initialize(size);
}
//---------------------------------------------------------------------------
wxMultiCellSizer::wxMultiCellSizer( int rows, int cols)
{
wxSize size(cols, rows);
Initialize(size);
}
//---------------------------------------------------------------------------
wxMultiCellSizer::~wxMultiCellSizer()
{
m_children.DeleteContents(TRUE);
free(m_maxHeight);
free(m_maxWidth);
free(m_rowStretch);
free(m_colStretch);
for (int x = 0; x < 1 + wxMax(m_cell_count.GetHeight(), m_cell_count.GetWidth()); x++)
{
delete m_weights[x];
delete m_minSizes[x];
}
free(m_weights);
free(m_minSizes);
}
//---------------------------------------------------------------------------
bool wxMultiCellSizer::EnableGridLines(wxWindow *win)
{
m_win = win;
return TRUE;
}
//---------------------------------------------------------------------------
bool wxMultiCellSizer::SetGridPen(wxPen *pen)
{
m_pen = pen;
return TRUE;
}
//---------------------------------------------------------------------------
bool wxMultiCellSizer::SetDefaultCellSize(wxSize size)
{
m_defaultCellSize = size;
return TRUE;
}
//---------------------------------------------------------------------------
bool wxMultiCellSizer::SetColumnWidth(int column, int colSize, bool expandable)
{
if (expandable)
{
m_minSizes[column]->SetWidth(-colSize);
}
else
{
m_minSizes[column]->SetWidth(colSize);
}
return TRUE;
}
//---------------------------------------------------------------------------
bool wxMultiCellSizer::SetRowHeight(int row, int rowSize, bool expandable)
{
if (expandable)
{
m_minSizes[row]->SetHeight(-rowSize);
}
else
{
m_minSizes[row]->SetHeight(rowSize);
}
return TRUE;
}
//---------------------------------------------------------------------------
void wxMultiCellSizer::RecalcSizes()
{
if (m_children.GetCount() == 0)
return;
wxSize size = GetSize();
wxPoint pos = GetPosition();
GetMinimums();
// We need to take the unused space and equally give it out to all the rows/columns
// which are stretchable
int unUsedWidth = size.GetWidth() - Sum(m_maxWidth, m_cell_count.GetWidth());
int unUsedHeight = size.GetHeight() - Sum(m_maxHeight, m_cell_count.GetHeight());
int totalWidthWeight = 0;
int totalHeightWeight = 0;
int x;
for (x = 0; x < wxMax(m_cell_count.GetHeight(), m_cell_count.GetWidth()); x++)
{
if (m_rowStretch[x])
{
totalHeightWeight += m_weights[x]->GetHeight();
}
if (x < m_cell_count.GetWidth() && m_colStretch[x])
{
totalWidthWeight += m_weights[x]->GetWidth();
}
}
for (x = 0; x < wxMax(m_cell_count.GetHeight(), m_cell_count.GetWidth()); x++)
{
if (x < m_cell_count.GetHeight() && m_rowStretch[x])
{
m_maxHeight[x] += unUsedHeight * m_weights[x]->GetHeight() / totalHeightWeight;
}
if (x < m_cell_count.GetWidth() && m_colStretch[x])
{
m_maxWidth[x] += unUsedWidth * m_weights[x]->GetWidth() / totalWidthWeight;
}
}
// We now have everything we need to figure each cell position and size
// The arrays m_maxHeight and m_maxWidth now contain the final widths and height of
// each row and column.
double cell_width = (double)size.GetWidth() / (double)m_cell_count.GetWidth();
double cell_height = (double)size.GetHeight() / (double)m_cell_count.GetHeight();
wxPoint c_point;
wxSize c_size;
wxNode *current;
current = m_children.GetFirst();
while (current != NULL)
{
wxSizerItem *item = (wxSizerItem*) current->Data();
wxMultiCellItemHandle *rect;
if (item != NULL &&
(rect = (wxMultiCellItemHandle *)item->GetUserData()) != NULL)
{
c_point.x = pos.x + (int)(rect->GetColumn() * cell_width);
c_point.y = pos.y + (int)(rect->GetRow() * cell_height);
c_point.x = pos.x + Sum(m_maxWidth, rect->GetColumn());
c_point.y = pos.y + Sum(m_maxHeight, rect->GetRow());
c_size = rect->GetLocalSize();
wxSize minSize( item->CalcMin() );
if (c_size.GetHeight() != wxDefaultSize.GetHeight() ||
c_size.GetWidth() != wxDefaultSize.GetWidth())
{
minSize.SetHeight(wxMax(minSize.GetHeight(), c_size.GetHeight()));
minSize.SetWidth(wxMax(minSize.GetWidth(), c_size.GetWidth()));
}
if (rect->GetStyle() & wxHORIZENTAL_RESIZABLE ||
rect->GetWidth() > 1
|| m_minSizes[rect->GetColumn()]->GetWidth() < 0)
{
int w = 0;
for (int x = 0; x < rect->GetWidth(); x++)
{
w += m_maxWidth[rect->GetColumn() + x];
}
c_size.SetWidth(w);
}
else
{
c_size.SetWidth(minSize.GetWidth() );
}
if (rect->GetStyle() & wxVERTICAL_RESIZABLE ||
rect->GetHeight() > 1 ||
m_minSizes[rect->GetRow()]->GetHeight() < 0)
{
int h = 0;
for (int x = 0; x < rect->GetHeight(); x++)
{
h += m_maxHeight[rect->GetRow() + x];
}
c_size.SetHeight(h);
}
else
{
c_size.SetHeight(minSize.GetHeight());
}
int extraHeight = (m_maxHeight[rect->GetRow()] - c_size.GetHeight());
int extraWidth = (m_maxWidth[rect->GetColumn()] - c_size.GetWidth());
if (rect->GetWidth() == 1 && rect->GetAlignment() & wxALIGN_CENTER_HORIZONTAL)
{
c_point.x += extraWidth / 2;
}
if (rect->GetWidth() == 1 && rect->GetAlignment() & wxALIGN_RIGHT)
{
c_point.x += extraWidth;
}
if (rect->GetHeight() == 1 && rect->GetAlignment() & wxALIGN_CENTER_VERTICAL)
{
c_point.y += extraHeight / 2;
}
if (rect->GetHeight() == 1 && rect->GetAlignment() & wxALIGN_BOTTOM)
{
c_point.y += extraHeight;
}
item->SetDimension(c_point, c_size);
}
current = current->Next();
}
}
//---------------------------------------------------------------------------
wxSize wxMultiCellSizer::CalcMin()
{
if (m_children.GetCount() == 0)
return wxSize(10,10);
int m_minWidth = 0;
int m_minHeight = 0;
GetMinimums();
m_minWidth = Sum(m_maxWidth, m_cell_count.GetWidth());
m_minHeight = Sum(m_maxHeight, m_cell_count.GetHeight());
return wxSize( m_minWidth, m_minHeight );
}
//---------------------------------------------------------------------------
void wxMultiCellSizer :: GetMinimums()
{
// We first initial all the arrays EXCEPT for the m_minsizes array.
memset(m_maxHeight, 0, sizeof(int) * m_cell_count.GetHeight());
memset(m_maxWidth, 0, sizeof(int) * m_cell_count.GetWidth());
memset(m_rowStretch, 0, sizeof(int) * m_cell_count.GetHeight());
memset(m_colStretch, 0, sizeof(int) * m_cell_count.GetWidth());
for (int x = 0; x < 1 + wxMax(m_cell_count.GetHeight(), m_cell_count.GetWidth()); x++)
{
m_weights[x]->SetHeight(0);
m_weights[x]->SetWidth(0);
}
wxNode *node = m_children.GetFirst();
while (node)
{
wxSizerItem *item = (wxSizerItem*) node->Data();
wxMultiCellItemHandle *rect;
if (item != NULL &&
(rect = (wxMultiCellItemHandle *)item->GetUserData()) != NULL)
{
int row = rect->GetRow();
int col = rect->GetColumn();
// First make sure that the control knows about the max rows and columns
int changed = FALSE;
if (row + 1 > m_cell_count.GetHeight())
{
changed++;
m_maxHeight = (int *)realloc(m_maxHeight, (1 + row) * sizeof(int));
m_rowStretch = (int *)realloc(m_rowStretch, (1 + row) * sizeof(int));
for (int x = m_cell_count.GetHeight(); x < row + 1; x++)
{
m_maxHeight[x - 1] = 0;
m_rowStretch[x - 1] = 0;
}
m_cell_count.SetHeight(row + 1);
}
if (col + 1 > m_cell_count.GetWidth())
{
changed++;
m_maxWidth = (int *)realloc(m_maxWidth, (1 + col) * sizeof(int));
m_colStretch = (int *)realloc(m_colStretch, ( 1 + col) * sizeof(int));
for (int x = m_cell_count.GetWidth(); x < col + 1; x++)
{
m_maxWidth[x - 1] = 0;
m_colStretch[x - 1] = 0;
}
m_cell_count.SetWidth(col + 1);
}
if (changed)
{
m_weights = (wxSize **)realloc(m_weights, (1 + wxMax(m_cell_count.GetHeight(), m_cell_count.GetWidth())) * sizeof(wxSize *));
m_minSizes = (wxSize **)realloc(m_minSizes, (1 + wxMax(m_cell_count.GetHeight(), m_cell_count.GetWidth())) * sizeof(wxSize *));
for (int x = m_maxWeights; x < 1 + wxMax(m_cell_count.GetHeight(), m_cell_count.GetWidth()); x++)
{
m_weights[x - 1] = new wxSize(0,0);
m_minSizes[x - 1] = new wxSize(0,0);
}
m_maxWeights = 1 + wxMax(m_cell_count.GetHeight(), m_cell_count.GetWidth());
}
// Sum the m_weights for each row/column, but only if they are resizable
wxSize minSize( item->CalcMin() );
wxSize c_size = rect->GetLocalSize();
if (c_size.GetHeight() != wxDefaultSize.GetHeight() ||
c_size.GetWidth() != wxDefaultSize.GetWidth())
{
minSize.SetHeight(wxMax(minSize.GetHeight(), c_size.GetHeight()));
minSize.SetWidth(wxMax(minSize.GetWidth(), c_size.GetWidth()));
}
// For each row, calculate the max height for those fields which are not
// resizable in the vertical pane
if (!(rect->GetStyle() & wxVERTICAL_RESIZABLE || m_minSizes[row]->GetHeight() < 0))
{
m_maxHeight[row] = wxMax(m_maxHeight[row], minSize.GetHeight() / rect->GetHeight());
}
else
{
m_rowStretch[row] = 1;
if (m_minSizes[row]->GetHeight())
{
m_maxHeight[row] = abs(m_minSizes[row]->GetHeight());
}
else
{
m_maxHeight[row] = wxMax(m_maxHeight[row], m_defaultCellSize.GetHeight());
}
m_weights[row]->SetHeight(wxMax(m_weights[row]->GetHeight(), rect->GetWeight().GetHeight()));
}
// For each column, calculate the max width for those fields which are not
// resizable in the horizontal pane
if (!(rect->GetStyle() & wxHORIZENTAL_RESIZABLE || m_minSizes[col]->GetWidth() < 0))
{
if (m_minSizes[col]->GetWidth())
{
m_maxWidth[col] = abs(m_minSizes[col]->GetWidth());
}
else
{
m_maxWidth[col] = wxMax(m_maxWidth[col], minSize.GetWidth() / rect->GetWidth());
}
}
else
{
m_colStretch[col] = 1;
m_maxWidth[col] = wxMax(m_maxWidth[col], m_defaultCellSize.GetWidth());
m_weights[col]->SetWidth(wxMax(m_weights[col]->GetWidth(), rect->GetWeight().GetWidth()));
}
node = node->Next();
}
}
} // wxMultiCellSizer :: GetMinimums
//---------------------------------------------------------------------------
/*
*Function Name: wxMultiCellSizer :: Sum
*
*Parameters: int * pointer to array of ints
* int Number of cells to sum up
*
*Description: This member function sums up all the elements of the array which
* preceed the specified cell.
*
*Returns: int Sum
*
*/
int wxMultiCellSizer :: Sum(int *array, int x)
{
int sum = 0;
while (x--)
{
sum += array[x];
}
return sum;
}
//---------------------------------------------------------------------------
/*
*Function Name: wxMultiCellSizer :: DrawGridLines
*
*Parameters: wxDC Device context
*
*Description: This function draws the grid lines in the specified device context.
*
*/
void wxMultiCellSizer :: DrawGridLines(wxDC& dc)
{
RecalcSizes();
int maxW = Sum(m_maxWidth, m_cell_count.GetWidth());
int maxH = Sum(m_maxHeight, m_cell_count.GetHeight());
int x;
// Draw the columns
dc.SetPen(* m_pen);
for (x = 1; x < m_cell_count.GetWidth(); x++)
{
int colPos = Sum(m_maxWidth, x) ;
dc.DrawLine(colPos, 0, colPos, maxH);
}
// Draw the rows
for (x = 1; x < m_cell_count.GetHeight(); x++)
{
int rowPos = Sum(m_maxHeight, x);
dc.DrawLine(0, rowPos, maxW, rowPos);
}
}
//---------------------------------------------------------------------------
// Define the repainting behaviour
/*
*Function Name: wxMultiCellSizer::OnPaint
*
*Parameters: wxDC Device context
*
*Description: This function calls the DrawGridLines() member if a window
* has been previously specified. This functions MUST be called
* from an OnPaint member belonging to the window which the sizer
* is attached to.
*
*/
void wxMultiCellSizer::OnPaint(wxDC& dc )
{
if (m_win)
{
DrawGridLines(dc);
}
}
//---------------------------------------------------------------------------
//---------------------------------------------------------------------------
#define CELL_LOC(row, col) ((row) * m_maxCols + col)
//---------------------------------------------------------------------------
// wxCell
//---------------------------------------------------------------------------
/*
*Function Name: wxCell : wxLayoutConstraints
*
*Description: This class is used by wxMultiCellCanvas for internal storage
*
*/
class wxCell : public wxLayoutConstraints
{
public:
wxCell(wxWindow *win)
{
m_window = win;
};
wxWindow *m_window;
};
//---------------------------------------------------------------------------
// wxMultiCellCanvas
//---------------------------------------------------------------------------
wxMultiCellCanvas :: wxMultiCellCanvas(wxWindow *par, int numRows, int numCols)
: wxFlexGridSizer(numRows, numCols, 0, 0)
{
m_cells = (wxCell **)calloc(numRows * numCols, sizeof(wxCell *));
m_parent = par;
m_maxRows = numRows;
m_maxCols = numCols;
m_minCellSize = wxSize(5, 5);
}
//---------------------------------------------------------------------------
wxString itoa(int x)
{
char bfr[255];
sprintf(bfr, "%d", x);
return bfr;
}
//---------------------------------------------------------------------------
void wxMultiCellCanvas :: Add(wxWindow *win, unsigned int row, unsigned int col)
{
wxASSERT_MSG(row >= 0 && row < m_maxRows, wxString("Row ") + itoa(row) + " out of bounds (" + itoa(m_maxRows) + ")");
wxASSERT_MSG(col >= 0 && col < m_maxCols, wxString("Column ") + itoa(col) + " out of bounds (" + itoa(m_maxCols) + ")");
wxASSERT_MSG(m_cells[CELL_LOC(row, col)] == NULL, wxT("Cell already occupied"));
wxCell *newCell = new wxCell(win);
m_cells[CELL_LOC(row,col)] = newCell;
}
//---------------------------------------------------------------------------
void wxMultiCellCanvas :: CalculateConstraints()
{
unsigned int row, col;
for (row = 0; row < m_maxRows; row++)
{
for (col = 0; col < m_maxCols; col++)
{
if (!m_cells[CELL_LOC(row, col)])
{
// Create an empty static text field as a placeholder
m_cells[CELL_LOC(row, col)] = new wxCell(new wxStaticText(m_parent, -1, ""));
}
wxFlexGridSizer::Add(m_cells[CELL_LOC(row, col)]->m_window);
}
}
}
/*** End of File ***/