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界面库 

listbox添加checkbox
This commit is contained in:
JianjunLiu 2022-10-25 12:09:40 +08:00
parent b26de5f0fc
commit 80977eb23d
2 changed files with 37 additions and 9 deletions
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2
funcext/tvclib/tslvcl.tsf
View File

@ -2237,7 +2237,7 @@ type TListBox = class(TcustomListBox)
return array("name","caption","anchors","align","enabled", return array("name","caption","anchors","align","enabled",
"font","visible","border","color", "font","visible","border","color",
"height","width","left","top","items", "height","width","left","top","items",
"multisel","popupmenu","wsdlgmodalframe", "multisel","checkbox","popupmenu","wsdlgmodalframe",
"onmousedown","onmouseup", "onmousedown","onmouseup",
"onselectionchange" "onselectionchange"
); );

36
funcext/tvclib/utslvclstdctl.tsf
View File

@ -3134,6 +3134,7 @@ type TcustomListBox=class(TCustomListBoxbase)
FSelBegin :=-1; FSelBegin :=-1;
FSelEnd :=-1; FSelEnd :=-1;
FMultisel := false; FMultisel := false;
fcheckbox := false;
end end
function MouseUp(o,e);override; function MouseUp(o,e);override;
begin begin
@ -3233,8 +3234,19 @@ type TcustomListBox=class(TCustomListBoxbase)
@param(rc)(array) »æÖÆÇøÓò%% @param(rc)(array) »æÖÆÇøÓò%%
@param(cvs)(tcustomcanvas) »­²¼ %% @param(cvs)(tcustomcanvas) »­²¼ %%
**} **}
PaintIdxBkg(idx,rc,cvs); r := PaintIdxBkg(idx,rc,cvs);
PaintIdexText(idx,rc,cvs); rc1 := rc;
if fcheckbox then
begin
h := rc[3]-rc[1];
nh := min(h,16);
nnh := integer((h-nh)/2);
rc2 := array(rc[0]+2,rc[1]+nnh,rc[0]+nh+2,rc[3]-nnh);
cvs.Draw("framecontrol",array(rc2[0:1],rc2[2:3]),DFC_BUTTON,(r)?DFCS_CHECKED:DFCS_BUTTONCHECK);
rc1[0]+=nh+5;
end
PaintIdexText(idx,rc1,cvs);
end end
function PaintIdexText(idx,rc,cvs);virtual; function PaintIdexText(idx,rc,cvs);virtual;
begin begin
@ -3331,9 +3343,12 @@ type TcustomListBox=class(TCustomListBoxbase)
@param(state)(bool)״̬%% @param(state)(bool)״̬%%
**} **}
b := state?1:0; b := state?1:0;
if FMultisel <> 2 or not isValidIndex(n)or b=getItemSelectedState(n)then return; if (FMultisel <> 2) or not(isValidIndex(n)) or (b=getItemSelectedState(n)) then return;
if b then FMultisel3Data[n]:= b; if b then FMultisel3Data[n]:= b;
else reindex(FMultisel3Data,array(n:nil)); else
begin
reindex(FMultisel3Data,array(n:nil));
end
if FselectionChange then if FselectionChange then
CallMessgeFunction(FselectionChange,self(true),new tuieventbase(0,0,0,0)); CallMessgeFunction(FselectionChange,self(true),new tuieventbase(0,0,0,0));
InvalidateIdxRect(n); InvalidateIdxRect(n);
@ -3562,6 +3577,7 @@ type TcustomListBox=class(TCustomListBoxbase)
end end
property ItemCount read GetItemCount; property ItemCount read GetItemCount;
property Multisel:bool read FMultisel write SetMultisel; property Multisel:bool read FMultisel write SetMultisel;
property checkbox:bool read fcheckbox write setcheckbox;
property onSelectionChange:eventhandler read FselectionChange write FselectionChange; property onSelectionChange:eventhandler read FselectionChange write FselectionChange;
property Items:strings read GetData write setData; property Items:strings read GetData write setData;
protected protected
@ -3598,10 +3614,21 @@ type TcustomListBox=class(TCustomListBoxbase)
begin begin
if(idx >= min(FSelBegin,FSelEnd)and idx <= max(FSelBegin,FSelEnd))or(FMultisel=2 and FMultisel3Data[idx])then if(idx >= min(FSelBegin,FSelEnd)and idx <= max(FSelBegin,FSelEnd))or(FMultisel=2 and FMultisel3Data[idx])then
begin begin
r := true;
cvs.brush.Color := rgb(204,231,255); cvs.brush.Color := rgb(204,231,255);
end else end else
cvs.Brush.Color := Color; cvs.Brush.Color := Color;
cvs.FillRect(rc); cvs.FillRect(rc);
return r;
end
function setcheckbox(c);
begin
nc := c?true:false;
if nc<>fcheckbox then
begin
fcheckbox := nc;
InvalidateRect(nil,false);
end
end end
function SetMultisel(n); function SetMultisel(n);
begin begin
@ -3736,6 +3763,7 @@ type TcustomListBox=class(TCustomListBoxbase)
FSelEnd; FSelEnd;
FIsMouseDown; FIsMouseDown;
FMultisel; FMultisel;
fcheckbox;
FMultisel3Data; FMultisel3Data;
FFormerSelBegin; FFormerSelBegin;
FFormerSelEnd; FFormerSelEnd;