webglimpse
Version:
Webglimpse is a data visualization library for the web.
63 lines • 10.5 kB
JavaScript
import { hasval } from '../util/util';
/**
* A layout similar to overlay_layout except only one child pane is visible at a time.
* That child pane has its size set to the size of the parent pane. The other children panes
* are made invisible until they are the active pane.
*
* The layoutArg for each child is a boolean, true if it should be the active pane. One is chosen
* arbitrarily if multiple panes have true layoutArg.
*/
export function newCardLayout() {
return {
updatePrefSize: function (parentPrefSize, children) {
let activeChild;
for (let c = 0; c < children.length; c++) {
const child = children[c];
const isActive = child.layoutArg;
if (isActive) {
activeChild = child;
}
}
if (hasval(activeChild)) {
const childPrefSize = activeChild.prefSize;
const childPrefWidth = childPrefSize.w;
if (hasval(childPrefWidth)) {
parentPrefSize.w = childPrefWidth;
}
else {
parentPrefSize.w = null;
}
const childPrefHeight = childPrefSize.h;
if (hasval(childPrefHeight)) {
parentPrefSize.h = childPrefHeight;
}
else {
parentPrefSize.h = null;
}
}
else {
parentPrefSize.w = 0;
parentPrefSize.h = 0;
}
},
updateChildViewports: function (children, parentViewport) {
let activeChildIndex;
for (let c = 0; c < children.length; c++) {
const child = children[c];
const isActive = child.layoutArg;
if (isActive) {
activeChildIndex = c;
}
}
for (let c = 0; c < children.length; c++) {
if (c === activeChildIndex) {
children[c].viewport.setBounds(parentViewport);
}
else {
children[c].viewport.setEdges(0, 0, 0, 0);
}
}
}
};
}
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Redistributions of source code must retain the above copyright notice, this\r\n *    list of conditions and the following disclaimer.\r\n *\r\n * 2. Redistributions in binary form must reproduce the above copyright notice,\r\n *    this list of conditions and the following disclaimer in the documentation\r\n *    and/or other materials provided with the distribution.\r\n *\r\n * 3. Neither the name of the copyright holder nor the names of its contributors\r\n *    may be used to endorse or promote products derived from this software without\r\n *    specific prior written permission.\r\n *\r\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS \"AS IS\" AND\r\n * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\r\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE\r\n * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR\r\n * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES\r\n * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;\r\n * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON\r\n * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\r\n * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS\r\n * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\r\n */\r\nimport { Layout, LayoutEntry } from '../core';\r\nimport { Size, BoundsUnmodifiable } from '../bounds';\r\nimport { hasval } from '../util/util';\r\n\r\n\r\n/**\r\n * A layout similar to overlay_layout except only one child pane is visible at a time.\r\n * That child pane has its size set to the size of the parent pane. The other children panes\r\n * are made invisible until they are the active pane.\r\n *\r\n * The layoutArg for each child is a boolean, true if it should be the active pane. One is chosen\r\n * arbitrarily if multiple panes have true layoutArg.\r\n */\r\nexport function newCardLayout(): Layout {\r\n\r\n    return <Layout>{\r\n\r\n        updatePrefSize: function (parentPrefSize: Size, children: LayoutEntry[]) {\r\n            let activeChild: LayoutEntry;\r\n\r\n            for (let c = 0; c < children.length; c++) {\r\n                const child = children[c];\r\n                const isActive = child.layoutArg;\r\n                if (isActive) {\r\n                    activeChild = child;\r\n                }\r\n            }\r\n\r\n            if (hasval(activeChild)) {\r\n\r\n                const childPrefSize = activeChild.prefSize;\r\n\r\n                const childPrefWidth = childPrefSize.w;\r\n                if (hasval(childPrefWidth)) {\r\n                    parentPrefSize.w = childPrefWidth;\r\n                }\r\n                else {\r\n                    parentPrefSize.w = null;\r\n                }\r\n\r\n                const childPrefHeight = childPrefSize.h;\r\n                if (hasval(childPrefHeight)) {\r\n                    parentPrefSize.h = childPrefHeight;\r\n                }\r\n                else {\r\n                    parentPrefSize.h = null;\r\n                }\r\n            }\r\n            else {\r\n                parentPrefSize.w = 0;\r\n                parentPrefSize.h = 0;\r\n            }\r\n        },\r\n\r\n        updateChildViewports: function (children: LayoutEntry[], parentViewport: BoundsUnmodifiable) {\r\n            let activeChildIndex: number;\r\n\r\n            for (let c = 0; c < children.length; c++) {\r\n                const child = children[c];\r\n                const isActive = child.layoutArg;\r\n                if (isActive) {\r\n                    activeChildIndex = c;\r\n                }\r\n            }\r\n\r\n            for (let c = 0; c < children.length; c++) {\r\n                if (c === activeChildIndex) {\r\n                    children[c].viewport.setBounds(parentViewport);\r\n                }\r\n                else {\r\n                    children[c].viewport.setEdges(0, 0, 0, 0);\r\n                }\r\n            }\r\n        }\r\n\r\n    };\r\n}\r\n"]}