/
dllinterface.pas
828 lines (751 loc) · 31.1 KB
/
dllinterface.pas
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(*
Copyright (c) 2020 Steve Wright
This unit is part of the XIDE project.
This project is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
**********************************************************************
*)
unit DllInterface;
// Included in the uses list in XIDEMain, to provide interface methods referenced in InterfaceTypesDll.
{$ifndef JScript}
{$mode objfpc}{$H+}
{$INTERFACES CORBA}
interface
uses
Classes, SysUtils, StringUtils, ExtCtrls, Dialogs, Clipbrd, Forms, Controls,
NodeUtils, LazsUtils, EventsInterface, Events, XForm, XBitMap, XObjectInsp, XGPUCanvas, XTable,
XComposite, XIframe, XDataModel, XTree,
MouseAndKeyInput, LCLType, TypInfo;
type
IMyMethodInterface = interface(IInterface)
procedure mmiSetEventsNameSpace(NameSpace:String); stdcall;
procedure mmiShowMessage(msg:String); stdcall;
procedure mmiShowXForm(XFormID:String; modal:Boolean); stdcall;
procedure mmiCloseXForm(XFormID:String); stdcall;
procedure mmiSetPropertyValue(nodeName:String;propName:String;newValue:String); stdcall;
procedure mmiSetPropertyValueIndexed(nodeName:String;propName:String;newValue:TStringArray; x,y:integer); stdcall;
function mmiGetPropertyValue(nodeName:String;propName:String):string; stdcall;
Function mmiconfirm(TextMessage:string):boolean; stdcall;
Function mmiprompt(TextMessage,promptString:string):string; stdcall;
procedure mmiCopyToClip(str:String); stdcall;
function mmiCopyFromClip(e:TEventStatus):String; stdcall;
procedure mmiLoadTableFromExcelCopy(TableName,CopiedString:String); stdcall;
function mmiGetTableDataForExcel(TableName:String):String; stdcall;
procedure mmiLoadTableFromNumArray(TableName:String;NumArray:T2DNumArray); stdcall;
procedure mmiLoadTableFromStringArray(TableName:String;StrArray:T2DStringArray); stdcall;
function mmiGetTableDataArray(TableName:String;SkipHeader:Boolean):T2DStringArray; stdcall;
procedure mmiDoEvent(EventType,NodeId,myValue:String); stdcall;
procedure mmiMoveComponent(nodeId:string;NewParentId:string); stdcall;
procedure mmiCopyComponent(nodeId,NewParentId,NewName:string); stdcall;
function mmiDeleteComponent(nodeId:string;ShowNotFoundMsg:Boolean=true;ShowConfirm:Boolean=true):Boolean; stdcall;
procedure mmiDeleteSelectedTreeNode(TreeName:string); stdcall;
function mmiGetGPUParamNumValue(GPUName,pName:String):TNumArray; stdcall;
function mmiGetGPUParam2DNumValue(GPUName,pName:String):T2DNumArray; stdcall;
function mmiGetGPUConstIntValue(GPUName,pName:String):integer; stdcall;
procedure mmiSetGPUParamNumValue(GPUName,pName:String;pValue:TNumArray); stdcall;
procedure mmiSetGPUParam2DNumValue(GPUName,pName:String;pValue:T2DNumArray); stdcall;
procedure mmiSetGPUConstIntValue(GPUName,pName:String;pValue:integer); stdcall;
procedure mmiStartMain(e:TEventStatus); stdcall;
procedure mmiShowBusy(e:TEventStatus); stdcall;
procedure mmiHideBusy; stdcall;
procedure mmiProcessMessages; stdcall;
function mmiUserSystemAsString():String; stdcall;
procedure mmiLoadUserSystemString(SystemString:String); stdcall;
procedure mmiConsoleLog(txt:String); stdcall;
function mmiArray2DToString(arr:T2DNumArray):String; stdcall;
function mmiGetGPUPixelArray(GPUName:String):T3DNumArray; stdcall;
function mmiGetGPUPixelArrayAsString(GPUName:String):String; stdcall;
function mmiGetGPUStageArray(GPUName:String):T3DNumArray; stdcall;
function mmiGetGPUStageArrayAsString(GPUName:String):String; stdcall;
function mmiGetGPUInitStageArray(GPUName:String):T3DNumArray; stdcall;
procedure mmiDebugStart; stdcall;
procedure mmiRunPython(str:String); stdcall;
procedure mmiSetImageSource(nm,str:String); stdcall;
procedure mmiWobbleCEF(nm:String); stdcall;
procedure mmiPyodideLoadPackage(nm:String); stdcall;
function mmiPyodidePackageLoaded(nm:String):Boolean; stdcall;
function mmiDSFetchRow(e:TEventStatus;DSName:String;DSKeyValues:String):Boolean; stdcall;
function mmiDSAppendRow(e:TEventStatus;DSName:String;recObject:TObject):Boolean; stdcall;
function mmiDSDeleteRow(e:TEventStatus;DSName:String;DSKeyValues:String):Boolean; stdcall;
function mmiDSDeleteAllRows(e:TEventStatus;DSName:String):Boolean; stdcall;
// function mmiDSDatasetToString(e:TEventStatus;dsName:String):Boolean; stdcall;
end;
type TMyMethodObject = class(TInterfacedObject, IMyMethodInterface)
public
procedure mmiSetEventsNameSpace(NameSpace:String); stdcall;
procedure mmiShowMessage(msg:String); stdcall;
procedure mmiShowXForm(XFormID:String; modal:Boolean); stdcall;
procedure mmiCloseXForm(XFormID:String); stdcall;
procedure mmiSetPropertyValue(nodeName:String;propName:String;newValue:String); stdcall;
procedure mmiSetPropertyValueIndexed(nodeName:String;propName:String;newValue:TStringArray; x,y:integer); stdcall;
function mmiGetPropertyValue(nodeName:String;propName:String):string; stdcall;
Function mmiconfirm(Textmessage:string):boolean; stdcall;
Function mmiprompt(TextMessage,promptString:string):string; stdcall;
procedure mmiCopyToClip(str:String); stdcall;
function mmiCopyFromClip(e:TEventStatus):String; stdcall;
procedure mmiLoadTableFromExcelCopy(TableName,CopiedString:String); stdcall;
function mmiGetTableDataForExcel(TableName:String):String; stdcall;
procedure mmiLoadTableFromNumArray(TableName:String;NumArray:T2DNumArray); stdcall;
procedure mmiLoadTableFromStringArray(TableName:String;StrArray:T2DStringArray); stdcall;
function mmiGetTableDataArray(TableName:String;SkipHeader:Boolean):T2DStringArray; stdcall;
procedure mmiDoEvent(EventType,NodeId,myValue:String); stdcall;
procedure mmiMoveComponent(nodeId:string;NewParentId:string); stdcall;
procedure mmiCopyComponent(nodeId,NewParentId,NewName:string); stdcall;
function mmiDeleteComponent(nodeId:string;ShowNotFoundMsg:Boolean=true;ShowConfirm:Boolean=true):Boolean; stdcall;
procedure mmiDeleteSelectedTreeNode(TreeName:string); stdcall;
function mmiGetGPUParamNumValue(GPUName,pName:String):TNumArray; stdcall;
function mmiGetGPUParam2DNumValue(GPUName,pName:String):T2DNumArray; stdcall;
function mmiGetGPUConstIntValue(GPUName,pName:String):integer; stdcall;
procedure mmiSetGPUParamNumValue(GPUName,pName:String;pValue:TNumArray); stdcall;
procedure mmiSetGPUParam2DNumValue(GPUName,pName:String;pValue:T2DNumArray); stdcall;
procedure mmiSetGPUConstIntValue(GPUName,pName:String;pValue:integer); stdcall;
procedure mmiStartMain(e:TEventStatus); stdcall;
procedure mmiShowBusy(e:TEventStatus); stdcall;
procedure mmiHideBusy; stdcall;
procedure mmiProcessMessages; stdcall;
function mmiUserSystemAsString():String; stdcall;
procedure mmiLoadUserSystemString(SystemString:String); stdcall;
procedure mmiConsoleLog(txt:String); stdcall;
function mmiArray2DToString(arr:T2DNumArray):String; stdcall;
function mmiGetGPUPixelArray(GPUName:String):T3DNumArray; stdcall;
function mmiGetGPUPixelArrayAsString(GPUName:String):String; stdcall;
function mmiGetGPUStageArray(GPUName:String):T3DNumArray; stdcall;
function mmiGetGPUStageArrayAsString(GPUName:String):String; stdcall;
function mmiGetGPUInitStageArray(GPUName:String):T3DNumArray; stdcall;
procedure mmiDebugStart; stdcall;
procedure mmiRunPython(str:String); stdcall;
procedure mmiSetImageSource(nm,str:String); stdcall;
procedure mmiWobbleCEF(nm:String); stdcall;
procedure mmiPyodideLoadPackage(nm:String); stdcall;
function mmiPyodidePackageLoaded(nm:String):Boolean; stdcall;
function mmiDSFetchRow(e:TEventStatus;DSName:String;DSKeyValues:String):Boolean; stdcall;
function mmiDSAppendRow(e:TEventStatus;DSName:String;recObject:TObject):Boolean; stdcall;
function mmiDSDeleteRow(e:TEventStatus;DSName:String;DSKeyValues:String):Boolean; stdcall;
function mmiDSDeleteAllRows(e:TEventStatus;DSName:String):Boolean; stdcall;
// function mmiDSDatasetToString(e:TEventStatus;dsName:String):Boolean; stdcall;
end;
type TEventTimerTag = class
public
e:TEventStatus;
ProcName:String;
end;
type
TTimerEventWrapper = class
procedure DoEventTimer(Sender:TObject);
end;
var mmo : IMyMethodInterface;
//var DllEventTimer:TTimer;
TimerEventWrapper:TTimerEventWrapper;
procedure DSReturnToEvent(ReturnEvent:TEventStatus;ProcName:String);
implementation
uses PyXUtils;
var
EventsNameSpace:PChar;
function CreateEventTimer:TTimer;
var
newTimer:TTimer;
begin
newTimer:=TTimer.Create(nil);
newTimer.Interval:=10;
newTimer.OnTimer:=@TimerEventWrapper.DoEventTimer;
newTimer.Enabled:=false;
result:=newTimer;
end;
procedure TTimerEventWrapper.DoEventTimer(Sender:TObject);
var
rtnval:PChar;
myTag:TEventTimerTag;
begin
TTimer(Sender).Enabled:=false;
myTag:=TEventTimerTag(TTimer(Sender).Tag);
TTimer(Sender).Free;
myTag.e.ClearAsync(myTag.ProcName);
// !! Must not pass Strings from dll to main, if they need to persist (when the dll is unloaded) - use PChar instead.
rtnval:=PChar(myTag.e.ReturnString);
HandleEvent(myTag.e,myTag.e.EventType,myTag.e.NodeId,myTag.e.NameSpace,rtnval);
end;
procedure DSReturnToEvent(ReturnEvent:TEventStatus;ProcName:String);
var
myTag:TEventTimerTag;
myTimer:TTimer;
begin
if (ReturnEvent<>nil) then
begin
// simulate an async function (as the JS equivalent is async)
// to run the 'main' event section
myTag:=TEventTimerTag.Create;
myTag.ProcName:=ProcName;
myTag.e:=ReturnEvent;
//DllEventTimer.Tag:=WinSizeDependentInt(myTag);
//DllEventTimer.Enabled:=true;
myTimer:=CreateEventTimer;
myTimer.Tag:=WinSizeDependentInt(myTag);
myTimer.Enabled:=true;
end;
end;
procedure TMyMethodObject.mmiSetEventsNameSpace(NameSpace:String); stdcall;
begin
EventsNameSpace:=PChar(NameSpace);
end;
procedure TMyMethodObject.mmiShowMessage(msg:String); stdcall;
begin
showmessage(msg);
end;
procedure TMyMethodObject.mmiShowXForm(XFormID:String; modal:Boolean); stdcall;
begin
//showmessage('calling ShowXForm '+XFormID+' ns='+EventsNameSpace);
XForm.ShowXForm(XFormID,modal,StrPas(EventsNameSpace));
end;
procedure TMyMethodObject.mmiCloseXForm(XFormID:String); stdcall;
begin
XForm.CloseXForm(XFormID,StrPas(EventsNameSpace));
end;
procedure TMyMethodObject.mmiSetPropertyValue(nodeName:String;propName:String;newValue:String); stdcall;
var
nv:PChar;
myNode:TDataNode;
SourceAttrib:TNodeAttribute;
begin
// !! Must not pass Strings from dll to main, if they need to persist (when the dll is unloaded) - use PChar instead.
myNode:=FindDataNodeById(SystemNodeTree,nodename,StrPas(EventsNameSpace),true); //SystemNodeTree?
if myNode<>nil then
begin
nv:=PChar(newValue);
EditAttributevalue(myNode,propName,nv);
if (myNode.NodeType='TXCompositeIntf')
or (myNode.NodeType='TXComposite') then
begin
CompositePropertyChanged(myNode,propName);
end;
end;
end;
procedure TMyMethodObject.mmiSetPropertyValueIndexed(nodeName:String;propName:String;newValue:TStringArray; x,y:integer); stdcall;
var
myNode:TDataNode;
bitmapcomponent:TXBitMap;
begin
if propName='MapPixelArray' then
begin
myNode:=FindDataNodeById(UIRootNode,nodename,StrPas(EventsNameSpace),true); //SystemNodeTree?
if mynode<>nil then
begin
bitmapcomponent:=TXBitMap(myNode.ScreenObject);
bitmapComponent.SetMapPixelArraySection(newValue,x,y); //!!!! newValue is a TStringArray - does this cross the dll/main boundary safely??
end;
end
else
showmessage('SetPropertyValueIndexed not valid for property '+propName);
end;
function TMyMethodObject.mmiGetPropertyValue(nodeName:String;propName:String):string; stdcall;
var
myNode:TDataNode;
localStr:String;
attr:TNodeAttribute;
begin
myNode:=FindDataNodeById(UIRootNode,nodename,StrPas(EventsNameSpace),true); //SystemNodeTree?
localStr:='';
if mynode<>nil then
begin
attr:=mynode.GetAttributeAnyCase(propName);
if attr<>nil then
localStr:=attr.AttribValue
end;
result:=localStr;
end;
Function TMyMethodObject.mmiconfirm(Textmessage:string):boolean; stdcall;
begin
result:=XobjectInsp.XIDEConfirm(Textmessage);
end;
Function TMyMethodObject.mmiprompt(TextMessage,promptString:string):string; stdcall;
begin
//result:=StringUtils.prompt(TextMessage,promptString);
result:=XObjectInsp.XIDEPrompt(TextMessage,promptString);
end;
procedure TMyMethodObject.mmiCopyToClip(str:String); stdcall;
begin
myCopyToClip('String',str);
end;
function TMyMethodObject.mmiCopyFromClip(e:TEventStatus):String; stdcall;
// CopyFromClip is an async function (required for browser use), so it must be coded in the
// 'Init' section of an event handler. The result here is a blank string.
// The clipboard string is held in e.ReturnString, which cn be picked up in the
// 'Main' section of the event handler.
var
s:String;
myTag:TEventTimerTag;
begin
begin
if (e.InitRunning=false) then
showmessage('Warning: CopyFromClip must be called from the ''Init'' section of an event handler');
e.AsyncProcsRunning.add('CopyFromClip');
s := Clipboard.AsText;
e.ReturnString:=s;
// simulate an async function (as the JS equivalent is async)
HandleEvent(nil,'MemoPaste',SystemRootName,'',s); // to mirror the browser paste action
DSReturnToEvent(e,'CopyFromClip');
result:='';
end;
end;
function KeyValuesToVarArray(DSName,DSKeyValues:String;var keynames:String;var keys:TVarArray):Boolean;
var
keyvalues:TStringList;
keynodes:TNodesArray;
att:String;
ok:Boolean;
i:integer;
begin
ok:=true;
setlength(keys,0);
// DSKeyValues is a string delimited by ';' - one value per key field
keyvalues := stringsplit(DSKeyValues,';');
keynodes := DMGetKeyFields(DSName);
if keyvalues.count = length(keynodes) then
begin
i:=keyvalues.count;
setlength(keys,i);
keynames:='';
for i:=0 to keyvalues.count-1 do
begin
if i>0 then keynames:=keynames+';';
keynames:=keynames+keynodes[i].NodeName;
att:= keynodes[i].GetAttribute('AttribType',false).AttribType;
if att = 'Integer' then
keys[i] := StrToInt(KeyValues[i])
else if att = 'Float' then
keys[i] := StrToFloat(KeyValues[i])
else if att = 'String' then
keys[i] := KeyValues[i];
end;
end
else
begin
ok:=false;
end;
result:=ok;
end;
function TMyMethodObject.mmiDSFetchRow(e:TEventStatus;DSName:String;DSKeyValues:String):Boolean; stdcall;
// DSFetchRow is an async function (required for browser use), so it must be coded in the
// 'Init' section of an event handler. The result here is a boolean.
// The fetched data object is held in e.AsyncReturnObject, which cn be picked up in the
// 'Main' section of the event handler.
var
ok:boolean;
i:integer;
s,keynames:String;
keys:TVarArray;
begin
ok:=true;
if (e.InitRunning=false) then
showmessage('Warning: DSFetchRow must be called from the ''Init'' section of an event handler');
e.AsyncProcsRunning.add('DSFetchRow');
ok:= KeyValuesToVarArray(DSName,DSKeyValues,keynames,keys);
if ok then
begin
// if e.ValueObject is nil, can we dynamically create it here???? type===DSName
//cls:=classes.GetClass('TDataNode');
//newob:=cls.Create; // works
//cls:=classes.getclass(DSName);
//newob := cls.Create; // doesn't work
ok:=DSGetIndexedRecordAsObject(DSName,'DSFetchRow',keynames,keys,e.ValueObject,e);
end;
result:=ok;
end;
function TMyMethodObject.mmiDSAppendRow(e:TEventStatus;DSName:String;recObject:TObject):Boolean; stdcall;
var
ok:boolean;
begin
if (e.InitRunning=false) then
showmessage('Warning: DSAppendRow must be called from the ''Init'' section of an event handler');
e.AsyncProcsRunning.add('DSAppendRow');
ok:=DSAppendRecordFromObject(DSName,'DSAppendRow',recObject,e);
result:=ok;
end;
function TMyMethodObject.mmiDSDeleteRow(e:TEventStatus;DSName:String;DSKeyValues:String):Boolean; stdcall;
var
ok:boolean;
keynames:String;
keys:TVarArray;
begin
if (e.InitRunning=false) then
showmessage('Warning: DSDeleteRow must be called from the ''Init'' section of an event handler');
e.AsyncProcsRunning.add('DSDeleteRow');
ok:= KeyValuesToVarArray(DSName,DSKeyValues,keynames,keys);
if ok then
ok:=DSDeleteARow(e,DSName,'DSDeleteRow',keynames,keys);
result:=ok;
end;
function TMyMethodObject.mmiDSDeleteAllRows(e:TEventStatus;DSName:String):Boolean; stdcall;
var
ok:boolean;
begin
if (e.InitRunning=false) then
showmessage('Warning: DSDeleteAllRows must be called from the ''Init'' section of an event handler');
e.AsyncProcsRunning.add('DSDeleteAllRows');
ok:=DSEmptyDataset(e,DSName,'DSDeleteAllRows');
result:=ok;
end;
(* function TMyMethodObject.mmiDSDatasetToString(e:TEventStatus;dsName:String):Boolean; stdcall;
var
ok:Boolean;
begin
if (e.InitRunning=false) then
showmessage('Warning: DSDatasetToString must be called from the ''Init'' section of an event handler');
e.AsyncProcsRunning.add('DSDatasetToString');
ok:=DSDataToStringAsync(e,dsName);
result:=ok;
end;
*)
procedure TMyMethodObject.mmiLoadTableFromExcelCopy(TableName,CopiedString:String); stdcall;
var
myNode:TDataNode;
begin
myNode:=FindDataNodeById(UIRootNode,TableName,StrPas(EventsNameSpace),true); //SystemNodeTree?
if (mynode<>nil) and (myNode.NodeType='TXTable') then
begin
TXTable(myNode.ScreenObject).LoadTableFromExcelCopy(CopiedString);
end;
end;
function TMyMethodObject.mmiGetTableDataForExcel(TableName:String):String; stdcall;
var
myNode:TDataNode;
begin
result:='';
myNode:=FindDataNodeById(UIRootNode,TableName,StrPas(EventsNameSpace),true); //SystemNodeTree?
if (mynode<>nil) and (myNode.NodeType='TXTable') then
begin
result:=TXTable(myNode.ScreenObject).GetTableDataForExcel;
end;
end;
procedure TMyMethodObject.mmiLoadTableFromNumArray(TableName:String; NumArray:T2DNumArray); stdcall;
var
myNode:TDataNode;
begin
myNode:=FindDataNodeById(UIRootNode,TableName,StrPas(EventsNameSpace),true); //SystemNodeTree?
if (mynode<>nil) and (myNode.NodeType='TXTable') then
begin
TXTable(myNode.ScreenObject).LoadTableFromNumArray(NumArray);
end;
end;
procedure TMyMethodObject.mmiLoadTableFromStringArray(TableName:String; StrArray:T2DStringArray); stdcall;
var
myNode:TDataNode;
begin
myNode:=FindDataNodeById(UIRootNode,TableName,StrPas(EventsNameSpace),true); //SystemNodeTree?
if (mynode<>nil) and (myNode.NodeType='TXTable') then
begin
TXTable(myNode.ScreenObject).LoadTableFromStringArray(StrArray);
end;
end;
function TMyMethodObject.mmiGetTableDataArray(TableName:String;SkipHeader:Boolean):T2DStringArray; stdcall;
var
myNode:TDataNode;
arr:T2DStringArray;
begin
myNode:=FindDataNodeById(UIRootNode,TableName,StrPas(EventsNameSpace),true); //SystemNodeTree?
if (mynode<>nil) and (myNode.NodeType='TXTable') then
begin
arr:=TXTable(myNode.ScreenObject).GetCellsAsArray(SkipHeader);
end;
result:=arr;
end;
procedure TMyMethodObject.mmiDoEvent(EventType,NodeId,myValue:String); stdcall;
var
mv:PChar;
begin
// !! Must not pass Strings from dll to main, if they need to persist (when the dll is unloaded) - use PChar instead.
mv:=PChar(myValue);
handleEvent(nil,EventType,nodeId,StrPas(EventsNameSpace),mv);
end;
procedure TMyMethodObject.mmiMoveComponent(nodeId:string;NewParentId:string); stdcall;
begin
OIMoveItem(nodeId,StrPas(EventsNameSpace),NewParentId);
end;
procedure TMyMethodObject.mmiCopyComponent(nodeId,NewParentId,NewName:string); stdcall;
var
nm:PChar;
begin
// !! Must not pass Strings from dll to main, if they need to persist (when the dll is unloaded) - use PChar instead.
nm:=PChar(NewName);
OICopyToNewParent(nodeId,StrPas(EventsNameSpace),NewParentId,nm);
end;
function TMyMethodObject.mmiDeleteComponent(nodeId:string;ShowNotFoundMsg:Boolean=true;ShowConfirm:Boolean=true):Boolean; stdcall;
var
Deleted:Boolean;
begin
Deleted:=OIDeleteItem(nodeId,StrPas(EventsNameSpace),ShowNotFoundMsg,ShowConfirm);
result:=Deleted;
end;
procedure TMyMethodObject.mmiDeleteSelectedTreeNode(TreeName:string); stdcall;
var
myNode:TDataNode;
begin
myNode:=FindDataNodeById(UIRootNode,TreeName,StrPas(EventsNameSpace),true); //SystemNodeTree?
if (mynode<>nil) and (myNode.NodeType='TXTree') then
begin
TXTree(myNode.ScreenObject).DeleteSelectedNode;
end;
end;
procedure TMyMethodObject.mmiSetGPUParamNumValue(GPUName,pName:String;pValue:TNumArray); stdcall;
var
myNode:TDataNode;
begin
//showmessage('mmiSetGPUParamNumValue GPUName='+GPUName);
myNode:=FindDataNodeById(UIRootNode,GPUName,StrPas(EventsNameSpace),true); //SystemNodeTree?
if (mynode<>nil) and (myNode.NodeType='TXGPUCanvas') then
begin
TXGPUCanvas(myNode.ScreenObject).SetParamNumValue(pName,pValue,true);
end;
end;
procedure TMyMethodObject.mmiSetGPUParam2DNumValue(GPUName,pName:String;pValue:T2DNumArray); stdcall;
var
myNode:TDataNode;
begin
//showmessage('mmiSetGPUParam2DNumValue GPUName='+GPUName);
myNode:=FindDataNodeById(UIRootNode,GPUName,StrPas(EventsNameSpace),true); //SystemNodeTree?
if (mynode<>nil) and (myNode.NodeType='TXGPUCanvas') then
begin
TXGPUCanvas(myNode.ScreenObject).SetParam2DNumValue(pName,pValue,true);
end;
end;
procedure TMyMethodObject.mmiSetGPUConstIntValue(GPUName,pName:String;pValue:integer); stdcall;
var
myNode:TDataNode;
begin
//showmessage('mmiSetGPUConstIntValue GPUName='+GPUName);
myNode:=FindDataNodeById(UIRootNode,GPUName,StrPas(EventsNameSpace),true); //SystemNodeTree?
if (mynode<>nil) and (myNode.NodeType='TXGPUCanvas') then
begin
TXGPUCanvas(myNode.ScreenObject).SetConstIntValue(pName,pValue);
end;
end;
function TMyMethodObject.mmiGetGPUConstIntValue(GPUName,pName:String):integer; stdcall;
var
myNode:TDataNode;
cval:integer;
begin
cval:=0;
//showmessage('mmiSetGPUConstIntValue GPUName='+GPUName);
myNode:=FindDataNodeById(UIRootNode,GPUName,StrPas(EventsNameSpace),true); //SystemNodeTree?
if (mynode<>nil) and (myNode.NodeType='TXGPUCanvas') then
begin
cval:=TXGPUCanvas(myNode.ScreenObject).GetConstIntValue(pName);
end;
result:=cval;
end;
function TMyMethodObject.mmiGetGPUParamNumValue(GPUName,pName:String):TNumArray; stdcall;
var
myNode:TDataNode;
begin
result:=nil;
//showmessage('mmiSetGPUParamNumValue GPUName='+GPUName);
myNode:=FindDataNodeById(UIRootNode,GPUName,StrPas(EventsNameSpace),true); //SystemNodeTree?
if (mynode<>nil) and (myNode.NodeType='TXGPUCanvas') then
begin
result:=TXGPUCanvas(myNode.ScreenObject).GetParamNumValue(pName);
end;
end;
function TMyMethodObject.mmiGetGPUParam2DNumValue(GPUName,pName:String):T2DNumArray; stdcall;
var
myNode:TDataNode;
begin
result:=nil;
//showmessage('mmiSetGPUParamNumValue GPUName='+GPUName);
myNode:=FindDataNodeById(UIRootNode,GPUName,StrPas(EventsNameSpace),true); //SystemNodeTree?
if (mynode<>nil) and (myNode.NodeType='TXGPUCanvas') then
begin
result:=TXGPUCanvas(myNode.ScreenObject).GetParam2DNumValue(pName);
end;
end;
procedure TMyMethodObject.mmiStartMain(e:TEventStatus); stdcall;
begin
HandleEvent(e,e.EventType,e.NodeId,e.NameSpace,'');
end;
procedure TMyMethodObject.mmiShowBusy(e:TEventStatus); stdcall;
begin
if (e.InitRunning=false) then
showmessage('Warning: ShowBusy should be called from the ''Init'' section of an event handler');
Screen.Cursor := crHourglass;
end;
procedure TMyMethodObject.mmiHideBusy; stdcall;
begin
Screen.Cursor := crDefault;
end;
procedure TMyMethodObject.mmiProcessMessages; stdcall;
begin
Application.ProcessMessages;
end;
function TMyMethodObject.mmiUserSystemAsString():String; stdcall;
var
SystemString:String;
begin
SystemString:=BuildSystemString(false);
result:=SystemString;
end;
procedure TMyMethodObject.mmiLoadUserSystemString(SystemString:String); stdcall;
begin
// !! Have to switch system to design mode first
// (because there are on-going structures and data in run mode that would result in data corruption
// eg. the current events dll, built from user code in the system,
// and data for sourced attributes)
if not DesignMode then
showmessage('Cannot load system string - switch to Design Mode first')
else
begin
DoSystemLoad(SystemString,'');
end;
end;
procedure TMyMethodObject.mmiConsoleLog(txt:String); stdcall;
//var
// oldtxt:String;
begin
// oldtxt:=mmiGetPropertyValue('XMemo1','ItemValue');
// mmiSetPropertyValue('XMemo1','ItemValue',oldtxt+LineEnding+txt);
ConsoleString:=ConsoleString + txt + LineEnding;
end;
function TMyMethodObject.mmiArray2DToString(arr:T2DNumArray):String; stdcall;
var
str:string;
begin
str:=StringUtils.Num2DArrayToString(arr);
result:=str;
end;
function TMyMethodObject.mmiGetGPUPixelArray(GPUName:String):T3DNumArray; stdcall;
var
myNode:TDataNode;
begin
result:=nil;
myNode:=FindDataNodeById(UIRootNode,GPUName,StrPas(EventsNameSpace),true); //SystemNodeTree?
if (mynode<>nil) and (myNode.NodeType='TXGPUCanvas') then
begin
{$ifdef Chromium}
result:=JsonStringTo3DNumArray(TXGPUCanvas(myNode.ScreenObject).GPUOutputString);
{$else}
{$endif}
end;
end;
function TMyMethodObject.mmiGetGPUPixelArrayAsString(GPUName:String):String; stdcall;
var
myNode:TDataNode;
begin
result:='';
myNode:=FindDataNodeById(UIRootNode,GPUName,StrPas(EventsNameSpace),true); //SystemNodeTree?
if (mynode<>nil) and (myNode.NodeType='TXGPUCanvas') then
begin
{$ifdef Chromium}
result:=TXGPUCanvas(myNode.ScreenObject).GPUOutputString;
{$else}
{$endif}
end;
end;
function TMyMethodObject.mmiGetGPUStageArray(GPUName:String):T3DNumArray; stdcall;
var
myNode:TDataNode;
begin
result:=nil;
myNode:=FindDataNodeById(UIRootNode,GPUName,StrPas(EventsNameSpace),true); //SystemNodeTree?
if (mynode<>nil) and (myNode.NodeType='TXGPUCanvas') then
begin
{$ifdef Chromium}
if length( TXGPUCanvas(myNode.ScreenObject).GPUStageArray) > 0 then
result:=TXGPUCanvas(myNode.ScreenObject).GPUStageArray
else
result:=JsonStringTo3DNumArray(TXGPUCanvas(myNode.ScreenObject).GPUStageString);
{$else}
{$endif}
end;
end;
function TMyMethodObject.mmiGetGPUStageArrayAsString(GPUName:String):String; stdcall;
var
myNode:TDataNode;
begin
result:='';
//showmessage('mmiGetGPUStageArray GPUName='+GPUName);
myNode:=FindDataNodeById(UIRootNode,GPUName,StrPas(EventsNameSpace),true); //SystemNodeTree?
if (mynode<>nil) and (myNode.NodeType='TXGPUCanvas') then
begin
{$ifdef Chromium}
if TXGPUCanvas(myNode.ScreenObject).GPUStageString<>'' then
result:=TXGPUCanvas(myNode.ScreenObject).GPUStageString
else
result:=Num3DArrayToJsonString(TXGPUCanvas(myNode.ScreenObject).GPUStageArray);
{$else}
{$endif}
end;
end;
function TMyMethodObject.mmiGetGPUInitStageArray(GPUName:String):T3DNumArray; stdcall;
var
myNode:TDataNode;
begin
result:=nil;
myNode:=FindDataNodeById(UIRootNode,GPUName,StrPas(EventsNameSpace),true); //SystemNodeTree?
if (mynode<>nil) and (myNode.NodeType='TXGPUCanvas') then
begin
{$ifdef Chromium}
result:=JsonStringTo3DNumArray(myNode.GetAttribute('InitStageData',false).AttribValue);
{$else}
{$endif}
end;
end;
procedure TMyMethodObject.mmiDebugStart; stdcall;
begin
end;
procedure TMyMethodObject.mmiRunPython(str:String); stdcall;
begin
{$ifdef Python}
try // example, on entry to run mode, some events may fire before the python scripts have been run, so function(s) might not exist yet
if PyScriptsExecuted then
PyExeString(str);
except
on E: Exception do
begin
//showmessage('Python error');
//raise; ////makes the whole thing fall over ....
end;
end;
{$endif}
end;
procedure TMyMethodObject.mmiSetImageSource(nm,str:String); stdcall;
begin
{$ifdef Python}
//!!!! do we need this here? (required on browser, not desktop??)
// on desktop, image is populated via the 'source' property on TXImage, which wants a file name.
// ...can this be done using a pdf-formatted string instead? (eg as returned from a python figure)
{$endif}
end;
procedure TMyMethodObject.mmiWobbleCEF(nm:String); stdcall;
var
fr:TXIFrame;
myNode:TDataNode;
begin
{$ifdef Chromium}
myNode:=FindDataNodeById(UIRootNode,nm,StrPas(EventsNameSpace),true); //SystemNodeTree?
if myNode<>nil then
begin
fr:=TXIframe(myNode.ScreenObject);
fr.Wobble;
end;
{$endif}
end;
procedure TMyMethodObject.mmiPyodideLoadPackage(nm:String); stdcall;
begin
// this method is applicable only in the browser environment with Pyodide.
// No action here.
end;
function TMyMethodObject.mmiPyodidePackageLoaded(nm:String):Boolean; stdcall;
begin
// this method is applicable only in the browser environment with Pyodide.
// Return True here.
result := true;
end;
begin
EventsNameSpace:=PChar('');
mmo := TMyMethodObject.Create();
Events.mmi:=IInterface(mmo);
TimerEventWrapper := TTimerEventWrapper.Create;
//DllEventTimer:=TTimer.Create(nil);
//DllEventTimer.Interval:=10;
//DllEventTimer.OnTimer:=@TimerEventWrapper.DoEventTimer;
//DllEventTimer.Enabled:=false;
{$endif}
end.