Engauge Digitizer 2
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Digitizing state for creating, moving and removing guidelines. More...
#include <DigitizeStateGuideline.h>
Public Member Functions | |
DigitizeStateGuideline (DigitizeStateContext &context) | |
Single constructor. | |
virtual | ~DigitizeStateGuideline () |
virtual QString | activeCurve () const |
Name of the active Curve. This can include AXIS_CURVE_NAME. | |
virtual void | begin (CmdMediator *cmdMediator, DigitizeState previousState) |
Method that is called at the exact moment a state is entered. | |
virtual bool | canPaste (const Transformation &transformation, const QSize &viewSize) const |
Return true if there is good data in the clipboard for pasting, and that is compatible with the current state. | |
void | createGuidelineCommand (bool selectedXT, double valueSelected) |
Create command to add Guideline for CentipedeStateContext. | |
virtual QCursor | cursor (CmdMediator *cmdMediator) const |
Returns the state-specific cursor shape. | |
virtual void | end () |
Method that is called at the exact moment a state is exited. Typically called just before begin for the next state. | |
virtual bool | guidelinesAreSelectable () const |
Enable/disable guidelines according to state. | |
virtual void | handleContextMenuEventAxis (CmdMediator *cmdMediator, const QString &pointIdentifier) |
Handle a right click, on an axis point, that was intercepted earlier. | |
virtual void | handleContextMenuEventGraph (CmdMediator *cmdMediator, const QStringList &pointIdentifiers) |
Handle a right click, on a graph point, that was intercepted earlier. | |
virtual void | handleCurveChange (CmdMediator *cmdMediator) |
Handle the selection of a new curve. At a minimum, DigitizeStateSegment will generate a new set of Segments. | |
virtual void | handleKeyPress (CmdMediator *cmdMediator, Qt::Key key, bool atLeastOneSelectedItem) |
Handle a key press that was intercepted earlier. | |
virtual void | handleMouseMove (CmdMediator *cmdMediator, QPointF posScreen) |
Handle a mouse move. This is part of an experiment to see if augmenting the cursor in Point Match mode is worthwhile. | |
virtual void | handleMousePress (CmdMediator *cmdMediator, QPointF posScreen) |
Handle a mouse press that was intercepted earlier. | |
virtual void | handleMouseRelease (CmdMediator *cmdMediator, QPointF posScreen) |
Handle a mouse release that was intercepted earlier. | |
virtual QString | state () const |
State name for debugging. | |
virtual void | updateAfterPointAddition () |
Update graphics attributes after possible new points. This is useful for highlight opacity. | |
virtual void | updateModelDigitizeCurve (CmdMediator *cmdMediator, const DocumentModelDigitizeCurve &curve) |
Update the digitize curve settings. | |
virtual void | updateModelSegments (const DocumentModelSegments &modelSegments) |
Update the segments given the new settings. | |
Public Member Functions inherited from DigitizeStateAbstractBase | |
DigitizeStateAbstractBase (DigitizeStateContext &context) | |
Single constructor. | |
virtual | ~DigitizeStateAbstractBase () |
DigitizeStateContext & | context () |
Reference to the DigitizeStateContext that contains all the DigitizeStateAbstractBase subclasses, without const. | |
const DigitizeStateContext & | context () const |
Reference to the DigitizeStateContext that contains all the DigitizeStateAbstractBase subclasses, without const. | |
void | setCursor (CmdMediator *cmdMediator) |
Update the cursor according to the current state. |
Additional Inherited Members | |
Protected Member Functions inherited from DigitizeStateAbstractBase | |
bool | canPasteProtected (const Transformation &transformation, const QSize &viewSize) const |
Protected version of canPaste method. Some, but not all, leaf classes use this method. | |
virtual void | handleKeyPressArrow (CmdMediator *cmdMediator, Qt::Key key, bool atLeastOneSelectedItem) |
If the key is an arrow (left, right, up, down) then move currently selected items. | |
QString | moveTextDown () const |
Display text for down arrow. | |
QString | moveTextLeft () const |
Display text for left arrow. | |
QString | moveTextRight () const |
Display text for right arrow. | |
QString | moveTextUp () const |
Display text for up arrow. |
Digitizing state for creating, moving and removing guidelines.
A challenge for creating guidelines was reconciling the multistep nature of creating a guideline (click, move, move, ..., move done) with control-z. Initially the control-z was grabbed by the command stack which would remove the previous command while leaving the partially-complete guideline. Very confusing. Three options were studied for reconciling the command stack and the guideline steps:
Definition at line 34 of file DigitizeStateGuideline.h.
DigitizeStateGuideline::DigitizeStateGuideline | ( | DigitizeStateContext & | context | ) |
Single constructor.
Definition at line 37 of file DigitizeStateGuideline.cpp.
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Definition at line 43 of file DigitizeStateGuideline.cpp.
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Name of the active Curve. This can include AXIS_CURVE_NAME.
Implements DigitizeStateAbstractBase.
Definition at line 48 of file DigitizeStateGuideline.cpp.
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Method that is called at the exact moment a state is entered.
Typically called just after end for the previous state. The previousState value is used by DigitizeStateColorPicker to return to the previous state
Implements DigitizeStateAbstractBase.
Definition at line 53 of file DigitizeStateGuideline.cpp.
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Return true if there is good data in the clipboard for pasting, and that is compatible with the current state.
Implements DigitizeStateAbstractBase.
Definition at line 63 of file DigitizeStateGuideline.cpp.
void DigitizeStateGuideline::createGuidelineCommand | ( | bool | selectedXT, |
double | valueSelected ) |
Create command to add Guideline for CentipedeStateContext.
Definition at line 69 of file DigitizeStateGuideline.cpp.
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Returns the state-specific cursor shape.
Implements DigitizeStateAbstractBase.
Definition at line 89 of file DigitizeStateGuideline.cpp.
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Method that is called at the exact moment a state is exited. Typically called just before begin for the next state.
Implements DigitizeStateAbstractBase.
Definition at line 96 of file DigitizeStateGuideline.cpp.
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Enable/disable guidelines according to state.
Implements DigitizeStateAbstractBase.
Definition at line 103 of file DigitizeStateGuideline.cpp.
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Handle a right click, on an axis point, that was intercepted earlier.
Implements DigitizeStateAbstractBase.
Definition at line 108 of file DigitizeStateGuideline.cpp.
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Handle a right click, on a graph point, that was intercepted earlier.
Implements DigitizeStateAbstractBase.
Definition at line 115 of file DigitizeStateGuideline.cpp.
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Handle the selection of a new curve. At a minimum, DigitizeStateSegment will generate a new set of Segments.
Implements DigitizeStateAbstractBase.
Definition at line 122 of file DigitizeStateGuideline.cpp.
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Handle a key press that was intercepted earlier.
Implements DigitizeStateAbstractBase.
Definition at line 126 of file DigitizeStateGuideline.cpp.
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Handle a mouse move. This is part of an experiment to see if augmenting the cursor in Point Match mode is worthwhile.
Implements DigitizeStateAbstractBase.
Definition at line 134 of file DigitizeStateGuideline.cpp.
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Handle a mouse press that was intercepted earlier.
Implements DigitizeStateAbstractBase.
Definition at line 140 of file DigitizeStateGuideline.cpp.
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Handle a mouse release that was intercepted earlier.
Implements DigitizeStateAbstractBase.
Definition at line 151 of file DigitizeStateGuideline.cpp.
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State name for debugging.
Implements DigitizeStateAbstractBase.
Definition at line 224 of file DigitizeStateGuideline.cpp.
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Update graphics attributes after possible new points. This is useful for highlight opacity.
Implements DigitizeStateAbstractBase.
Definition at line 229 of file DigitizeStateGuideline.cpp.
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Update the digitize curve settings.
Implements DigitizeStateAbstractBase.
Definition at line 233 of file DigitizeStateGuideline.cpp.
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Update the segments given the new settings.
Implements DigitizeStateAbstractBase.
Definition at line 238 of file DigitizeStateGuideline.cpp.