abstractblock.html

jfreechart1。0。2的api。

<FONT color="green">322</FONT>        /**<a name="line.322"></a>
<FONT color="green">323</FONT>         * Returns the current bounds of the block.<a name="line.323"></a>
<FONT color="green">324</FONT>         * <a name="line.324"></a>
<FONT color="green">325</FONT>         * @return The bounds.<a name="line.325"></a>
<FONT color="green">326</FONT>         */<a name="line.326"></a>
<FONT color="green">327</FONT>        public Rectangle2D getBounds() {<a name="line.327"></a>
<FONT color="green">328</FONT>            return this.bounds;<a name="line.328"></a>
<FONT color="green">329</FONT>        }<a name="line.329"></a>
<FONT color="green">330</FONT>        <a name="line.330"></a>
<FONT color="green">331</FONT>        /**<a name="line.331"></a>
<FONT color="green">332</FONT>         * Sets the bounds of the block.<a name="line.332"></a>
<FONT color="green">333</FONT>         * <a name="line.333"></a>
<FONT color="green">334</FONT>         * @param bounds  the bounds (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.334"></a>
<FONT color="green">335</FONT>         */<a name="line.335"></a>
<FONT color="green">336</FONT>        public void setBounds(Rectangle2D bounds) {<a name="line.336"></a>
<FONT color="green">337</FONT>            if (bounds == null) {<a name="line.337"></a>
<FONT color="green">338</FONT>                throw new IllegalArgumentException("Null 'bounds' argument.");<a name="line.338"></a>
<FONT color="green">339</FONT>            }<a name="line.339"></a>
<FONT color="green">340</FONT>            this.bounds = bounds;<a name="line.340"></a>
<FONT color="green">341</FONT>        }<a name="line.341"></a>
<FONT color="green">342</FONT>        <a name="line.342"></a>
<FONT color="green">343</FONT>        /**<a name="line.343"></a>
<FONT color="green">344</FONT>         * Calculate the width available for content after subtracting <a name="line.344"></a>
<FONT color="green">345</FONT>         * the margin, border and padding space from the specified fixed <a name="line.345"></a>
<FONT color="green">346</FONT>         * width.<a name="line.346"></a>
<FONT color="green">347</FONT>         * <a name="line.347"></a>
<FONT color="green">348</FONT>         * @param fixedWidth  the fixed width.<a name="line.348"></a>
<FONT color="green">349</FONT>         * <a name="line.349"></a>
<FONT color="green">350</FONT>         * @return The available space.<a name="line.350"></a>
<FONT color="green">351</FONT>         */<a name="line.351"></a>
<FONT color="green">352</FONT>        protected double trimToContentWidth(double fixedWidth) {<a name="line.352"></a>
<FONT color="green">353</FONT>            double result = this.margin.trimWidth(fixedWidth);<a name="line.353"></a>
<FONT color="green">354</FONT>            result = this.border.getInsets().trimWidth(result);<a name="line.354"></a>
<FONT color="green">355</FONT>            result = this.padding.trimWidth(result);<a name="line.355"></a>
<FONT color="green">356</FONT>            return Math.max(result, 0.0);<a name="line.356"></a>
<FONT color="green">357</FONT>        }<a name="line.357"></a>
<FONT color="green">358</FONT>    <a name="line.358"></a>
<FONT color="green">359</FONT>        /**<a name="line.359"></a>
<FONT color="green">360</FONT>         * Calculate the height available for content after subtracting <a name="line.360"></a>
<FONT color="green">361</FONT>         * the margin, border and padding space from the specified fixed <a name="line.361"></a>
<FONT color="green">362</FONT>         * height.<a name="line.362"></a>
<FONT color="green">363</FONT>         * <a name="line.363"></a>
<FONT color="green">364</FONT>         * @param fixedHeight  the fixed height.<a name="line.364"></a>
<FONT color="green">365</FONT>         * <a name="line.365"></a>
<FONT color="green">366</FONT>         * @return The available space.<a name="line.366"></a>
<FONT color="green">367</FONT>         */<a name="line.367"></a>
<FONT color="green">368</FONT>        protected double trimToContentHeight(double fixedHeight) {<a name="line.368"></a>
<FONT color="green">369</FONT>            double result = this.margin.trimHeight(fixedHeight);<a name="line.369"></a>
<FONT color="green">370</FONT>            result = this.border.getInsets().trimHeight(result);<a name="line.370"></a>
<FONT color="green">371</FONT>            result = this.padding.trimHeight(result);<a name="line.371"></a>
<FONT color="green">372</FONT>            return Math.max(result, 0.0);<a name="line.372"></a>
<FONT color="green">373</FONT>        }<a name="line.373"></a>
<FONT color="green">374</FONT>        <a name="line.374"></a>
<FONT color="green">375</FONT>        /**<a name="line.375"></a>
<FONT color="green">376</FONT>         * Returns a constraint for the content of this block that will result in<a name="line.376"></a>
<FONT color="green">377</FONT>         * the bounds of the block matching the specified constraint.<a name="line.377"></a>
<FONT color="green">378</FONT>         * <a name="line.378"></a>
<FONT color="green">379</FONT>         * @param c  the outer constraint (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.379"></a>
<FONT color="green">380</FONT>         * <a name="line.380"></a>
<FONT color="green">381</FONT>         * @return The content constraint.<a name="line.381"></a>
<FONT color="green">382</FONT>         */<a name="line.382"></a>
<FONT color="green">383</FONT>        protected RectangleConstraint toContentConstraint(RectangleConstraint c) {<a name="line.383"></a>
<FONT color="green">384</FONT>            if (c == null) {<a name="line.384"></a>
<FONT color="green">385</FONT>                throw new IllegalArgumentException("Null 'c' argument.");<a name="line.385"></a>
<FONT color="green">386</FONT>            }<a name="line.386"></a>
<FONT color="green">387</FONT>            if (c.equals(RectangleConstraint.NONE)) {<a name="line.387"></a>
<FONT color="green">388</FONT>                return c;<a name="line.388"></a>
<FONT color="green">389</FONT>            }<a name="line.389"></a>
<FONT color="green">390</FONT>            double w = c.getWidth();<a name="line.390"></a>
<FONT color="green">391</FONT>            Range wr = c.getWidthRange();<a name="line.391"></a>
<FONT color="green">392</FONT>            double h = c.getHeight();<a name="line.392"></a>
<FONT color="green">393</FONT>            Range hr = c.getHeightRange();<a name="line.393"></a>
<FONT color="green">394</FONT>            double ww = trimToContentWidth(w);<a name="line.394"></a>
<FONT color="green">395</FONT>            double hh = trimToContentHeight(h);<a name="line.395"></a>
<FONT color="green">396</FONT>            Range wwr = trimToContentWidth(wr);<a name="line.396"></a>
<FONT color="green">397</FONT>            Range hhr = trimToContentHeight(hr);<a name="line.397"></a>
<FONT color="green">398</FONT>            return new RectangleConstraint(<a name="line.398"></a>
<FONT color="green">399</FONT>                ww, wwr, c.getWidthConstraintType(), <a name="line.399"></a>
<FONT color="green">400</FONT>                hh, hhr, c.getHeightConstraintType()<a name="line.400"></a>
<FONT color="green">401</FONT>            );<a name="line.401"></a>
<FONT color="green">402</FONT>        }<a name="line.402"></a>
<FONT color="green">403</FONT>    <a name="line.403"></a>
<FONT color="green">404</FONT>        private Range trimToContentWidth(Range r) {<a name="line.404"></a>
<FONT color="green">405</FONT>            if (r == null) {<a name="line.405"></a>
<FONT color="green">406</FONT>                return null;   <a name="line.406"></a>
<FONT color="green">407</FONT>            }<a name="line.407"></a>
<FONT color="green">408</FONT>            double lowerBound = 0.0;<a name="line.408"></a>
<FONT color="green">409</FONT>            double upperBound = Double.POSITIVE_INFINITY;<a name="line.409"></a>
<FONT color="green">410</FONT>            if (r.getLowerBound() &gt; 0.0) {<a name="line.410"></a>
<FONT color="green">411</FONT>                lowerBound = trimToContentWidth(r.getLowerBound());   <a name="line.411"></a>
<FONT color="green">412</FONT>            }<a name="line.412"></a>
<FONT color="green">413</FONT>            if (r.getUpperBound() &lt; Double.POSITIVE_INFINITY) {<a name="line.413"></a>
<FONT color="green">414</FONT>                upperBound = trimToContentWidth(r.getUpperBound());<a name="line.414"></a>
<FONT color="green">415</FONT>            }<a name="line.415"></a>
<FONT color="green">416</FONT>            return new Range(lowerBound, upperBound);<a name="line.416"></a>
<FONT color="green">417</FONT>        }<a name="line.417"></a>
<FONT color="green">418</FONT>        <a name="line.418"></a>
<FONT color="green">419</FONT>        private Range trimToContentHeight(Range r) {<a name="line.419"></a>
<FONT color="green">420</FONT>            if (r == null) {<a name="line.420"></a>
<FONT color="green">421</FONT>                return null;   <a name="line.421"></a>
<FONT color="green">422</FONT>            }<a name="line.422"></a>
<FONT color="green">423</FONT>            double lowerBound = 0.0;<a name="line.423"></a>
<FONT color="green">424</FONT>            double upperBound = Double.POSITIVE_INFINITY;<a name="line.424"></a>
<FONT color="green">425</FONT>            if (r.getLowerBound() &gt; 0.0) {<a name="line.425"></a>
<FONT color="green">426</FONT>                lowerBound = trimToContentHeight(r.getLowerBound());   <a name="line.426"></a>
<FONT color="green">427</FONT>            }<a name="line.427"></a>
<FONT color="green">428</FONT>            if (r.getUpperBound() &lt; Double.POSITIVE_INFINITY) {<a name="line.428"></a>
<FONT color="green">429</FONT>                upperBound = trimToContentHeight(r.getUpperBound());<a name="line.429"></a>
<FONT color="green">430</FONT>            }<a name="line.430"></a>
<FONT color="green">431</FONT>            return new Range(lowerBound, upperBound);<a name="line.431"></a>
<FONT color="green">432</FONT>        }<a name="line.432"></a>
<FONT color="green">433</FONT>        <a name="line.433"></a>
<FONT color="green">434</FONT>        /**<a name="line.434"></a>
<FONT color="green">435</FONT>         * Adds the margin, border and padding to the specified content width.<a name="line.435"></a>
<FONT color="green">436</FONT>         * <a name="line.436"></a>
<FONT color="green">437</FONT>         * @param contentWidth  the content width.<a name="line.437"></a>
<FONT color="green">438</FONT>         * <a name="line.438"></a>
<FONT color="green">439</FONT>         * @return The adjusted width.<a name="line.439"></a>
<FONT color="green">440</FONT>         */<a name="line.440"></a>
<FONT color="green">441</FONT>        protected double calculateTotalWidth(double contentWidth) {<a name="line.441"></a>
<FONT color="green">442</FONT>            double result = contentWidth;<a name="line.442"></a>
<FONT color="green">443</FONT>            result = this.padding.extendWidth(result);<a name="line.443"></a>
<FONT color="green">444</FONT>            result = this.border.getInsets().extendWidth(result);<a name="line.444"></a>
<FONT color="green">445</FONT>            result = this.margin.extendWidth(result);<a name="line.445"></a>
<FONT color="green">446</FONT>            return result;<a name="line.446"></a>
<FONT color="green">447</FONT>        }<a name="line.447"></a>
<FONT color="green">448</FONT>    <a name="line.448"></a>
<FONT color="green">449</FONT>        /**<a name="line.449"></a>
<FONT color="green">450</FONT>         * Adds the margin, border and padding to the specified content height.<a name="line.450"></a>
<FONT color="green">451</FONT>         * <a name="line.451"></a>
<FONT color="green">452</FONT>         * @param contentHeight  the content height.<a name="line.452"></a>
<FONT color="green">453</FONT>         * <a name="line.453"></a>
<FONT color="green">454</FONT>         * @return The adjusted height.<a name="line.454"></a>
<FONT color="green">455</FONT>         */<a name="line.455"></a>
<FONT color="green">456</FONT>        protected double calculateTotalHeight(double contentHeight) {<a name="line.456"></a>
<FONT color="green">457</FONT>            double result = contentHeight;<a name="line.457"></a>
<FONT color="green">458</FONT>            result = this.padding.extendHeight(result);<a name="line.458"></a>
<FONT color="green">459</FONT>            result = this.border.getInsets().extendHeight(result);<a name="line.459"></a>
<FONT color="green">460</FONT>            result = this.margin.extendHeight(result);<a name="line.460"></a>
<FONT color="green">461</FONT>            return result;<a name="line.461"></a>
<FONT color="green">462</FONT>        }<a name="line.462"></a>
<FONT color="green">463</FONT>    <a name="line.463"></a>
<FONT color="green">464</FONT>        /**<a name="line.464"></a>
<FONT color="green">465</FONT>         * Reduces the specified area by the amount of space consumed <a name="line.465"></a>
<FONT color="green">466</FONT>         * by the margin.<a name="line.466"></a>
<FONT color="green">467</FONT>         * <a name="line.467"></a>
<FONT color="green">468</FONT>         * @param area  the area (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.468"></a>
<FONT color="green">469</FONT>         * <a name="line.469"></a>
<FONT color="green">470</FONT>         * @return The trimmed area.<a name="line.470"></a>
<FONT color="green">471</FONT>         */<a name="line.471"></a>
<FONT color="green">472</FONT>        protected Rectangle2D trimMargin(Rectangle2D area) {<a name="line.472"></a>
<FONT color="green">473</FONT>            // defer argument checking...<a name="line.473"></a>
<FONT color="green">474</FONT>            this.margin.trim(area);<a name="line.474"></a>
<FONT color="green">475</FONT>            return area;<a name="line.475"></a>
<FONT color="green">476</FONT>        }<a name="line.476"></a>
<FONT color="green">477</FONT>        <a name="line.477"></a>
<FONT color="green">478</FONT>        /**<a name="line.478"></a>
<FONT color="green">479</FONT>         * Reduces the specified area by the amount of space consumed <a name="line.479"></a>
<FONT color="green">480</FONT>         * by the border.<a name="line.480"></a>
<FONT color="green">481</FONT>         * <a name="line.481"></a>
<FONT color="green">482</FONT>         * @param area  the area (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.482"></a>
<FONT color="green">483</FONT>         * <a name="line.483"></a>