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|
// début stringgrid FixedCol
// trouver les objets à partir de la colonne fixe:
// - stringgrid "fixe"
// - stringgrid associée
// - Hscrollbar
// - Vscrollbar
procedure ChercheObjetsParColf(colf: TstringColumn;
var gridf, grid: TStringGrid;
var hsb, vsb: TScrollBar;
var split: TSplitter);
var
panel: Tpanel;
i: integer;
begin
gridf:=colf.parent.parent as TStringGrid;
panel:=gridf.parent as Tpanel;
For i:=0 to panel.ChildrenCount-1 do
begin
if (panel.children[i] is TStringGrid) and (panel.children[i]<>gridf) then
begin
grid:=panel.children[i] as TStringGrid;
end
else
begin
if (panel.children[i] is TScrollBar) then
begin
if (panel.children[i] as TScrollBar).orientation=TOrientation.Horizontal then
begin
hsb:=panel.children[i] as TScrollBar;
end
else
begin
if (panel.children[i] as TScrollBar).orientation=TOrientation.Vertical then
begin
vsb:=panel.children[i] as TScrollBar;
end
end;
end
else
begin
if (panel.children[i] is TSplitter) then
begin
split:=panel.children[i] as TSplitter;
end;
end;
end;
end;
end;
procedure ChercheGridParVScrollBar(vsb: TScrollBar; var gridf: TStringGrid);
var
panel: Tpanel;
grid1, grid2 : TStringGrid;
i: integer;
begin
panel:=vsb.parent as Tpanel;
grid1:=nil;
grid2:=nil;
For i:=0 to panel.ChildrenCount-1 do
begin
if (panel.children[i] is TStringGrid) and (grid1=nil)then
begin
grid1:=panel.children[i] as TStringGrid;
end
else
begin
if (panel.children[i] is TStringGrid) and (panel.children[i]<>grid1) and (grid2=nil) then
begin
grid2:=panel.children[i] as TStringGrid;
break;
end
end;
end;
if grid1.Position.X<grid2.Position.X then
gridf:=grid1
else
gridf:=grid2;
end;
procedure ChercheGridParHScrollBar(hsb: TScrollBar; var grid: TStringGrid);
var
panel: Tpanel;
grid1, grid2 : TStringGrid;
i: integer;
begin
panel:=hsb.parent as Tpanel;
grid1:=nil;
grid2:=nil;
For i:=0 to panel.ChildrenCount-1 do
begin
if (panel.children[i] is TStringGrid) and (grid1=nil)then
begin
grid1:=panel.children[i] as TStringGrid;
end
else
begin
if (panel.children[i] is TStringGrid) and (panel.children[i]<>grid1) and (grid2=nil) then
begin
grid2:=panel.children[i] as TStringGrid;
break;
end
end;
end;
if grid1.Position.X<grid2.Position.X then
grid:=grid2
else
grid:=grid1;
end;
procedure ChercheObjetsParGrid(grid1: TStringGrid;
var grid2: TStringGrid;
var hsb, vsb: TScrollBar;
var split: TSplitter);
var
panel: Tpanel;
i: integer;
begin
panel:=grid1.parent as Tpanel;
For i:=0 to panel.ChildrenCount-1 do
begin
if (panel.children[i] is TStringGrid) and (panel.children[i]<>grid1) then
begin
grid2:=panel.children[i] as TStringGrid;
end
else
begin
if (panel.children[i] is TScrollBar) then
begin
if (panel.children[i] as TScrollBar).orientation=TOrientation.Horizontal then
begin
hsb:=panel.children[i] as TScrollBar;
end
else
begin
if (panel.children[i] as TScrollBar).orientation=TOrientation.Vertical then
begin
vsb:=panel.children[i] as TScrollBar;
end
end;
end
else
begin
if (panel.children[i] is TSplitter) then
begin
split:=panel.children[i] as TSplitter;
end;
end;
end;
end;
end;
procedure ChercheHsbParSplit(split: TSplitter; var hsb: TScrollBar);
var
i: integer;
panel: TPanel;
begin
panel:=(split.parent) as Tpanel;
For i:=0 to panel.ChildrenCount-1 do
begin
if (panel.children[i] is TScrollBar) then
begin
if (panel.children[i] as TScrollBar).orientation=TOrientation.Horizontal then
begin
hsb:=panel.children[i] as TScrollBar;
end;
end;
end;
end;
procedure ChercheGrid2ParGrid1(grid1: TStringGrid; var grid2: TStringGrid);
var
panel: Tpanel;
i: integer;
begin
panel:=(grid1.parent) as Tpanel;
For i:=0 to panel.ChildrenCount-1 do
begin
if (panel.children[i] is TStringGrid) and (panel.children[i]<>grid1) then
begin
grid2:=panel.children[i] as TStringGrid;
end
end;
end;
// redimensionnement de la colonne fixe
procedure TForm1.FirstColumnResize(Sender: TObject);
var
P: TPointF;
gridf, grid: TStringGrid;
colf: TStringColumn;
hsb, vsb: TScrollBar;
split: TSplitter;
objet: tfmxobject;
i: integer;
begin
colf:=(sender as TstringColumn);
ChercheObjetsParColf(colf, gridf, grid, hsb, vsb, split);
if colf.width>gridf.width then
begin
gridf.width:=colf.width;
hsb.Margins.Left:=split.Position.X+split.Width;
end
else
colf.width:=firstcolwidth(colf);
// redimenssionnement éventuel du vscrollbar
P:=grid.ViewportPosition;
P.y:=gridf.ViewportPosition.Y;
grid.ViewportPosition:=P;
UpDateScrollBar(grid.VScrollBar, vsb);
end;
// redimensionnement de la stringgrid "fixe"
procedure TForm1.SGfResize(Sender: TObject);
var
gridf: TStringGrid;
begin
gridf:=sender as TStringGrid;
gridf.columns[0].width:=firstcolwidth(gridf.columns[0]);
end;
procedure TForm1.SGfSelectCell(Sender: TObject; const ACol, ARow: Integer;
var CanSelect: Boolean);
var
grid1, grid2: TStringGrid;
begin
grid1:=sender as Tstringgrid;
ChercheGrid2ParGrid1(grid1, grid2);
grid1.OnSelectCell:=nil;
grid2.OnSelectCell:=nil;
if sender=grid1 then
grid2.selectrow(arow)
else
grid1.selectrow(arow);
grid1.OnSelectCell:=SGfSelectCell;
grid2.OnSelectCell:=SGfSelectCell;
end;
function TForm1.Firstcolwidth(colf: TColumn): single;
begin
result:=(colf.parent.parent as TstringGrid).width;
end;
procedure TForm1.splitMouseMove(Sender: TObject; Shift: TShiftState; X, Y: Single); // encours new
var
hsb: TScrollBar;
split: TSplitter;
begin
split:=sender as Tsplitter;
ChercheHsbParSplit(split, hsb);
hsb.Margins.Left:=split.Position.X+split.Width;
end;
//synchronisation entre les deux grilles
procedure TForm1.ViewportPositionChange(Sender: TObject;
const OldViewportPosition, NewViewportPosition: TPointF;
const ContentSizeChanged: Boolean);
var
P: TPointF;
grid1, grid2, gridf, grid: TStringGrid;
hsb, vsb: TScrollBar;
split: TSplitter;
begin
if sender is TStringGrid then
begin
grid1:=Sender as TStringGrid;
ChercheObjetsParGrid(grid1, grid2, hsb, vsb, split);
if grid1.Position.X<grid2.Position.X then
begin
P:=grid2.ViewportPosition;
P.y:=grid1.ViewportPosition.Y;
grid2.ViewportPosition:=P;
UpDateScrollBar(grid2.VScrollBar, vsb);
end
else
begin
P.X:=0;
P.Y:=grid1.ViewportPosition.Y;
grid2.ViewportPosition:=P;
UpDateScrollBar(grid1.HScrollBar, hsb);
UpDateScrollBar(grid1.VScrollBar, vsb);
end;
end;
end;
// mise à jour des scorllbar en fonction des scrollbar de la grille "non fixe"
procedure TForm1.UpDateScrollBar(const aGridScrollBar, aToScrollBar: TScrollBar);
begin
if aGridScrollBar=Nil then
Exit;
with aToScrollBar do
begin
Max:=aGridScrollBar.Max;
Min:=aGridScrollBar.Min;
ViewportSize:=aGridScrollBar.ViewportSize;
value:=aGridScrollBar.Value;
end;
end;
// onchange de la vertical scrollbar
procedure TForm1.vsbChange(Sender: TObject);
var
vsb: TScrollBar;
gridf: TStringGrid;
begin
vsb:=sender as TScrollBar;
ChercheGridParVScrollBar(vsb, gridf);
gridf.ViewportPosition:=PointF(0, vsb.Value);
end;
// onchange de la horizontal scrollbar
procedure TForm1.hsbChange(Sender: TObject);
var
P: TPointF;
hsb: TScrollBar;
grid: TStringGrid;
begin
hsb:=Sender as TScrollBar;
ChercheGridParHScrollBar(hsb, grid);
p:=grid.ViewportPosition;
p.x:=hsb.value;
grid.ViewportPosition:=p;
end;
// mise à jour de la grille en fonction du resize d'une colonne "non fixe"
procedure TForm1.DummyHeaderResize(Sender: TObject; var NewSize: Single);
var
grid, gridf: TStringGrid;
hsb, vsb: TScrollBar;
split: TSplitter;
acol: Tcolumn;
begin
if sender<>nil then
begin
acol:=TopengridHeaderitem(sender).Column;
grid:=acol.parent.parent as TStringGrid;
if grid<>nil then
begin
ChercheObjetsParGrid(grid, gridf, hsb, vsb, split);
TopenGridHeaderItem(sender).Resized;
UpDateScrollBar(grid.HScrollBar, hsb);
end;
end;
end;
// présentation des grilles, notamment les titres centrés,
// mais aussi déclaration du OnResizeItemEvent par DummyHeaderResize
procedure TForm1.SGPresentation(grid: TStringGrid);
var
i: integer;
FHeader: THeader;
gridf: TStringGrid;
hsb, vsb: TScrollBar;
split: TSplitter;
begin
with TStyledGrid(grid.Presentation) do
begin
ApplyStyleLookup;
if grid.FindStyleResource<THeader>('header', FHeader) then
FHeader.OnResizeItem:=DummyHeaderResize;
// pour afficher les titres centrés
for i:=0 to Headeritemcount-1 do
HeaderItem[i].TextSettings.HorzAlign:=TTextAlign.Center;
// pour afficher les valeurs à droite si numérique
//for i:=0 to ColumnCount-1 do
// Columns[i].HorzAlign:=TTextAlign.Trailing;
//affichage du titre de la colonne fixe centré
ChercheObjetsParGrid(grid, gridf, hsb, vsb, split);
with TstyledGrid(gridf.Presentation) do
begin
ApplyStyleLookup;
if HeaderItemCount-1>0 then
HeaderItem[0].TextSettings.HorzAlign:=TTextAlign.Center;
end;
end;
end;
// regroupement de toutes les choses à faire dans le OnCreate de la Form
procedure TForm1.FixedColSG(var gridf, grid: TStringGrid);
var
grid2: TStringGrid;
hsb, vsb: TScrollBar;
split: Tsplitter;
aheader: Theader;
HeaderHeight: single;
begin
gridf.Options:=gtf.Options+[TgridOption.RowSelect];
gridf.ShowScrollBars:=false;
grid.ShowScrollBars:=false;
ChercheObjetsParGrid(gridf, grid2, hsb, vsb, split);
// définition de la taille du splitter en fonction de la plateforme
{$IFDEF MSWINDOWS}
split.width:=2;
{$ELSE}
{$IFDEF ANDROID}
split.width:=6;
{$ENDIF}
{$ENDIF}
//marge droite de la horizontalbar
hsb.Margins.Right:=vsb.Width;
//marge haute de la verticalBar
// trouver la hauteur du header de la grid
// Header: Theader;
//Header := THeader((StringGrid1).FindStyleResource('header'));
//if Assigned(Header) then
// Pt.Y := Round(Header.Height);
//ou bien
if gridf.Findstyleresource<THeader>('header', aHeader) then
HeaderHeight:=round(aHeader.height)
else
HeaderHeight:=(cnom.AbsoluteRect.top - gtf.AbsoluteRect.top)-2;
vsb.Margins.Top:=HeaderHeight;
// redimensionnement de la colonne fixe en fonction de la stringgridfixe
gridf.columns[0].width:=FirstColWidth(gtf.columns[0]);
// redimensionnement de la stringgrid"fixe"
gridf.OnResize:=sgfResize;
gridf.onselectcell:=SGfSelectCell;
grid.onselectcell:=SGfSelectCell;
//reporter toutes les grilles concernées sur la procédure générique
gridf.Model.OnViewportPositionChange:=ViewportPositionChange;
grid.Model.OnViewportPositionChange:=ViewportPositionChange;
gridf.Model.CellReturnAction:=TCellReturnAction.GotoNextRow;
grid.Model.CellReturnAction:=TCellReturnAction.GotoNextRow;
SGPresentation(grid);
end;
// fin stringgrid fixedcol |
