diff options
Diffstat (limited to 'library/CustomGrid.cpp')
| -rw-r--r-- | library/CustomGrid.cpp | 335 |
1 files changed, 335 insertions, 0 deletions
diff --git a/library/CustomGrid.cpp b/library/CustomGrid.cpp new file mode 100644 index 00000000..76e22441 --- /dev/null +++ b/library/CustomGrid.cpp @@ -0,0 +1,335 @@ +#include "CustomGrid.h" + +const unsigned int MinimumRows = 15; + +//class containing pure grid data: basically the same as wxGridStringTable, but adds cell formatting +class CustomGridTableBase : public wxGridStringTable +{ +public: + CustomGridTableBase(int numRows, int numCols) : wxGridStringTable(numRows, numCols), gridIdentifier(0), currentUI_ViewPtr(0), lastNrRows(MinimumRows) + { + lightBlue = new wxColour(80, 110, 255); + } + + ~CustomGridTableBase() + { + delete lightBlue; + } + + + void setGridDataTable(UI_Grid* currentUI_ViewPtr) + { + this->currentUI_ViewPtr = currentUI_ViewPtr; + } + + void SetGridIdentifier(int id) + { + gridIdentifier = id; + } + +//########################################################################### +//grid standard input output methods, redirected directly to UIGrid to improve performance + + virtual int GetNumberRows() + { + if (currentUI_ViewPtr) + return max(currentUI_ViewPtr->size(), MinimumRows); + return MinimumRows; //grid is initialized with this number of rows + } + + virtual bool IsEmptyCell( int row, int col ) + { + return (GetValue(row, col) == wxEmptyString); + } + + virtual wxString GetValue( int row, int col ) + { + if (currentUI_ViewPtr) + { + if (currentUI_ViewPtr->size() > unsigned(row)) + { + switch (gridIdentifier) + { + case 1: + if (4 > col) + { + switch (col) + { + case 0: + return (*currentUI_ViewPtr)[row].leftFilename; + case 1: + return (*currentUI_ViewPtr)[row].leftRelativePath; + case 2: + return (*currentUI_ViewPtr)[row].leftSize; + case 3: + return (*currentUI_ViewPtr)[row].leftDate; + } + } + break; + + case 2: + if (4 > col) + { + switch (col) + { + case 0: + return (*currentUI_ViewPtr)[row].rightFilename; + case 1: + return (*currentUI_ViewPtr)[row].rightRelativePath; + case 2: + return (*currentUI_ViewPtr)[row].rightSize; + case 3: + return (*currentUI_ViewPtr)[row].rightDate; + } + } + break; + + case 3: + if (1 > col) + { + return (*currentUI_ViewPtr)[row].cmpResult; + } + break; + + default: + break; + } + } + } + //if data not found in UIgrid table: + return wxEmptyString; + } + + virtual void SetValue( int row, int col, const wxString& value ) + { + assert (false); //should not be used, since values are retrieved directly from currentUI_ViewPtr + } + virtual void Clear() + { + assert (false); // we don't want to use this, since the visible grid is directly connected to currentUI_ViewPtr} + } + virtual bool InsertRows( size_t pos = 0, size_t numRows = 1 ) + { + assert (false); // we don't want to use this, since the visible grid is directly connected to currentUI_ViewPtr} + return true; + } + virtual bool AppendRows( size_t numRows = 1 ) + { + assert (false); // we don't want to use this, since the visible grid is directly connected to currentUI_ViewPtr} + return true; + } + virtual bool DeleteRows( size_t pos = 0, size_t numRows = 1 ) + { + assert (false); // we don't want to use this, since the visible grid is directly connected to currentUI_ViewPtr} + return true; + } + + //update dimensions of grid: no need for InsertRows, AppendRows, DeleteRows anymore!!! + void updateGridSizes() + { + if (currentUI_ViewPtr) + { + int currentNrRows = GetNumberRows(); + + if (lastNrRows < currentNrRows) + { + if ( GetView() ) + { + wxGridTableMessage msg(this, + wxGRIDTABLE_NOTIFY_ROWS_APPENDED, + currentNrRows - lastNrRows); + + GetView()->ProcessTableMessage( msg ); + } + } + else if (lastNrRows > currentNrRows) + { + if ( GetView() ) + { + wxGridTableMessage msg(this, + wxGRIDTABLE_NOTIFY_ROWS_DELETED, + 0, + lastNrRows - currentNrRows); + + GetView()->ProcessTableMessage( msg ); + } + } + lastNrRows = currentNrRows; + } + } +//########################################################################### + + + bool markThisRow(int row) + { + if (currentUI_ViewPtr) + { + if (currentUI_ViewPtr->size() > unsigned(row)) + { + if ((*currentUI_ViewPtr)[row].cmpResult == ConstFilteredOut) + return true; + } + } + return false; + } + + wxGridCellAttr* GetAttr(int row, int col, wxGridCellAttr::wxAttrKind kind) + { + wxGridCellAttr* result = wxGridTableBase::GetAttr(row, col, kind); + + // MARK FILTERED ROWS: + if (result) + { //if kind is not a cell or row attribute, we have to clone the cell attribute, since we don't want to change e.g. all column attribs + if (result->GetKind() != wxGridCellAttr::Cell && result->GetKind() != wxGridCellAttr::Row) + { + wxGridCellAttr* attr = result->Clone(); + result->DecRef(); + result = attr; + } + + if (markThisRow(row)) + result->SetBackgroundColour(*lightBlue); + else + result->SetBackgroundColour(*wxWHITE); + } + else + { + result = new wxGridCellAttr; + if (markThisRow(row)) + result->SetBackgroundColour(*lightBlue); + } + + return result; + } + +private: + wxColour* lightBlue; + int gridIdentifier; + UI_Grid* currentUI_ViewPtr; //(fast) access to underlying grid data :) + int lastNrRows; +}; + + + +//######################################################################################################## + +CustomGrid::CustomGrid( wxWindow *parent, + wxWindowID id, + const wxPoint& pos, + const wxSize& size, + long style, + const wxString& name) + : wxGrid(parent, id, pos, size, style, name), + scrollbarsEnabled(true), + m_grid1(0), m_grid2(0), m_grid3(0), + gridDataTable(0), + currentSortColumn(-1), + sortMarker(0) {} + +CustomGrid::~CustomGrid() {} + +bool CustomGrid::CreateGrid(int numRows, int numCols, wxGrid::wxGridSelectionModes selmode) +{ + //use custom wxGridTableBase class for management of large sets of formatted data. + //This is done in CreateGrid instead of SetTable method since source code is generated and wxFormbuilder invokes CreatedGrid by default. + + gridDataTable = new CustomGridTableBase(numRows, numCols); + SetTable(gridDataTable, true, selmode); //give ownership to CustomGrid: gridDataTable is deleted automatically in CustomGrid destructor + return true; +} + + +void CustomGrid::deactivateScrollbars() +{ + scrollbarsEnabled = false; +} + + +//overwrite virtual method to finally get rid of the scrollbars +void CustomGrid::SetScrollbar(int orientation, int position, int thumbSize, int range, bool refresh) +{ + if (scrollbarsEnabled) + wxWindow::SetScrollbar(orientation, position, thumbSize, range, refresh); + else + wxWindow::SetScrollbar(orientation, 0, 0, 0, refresh); +} + + +//this method is called when grid view changes: useful for parallel updating of multiple grids +void CustomGrid::DoPrepareDC(wxDC& dc) +{ + wxScrollHelper::DoPrepareDC(dc); + + int x, y = 0; + if (leadingPanel == 1 && this == m_grid1) //avoid back coupling + { + GetViewStart(&x, &y); + m_grid2->Scroll(x, y); + m_grid3->Scroll(-1, y); //scroll in y-direction only + } + else if (leadingPanel == 2 && this == m_grid2) //avoid back coupling + { + GetViewStart(&x, &y); + m_grid1->Scroll(x, y); + m_grid3->Scroll(-1, y); + } + else if (leadingPanel == 3 && this == m_grid3) //avoid back coupling + { + GetViewStart(&x, &y); + m_grid1->Scroll(-1, y); + m_grid2->Scroll(-1, y); + } +} + +//these classes will scroll together, hence the name ;) +void CustomGrid::setScrollFriends(CustomGrid* grid1, CustomGrid* grid2, CustomGrid* grid3) +{ + m_grid1 = grid1; + m_grid2 = grid2; + m_grid3 = grid3; + + assert(gridDataTable); + if (this == m_grid1) + gridDataTable->SetGridIdentifier(1); + else if (this == m_grid2) + gridDataTable->SetGridIdentifier(2); + else if (this == m_grid3) + gridDataTable->SetGridIdentifier(3); + else + assert (false); +} + + +void CustomGrid::setGridDataTable(UI_Grid* currentUI_ViewPtr) +{ + //set underlying grid data + assert(gridDataTable); + gridDataTable->setGridDataTable(currentUI_ViewPtr); +} + + +void CustomGrid::updateGridSizes() +{ + assert(gridDataTable); + gridDataTable->updateGridSizes(); +} + + +void CustomGrid::setSortMarker(const int sortColumn, const wxBitmap* bitmap) +{ + currentSortColumn = sortColumn; + sortMarker = bitmap; +} + + +void CustomGrid::DrawColLabel( wxDC& dc, int col ) +{ + assert(0 <= col && col < 4); + + wxGrid::DrawColLabel(dc, col); + + if (col == currentSortColumn) + { + dc.DrawBitmap(*sortMarker, GetColRight(col) - 16 - 2, 2, true); //respect 2-pixel border + } +} |