Manages the editor window allowing user interaction with the various tools. More...

#include <Editor.h>

Inheritance diagram for Editor:

Collaboration diagram for Editor:

Public Types
enum	ToolMode { MoveTo, LineTo, CubicTo, Rectangle, Ellipse, Character }

Public Slots
void	selectTool (QAction *action)

void	charSelected (const QChar &character)

void	enableSnap (bool enabled)

void	selectFilled (bool enabled)

void	selectFillRule (QAction *action)

void	selectCapStyle (QAction *action)

void	selectJoinStyle (QAction *action)

void	increaseLineWidth ()

void	decreaseLineWidth ()

void	rotateLeft ()

void	rotateRight ()

void	flipHorizontal ()

void	flipVertical ()

void	scalePreferred ()

void	readSettings ()

Signals
void	message (const QString &text)

void	minLineWidth (bool reached)

void	maxLineWidth (bool reached)

Public Member Functions
	Editor (QWidget *parent=0)

	~Editor ()

QPair< qint16, Symbol >	symbol ()

void	setSymbol (const QPair< qint16, Symbol > &pair)

QPainterPath	moveTo (const QPointF &to)

QPainterPath	lineTo (const QPointF &to)

QPainterPath	cubicTo (const QPointF &control1, const QPointF &control2, const QPointF &to)

QPainterPath	addRectangle (const QPointF &from, const QPointF &to)

QPainterPath	addEllipse (const QPointF &from, const QPointF &to)

void	removeLast (const QPainterPath &path)

void	movePoint (int index, const QPointF &to)

void	rotatePointsLeft ()

void	rotatePointsRight ()

void	flipPointsHorizontal ()

void	flipPointsVertical ()

void	setFilled (bool filled)

void	setFillRule (Qt::FillRule rule)

void	setCapStyle (Qt::PenCapStyle capStyle)

void	setJoinStyle (Qt::PenJoinStyle joinStyle)

void	setLineWidth (double width)

QPainterPath	setPath (const QPainterPath &path)

void	clear ()

QUndoStack *	undoStack ()

Protected Member Functions
void	mousePressEvent (QMouseEvent *event)

void	mouseMoveEvent (QMouseEvent *event)

void	mouseReleaseEvent (QMouseEvent *event)

void	paintEvent (QPaintEvent *event)

void	keyPressEvent (QKeyEvent *event)

Private Member Functions
void	addPoint (const QPointF &point)

QPointF	snapPoint (const QPoint &point) const

QPair< bool, QPointF >	snapToGrid (const QPoint &point) const

QPair< bool, QPointF >	snapToGuide (const QPointF &point) const

QPointF	toSymbol (const QPoint &point) const

QPoint	toScreen (const QPointF &point) const

bool	node (const QPointF &point) const

QPair< bool, int >	nodeUnderCursor (const QPointF &point) const

void	deconstructPainterPath ()

void	constructPainterPath ()

bool	constructGuides (const QPointF &to)

void	constructLineGuides (const QPointF &from, const QPointF &to)

void	constructCircleGuides (const QPointF &from, const QPointF &to)

QLineF	projected (const QLineF &line) const

Private Attributes
int	m_size

bool	m_snap

bool	m_fill

QUndoStack	m_undoStack

ToolMode	m_toolMode

QList< QPointF >	m_points

QList< QPainterPath::ElementType >	m_elements

QList< QPointF >	m_activePoints

qint16	m_index

QPainterPath	m_painterPath

Symbol	m_symbol

bool	m_dragging

QPointF	m_start

QPointF	m_tracking

QRectF	m_rubberBand

QPair< bool, int >	m_dragPointIndex

QVector< qreal >	m_angles

QList< QLineF >	m_guideLines

QList< qreal >	m_guideCircles

QList< QPointF >	m_snapPoints

QLineF	m_topEdge

QLineF	m_bottomEdge

QLineF	m_leftEdge

QLineF	m_rightEdge

KCharSelect *	m_charSelect

int	m_gridElements

int	m_elementSize

int	m_elementGrouping

int	m_pointSize

double	m_snapThreshold

int	m_borderSize

QColor	m_preferredSizeColor

QColor	m_guideLineColor

Detailed Description

Manages the editor window allowing user interaction with the various tools.

The Editor class is used to edit the new symbols or the symbols from the loaded library. It shows a grid of gridElements of elementSize grouped into elementGroup number of elements.

The path is a QPainterPath element and is constructed from the various elements created by the tools. The constructed QPainterPath is used to draw the path in the editor so it is an accurate representation of the final path. The QPainterPath is deconstructed into its individual elements and points for editing.

There are additional attributes used to draw the path, filled or unfilled, the fill rule, line width, end cap and join styles can be changed to alter the appearance of the path.

The user interacts with the editor using the various tools. For each tool a number of points need to be defined, simple tools like move to and line to only require one point whereas cubic to requires three to define the two control points and the end point.

Convenience tools are available for rectangles and ellipses but these are broken down into lines and curves in the constructed path.

Points that have been added can be moved to adjust the shape by dragging them around. The points will snap to the grid intersections if the snap option is enabled. Otherwise they can be positioned anywhere.

Tools are available to rotate or flip the symbol which adjusts the points positions and reconstructs the QPainterPath.

Guide lines and circles will be displayed if the current position of the mouse on the editor aligns with an existing point either horizontally, vertically or at a specified angle, or if the point lies on the same circle as the original where its origin is at the center of the grid.

Definition at line 74 of file Editor.h.

Member Enumeration Documentation

enum Editor::ToolMode

Enumerator:

MoveTo
LineTo
CubicTo
Rectangle
Ellipse
Character

Definition at line 79 of file Editor.h.

Constructor & Destructor Documentation

Editor::Editor ( QWidget * parent = 0 )

explicit

Construct the Editor. The editor is a sub class of a QWidget and is added to a layout widget. The boundary edges of the symbol editor are defined in the range 0..1. These are used to intersect the guidelines which are shown at the m_angles relative to existing points

Parameters

parent a pointer to the parent widget, this is passed to the base class object

Definition at line 169 of file Editor.cpp.

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Editor::~Editor ( )

Destructor for the Editor. No additional destruction is required here.

Definition at line 192 of file Editor.cpp.

Member Function Documentation

QPainterPath Editor::addEllipse	(	const QPointF &	from,
		const QPointF &	to
	)

Add an ellipse as a new sub path. The points are in symbol coordinates. Returns the current painterPath for later undo.

Parameters

from	a const reference to a QPointF representing the first corner
to	a const reference to a QPointF representing the second corner

Returns: a QPainterPath representing the original path

Definition at line 317 of file Editor.cpp.

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void Editor::addPoint ( const QPointF & point )

private

Add a point for the current tool. Each tool requires a number of points to be defined to fully describe the shape the tool represents. This function adds the points and keeps track of the number of points required. When the number of points required have been selected, the tool command can be implemented and added to the symbol undo stack. The points are in symbol coordinates in the range 0..1

Parameters

point a const reference to a QPointF

Definition at line 873 of file Editor.cpp.

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QPainterPath Editor::addRectangle	(	const QPointF &	from,
		const QPointF &	to
	)

Add a rectangle as a new sub path. The points are in symbol coordinates. Returns the current painterPath for later undo.

Parameters

from	a const reference to a QPointF representing the first corner
to	a const reference to a QPointF representing the second corner

Returns: a QPainterPath representing the original path

Definition at line 297 of file Editor.cpp.

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void Editor::charSelected ( const QChar & character )

slot

Called when a character is selected from the KCharSelect widget. Create a QPainterPath object and make it available to the editor for insertion.

Parameters

char	a QChar containing the character selected.

Definition at line 582 of file Editor.cpp.

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void Editor::clear ( )

Clear the editor to represent a blank symbol. Delete the existing data and update the display.

Definition at line 525 of file Editor.cpp.

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void Editor::constructCircleGuides	(	const QPointF &	from,
		const QPointF &	to
	)

private

Construct circular guides for the given point. Calculate the possible intersection points where point p would be if it was mirrored across the vertical and horizontal center lines, this would be comparable to it being on a circle whose center is at the grid center. There are special cases where the point is on the center line. These mirrored points will not be included as they are the same as the new one.

Parameters

from	a const reference to a QPointF representing the point to test, from m_points or m_activePoints
to	a const reference to a QPointF representing the cursor position

Definition at line 1395 of file Editor.cpp.

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bool Editor::constructGuides ( const QPointF & to )

private

Construct guides for the point relative to the other points. Iterate through points in m_points and m_active points passing them to the constructLineGuides and constructCircleGuides with the new point to create guide lines conforming with the requirements for each.

Parameters

to	a const reference to a QPointF representing the new point position

Returns: true if guides created, false otherwise. Guides will be in m_guideLines and m_guideCircles

Definition at line 1347 of file Editor.cpp.

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void Editor::constructLineGuides	(	const QPointF &	from,
		const QPointF &	to
	)

private

Construct line guides for the given point. The angle formed by the line from-to is tested against the allowed angles. If the angle is acceptable a new QLineF is created projected to the edges of the grid.

Parameters

from	a const reference to a QPointF representing the point to test, from m_points or m_activePoints
to	a const reference to a QPointF representing the cursor position

Definition at line 1372 of file Editor.cpp.

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void Editor::constructPainterPath ( )

private

Construct a QPainterPath from the commands and points. Initialise an empty QPainterPath. Iterate all elements stored in m_elements and add them to the path.

Definition at line 1309 of file Editor.cpp.

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QPainterPath Editor::cubicTo	(	const QPointF &	control1,
		const QPointF &	control2,
		const QPointF &	to
	)

Add a cubic spline to the sub path. The points are in symbol coordinates. Returns the current painterPath for later undo.

Parameters

control1	a const reference to a QPointF representing the first control point
control2	a const reference to a QPointF representing the second control point
to	a const reference to a QPointF representing the end point of the curve

Returns: a QPainterPath representing the original path

Definition at line 277 of file Editor.cpp.

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void Editor::deconstructPainterPath ( )

private

Convert a QPainterPath to commands and points. Clear the current lists of points. Iterate all the elements of the QPainterPath adding commands and points as necessary.

Definition at line 1271 of file Editor.cpp.

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void Editor::decreaseLineWidth ( )

slot

Decrease the thickness of the path.

Definition at line 673 of file Editor.cpp.

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void Editor::enableSnap ( bool enabled )

slot

Switch the snap mode on or off.

Parameters

enabled true if on, false otherwise

Definition at line 605 of file Editor.cpp.

void Editor::flipHorizontal ( )

slot

Flip the symbol horizontally about the vertical center line.

Definition at line 700 of file Editor.cpp.

void Editor::flipPointsHorizontal ( )

Flip all the points about a vertical axis passing through the symbol center.

Definition at line 397 of file Editor.cpp.

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void Editor::flipPointsVertical ( )

Flip all the points about a horizontal axis passing through the symbol center.

Definition at line 419 of file Editor.cpp.

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void Editor::flipVertical ( )

slot

Flip the symbol vertically about the horizontal center line.

Definition at line 709 of file Editor.cpp.

void Editor::increaseLineWidth ( )

slot

Increase the thickness of the path.

Definition at line 664 of file Editor.cpp.

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void Editor::keyPressEvent ( QKeyEvent * event )

protected

Process key presses to check for Escape to clear the current points being entered.

Parameters

event a pointer to a QKeyEvent

Definition at line 1076 of file Editor.cpp.

QPainterPath Editor::lineTo ( const QPointF & to )

Add a line to the sub path. The point is in symbol coordinates. Returns the current painterPath for later undo.

Parameters

to	a const reference to a QPointF representing the end point of the line

Returns: a QPainterPath representing the original path

Definition at line 256 of file Editor.cpp.

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void Editor::maxLineWidth ( bool reached )

signal

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void Editor::message ( const QString & text )

signal

void Editor::minLineWidth ( bool reached )

signal

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void Editor::mouseMoveEvent ( QMouseEvent * event )

protected

Process the mouse move event. Effective for the left mouse button pressed. Clear any currently defined guides. If dragging a point, update the points position and update the view, otherwise if the toolmode is for a rectangle or an ellipse initialise the rubber band rectange and update the view. If the left button is not pressed, test if the cursor is over an existing point and if it is change the cursor to a SizeAllCursor to indicate it can be moved, otherwise reset it to an ArrowCursor. Guide lines are constructed for each of the existing points to show if the new position lies in line with or at a specific angle to or on a circular path to that point.

Parameters

event a pointer to a QMouseEvent

Definition at line 788 of file Editor.cpp.

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void Editor::mousePressEvent ( QMouseEvent * event )

protected

Process the mouse press event. Effective for the left mouse button pressed. Test if the cursor is over an existing point in which case dragging of the point is enabled. Otherwise a point is added to the active points.

Parameters

event a pointer to a QMouseEvent

Definition at line 753 of file Editor.cpp.

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void Editor::mouseReleaseEvent ( QMouseEvent * event )

protected

Process the mouse release event. If dragging a point that is in the m_points list and it hasn't been dragged back to its start position create a MovePointCommand and push it onto the editor undo stack. Pushing commands onto the stack will execute it, although the point is already in its new position, this will have no adverse effects, but will record the move for possible undo/redo later. If not dragging a point, clear the rubber band rectangle and add a point if the new point is not the same as the starting point.

Parameters

event a pointer to a QMouseEvent

Definition at line 841 of file Editor.cpp.

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void Editor::movePoint	(	int	index,
		const QPointF &	to
	)

Move a point node to a new position.

Parameters

index	the index of the point to move
to	a const reference to a QPointF representing the new position

Definition at line 346 of file Editor.cpp.

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QPainterPath Editor::moveTo ( const QPointF & to )

Move the start of the sub path. The point is in symbol coordinates. Returns the current painterPath for later undo.

Parameters

to	a const reference to a QPointF representing the new start position

Returns: a QPainterPath representing the original path

Definition at line 237 of file Editor.cpp.

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bool Editor::node ( const QPointF & point ) const

private

Test if a control point is at the point specified. This will test both the committed m_points and the uncommitted m_activePoints

Parameters

point a const reference to a QPointF representing the symbol coordinate

Returns: true if a node exists here, false otherwise

Definition at line 1211 of file Editor.cpp.

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QPair< bool, int > Editor::nodeUnderCursor ( const QPointF & point ) const

private

Find the index of the node that is at the point specified. This will test both the committed m_points and the uncommitted m_activePoints

Parameters

point a const reference to a QPointF representing the point to find

Returns: a QPair<bool, int> representing the list and the index of the node, true if committed, false otherwise -1 is returned as the index if the node was not found

Definition at line 1244 of file Editor.cpp.

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void Editor::paintEvent ( QPaintEvent * event )

protected

Paint the contents of the editor. This will fill the background and draw a grid based on the elementSize and elementGroup. For each element of the current path the control points are drawn with suitable lines joining them, for example for a cubic curve, a curve is drawn, but the control points are joined with dashed lines. A complete path is constructed and painted in a light colour with transparency to show the current symbol shape. TODO scale the painter earlier to avoid the use of toScreen.

Parameters

event a pointer to a QPaintEvent

Definition at line 919 of file Editor.cpp.

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QLineF Editor::projected ( const QLineF & line ) const

private

Project the line to the edges of the grid. Calculate the points where the projected line would intersect the edges. Check which edges get intersected within the coordinate 0..1 which will determine which points are required to construct the projected line. A special case occurs when the line is a diagonal passing through the corners as it intersects all sides within the coordinate range 0..1

Parameters

line	a const reference to a QLineF

Returns: a QLineF representing the projected line

Definition at line 1430 of file Editor.cpp.

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void Editor::readSettings ( )

slot

Read the settings from the configuration file and apply them. The widget is resized to accommodate a gridElements number of cells of width elementSize. An additional 1 is added to allow for a right and bottom edge to be drawn.

Definition at line 729 of file Editor.cpp.

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void Editor::removeLast ( const QPainterPath & path )

Remove the last added element by restoring the path that existed before the last command.

Parameters

path	a const reference to a QPainterPath being restored

Definition at line 332 of file Editor.cpp.

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void Editor::rotateLeft ( )

slot

Rotate the symbol left (counter clock wise)

Definition at line 682 of file Editor.cpp.

void Editor::rotatePointsLeft ( )

Rotate all the points around the center of the symbol 90 degrees counter clockwise.

Definition at line 357 of file Editor.cpp.

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void Editor::rotatePointsRight ( )

Rotate all the points around the center of the symbol 90 degrees clockwise

Definition at line 377 of file Editor.cpp.

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void Editor::rotateRight ( )

slot

Rotate the symbol right (clock wise)

Definition at line 691 of file Editor.cpp.

void Editor::scalePreferred ( )

slot

Scale the symbol to fit within the preferred size.

Definition at line 718 of file Editor.cpp.

void Editor::selectCapStyle ( QAction * action )

slot

Select the pen cap style. The specified value is taken from the sending actions data.

Parameters

action a pointer to the action that triggered the selection

Definition at line 641 of file Editor.cpp.

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void Editor::selectFilled ( bool filled )

slot

Switch the fill mode on or off.

Parameters

filled true if on, false otherwise

Definition at line 616 of file Editor.cpp.

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void Editor::selectFillRule ( QAction * action )

slot

Select the fill rule to be used when filling is enabled. The specified rule is taken from the sending actions data.

Parameters

action a pointer to the action triggering the selection

Definition at line 628 of file Editor.cpp.

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void Editor::selectJoinStyle ( QAction * action )

slot

Select the pen join style. The specified value is taken from the sending actions data.

Parameters

action a pointer to the action that triggered the selection

Definition at line 654 of file Editor.cpp.

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void Editor::selectTool ( QAction * action )

slot

Select the next tool. Remove any points that may have been used in the last tool command but not yet committed. Set the tool mode from the sending actions data. If the character selector tool is selected, display a KCharSelect widget to get a character to be inserted otherwise hide the KCharSelect widget.

Parameters

action a pointer to the action triggering the selection

Definition at line 558 of file Editor.cpp.

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void Editor::setCapStyle ( Qt::PenCapStyle capStyle )

Set the pen cap style, see the QPen documentation for details on the styles.

Parameters

capStyle a Qt::PenCapStyle value

Definition at line 467 of file Editor.cpp.

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void Editor::setFilled ( bool filled )

Set the fill state of the symbols path.

Parameters

filled true if the path is to be filled, false for outline paths

Definition at line 443 of file Editor.cpp.

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void Editor::setFillRule ( Qt::FillRule rule )

Set the fill rule of the symbols path.

Parameters

rule	a Qt::FillRule value, see the QPainterPath documentation for details

Definition at line 455 of file Editor.cpp.

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void Editor::setJoinStyle ( Qt::PenJoinStyle joinStyle )

Set the pen join style, see the QPen documentation for details on the styles.

Parameters

joinStyle a Qt::PenJoinStyle value

Definition at line 479 of file Editor.cpp.

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void Editor::setLineWidth ( double width )

Set the line width. The width parameter is rounded to 2 decimal places to avoid errors in the comparisons. Signals are emitted to enable or disable the relevant actions depending on the values.

Parameters

width the new line width

Definition at line 493 of file Editor.cpp.

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QPainterPath Editor::setPath ( const QPainterPath & path )

Set the painter path to the requested path updating the points lists and the view.

Parameters

path	contains the new path

Returns: the old path

Definition at line 510 of file Editor.cpp.

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void Editor::setSymbol ( const QPair< qint16, Symbol > & pair )

Set the symbol and index to be edited. The undo stack will be cleared.

Parameters

pair	a QPair consisting of the index and the Symbol

Definition at line 217 of file Editor.cpp.

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QPointF Editor::snapPoint ( const QPoint & point ) const

private

Convert a point to a snap point.

The point comes from the mouse events pos() value and will be converted to a value in symbol coordinates. If snapping is enabled, the point will be snapped to a guide or to a grid intersection. If snapping is disabled, the point is returned converted to the symbol coordinates.

Parameters

point a const reference to a QPoint

Returns: a QPointF representing the symbol coordinates either snapped or not.

Definition at line 1121 of file Editor.cpp.

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QPair< bool, QPointF > Editor::snapToGrid ( const QPoint & point ) const

private

Convert a point to a symbol snap point. The point will have come from the mouse events pos() value and will be converted to a value that represents an intersection of the grid lines. This will happen only if snapping is enabled.

Parameters

point a const reference to a QPoint

Returns: a QPair<bool, QPointF> the bool element determines if a snap point was found represented by the QPointF element

Definition at line 1143 of file Editor.cpp.

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QPair< bool, QPointF > Editor::snapToGuide ( const QPointF & point ) const

private

Convert a point to a guide snap point. The point will have come from the mouse events pos() value and will be converted to a value that is within the threshold of a calculated guide intersection. This will happen only if the snapping is enabled.

Parameters

point a const reference to a QPointF

Returns: a QPair<bool, QPointF> the bool element determines if a snap point was found represented by the QPointF element

Definition at line 1168 of file Editor.cpp.

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QPair< qint16, Symbol > Editor::symbol ( )

Get the index and Symbol. Update the Symbol with the path being edited.

Returns: the edited Symbol and it's index in a QPair

Definition at line 204 of file Editor.cpp.

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QPoint Editor::toScreen ( const QPointF & point ) const

private

Convert a symbol point to a screen point. The symbol point will be a QPointF in the range 0..1 and will be converted to a value representing the position in the editor.

Parameters

point a const reference to a QPointF

Returns: a QPoint representing the screen position in the editor

Definition at line 1195 of file Editor.cpp.

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QPointF Editor::toSymbol ( const QPoint & point ) const

private

Convert a point to a symbol point.

The point will have come from the mouse events pos() value and will be converted to a value representing a point in the symbol, not necessarily at a snap position.

Parameters

point a const reference to a QPoint

Returns: a QPointF representing the point in symbol coordinates between 0..1

Definition at line 1101 of file Editor.cpp.

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QUndoStack * Editor::undoStack ( )

Get a pointer to the undo stack.

Returns: a pointer to the QUndoStack

Definition at line 543 of file Editor.cpp.

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Member Data Documentation

QList<QPointF> Editor::m_activePoints

private

the points that are being entered for the current command

Definition at line 170 of file Editor.h.

QVector<qreal> Editor::m_angles

private

the angles allowed for constructing guide lines

Definition at line 182 of file Editor.h.

int Editor::m_borderSize

private

The number of cell elements used for the border (Configuration::editor_BorderSize)

Definition at line 198 of file Editor.h.

QLineF Editor::m_bottomEdge

private

represents the bottom edge of the editor from 0,1 to 1,1

Definition at line 187 of file Editor.h.

KCharSelect* Editor::m_charSelect

private

pointer to KCharSelect dialog used to add characters to paths

Definition at line 191 of file Editor.h.

bool Editor::m_dragging

private

true if currently dragging a point around

Definition at line 176 of file Editor.h.

QPair<bool, int> Editor::m_dragPointIndex

private

represents the list and index of the point being moved, true for m_points, false for m_activePoints

Definition at line 180 of file Editor.h.

int Editor::m_elementGrouping

private

The number of cells in a group (Configuration::editor_ElementGroup)

Definition at line 195 of file Editor.h.

QList<QPainterPath::ElementType> Editor::m_elements

private

the basic elements making up the path, move, line and curve

Definition at line 168 of file Editor.h.

int Editor::m_elementSize

private

The size in pixels of an element (Configuration::editor_ElementSize)

Definition at line 194 of file Editor.h.

bool Editor::m_fill

private

true if fill mode is enabled

Definition at line 161 of file Editor.h.

int Editor::m_gridElements

private

The number of grid elements (Configuration::editor_GridElements)

Definition at line 193 of file Editor.h.

QList<qreal> Editor::m_guideCircles

private

the guide circles that have been constructed for a given point

Definition at line 184 of file Editor.h.

QColor Editor::m_guideLineColor

private

The color of the guide lines (Configuration::editor_GuideLineColor)

Definition at line 200 of file Editor.h.

QList<QLineF> Editor::m_guideLines

private

the guide lines that have been constructed for a given point

Definition at line 183 of file Editor.h.

qint16 Editor::m_index

private

the index of the symbol as stored in the library, this is 0 for new symbols

Definition at line 172 of file Editor.h.

QLineF Editor::m_leftEdge

private

represents the left edge of the editor from 0,1 to 0,1

Definition at line 188 of file Editor.h.

QPainterPath Editor::m_painterPath

private

the path from m_symbol currently being edited

Definition at line 173 of file Editor.h.

QList<QPointF> Editor::m_points

private

the points that have been committed relating to the elements in m_elements

Definition at line 167 of file Editor.h.

int Editor::m_pointSize

private

The size of a point in pixels (Configuration::editor_PointSize)

Definition at line 196 of file Editor.h.

QColor Editor::m_preferredSizeColor

private

The color of the preferred size square (Configuration::editor_PreferredSizeColor)

Definition at line 199 of file Editor.h.

QLineF Editor::m_rightEdge

private

represents the right edge of the editor from 1,0 to 1,1

Definition at line 189 of file Editor.h.

QRectF Editor::m_rubberBand

private

a rubber band rectangle in symbol coordinates, is null when not required

Definition at line 179 of file Editor.h.

int Editor::m_size

private

the overall size of the editor

Definition at line 158 of file Editor.h.

bool Editor::m_snap

private

true if snap mode is enabled

Definition at line 160 of file Editor.h.

QList<QPointF> Editor::m_snapPoints

private

points that intersect with guide lines

Definition at line 185 of file Editor.h.

double Editor::m_snapThreshold

private

The distance to check within the range of a point (Configuration::editor_SnapThreshold)

Definition at line 197 of file Editor.h.

QPointF Editor::m_start

private

the start position of a drag operation or the start of a rubber band selection

Definition at line 177 of file Editor.h.

Symbol Editor::m_symbol

private

the symbol containing the QPainterPath and rendering attributes

Definition at line 174 of file Editor.h.

ToolMode Editor::m_toolMode

private

the current tool selected

Definition at line 165 of file Editor.h.

QLineF Editor::m_topEdge

private

represents the top edge of the editor from 0,0 to 1,0

Definition at line 186 of file Editor.h.

QPointF Editor::m_tracking

private

the current position of a drag operation or the position of a rubber band selection

Definition at line 178 of file Editor.h.

QUndoStack Editor::m_undoStack

private

holds the commands that modify the editor contents allowing for undo

Definition at line 163 of file Editor.h.

The documentation for this class was generated from the following files:

Public Types

Public Slots

Signals

Public Member Functions

Protected Member Functions

Private Member Functions

Private Attributes

Detailed Description

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation