mirror of
https://github.com/lospec/pixel-editor.git
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Introduce ellipse tool (which draws rectangle for now)
This commit is contained in:
nkoder
parent
07f36cf7cb
commit
6cc60c00e8
6
_ext/svg/ellipse.svg
Normal file
6
_ext/svg/ellipse.svg
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@ -0,0 +1,6 @@
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<svg width="512" height="512" viewBox="0 0 512 512" xmlns="http://www.w3.org/2000/svg">
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<g>
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<ellipse stroke="#000" stroke-width="32" fill="none" cx="255.50001" cy="255.5" id="svg_20" rx="239" ry="187.5"/>
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</g>
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</svg>
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After Width: | Height: | Size: 221 B |
22
_ext/svg/filledellipse.svg
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22
_ext/svg/filledellipse.svg
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@ -0,0 +1,22 @@
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<svg width="512" height="512" viewBox="0 0 512 512" xmlns="http://www.w3.org/2000/svg">
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<g>
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<title>Layer 1</title>
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<g id="svg_4"/>
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<g id="svg_5"/>
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<g id="svg_6"/>
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<g id="svg_7"/>
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<g id="svg_8"/>
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<g id="svg_9"/>
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<g id="svg_10"/>
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<g id="svg_11"/>
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<g id="svg_12"/>
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<g id="svg_13"/>
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<g id="svg_14"/>
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<g id="svg_15"/>
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<g id="svg_16"/>
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<g id="svg_17"/>
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<g id="svg_18"/>
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<ellipse stroke="#000" stroke-width="32" fill="#000000" cx="255.50001" cy="255.5" id="svg_20" rx="239" ry="187.5"/>
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</g>
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</svg>
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After Width: | Height: | Size: 528 B |
@ -688,6 +688,7 @@ svg {
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#tools-menu li button#zoom-in-button,
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#tools-menu li button#eraser-bigger-button,
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#tools-menu li button#rectangle-bigger-button,
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#tools-menu li button#ellipse-bigger-button,
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#tools-menu li button#line-bigger-button {
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left: 0;
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}
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@ -696,6 +697,7 @@ svg {
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#tools-menu li button#zoom-out-button,
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#tools-menu li button#eraser-smaller-button,
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#tools-menu li button#rectangle-smaller-button,
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#tools-menu li button#ellipse-smaller-button,
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#tools-menu li button#line-smaller-button {
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right: 0;
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}
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@ -708,6 +710,8 @@ svg {
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#tools-menu li.selected button#eraser-smaller-button,
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#tools-menu li.selected button#rectangle-bigger-button,
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#tools-menu li.selected button#rectangle-smaller-button,
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#tools-menu li.selected button#ellipse-bigger-button,
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#tools-menu li.selected button#ellipse-smaller-button,
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#tools-menu li.selected button#line-bigger-button,
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#tools-menu li.selected button#line-smaller-button {
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display: block;
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@ -9,7 +9,7 @@ function line(x0,y0,x1,y1, brushSize) {
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while (true) {
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//set pixel
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// If the current tool is the brush
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if (currentTool.name == 'pencil' || currentTool.name == 'rectangle') {
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if (currentTool.name == 'pencil' || currentTool.name == 'rectangle' || currentTool.name == 'ellipse') {
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// I fill the rect
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currentLayer.context.fillRect(x0-Math.floor(brushSize/2), y0-Math.floor(brushSize/2), brushSize, brushSize);
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} else if (currentTool.name == 'eraser') {
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146
js/_ellipse.js
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146
js/_ellipse.js
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@ -0,0 +1,146 @@
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// Saving the empty rect svg
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var emptyEllipseSVG = document.getElementById("ellipse-empty-button-svg");
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// and the full rect svg so that I can change them when the user changes rect modes
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var fullEllipseSVG = document.getElementById("ellipse-full-button-svg");
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// The start mode is empty ellipse
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var ellipseDrawMode = 'empty';
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// I'm not drawing a ellipse at the beginning
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var isDrawingEllipse = false;
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// Ellipse coordinates
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let startEllipseX;
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let startEllipseY;
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let endEllipseX;
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let endEllipseY;
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// TODO: [ELLIPSE] Make it draw ellipse instead of copy-pasted rectangle
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/** Starts drawing the ellipse, saves the start coordinates
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*
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* @param {*} mouseEvent
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*/
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function startEllipseDrawing(mouseEvent) {
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// Putting the vfx layer on top of everything
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VFXCanvas.style.zIndex = parseInt(currentLayer.canvas.style.zIndex, 10) + 1;;
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// Updating flag
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isDrawingEllipse = true;
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// Saving the start coords of the ellipse
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let cursorPos = getCursorPosition(mouseEvent);
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startEllipseX = Math.floor(cursorPos[0] / zoom) + 0.5;
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startEllipseY = Math.floor(cursorPos[1] / zoom) + 0.5;
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drawEllipse(startEllipseX, startEllipseY);
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}
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// TODO: [ELLIPSE] Make it draw ellipse instead of copy-pasted rectangle
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/** Updates the ellipse preview depending on the position of the mouse
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*
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* @param {*} mouseEvent The mouseEvent from which we'll get the mouse position
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*/
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function updateEllipseDrawing(mouseEvent) {
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let pos = getCursorPosition(mouseEvent);
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// Drawing the ellipse at the right position
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drawEllipse(Math.round(pos[0] / zoom) + 0.5, Math.round(pos[1] / zoom) + 0.5);
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}
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// TODO: [ELLIPSE] Make it draw ellipse instead of copy-pasted rectangle
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/** Finishes drawing the ellipse, decides the end coordinates and moves the preview ellipse to the
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* current layer
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*
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* @param {*} mouseEvent event from which we'll get the mouse position
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*/
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function endEllipseDrawing(mouseEvent) {
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// Getting the end position
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let currentPos = getCursorPosition(mouseEvent);
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let vfxContext = VFXCanvas.getContext("2d");
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endEllipseX = Math.round(currentPos[0] / zoom) + 0.5;
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endEllipseY = Math.round(currentPos[1] / zoom) + 0.5;
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// Inverting end and start (start must always be the top left corner)
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if (endEllipseX < startEllipseX) {
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let tmp = endEllipseX;
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endEllipseX = startEllipseX;
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startEllipseX = tmp;
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}
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// Same for the y
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if (endEllipseY < startEllipseY) {
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let tmp = endEllipseY;
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endEllipseY = startEllipseY;
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startEllipseY = tmp;
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}
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// Resetting this
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isDrawingEllipse = false;
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// Drawing the ellipse
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startEllipseY -= 0.5;
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endEllipseY -= 0.5;
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endEllipseX -= 0.5;
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startEllipseX -= 0.5;
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// Setting the correct linewidth and colour
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currentLayer.context.lineWidth = tool.ellipse.brushSize;
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currentLayer.context.fillStyle = currentGlobalColor;
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// Drawing the ellipse using 4 lines
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line(startEllipseX, startEllipseY, endEllipseX, startEllipseY, tool.ellipse.brushSize);
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line(endEllipseX, startEllipseY, endEllipseX, endEllipseY, tool.ellipse.brushSize);
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line(endEllipseX, endEllipseY, startEllipseX, endEllipseY, tool.ellipse.brushSize);
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line(startEllipseX, endEllipseY, startEllipseX, startEllipseY, tool.ellipse.brushSize);
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// If I have to fill it, I do so
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if (ellipseDrawMode == 'fill') {
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currentLayer.context.fillRect(startEllipseX, startEllipseY, endEllipseX - startEllipseX, endEllipseY - startEllipseY);
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}
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// Clearing the vfx canvas
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vfxContext.clearRect(0, 0, VFXCanvas.width, VFXCanvas.height);
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}
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// TODO: [ELLIPSE] Make it draw ellipse instead of copy-pasted rectangle
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/** Draws a ellipse with end coordinates given by x and y on the VFX layer (draws
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* the preview for the ellipse tool)
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*
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* @param {*} x The current end x of the ellipse
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* @param {*} y The current end y of the ellipse
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*/
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function drawEllipse(x, y) {
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// Getting the vfx context
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let vfxContext = VFXCanvas.getContext("2d");
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// Clearing the vfx canvas
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vfxContext.clearRect(0, 0, VFXCanvas.width, VFXCanvas.height);
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// Drawing the ellipse
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vfxContext.lineWidth = tool.ellipse.brushSize;
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vfxContext.strokeStyle = currentGlobalColor;
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// Drawing the ellipse
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vfxContext.beginPath();
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if ((tool.ellipse.brushSize % 2 ) == 0) {
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vfxContext.rect(startEllipseX - 0.5, startEllipseY - 0.5, x - startEllipseX, y - startEllipseY);
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}
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else {
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vfxContext.rect(startEllipseX, startEllipseY, x - startEllipseX, y - startEllipseY);
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}
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vfxContext.setLineDash([]);
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vfxContext.stroke();
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}
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/** Sets the correct tool icon depending on its mode
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*
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*/
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function setEllipseToolSvg() {
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console.log("set eilipse svg");
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if (ellipseDrawMode == 'empty') {
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emptyEllipseSVG.setAttribute('display', 'visible');
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fullEllipseSVG.setAttribute('display', 'none');
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}
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else {
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emptyEllipseSVG.setAttribute('display', 'none');
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fullEllipseSVG.setAttribute('display', 'visible');
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}
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}
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@ -65,6 +65,11 @@ function KeyPress(e) {
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case 77: case 109:
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tool.rectselect.switchTo()
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break;
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// TODO: [ELLIPSE] Decide on a shortcut to use. "s" was chosen without any in-team consultation.
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// ellipse tool, s
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case 83:
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tool.ellipse.switchTo()
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break;
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// rectangle tool, u
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case 85:
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tool.rectangle.switchTo()
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@ -22,7 +22,7 @@ window.addEventListener("mousedown", function (mouseEvent) {
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else if (mouseEvent.altKey)
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currentTool = tool.eyedropper;
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else if (mouseEvent.target.className == 'drawingCanvas' &&
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(currentTool.name == 'pencil' || currentTool.name == 'eraser' || currentTool.name == 'rectangle' || currentTool.name === 'line'))
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(currentTool.name == 'pencil' || currentTool.name == 'eraser' || currentTool.name == 'rectangle' || currentTool.name == 'ellipse' || currentTool.name === 'line'))
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new HistoryStateEditCanvas();
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else if (currentTool.name == 'moveselection') {
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if (!cursorInSelectedArea() &&
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@ -46,6 +46,7 @@ window.addEventListener("mousedown", function (mouseEvent) {
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currentTool = tool.resizeeraser;
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tool.eraser.previousBrushSize = tool.eraser.brushSize;
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}
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// TODO: [ELLIPSE] Do we need similar logic related to ellipse?
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else if (currentTool.name == 'rectangle' && mouseEvent.which == 3) {
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currentTool = tool.resizerectangle;
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tool.rectangle.previousBrushSize = tool.rectangle.brushSize;
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@ -160,6 +161,10 @@ window.addEventListener("mouseup", function (mouseEvent) {
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endRectDrawing(mouseEvent);
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currentLayer.updateLayerPreview();
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}
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else if (currentTool.name == 'ellipse' && isDrawingEllipse) {
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endEllipseDrawing(mouseEvent);
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currentLayer.updateLayerPreview();
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}
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dragging = false;
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currentTool = currentToolTemp;
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@ -269,6 +274,21 @@ function draw (mouseEvent) {
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updateRectDrawing(mouseEvent);
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}
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}
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else if (currentTool.name == 'ellipse')
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{
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//hide brush preview outside of canvas / canvas view
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if (mouseEvent.target.className == 'drawingCanvas'|| mouseEvent.target.className == 'drawingCanvas')
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brushPreview.style.visibility = 'visible';
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else
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brushPreview.style.visibility = 'hidden';
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if (!isDrawingEllipse && dragging) {
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startEllipseDrawing(mouseEvent);
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}
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else if (dragging){
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updateEllipseDrawing(mouseEvent);
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}
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}
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else if (currentTool.name == 'pan' && dragging) {
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// Setting first layer position
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layers[0].setCanvasOffset(layers[0].canvas.offsetLeft + (cursorLocation[0] - lastMouseClickPos[0]), layers[0].canvas.offsetTop + (cursorLocation[1] - lastMouseClickPos[1]));
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@ -328,12 +348,15 @@ function draw (mouseEvent) {
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//var roundingAmount = 20 - Math.round(distanceFromClick/10);
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//this doesnt work in reverse... because... it's not basing it off of the brush size which it should be
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var rectangleSizeChange = Math.round(distanceFromClick/10);
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// TODO: [ELLIPSE] Do we need similar logic related to ellipse?
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var newRectangleSize = tool.rectangle.previousBrushSize + rectangleSizeChange;
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//set the brush to the new size as long as its bigger than 1
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// TODO: [ELLIPSE] Do we need similar logic related to ellipse?
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tool.rectangle.brushSize = Math.max(1,newRectangleSize);
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//fix offset so the cursor stays centered
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// TODO: [ELLIPSE] Do we need similar logic related to ellipse?
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tool.rectangle.moveBrushPreview(lastMouseClickPos);
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currentTool.updateCursor();
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}
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@ -1,10 +1,10 @@
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// Saving the empty rect svg
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var emptySVG = document.getElementById("empty-button-svg");
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var emptyRectangleSVG = document.getElementById("rectangle-empty-button-svg");
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// and the full rect svg so that I can change them when the user changes rect modes
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var fullSVG = document.getElementById("full-button-svg");
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var fullRectangleSVG = document.getElementById("rectangle-full-button-svg");
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// The start mode is empty rectangle
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var drawMode = 'empty';
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var rectangleDrawMode = 'empty';
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// I'm not drawing a rectangle at the beginning
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var isDrawingRect = false;
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@ -19,7 +19,7 @@ let endRectY;
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* @param {*} mouseEvent
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*/
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function startRectDrawing(mouseEvent) {
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// Putting the vfx layer on top of everything
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// Putting the vfx layer on top of everything
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VFXCanvas.style.zIndex = parseInt(currentLayer.canvas.style.zIndex, 10) + 1;;
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// Updating flag
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isDrawingRect = true;
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@ -88,7 +88,7 @@ function endRectDrawing(mouseEvent) {
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line(startRectX, endRectY, startRectX, startRectY, tool.rectangle.brushSize);
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// If I have to fill it, I do so
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if (drawMode == 'fill') {
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if (rectangleDrawMode == 'fill') {
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currentLayer.context.fillRect(startRectX, startRectY, endRectX - startRectX, endRectY - startRectY);
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}
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@ -130,13 +130,13 @@ function drawRectangle(x, y) {
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*
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*/
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function setRectToolSvg() {
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if (drawMode == 'empty') {
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emptySVG.setAttribute('display', 'visible');
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fullSVG.setAttribute('display', 'none');
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if (rectangleDrawMode == 'empty') {
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emptyRectangleSVG.setAttribute('display', 'visible');
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fullRectangleSVG.setAttribute('display', 'none');
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}
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else {
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emptySVG.setAttribute('display', 'none');
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fullSVG.setAttribute('display', 'visible');
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emptyRectangleSVG.setAttribute('display', 'none');
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fullRectangleSVG.setAttribute('display', 'visible');
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}
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}
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@ -35,12 +35,12 @@ on('click',"eraser-smaller-button", function(e){
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on('click','rectangle-button', function(e){
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// If the user clicks twice on the button, they change the draw mode
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if (currentTool.name == 'rectangle') {
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if (drawMode == 'empty') {
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drawMode = 'fill';
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if (rectangleDrawMode == 'empty') {
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rectangleDrawMode = 'fill';
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setRectToolSvg();
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}
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else {
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drawMode = 'empty';
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rectangleDrawMode = 'empty';
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setRectToolSvg();
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}
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}
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@ -49,6 +49,24 @@ on('click','rectangle-button', function(e){
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}
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}, false);
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// ellipse
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on('click','ellipse-button', function(e){
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// If the user clicks twice on the button, they change the draw mode
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if (currentTool.name == 'ellipse') {
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if (ellipseDrawMode == 'empty') {
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ellipseDrawMode = 'fill';
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setEllipseToolSvg();
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}
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else {
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ellipseDrawMode = 'empty';
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setEllipseToolSvg();
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}
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}
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else {
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tool.ellipse.switchTo();
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}
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}, false);
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// rectangle bigger
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on('click',"rectangle-bigger-button", function(){
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tool.rectangle.brushSize++;
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@ -60,6 +78,17 @@ on('click',"rectangle-smaller-button", function(e){
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tool.rectangle.brushSize--;
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}, false);
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// ellipse bigger
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on('click',"ellipse-bigger-button", function(){
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tool.ellipse.brushSize++;
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}, false);
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// ellipse smaller
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on('click',"ellipse-smaller-button", function(e){
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if(tool.ellipse.brushSize > 1)
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tool.ellipse.brushSize--;
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}, false);
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//fill
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on('click',"fill-button", function(){
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tool.fill.switchTo();
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@ -73,6 +73,7 @@
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//=include _rectSelect.js
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//=include _move.js
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//=include _rectangle.js
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//=include _ellipse.js
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/**onload**/
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//=include _onLoad.js
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@ -41,6 +41,10 @@ new Tool('rectangle', {
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cursor: 'crosshair',
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brushPreview: true,
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});
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new Tool('ellipse', {
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cursor: 'crosshair',
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brushPreview: true,
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});
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new Tool('resizerectangle', {
|
||||
cursor: 'default',
|
||||
});
|
||||
|
||||
@ -33,6 +33,7 @@
|
||||
<img src="/pixel-editor/zoom-in.png" />
|
||||
<img src = "/pixel-editor/eraser.png"/>
|
||||
<img src = "/pixel-editor/rectselect.png"/>
|
||||
<!-- TODO: [ELLIPSE] Where is this icon used? Do we need similar one for ellipsis? -->
|
||||
<img src= "/pixel-editor/rectangle.png">
|
||||
</div>
|
||||
|
||||
@ -119,12 +120,23 @@
|
||||
</li>
|
||||
|
||||
<li class="expanded">
|
||||
<button title="Rectangle Tool (U)" id="rectangle-button">{{svg "rectangle.svg" width="32" height="32" id = "empty-button-svg"}}
|
||||
{{svg "fullrect.svg" width="32" height="32" id = "full-button-svg" display = "none"}}</button>
|
||||
<button title="Rectangle Tool (U)" id="rectangle-button">{{svg "rectangle.svg" width="32" height="32" id = "rectangle-empty-button-svg"}}
|
||||
{{svg "fullrect.svg" width="32" height="32" id = "rectangle-full-button-svg" display = "none"}}</button>
|
||||
<button title="Increase Rectangle Size" id="rectangle-bigger-button" class="tools-menu-sub-button">{{svg "plus.svg" width="12" height="12"}}</button>
|
||||
<button title="Decrease Rectangle Size" id="rectangle-smaller-button" class="tools-menu-sub-button">{{svg "minus.svg" width="12" height="12"}}</button>
|
||||
</li>
|
||||
|
||||
<li class="expanded">
|
||||
<!-- TODO: [ELLIPSE] Decide on a shortcut to use. "S" was chosen without any in-team consultation. -->
|
||||
<!-- TODO: [ELLIPSE] Decide on icons to use. Current ones are quickly prepared drafts and display with incorrect color. -->
|
||||
<button title="Ellipse Tool (S)" id="ellipse-button">
|
||||
{{svg "ellipse.svg" width="32" height="32" id = "ellipse-empty-button-svg"}}
|
||||
{{svg "filledellipse.svg" width="32" height="32" id = "ellipse-full-button-svg" display = "none"}}
|
||||
</button>
|
||||
<button title="Increase Ellipse Size" id="ellipse-bigger-button" class="tools-menu-sub-button">{{svg "plus.svg" width="12" height="12"}}</button>
|
||||
<button title="Decrease Ellipse Size" id="ellipse-smaller-button" class="tools-menu-sub-button">{{svg "minus.svg" width="12" height="12"}}</button>
|
||||
</li>
|
||||
|
||||
<li><button title="Fill Tool (F)" id="fill-button">{{svg "fill.svg" width="32" height="32"}}</button></li>
|
||||
|
||||
<li><button title="Eyedropper Tool (E)" id="eyedropper-button">{{svg "eyedropper.svg" width="32" height="32"}}</button></li>
|
||||
|
||||
Loading…
Reference in New Issue
Block a user