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Simba/trunk/Projects/SAMufasaGUI/colourhistory.pas
2010-01-26 04:47:07 +00:00

560 lines
14 KiB
ObjectPascal

{
This file is part of the Mufasa Macro Library (MML)
Copyright (c) 2009 by Raymond van Venetië and Merlijn Wajer
MML is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
MML 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. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with MML. If not, see <http://www.gnu.org/licenses/>.
See the file COPYING, included in this distribution,
for details about the copyright.
Colour History window for Mufasa Macro Library
}
unit colourhistory;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils, FileUtil, LResources, Forms, Controls, Graphics, Dialogs,
ComCtrls, StdCtrls, ExtCtrls, Menus, DOM, XMLWrite, XMLRead;
type
TColourPickerObject = class(TObject)
constructor Create(C: Integer; P: TPoint; N: String);
destructor Destroy; override;
public
Colour: Integer;
Pos: TPoint;
Name: String;
end;
{ TColourHistoryForm }
TColourHistoryForm = class(TForm)
CH_RGB_Label: TLabel;
CHImages: TImageList;
CHMainMenu: TMainMenu;
CHFile: TMenuItem;
CHHelp: TMenuItem;
CHClear: TMenuItem;
CHLoad: TMenuItem;
CHSave: TMenuItem;
CHAbout: TMenuItem;
OkButton: TButton;
ColourValue: TEdit;
CoordValue: TLabel;
ColourImage: TImage;
CHOpenDialog: TOpenDialog;
PickNewColourButton: TButton;
DeleteButton: TButton;
CHSaveDialog: TSaveDialog;
SelectionName: TEdit;
ColourTree: TTreeView;
procedure CHAboutClick(Sender: TObject);
procedure ChangeName(Sender: TObject);
procedure CHClearClick(Sender: TObject);
procedure CHLoadClick(Sender: TObject);
procedure ColourTreeChange(Sender: TObject; Node: TTreeNode);
procedure ColourTreeDragDrop(Sender, Source: TObject; X, Y: Integer);
procedure ColourTreeDragOver(Sender, Source: TObject; X, Y: Integer;
State: TDragState; var Accept: Boolean);
procedure DeleteSelected(Sender: TObject);
procedure AddColObj(c: TColourPickerObject; autoName: Boolean);
procedure CHSaveClick(Sender: TObject);
procedure FormCreate(Sender: TObject);
procedure OkButtonClick(Sender: TObject);
procedure SelectionNameKeyPress(Sender: TObject; var Key: char);
procedure SetCHShowMenu(Sender: TObject);
procedure UnSetCHShowMenu(Sender: TObject);
private
TreeChanged: Boolean;
{ private declarations }
protected
procedure AddColObj(c: TColourPickerObject);
procedure SetNodeBitmap(N: TTreeNode);
procedure SaveToXML(s: String);
procedure XML2Tree(XMLDoc: TXMLDocument);
public
constructor Create(TheOwner: TComponent); override;
destructor Destroy; override;
public
IndexSelected: Integer;
{ public declarations }
end;
var
ColourHistoryForm: TColourHistoryForm;
implementation
uses
colour_conv, TestUnit, lclintf, lcltype;
constructor TColourPickerObject.Create(C: Integer; P: TPoint; N: String);
begin
inherited Create;
Self.Colour := C;
Self.Pos := P;
Self.Name:= N;
end;
destructor TColourPickerObject.Destroy;
begin
inherited Destroy;
end;
{ TColourHistoryForm }
procedure TColourHistoryForm.AddColObj(c: TColourPickerObject; autoName: Boolean);
begin
if autoName then
begin
// TODO: Proper name
c.Name := IntToStr(c.Colour);
end;
Self.AddColObj(c);
end;
procedure TColourHistoryForm.SetNodeBitmap(N: TTreeNode);
var
bmp: TBitmap;
begin
bmp:=TBitmap.Create;
bmp.SetSize(16,16);
if(Assigned(n.Data)) then
bmp.Canvas.Brush.Color:=TColourPickerObject(n.Data).Colour;
bmp.Canvas.Rectangle(0,0,16,16);
n.ImageIndex:=CHImages.Add(bmp, nil);
n.SelectedIndex:=n.ImageIndex;
bmp.Free;
end;
procedure TColourHistoryForm.AddColObj(c: TColourPickerObject);
var
it: TTreeNode;
begin
TreeChanged:=True;
it := ColourTree.Items.Add(nil, c.Name);
it.Data := c;
ColourTree.Selected := it;
SetNodeBitmap(it);
end;
procedure WalkDeleteTree(Node: TTreeNode; Img: TImageList);
var
N: TTreeNode;
begin
N := Node.GetFirstChild;
while assigned(n) do
begin
If Assigned(N.Data) then
TColourPickerObject(N.Data).Free;
WriteLn('Deleting ImageIndex: ' + IntToStr(n.ImageIndex) + '; Text: ' + N.Text);
// yeah....
try
if n.ImageIndex <> -1 Then
Img.Delete(n.ImageIndex);
except end;
WalkDeleteTree(n, img);
n := n.GetNextSibling;
end;
end;
procedure TColourHistoryForm.DeleteSelected(Sender: TObject);
var
e: TTreeNodesEnumerator;
begin
if (Assigned(ColourTree.Selected)) then
begin
if Assigned(ColourTree.Selected.Data) then
TColourPickerObject(ColourTree.Selected.Data).Free;
WalkDeleteTree(ColourTree.Selected, CHImages);
WriteLn('Deleting ImageIndex: ' + IntToStr(ColourTree.Selected.ImageIndex) + '; Text: ' + ColourTree.Selected.Text);
if ColourTree.Selected.ImageIndex <> -1 then
CHImages.Delete(ColourTree.Selected.ImageIndex);
ColourTree.Selected.Delete;
TreeChanged := True;
{ Now, we have to recreate all images and their indices... Since the TImageList
fiddles with it's indices if one is deleted... Wtf? }
CHImages.Clear;
e := ColourTree.Items.GetEnumerator;
while e.MoveNext do
SetNodeBitmap(e.Current);
end;
end;
procedure WriteXMLData(n: TTreeNode;
XMLNode: TDOMNode; XMLDoc: TXMLDocument;
var XMLChild: TDOMNode; var C: Integer);
var
DDataNode, DataNode, Data: TDOMNode;
begin
XMLChild := XMLDoc.CreateElement('Item' + IntToStr(C));
Inc(C);
XMLNode.AppendChild(XMLChild);
DDataNode := XMLDoc.CreateElement('Data');
XMLChild.AppendChild(DDataNode);
DataNode := XMLDoc.CreateElement('Name');
DDataNode.AppendChild(DataNode);
Data := XMLDoc.CreateTextNode(TColourPickerObject(n.Data).Name);
DataNode.AppendChild(Data);
DataNode := XMLDoc.CreateElement('Colour');
DDataNode.AppendChild(DataNode);
Data := XMLDoc.CreateTextNode(IntToStr(TColourPickerObject(n.Data).Colour));
DataNode.AppendChild(Data);
DataNode := XMLDoc.CreateElement('CoordX');
DDataNode.AppendChild(DataNode);
Data := XMLDoc.CreateTextNode(IntToStr(TColourPickerObject(n.Data).Pos.X));
DataNode.AppendChild(Data);
DataNode := XMLDoc.CreateElement('CoordY');
DDataNode.AppendChild(DataNode);
Data := XMLDoc.CreateTextNode(IntToStr(TColourPickerObject(n.Data).Pos.Y));
DataNode.AppendChild(Data);
end;
procedure WalkTree(Node: TTreeNode; XMLNode: TDOMNode; XMLDoc: TXMLDocument;
var C: Integer);
var
N: TTreeNode;
XMLChild, DDataNode, DataNode, Data: TDOMNode;
begin
N := Node.GetFirstChild;
while assigned(n) do
begin
WriteXMLData(n, XMLNode, XMLDoc, XMLChild, C);
WalkTree(n, XMLChild, XMLDoc, C);
n := n.GetNextSibling;
end;
end;
procedure TColourHistoryForm.SaveToXML(s: String);
var
XMLDoc: TXMLDocument;
RootNode, XMLChild: TDOMNode;
C, i: Integer;
begin
XMLDoc := TXMLDocument.Create;
RootNode := XMLDoc.CreateElement('Tree');
XMLDoc.AppendChild(RootNode);
RootNode := XMLDoc.DocumentElement;
C := 0;
writeln(Colourtree.Items.TopLvlCount);
for i := 0 to Colourtree.Items.TopLvlCount -1 do
begin
WriteXMLData(ColourTree.Items.TopLvlItems[i], RootNode, XMLDoc, XMLChild, C);
WalkTree(ColourTree.Items.TopLvlItems[i], XMLChild, XMLDoc, C);
end;
WriteXMLFile(XMLDoc, s);
XMLDoc.Free;
end;
procedure TColourHistoryForm.ColourTreeChange(Sender: TObject; Node: TTreeNode);
var
r,g,b:integer;
begin
if not Assigned(Node) then
exit;
if not Node.Selected then
exit;
{ This only occurs when we have manually added an item with the Form Editor }
if not Assigned(Node.Data) then
exit;
colour_conv.ColorToRGB(TColourPickerObject(Node.Data).Colour, r, g, b);
{ Change Form Text / Values }
ColourValue.Caption := IntToStr(TColourPickerObject(Node.Data).Colour);
CoordValue.Caption := 'Coords: ' + IntToStr(TColourPickerObject(Node.Data).Pos.X) +
', ' + IntToStr(TColourPickerObject(Node.Data).Pos.Y);
SelectionName.Text := TColourPickerObject(Node.Data).Name;
CH_RGB_Label.Caption:=Format('RGB:%d,%d,%d', [r,g,b]);
{ Draw the Image }
ColourImage.Canvas.Brush.Color := TColourPickerObject(Node.Data).Colour;
ColourImage.Canvas.Rectangle(0,0,ColourImage.Width, ColourImage.Height);
if Self.Visible then
begin
try
SelectionName.SetFocus;
finally
end;
end;
end;
procedure TColourHistoryForm.ColourTreeDragDrop(Sender, Source: TObject; X,
Y: Integer);
Var
Node: TTreeNode;
begin
if Sender <> ColourTree then
Exit;
Node := ColourTree.GetNodeAt(X, Y);
if not assigned(ColourTree.Selected) then
begin
writeln('No valid node is currently selected');
exit;
end;
if not assigned(Node) then
begin
ColourTree.Selected.MoveTo(nil, naAdd);
TreeChanged:=True;
exit;
end;
ColourTree.Selected.MoveTo(Node, naAddChild);
TreeChanged:=True;
writeln('Dragging from: ' + ColourTree.Selected.Text);
writeln('Dragging to: ' + Node.Text);
end;
procedure TColourHistoryForm.ColourTreeDragOver(Sender, Source: TObject; X,
Y: Integer; State: TDragState; var Accept: Boolean);
begin
Accept:=True;
end;
procedure TColourHistoryForm.ChangeName(Sender: TObject);
begin
if not Assigned(ColourTree.Selected) then
begin
WriteLn('We double clicked but have nothing Selected?');
exit;
end;
ColourTree.Selected.Text := SelectionName.Text;
TColourPickerObject(ColourTree.Selected.Data).Name := SelectionName.Text;
end;
procedure TColourHistoryForm.CHClearClick(Sender: TObject);
begin
TreeChanged:=False;
ColourTree.BeginUpdate;
ColourTree.Items.Clear;
CHImages.Clear;
ColourTree.EndUpdate;
end;
//heavily modded from http://wiki.lazarus.freepascal.org/XML_Tutorial
procedure TColourHistoryForm.XML2Tree(XMLDoc: TXMLDocument);
var
iNode: TDOMNode;
procedure ProcessNode(Node: TDOMNode; TreeNode: TTreeNode);
var
cNode, dNode: TDOMNode;
OP: TColourPickerObject;
pos: TPoint;
Colour: Integer;
Name: String;
begin
if Node = nil then Exit;
If Node.NodeName = 'Data' Then
exit;
TreeNode := ColourTree.Items.AddChild(TreeNode, 'ERROR');
writeln(Node.NodeName);
cNode := Node.FindNode('Data');
if Assigned(cNode) then
begin
dNode := cNode.FindNode('Name');
if assigned(dNode) then
Name := dNode.TextContent
else
Name := 'Error';
dNode := cNode.FindNode('Colour');
if assigned(dNode) then
Colour := StrToIntDef(dNode.TextContent, -1);
dNode := cNode.FindNode('CoordX');
if assigned(dNode) then
Pos.X := StrToIntDef(dNode.TextContent, -1);
dNode := cNode.FindNode('CoordY');
if assigned(dNode) then
Pos.Y := StrToIntDef(dNode.TextContent, -1);
OP := TColourPickerObject.Create(Colour, Pos, Name);
TreeNode.Text := Name;
TreeNode.Data := Pointer(OP);
SetNodeBitmap(TreeNode);
end;
// Goes to the child node
cNode := Node.FirstChild;
// Processes all child nodes
while cNode <> nil do
begin
ProcessNode(cNode, TreeNode);
cNode := cNode.NextSibling;
end;
end;
begin
iNode := XMLDoc.DocumentElement.FirstChild;
while iNode <> nil do
begin
ProcessNode(iNode, nil); // Recursive
iNode := iNode.NextSibling;
end;
end;
procedure TColourHistoryForm.CHLoadClick(Sender: TObject);
var
XMLDoc: TXMLDocument;
begin
if TreeChanged then
begin
case MessageBox(0,pchar('Do you want to save the colours?'), Pchar('Colours have been modified.'),
MB_YESNOCANCEL or MB_ICONQUESTION) of
IDCANCEL :
Exit;
IDYES :
begin
if CHSaveDialog.Execute then
ColourTree.SaveToFile(CHSaveDialog.FileName)
else
Exit;
end;
end;
end;
if CHOpenDialog.Execute then
if FileExists(CHOpenDialog.FileName) then
begin
ReadXMLFile(XMLDoc, CHOpenDialog.FileName);
// Clear Tree and Images
ColourTree.BeginUpdate;
ColourTree.Items.Clear;
CHImages.Clear;
XML2Tree(XMLDoc);
ColourTree.EndUpdate;
TreeChanged:=False;
XMLDoc.Free;
end;
end;
procedure TColourHistoryForm.CHAboutClick(Sender: TObject);
begin
end;
constructor TColourHistoryForm.Create(TheOwner: TComponent);
begin
inherited Create(TheOwner);
PickNewColourButton.OnClick:= @Form1.ButtonPickClick;
end;
destructor TColourHistoryForm.Destroy;
begin
PickNewColourButton.OnClick := nil;
inherited Destroy;
end;
procedure TColourHistoryForm.CHSaveClick(Sender: TObject);
begin
if CHSaveDialog.Execute then
begin
SaveToXML(CHSaveDialog.FileName);
TreeChanged:=False;
end;
end;
procedure TColourHistoryForm.FormCreate(Sender: TObject);
begin
TreeChanged:=False;
end;
procedure TColourHistoryForm.OkButtonClick(Sender: TObject);
begin
Self.Close;
end;
procedure TColourHistoryForm.SelectionNameKeyPress(Sender: TObject;
var Key: char);
begin
if key = #13 then
begin
key := #0;
Self.close;
end;
end;
procedure TColourHistoryForm.SetCHShowMenu(Sender: TObject);
begin
Form1.MenuItemColourHistory.Checked := True;
end;
procedure TColourHistoryForm.UnSetCHShowMenu(Sender: TObject);
begin
Form1.MenuItemColourHistory.Checked := False;
end;
initialization
{$I colourhistory.lrs}
end.