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Public Member Functions | Protected Attributes
fr.ove.openmath.jome.ctrlview.bidim.AbsoluteLayout Class Reference

Layout manager that lays the display of the absolute value operator. More...

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List of all members.

Public Member Functions

SymbolDisplay createOpening ()
 Returns the opening.
SymbolDisplay createClosing ()
 Returns the closing.
Dimension computeAttributes ()
 Computes the size of the display according to its children size (if any), and its different attributes.
SymbolDisplay getOpening ()
 Returns the opening.
SymbolDisplay getClosing ()
 Returns the closing.
void initDisplay (Display displayToLay)
 According to the operator, the layout manager has to add some components (e.g.
void validateSelection ()
 Checks the validity of the selection.
void validateDeselection (Display display)
 Checks the validity of the deselection.
void rebuildDisplay ()
 The display needs to be rebuilt.
void layoutContainer (Container parent)
boolean selectLeftDisplay ()
 Returns true if during the selection, the display which is located to the left of the display that the instance lays, must be selected too.
boolean selectRightDisplay ()
 Returns true if during the selection, the display which is located to the right of the display that the instance lays, must be selected too.
void selectDisplay ()
 Selects the display (and its children if any)
void deselectDisplay ()
 Deselects the display.
void updateLevel (int level)
 Updates the level of the display laid out.
void addLayoutComponent (String name, Component comp)
 Adds the specified component with the specified name to the layout.
void addLayoutComponent (Component comp, Object constraints)
 Adds the specified component to the layout, using the specified constraint object.
void removeLayoutComponent (Component comp)
 Removes the specified component from the layout.
Dimension minimumLayoutSize (Container parent)
 Calculates the minimum size dimensions for the specified panel given the components in the specified parent container.
Dimension preferredLayoutSize (Container parent)
 Calculates the preferred size dimensions for the specified panel given the components in the specified parent container.
Dimension maximumLayoutSize (Container target)
 Returns the maximum size of this component.
float getLayoutAlignmentX (Container target)
 Returns the alignment along the x axis.
float getLayoutAlignmentY (Container target)
 Returns the alignment along the y axis.
void invalidateLayout (Container target)
 Invalidates the layout, indicating that if the layout manager has cached information it should be discarded.

Protected Attributes

Display displayToLay = null
 The display laid out by the instance.

Detailed Description

Layout manager that lays the display of the absolute value operator.

Author:
© 1999 DIRAT Laurent
Version:
2.0 15/12/1999

Definition at line 45 of file AbsoluteLayout.java.


Member Function Documentation

void fr.ove.openmath.jome.ctrlview.bidim.DisplayLayout.addLayoutComponent ( String  name,
Component  comp 
) [inline, inherited]

Adds the specified component with the specified name to the layout.

Parameters:
namethe component name
compthe component to be added

Definition at line 189 of file DisplayLayout.java.

                                                                {
    }
void fr.ove.openmath.jome.ctrlview.bidim.DisplayLayout.addLayoutComponent ( Component  comp,
Object  constraints 
) [inline, inherited]

Adds the specified component to the layout, using the specified constraint object.

Parameters:
compthe component to be added
constraintswhere/how the component is added to the layout.

Definition at line 236 of file DisplayLayout.java.

                                                                       {
           if (!(constraints instanceof Display))
              throw new IllegalArgumentException("The component to add must be a Display instance !!!");
    }

Computes the size of the display according to its children size (if any), and its different attributes.

Returns:
the size of the display.

Reimplemented from fr.ove.openmath.jome.ctrlview.bidim.EnclosingLayout.

Definition at line 68 of file AbsoluteLayout.java.

                                         {
        Display display = null;

        // On calcule la taille de l'élement en valeur absolue
        display = (Display) displayToLay.getComponent(2);
        display.setSize(display.getPreferredSize());
        // On met un petit décalage horizontal pour que la barre de gauche ne soit pas collée au terme
        display.setShiftX(2);
        
        int width = display.getShiftX() + display.getWidth();
        int height = display.getShiftY() + display.getHeight();
        int ascent = display.getAscent();
        int descent = display.getDescent();
        int thickness = FontInfo.getLineThickness(displayToLay, displayToLay.getFont());
        
        // Maintenant, on peut fixer la hauteur des barres, qui est la hauteur du composant
        // qu'elles contiennent, et l'ascent, qui est celui du composant qu'elles contiennent.
        SymbolDisplay opening = getOpening();
        Bar bar = (Bar) opening.getSymbol();
        bar.setHeight(display.getHeight());
        bar.setWidth(thickness);
        bar.setAscent(ascent);
        bar.setDescent(descent);
        opening.setComputeAttributes(true);
        opening.invalidate();
        opening.setSize(opening.getPreferredSize());

        width += opening.getWidth();
        
        SymbolDisplay closing = getClosing();
        bar = (Bar) closing.getSymbol();
        bar.setHeight(display.getHeight());
        bar.setWidth(thickness);
        bar.setAscent(ascent);
        bar.setDescent(descent);
        closing.setComputeAttributes(true);
        closing.invalidate();
        closing.setSize(closing.getPreferredSize());
        // On met un petit décalage horizontal pour que la barre de droite ne soit pas collée au terme
        closing.setShiftX(2);

        width += closing.getShiftX() + closing.getWidth();
            
        displayToLay.setAscent(ascent);
        displayToLay.setDescent(descent);
        displayToLay.setSize(width, height);
        
        displayToLay.setComputeAttributes(false);
            
        // Cette taille là correspond au décalage qu'il faut appliquer à closing
        closing.setShiftX(width - 2*closing.getWidth());
        // Mais il faut l'enlever au display du milieu qui doit être contre l'opening (because HonrizontalLayout)
        display.setShiftX(display.getShiftX() - closing.getShiftX() - closing.getWidth());
            
        return new Dimension(width, height);
    }

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Returns the closing.

Implements fr.ove.openmath.jome.ctrlview.bidim.EnclosingLayout.

Definition at line 59 of file AbsoluteLayout.java.

                                         {
        return createOpening();
    }

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Returns the opening.

Implements fr.ove.openmath.jome.ctrlview.bidim.EnclosingLayout.

Definition at line 49 of file AbsoluteLayout.java.

                                         {
        SymbolDisplay bar = new SymbolDisplay(displayToLay.getGraphicContext(), new Bar());
        // Le display de la barre est le display d'un opérateur (on peut le considérer comme tel)
        bar.setIsSymbolOperatorDisplay(true);
        return bar;
    }

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Deselects the display.

Parameters:
thedisplay to deselect.

Reimplemented in fr.ove.openmath.jome.ctrlview.bidim.OneFormulaLayout.

Definition at line 107 of file DisplayLayout.java.

                                  {
        displayToLay.deselect();

        SelectionEvent selEvt = new SelectionEvent(displayToLay);
        selEvt.setAction(SelectionEvent.REMOVE, displayToLay);
        displayToLay.fireSelectionEvent(selEvt);
        
        if (displayToLay.getParent() instanceof Display) {
            Display display = (Display) displayToLay.getParent();
            ((DisplayLayout) display.getLayout()).validateDeselection(displayToLay);
        }
    }

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Returns the closing.

Definition at line 65 of file EnclosingLayout.java.

                                      {
        return closing;
    }

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float fr.ove.openmath.jome.ctrlview.bidim.DisplayLayout.getLayoutAlignmentX ( Container  target) [inline, inherited]

Returns the alignment along the x axis.

This specifies how the component would like to be aligned relative to other components. The value should be a number between 0 and 1 where 0 represents alignment along the origin, 1 is aligned the furthest away from the origin, 0.5 is centered, etc.

Definition at line 258 of file DisplayLayout.java.

                                                       {
        return 0.0f;
    }
float fr.ove.openmath.jome.ctrlview.bidim.DisplayLayout.getLayoutAlignmentY ( Container  target) [inline, inherited]

Returns the alignment along the y axis.

This specifies how the component would like to be aligned relative to other components. The value should be a number between 0 and 1 where 0 represents alignment along the origin, 1 is aligned the furthest away from the origin, 0.5 is centered, etc.

Definition at line 269 of file DisplayLayout.java.

                                                       {
        return 0.0f;
    }

Returns the opening.

Definition at line 58 of file EnclosingLayout.java.

                                      {
        return opening;
    }

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According to the operator, the layout manager has to add some components (e.g.

brackets, ...) or has to perform some "re-oganisation" before rendering.
As soon as the layout manager is set to the display, this mehtod MUST be called with the display laid out as parameter. This method serves as well as a registering method. So all sub-classes of the instance MUST call super.initDisplay(displayToLay).

Parameters:
displayToLaythe display laid by the instance

Reimplemented from fr.ove.openmath.jome.ctrlview.bidim.DisplayLayout.

Reimplemented in fr.ove.openmath.jome.ctrlview.bidim.HorizontalListLayout, fr.ove.openmath.jome.ctrlview.bidim.IntervalLayout, and fr.ove.openmath.jome.ctrlview.bidim.EnumerationLayout.

Definition at line 77 of file EnclosingLayout.java.

                                                  {
        super.initDisplay(displayToLay);
        
        FormulaTreeStructure fts = (FormulaTreeStructure) displayToLay.getListener();
        if (((Maskable) fts).isVisible()) {
            opening = createOpening();

            // On met un listener à l'opening
            // En fait, il n'y en a pas besoin, dans le sens où il n'y a pas spécifiquement de fts qui
            // écoute le comportement de ce display. Néanmoins, il s'avère nécessaire qu'il en ait
            // un, par exemple lors de l'iconification, car c'est le display qui reçoit la demande
            // d'iconification qui envoie l'événement correspondant à la FTS. Or si ce display n'a pas
            // d'écouteur, alors pb. Par cohérence, l'écouteur du display d'opérateur, est le fts qui
            // représente cette opération. Par contre, la fts en question, n'écoute pas le display
            // d'opérateur.
            opening.addControlListener(fts);
            this.displayToLay.add(opening);
            
            closing = createClosing();
            closing.addControlListener(fts);
            this.displayToLay.add(closing);
        }
    }

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void fr.ove.openmath.jome.ctrlview.bidim.DisplayLayout.invalidateLayout ( Container  target) [inline, inherited]

Invalidates the layout, indicating that if the layout manager has cached information it should be discarded.

Definition at line 277 of file DisplayLayout.java.

                                                   {
    }
void fr.ove.openmath.jome.ctrlview.bidim.HorizontalLayout.layoutContainer ( Container  parent) [inline, inherited]

Reimplemented in fr.ove.openmath.jome.ctrlview.bidim.RequestLayout.

Definition at line 95 of file HorizontalLayout.java.

                                                   {
        int x, y;
        Display display, previous;
        
        int count = parent.getComponentCount();
        for (int i = 0; i < count; i++) {
            display = (Display) parent.getComponent(i);
            display.setSize(display.getPreferredSize());

            if (i == 0)
                x = display.getShiftX();
            else {
                previous = (Display) parent.getComponent(i-1);
                x = previous.getX() + previous.getWidth() + display.getShiftX();
            }

            y = ((Display) parent).getAscent() - display.getAscent() + display.getShiftY();

            display.setLocation(x, y);

            // On place maintenant les éventuels display enfants du display courant
            display.doLayout();
        }
    }

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Dimension fr.ove.openmath.jome.ctrlview.bidim.DisplayLayout.maximumLayoutSize ( Container  target) [inline, inherited]

Returns the maximum size of this component.

See also:
java.awt.Component::getMinimumSize()
java.awt.Component::getPreferredSize()
LayoutManager

Definition at line 247 of file DisplayLayout.java.

                                                         {
        return preferredLayoutSize(target);
    }

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Dimension fr.ove.openmath.jome.ctrlview.bidim.DisplayLayout.minimumLayoutSize ( Container  parent) [inline, inherited]

Calculates the minimum size dimensions for the specified panel given the components in the specified parent container.

Parameters:
parentthe component to be laid out
See also:
preferredLayoutSize

Definition at line 205 of file DisplayLayout.java.

                                                         {
        return preferredLayoutSize(parent);
    }

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Dimension fr.ove.openmath.jome.ctrlview.bidim.DisplayLayout.preferredLayoutSize ( Container  parent) [inline, inherited]

Calculates the preferred size dimensions for the specified panel given the components in the specified parent container.

Parameters:
parentthe component to be laid out
See also:
minimumLayoutSize

Definition at line 216 of file DisplayLayout.java.

                                                           {
        if (((Display) parent).getComputeAttributes())
            return computeAttributes();
        else
            return parent.getSize();
    }

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The display needs to be rebuilt.

We do this.

Implements fr.ove.openmath.jome.ctrlview.bidim.DisplayLayout.

Reimplemented in fr.ove.openmath.jome.ctrlview.bidim.IntervalLayout.

Definition at line 241 of file EnclosingLayout.java.

                                 {
        // La taille des displays est probablement différente de ceux qui étaient
        // précédemment. On demande alors le recalcul des display ancêtres.
        displayToLay.computeAncestorsAttributes();
    }

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Removes the specified component from the layout.

Parameters:
compthe component ot be removed

Definition at line 196 of file DisplayLayout.java.

                                                      {
    }

Selects the display (and its children if any)

Parameters:
thedisplay to select.

Reimplemented in fr.ove.openmath.jome.ctrlview.bidim.OneFormulaLayout.

Definition at line 85 of file DisplayLayout.java.

                                {
        displayToLay.select();
        
        SelectionEvent selEvt = new SelectionEvent(displayToLay);
        // On purge la liste des éléments sélectionnés.
        selEvt.setAction(SelectionEvent.PURGE, null);
        displayToLay.fireSelectionEvent(selEvt);
        selEvt.setAction(SelectionEvent.ADD, displayToLay);
        displayToLay.fireSelectionEvent(selEvt);
        
        Display display = displayToLay;
        if (displayToLay.getParent() instanceof Display) {
            display = (Display) displayToLay.getParent();
            ((DisplayLayout) display.getLayout()).validateSelection();
        }
    }

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Returns true if during the selection, the display which is located to the left of the display that the instance lays, must be selected too.

false otherwise.

Reimplemented in fr.ove.openmath.jome.ctrlview.bidim.LeftAssocPrefixedUnaryOperatorLayout, and fr.ove.openmath.jome.ctrlview.bidim.StringLayout.

Definition at line 68 of file DisplayLayout.java.

                                       {
        return false;
    }

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Returns true if during the selection, the display which is located to the right of the display that the instance lays, must be selected too.

false otherwise.

Reimplemented in fr.ove.openmath.jome.ctrlview.bidim.StringLayout.

Definition at line 77 of file DisplayLayout.java.

                                        {
        return false;
    }

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void fr.ove.openmath.jome.ctrlview.bidim.DisplayLayout.updateLevel ( int  level) [inline, inherited]

Updates the level of the display laid out.

Parameters:
displaythe display laid out
levelthe level put to the display.

Reimplemented in fr.ove.openmath.jome.ctrlview.bidim.LimitLayout, fr.ove.openmath.jome.ctrlview.bidim.RootLayout, fr.ove.openmath.jome.ctrlview.bidim.IntegralLayout, fr.ove.openmath.jome.ctrlview.bidim.MapsArrayLayout, fr.ove.openmath.jome.ctrlview.bidim.MapsToSigmaLayout, fr.ove.openmath.jome.ctrlview.bidim.ScriptLayout, and fr.ove.openmath.jome.ctrlview.bidim.AbstractStringLayout.

Definition at line 126 of file DisplayLayout.java.

                                       {
        Display tmp;
        
        if (displayToLay.getUpdateLevel()) {
            // On met le niveau adéquat
            displayToLay.setLevel(level);
            // On scale le display en fonction du niveau
            displayToLay.scaleDisplay();
            // On n'a plus besoin de mettre à jour le niveau de l'instance
            displayToLay.setUpdateLevel(false);
            // Le comportement par défaut est que les displays enfant de l'instance courante
            // ont le même niveau que leur père.
            int count = displayToLay.getComponentCount();
            for (int i = 0; i < count; i++) {
                tmp = (Display) displayToLay.getComponent(i);
                ((DisplayLayout) tmp.getLayout()).updateLevel(level);
            }
        }
    }

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Checks the validity of the deselection.

Parameters:
displaythe display to deselect.

Implements fr.ove.openmath.jome.ctrlview.bidim.DisplayLayout.

Definition at line 141 of file EnclosingLayout.java.

                                                     {
        Display father = displayToLay;
        Display tmp;
        SelectionEvent selEvt = new SelectionEvent(displayToLay);

        // Si les parenthèses sont sélectionnées, alors il faut les déselectionner.
        if (father.isSelected()) {
            father.setNotSelected();
            // On enlève le display père de la liste des display sélectionnés.
            selEvt.setAction(SelectionEvent.REMOVE, father);
            father.fireSelectionEvent(selEvt);

            if (((Maskable) displayToLay.getListener()).isVisible()) {
                if (display == opening)
                    closing.setNotSelected();
                else
                    opening.setNotSelected();
                    
                // L'opérande est mis dans la liste des sélectionnés
                selEvt.setAction(SelectionEvent.ADD, (Display) father.getComponent(2));
                father.fireSelectionEvent(selEvt);
            }

            // Comme pour la sélection, on contrôle la validité de la désélection.
            if (father.getParent() instanceof Display) {
                father = (Display) father.getParent();
                FormulaTreeStructure fts = (FormulaTreeStructure) father.getListener();
                if (fts.getFather() != null)
                    ((DisplayLayout) father.getLayout()).validateDeselection(displayToLay);
            }

            // Hé oui, on contrôle la validité de la sélection... dans une désélection.
            // Toujours le même pb, est-ce que le nouvel état de la sélection (après
            // désélection donc) est syntaxiquement cohérent ?
            validateSelection();

            // On met à jour l'affichage.
            father.repaint();
        }

    }

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Checks the validity of the selection.

Implements fr.ove.openmath.jome.ctrlview.bidim.DisplayLayout.

Definition at line 104 of file EnclosingLayout.java.

                                    {
        SelectionEvent selEvt = new SelectionEvent(displayToLay);

        if (((Maskable) displayToLay.getListener()).isVisible()) {
            // La validité de la sélection est triviale.
            // Si l'une ou l'autre des parenthèse est sélectionnée, alors on sélectionne
            // tout.
            if (opening.isSelected() || closing.isSelected()) {
                // Sélectionne le display.
                displayToLay.select();
                // On purge la liste des éléments sélectionnés.
                selEvt.setAction(SelectionEvent.PURGE, null);
                displayToLay.fireSelectionEvent(selEvt);
                // On y ajoute nos parenthèses
                selEvt.setAction(SelectionEvent.ADD, displayToLay);
                displayToLay.fireSelectionEvent(selEvt);
            }
        }

        // On a vérifié la validité de la sélection de la puissance. On doit maitenant
        // la contrôler au niveau supérieur, au niveau du père.
        Display display = displayToLay;
        if (displayToLay.getParent() instanceof Display) {
            display = (Display) displayToLay.getParent();
            FormulaTreeStructure fts = (FormulaTreeStructure) display.getListener();
            if (fts.getFather() != null)
                ((DisplayLayout) display.getLayout()).validateSelection();
        }

        // On met à jour l'affichage.
        display.repaint();
    }

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Member Data Documentation

The display laid out by the instance.

Definition at line 47 of file DisplayLayout.java.


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