/// <summary>
/// Initializes a new instance of the FlowChart class.
/// </summary>
public FlowChart()
{
license = LicenseManager.Validate(typeof(FlowChart), this);
measureUnit = GraphicsUnit.Millimeter;
// set control styles for flicker-free redraw
SetStyle(ControlStyles.UserPaint, true);
SetStyle(ControlStyles.AllPaintingInWmPaint, true);
SetStyle(ControlStyles.Opaque, true);
SetStyle(ControlStyles.ResizeRedraw, true);
// we want to process keyboard input
SetStyle(ControlStyles.Selectable, true);
// init static objects
lock (syncRoot)
{
Arrow.initHeadTemplates();
CustomCursors.Init(new ResourceManager(
"MindFusion.FlowChartX.Cursors", typeof(ChartObject).Assembly));
}
mouseMoved = false;
boxFillColor = Color.FromArgb(220, 220, 255);
boxFrameColor = Color.Black;
arrowColor = Color.Black;
arrowTextStyle = ArrowTextStyle.Center;
arrowFillColor = Color.FromArgb(120, 220, 255);
tableFrameColor = Color.Black;
tableFillColor = Color.FromArgb(180, 160, 160);
penDashStyle = DashStyle.Solid;
penWidth = 0;
BackColor = Color.FromArgb(170, 170, 200);
// grid properties
alignToGrid = true;
showGrid = false;
gridColor = Color.FromArgb(140, 140, 150);
gridSizeX = 4;
gridSizeY = 4;
gridStyle = GridStyle.Points;
// shadows properties
shadowOffsetX = 1;
shadowOffsetY = 1;
shadowColor = Color.FromArgb(110, 110, 140);
shadowsStyle = ShadowsStyle.OneLevel;
activeMnpColor = Color.White;
selMnpColor = Color.FromArgb(170, 170, 170);
disabledMnpColor = Color.FromArgb(200, 0, 0);
textFormat = new StringFormat();
textFormat.Alignment = StringAlignment.Center;
textFormat.LineAlignment = StringAlignment.Center;
// Set some flags, because otherwise the serializer
// generates noncompilable code
textFormat.FormatFlags = StringFormatFlags.NoFontFallback;
imagePos = ImageAlign.Document;
boxStyle = BoxStyle.RoundedRectangle;
tableStyle = TableStyle.Rectangle;
boxPen = new Pen(boxFrameColor, penWidth);
boxBrush = new SolidBrush(boxFillColor);
boxBrush.AddRef();
arrowPen = new Pen(arrowColor, penWidth);
arrowBrush = new SolidBrush(arrowFillColor);
arrowBrush.AddRef();
tablePen = new Pen(tableFrameColor, penWidth);
tableBrush = new SolidBrush(tableFillColor);
tableBrush.AddRef();
exteriorBrush = null;
brush = new SolidBrush(BackColor);
brush.AddRef();
boxes = new BoxCollection();
controlHosts = new ControlHostCollection();
tables = new TableCollection();
arrows = new ArrowCollection();
selection = new Selection(this);
selectionOnTop = true;
groups = new GroupCollection();
zOrder = new ChartObjectCollection();
textColor = Color.Black;
arrowStyle = MindFusion.FlowChartX.ArrowStyle.Polyline;
arrowSegments = 1;
activeObject = null;
modificationStart = ModificationStyle.SelectedOnly;
autoHandlesObj = null;
autoAnchorsObj = null;
interaction = null;
scrollX = scrollY = 0;
zoomFactor = 100.0f;
allowRefLinks = true;
Behavior = BehaviorType.FlowChart;
arrowEndsMovable = true;
selectAfterCreate = true;
// init default custom draw properties
boxCustomDraw = CustomDraw.None;
tableCustomDraw = CustomDraw.None;
cellCustomDraw = CustomDraw.None;
arrowCustomDraw = CustomDraw.None;
restrObjsToDoc = RestrictToDoc.Intersection;
dynamicArrows = false;
arrowsSnapToBorders = false;
arrowsRetainForm = false;
arrowCascadeOrientation = Orientation.Auto;
curPointer = Cursors.Arrow;
curCannotCreate = Cursors.No;
curModify = Cursors.SizeAll;
curArrowStart = Cursors.Hand;
curArrowEnd = Cursors.Hand;
curArrowCannotCreate = Cursors.No;
curHorzResize = Cursors.SizeWE;
curVertResize = Cursors.SizeNS;
curMainDgnlResize = Cursors.SizeNWSE;
curSecDgnlResize = Cursors.SizeNESW;
curRotateShape = CustomCursors.Rotate;
panCursor = Cursors.NoMove2D;
tableRowsCount = 4;
tableColumnsCount = 2;
tableRowHeight = 6;
tableColWidth = 18;
tableCaptionHeight = 5;
tableCaption = "Table";
tableCellBorders = CellFrameStyle.System3D;
selHandleSize = 2;
showDisabledHandles = true;
arrowSelStyle = HandlesStyle.SquareHandles;
boxSelStyle = HandlesStyle.SquareHandles;
chostSelStyle = HandlesStyle.HatchHandles;
tableSelStyle = HandlesStyle.DashFrame;
recursiveExpand = false;
expandOnIncoming = false;
boxesExpandable = false;
tablesScrollable = false;
tablesExpandable = false;
controlHostsExpandable = false;
arrowHead = ArrowHead.Arrow;
arrowBase = ArrowHead.None;
arrowInterm = ArrowHead.None;
arrowHeadSize = 5;
arrowBaseSize = 5;
arrowIntermSize = 5;
ShowScrollbars = true;
DocExtents = new RectangleF(0, 0, 210, 297);
autoScroll = true;
autoScrDX = autoScrDY = 0;
dirty = false;
antiAlias = SmoothingMode.None;
textRendering = TextRenderingHint.SystemDefault;
sortGroupsByZ = false;
// tooltips
showToolTips = true;
toolTip = "";
toolTipCtrl = new ToolTip();
toolTipCtrl.Active = showToolTips;
shapeRotation = 0;
DefaultShape = ShapeTemplate.FromId("Cylinder");
inplaceEditAllowed = false;
inplaceObject = null;
nowEditing = false;
inplaceEditFont = (Font)Font.Clone();
inplaceAcceptOnEnter = false;
inplaceCancelOnEsc = true;
allowSplitArrows = false;
printOptions = new PrintOptions(this);
printOptions.EnableBackground = false;
printOptions.EnableBackgroundImage = false;
printOptions.PaintControls = true;
displayOptions = new PrintOptions(this);
renderOptions = displayOptions;
previewOptions = new PreviewOptions();
allowLinksRepeat = true;
showAnchors = ShowAnchors.Auto;
snapToAnchor = SnapToAnchor.OnCreate;
beginPrintHandler = new PrintEventHandler(this.BeginPrint);
printPageHandler = new PrintPageEventHandler(this.PrintPage);
printRect = new RectangleF(0, 0, 1, 1);
usePolyTextLt = false;
userAction = false;
tableLinkStyle = TableLinkStyle.Rows;
undoManager = new UndoManager(this);
defaultControlType = typeof(System.Windows.Forms.Button);
hostedCtrlMouseAction = HostMouseAction.SelectHost;
dummy = new DummyNode(this);
allowUnconnectedArrows = false;
allowUnanchoredArrows = true;
autoSizeDoc = MindFusion.FlowChartX.AutoSize.None;
panMode = false;
enableStyledText = false;
expandBtnPos = ExpandButtonPosition.OuterRight;
focusLost = false;
hitTestPriority = HitTestPriority.NodesBeforeArrows;
boxText = arrowText = "";
// arrow crossings
arrowCrossings = ArrowCrossings.Straight;
crossRadius = 1.5f;
redrawNonModified = false;
roundRectFactor = 1;
scriptHelper = new ScriptHelper(this);
// link routing options
routingOptions = new RoutingOptions(this);
routingGrid = new RoutingGrid(this);
routeArrows = false;
dontRouteForAwhile = false;
validityChecks = true;
_modifierKeyActions = new ModifierKeyActions();
middleButtonAction = MouseButtonAction.None;
forceCacheRedraw = false;
showHandlesOnDrag = true;
mergeThreshold = 0;
expandButtonAction = ExpandButtonAction.ExpandTreeBranch;
}
internal void printFlowChart(Graphics g, RectangleF pageRect)
{
renderOptions = printOptions;
nowPrinting = true;
g.SetClip(pageRect);
// fill the background
if (renderOptions.EnableBackground)
{
if (imagePos < ImageAlign.Document)
{
System.Drawing.Brush fillBrush = brush.CreateGDIBrush(pageRect);
g.FillRectangle(fillBrush, pageRect);
fillBrush.Dispose();
}
else
{
System.Drawing.Brush fillBrush = brush.CreateGDIBrush(
DocExtents, -DocExtents.Left, -DocExtents.Top);
g.FillRectangle(fillBrush, pageRect);
fillBrush.Dispose();
}
}
g.SmoothingMode = this.antiAlias;
g.TextRenderingHint = this.textRendering;
// print the background image
if (BackgroundImage != null && renderOptions.EnableBackgroundImage)
{
// Printing of back images occur only if ImageAlign.Document is set
if (imagePos < ImageAlign.Document)
{
Utilities.drawImage(g, BackgroundImage, pageRect, imagePos);
}
else
{
Utilities.drawImage(g, BackgroundImage, DocExtents,
(ImageAlign)(imagePos - ImageAlign.Document));
}
}
// draw shadows
if (renderOptions.EnableShadows &&
shadowsStyle == ShadowsStyle.OneLevel)
drawShadows(g, pageRect, false);
// draw all objects
foreach (ChartObject obj in zOrder)
{
if (obj != activeObject || !selectionOnTop)
{
RectangleF rc = obj.getRepaintRect(false);
if (!rc.IntersectsWith(pageRect))
continue;
if (renderOptions.EnableShadows &&
shadowsStyle == ShadowsStyle.ZOrder)
drawObjectWithShadow(g, obj, false);
else
drawObject(g, obj, false);
}
}
// draw the active object at the top
if (activeObject != null && selectionOnTop)
{
if (renderOptions.EnableShadows &&
shadowsStyle == ShadowsStyle.ZOrder)
drawObjectWithShadow(g, activeObject, true);
else
drawObject(g, activeObject, true);
}
renderOptions = displayOptions;
nowPrinting = false;
}
public void SetRenderOptions(PrintOptions options)
{
prevRenderOptions = renderOptions;
renderOptions = options;
}
public void ResetRenderOptions()
{
renderOptions = prevRenderOptions;
}
private void drawBack(Graphics g, Rectangle clip, bool toScreen, PrintOptions renderOptions)
{
if (imagePos < ImageAlign.Document)
{
// the background image does not scroll or scale, the brush shouldn't too
System.Drawing.Brush fillBrush = brush.CreateGDIBrush(ClientRectangle);
g.FillRectangle(fillBrush, clip);
fillBrush.Dispose();
}
else
{
if (toScreen)
{
// now drawing on the screen, include translation for
// the scroll X and Y position
setTransforms(g);
}
else
{
// exporting to bitmap; do not include translation, but just scaling
g.PageUnit = measureUnit;
g.PageScale = zoomFactor / 100F;
}
RectangleF rc = Utilities.deviceToDoc(g, clip);
Point pt = Utilities.docToDevice(g, new PointF(0, 0));
g.RenderingOrigin = pt;
// paint with exterior brush if applicable
bool paintExterior = exteriorBrush != null && toScreen &&
!docExtents.Contains(rc) && !exteriorBrush.equals(BackBrush);
if (paintExterior)
{
System.Drawing.Brush extBrush = exteriorBrush.CreateGDIBrush(
docExtents, -docExtents.Left, -docExtents.Top);
// paint the exterior to the left
if (rc.Left < docExtents.Left)
{
RectangleF ext = rc;
ext.Width = docExtents.Left - ext.Left;
g.FillRectangle(extBrush, ext);
}
// paint the exterior to the top
if (rc.Top < docExtents.Top)
{
RectangleF ext = rc;
ext.Height = docExtents.Top - ext.Top;
g.FillRectangle(extBrush, ext);
}
// paint the exterior to the right
if (rc.Right > docExtents.Right)
{
RectangleF ext = rc;
ext.X = Math.Max(rc.Left, docExtents.Right);
ext.Width = rc.Right - ext.Left;
g.FillRectangle(extBrush, ext);
}
// paint the exterior to the bottom
if (rc.Bottom > docExtents.Bottom)
{
RectangleF ext = rc;
ext.Y = Math.Max(rc.Top, docExtents.Bottom);
ext.Height = rc.Bottom - ext.Top;
g.FillRectangle(extBrush, ext);
}
extBrush.Dispose();
rc.Intersect(docExtents);
}
// paint the document area with BackBrush
System.Drawing.Brush fillBrush = brush.CreateGDIBrush(
docExtents, -docExtents.Left, -docExtents.Top);
g.FillRectangle(fillBrush, rc);
fillBrush.Dispose();
unsetTransforms(g);
}
}
