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const setMask = (state) => {
const canvas = imageCollection.layers.mask.canvas;
switch (state) {
case "clear":
canvas.classList.remove("hold");
canvas.classList.add("display", "clear");
break;
case "hold":
canvas.classList.remove("clear");
canvas.classList.add("display", "hold");
break;
case "neutral":
canvas.classList.remove("clear", "hold");
canvas.classList.add("display");
break;
case "none":
canvas.classList.remove("display", "hold", "clear");
break;
default:
console.debug(`[maskbrush.setMask] Invalid mask type: ${state}`);
break;
}
};
const _mask_brush_draw_callback = (evn, state, opacity = 100) => {
maskPaintCtx.globalCompositeOperation = "source-over";
maskPaintCtx.strokeStyle = "black";
maskPaintCtx.filter =
"blur(" + state.brushBlur + "px) opacity(" + opacity + "%)";
maskPaintCtx.lineWidth = state.brushSize;
maskPaintCtx.beginPath();
maskPaintCtx.moveTo(
evn.px === undefined ? evn.x : evn.px,
evn.py === undefined ? evn.y : evn.py
);
maskPaintCtx.lineTo(evn.x, evn.y);
maskPaintCtx.lineJoin = maskPaintCtx.lineCap = "round";
maskPaintCtx.stroke();
maskPaintCtx.filter = null;
};
const _mask_brush_erase_callback = (evn, state, opacity = 100) => {
maskPaintCtx.globalCompositeOperation = "destination-out";
maskPaintCtx.strokeStyle = "black";
maskPaintCtx.filter = "blur(" + state.brushBlur + "px)";
maskPaintCtx.filter =
"blur(" + state.brushBlur + "px) opacity(" + opacity + "%)";
maskPaintCtx.lineWidth = state.brushSize;
maskPaintCtx.beginPath();
maskPaintCtx.moveTo(
evn.px === undefined ? evn.x : evn.px,
evn.py === undefined ? evn.y : evn.py
);
maskPaintCtx.lineTo(evn.x, evn.y);
maskPaintCtx.lineJoin = maskPaintCtx.lineCap = "round";
maskPaintCtx.stroke();
maskPaintCtx.filter = null;
};
const maskBrushTool = () =>
toolbar.registerTool(
"./res/icons/paintbrush.svg",
"Mask Brush",
(state, opt) => {
// Draw new cursor immediately
uiCtx.clearRect(0, 0, uiCanvas.width, uiCanvas.height);
state.redraw();
// Start Listeners
mouse.listen.world.onmousemove.on(state.movecb);
mouse.listen.world.onwheel.on(state.wheelcb);
mouse.listen.world.btn.left.onpaintstart.on(state.drawcb);
mouse.listen.world.btn.left.onpaint.on(state.drawcb);
mouse.listen.world.btn.right.onpaintstart.on(state.erasecb);
mouse.listen.world.btn.right.onpaint.on(state.erasecb);
// Display Mask
setMask("neutral");
},
(state, opt) => {
// Clear Listeners
mouse.listen.world.onmousemove.clear(state.movecb);
mouse.listen.world.onwheel.clear(state.wheelcb);
mouse.listen.world.btn.left.onpaintstart.clear(state.drawcb);
mouse.listen.world.btn.left.onpaint.clear(state.drawcb);
mouse.listen.world.btn.right.onpaintstart.clear(state.erasecb);
mouse.listen.world.btn.right.onpaint.clear(state.erasecb);
// Hide Mask
setMask("none");
state.ctxmenu.previewMaskButton.classList.remove("active");
maskPaintCanvas.classList.remove("opaque");
state.preview = false;
uiCtx.clearRect(0, 0, uiCanvas.width, uiCanvas.height);
},
{
init: (state) => {
state.config = {
brushScrollSpeed: 1 / 4,
minBrushSize: 10,
maxBrushSize: 500,
minBlur: 0,
maxBlur: 30,
};
state.brushSize = 64;
state.brushBlur = 0;
state.brushOpacity = 1;
state.block_res_change = true;
state.setBrushSize = (size) => {
state.brushSize = size;
state.ctxmenu.brushSizeRange.value = size;
state.ctxmenu.brushSizeText.value = size;
};
state.preview = false;
state.clearPrevCursor = () =>
uiCtx.clearRect(0, 0, uiCanvas.width, uiCanvas.height);
state.redraw = () => {
state.movecb({
...mouse.coords.world.pos,
evn: {
clientX: mouse.coords.window.pos.x,
clientY: mouse.coords.window.pos.y,
},
});
};
state.movecb = (evn) => {
const vcp = {x: evn.evn.clientX, y: evn.evn.clientY};
const scp = state.brushSize / viewport.zoom;
state.clearPrevCursor();
state;
clearPrevCursor = () =>
uiCtx.clearRect(
vcp.x - scp / 2 - 10,
vcp.y - scp / 2 - 10,
vcp.x + scp / 2 + 10,
vcp.y + scp / 2 + 10
);
uiCtx.beginPath();
uiCtx.arc(vcp.x, vcp.y, scp / 2, 0, 2 * Math.PI, true);
uiCtx.strokeStyle = "black";
uiCtx.stroke();
uiCtx.beginPath();
uiCtx.arc(vcp.x, vcp.y, scp / 2, 0, 2 * Math.PI, true);
uiCtx.fillStyle = "#FFFFFF50";
uiCtx.fill();
};
state.redraw = () => {
state.movecb({
...mouse.coords.world.pos,
evn: {
clientX: mouse.coords.window.pos.x,
clientY: mouse.coords.window.pos.y,
},
});
};
state.wheelcb = (evn) => {
state.brushSize = state.setBrushSize(
state.brushSize -
Math.floor(state.config.brushScrollSpeed * evn.delta)
);
state.redraw();
};
state.drawcb = (evn) =>
_mask_brush_draw_callback(evn, state, state.brushOpacity * 100);
state.erasecb = (evn) =>
_mask_brush_erase_callback(evn, state, state.brushOpacity * 100);
},
populateContextMenu: (menu, state) => {
if (!state.ctxmenu) {
state.ctxmenu = {};
// Brush size slider
const brushSizeSlider = _toolbar_input.slider(
state,
"openoutpaint/maskbrush-brushsize",
"brushSize",
"Brush Size",
{
min: state.config.minBrushSize,
max: state.config.maxBrushSize,
step: 5,
textStep: 1,
cb: (v) => {
if (!state.cursorLayer) return;
state.redraw();
},
}
);
state.ctxmenu.brushSizeSlider = brushSizeSlider.slider;
state.setBrushSize = brushSizeSlider.setValue;
// Brush opacity slider
const brushOpacitySlider = _toolbar_input.slider(
state,
"openoutpaint/maskbrush-brushopacity",
"brushOpacity",
"Brush Opacity",
{
min: 0,
max: 1,
step: 0.05,
textStep: 0.001,
}
);
state.ctxmenu.brushOpacitySlider = brushOpacitySlider.slider;
// Brush blur slider
const brushBlurSlider = _toolbar_input.slider(
state,
"openoutpaint/maskbrush-brushblur",
"brushBlur",
"Brush Blur",
{
min: state.config.minBlur,
max: state.config.maxBlur,
step: 1,
}
);
state.ctxmenu.brushBlurSlider = brushBlurSlider.slider;
// Some mask-related action buttons
const actionArray = document.createElement("div");
actionArray.classList.add("button-array");
const clearMaskButton = document.createElement("button");
clearMaskButton.classList.add("button", "tool");
clearMaskButton.textContent = "Clear";
clearMaskButton.title = "Clears Painted Mask";
clearMaskButton.onclick = () => {
maskPaintLayer.clear();
};
const previewMaskButton = document.createElement("button");
previewMaskButton.classList.add("button", "tool");
previewMaskButton.textContent = "Preview";
previewMaskButton.title = "Displays Mask with Full Opacity";
previewMaskButton.onclick = () => {
if (previewMaskButton.classList.contains("active")) {
maskPaintCanvas.classList.remove("opaque");
state.preview = false;
state.redraw();
} else {
maskPaintCanvas.classList.add("opaque");
state.preview = true;
state.redraw();
}
previewMaskButton.classList.toggle("active");
};
state.ctxmenu.previewMaskButton = previewMaskButton;
actionArray.appendChild(clearMaskButton);
actionArray.appendChild(previewMaskButton);
state.ctxmenu.actionArray = actionArray;
}
menu.appendChild(state.ctxmenu.brushSizeSlider);
menu.appendChild(state.ctxmenu.brushOpacitySlider);
menu.appendChild(state.ctxmenu.brushBlurSlider);
menu.appendChild(state.ctxmenu.actionArray);
},
shortcut: "M",
}
);
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