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unsettledgames
2020-12-31 13:05:51 +01:00
parent 19e6fd1aca
commit 9ef0e6ecea
13 changed files with 184 additions and 28 deletions
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26
js/_copyPaste.js
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@ -1,11 +1,17 @@
// Data saved when copying or cutting
let clipboardData;
// Tells if the user is pasting something or not
let isPasting = false;
// Coordinates of the copied (or cut) selection
let copiedStartX;
let copiedStartY;
let copiedEndX;
let copiedEndY;
/** Copies the current selection to the clipboard
*
*/
function copySelection() {
copiedEndX = endX;
copiedEndY = endY;
@ -16,13 +22,19 @@ function copySelection() {
clipboardData = currentLayer.context.getImageData(startX, startY, endX - startX + 1, endY - startY + 1);
}
/** Pastes the clipboard data onto the current layer
*
*/
function pasteSelection() {
// Can't paste if the layer is locked
if (currentLayer.isLocked) {
return;
}
// Cancel the current selection
endSelection();
// I'm pasting
isPasting = true;
// Putting the image data on the tmp layer
TMPLayer.context.putImageData(clipboardData, copiedStartX, copiedStartY);
@ -43,9 +55,11 @@ function pasteSelection() {
//drawRect(copiedStartX, copiedEndX, copiedStartY, copiedEndY);
}
/** Cuts the current selection and copies it to the clipboard
*
*/
function cutSelectionTool() {
console.log("Taglio");
// Saving the coordinates
copiedEndX = endX;
copiedEndY = endY;
@ -53,13 +67,19 @@ function cutSelectionTool() {
copiedStartY = startY;
// Getting the selected pixels
// If I'm already moving a selection
if (imageDataToMove !== undefined) {
// I just save that selection in the clipboard
clipboardData = imageDataToMove;
// And clear the underlying space
TMPLayer.context.clearRect(0, 0, TMPLayer.canvas.width, TMPLayer.canvas.height);
// The image has been cleared, so I don't have anything to move anymore
imageDataToMove = undefined;
}
else {
clipboardData = currentLayer.context.getImageData(startX, startY, endX - startX + 1, endY - startY + 1);
// Otherwise, I copy the current selection into the clipboard
copySelection();
// And clear the selection
currentLayer.context.clearRect(startX - 0.5, startY - 0.5, endX - startX + 1, endY - startY + 1);
}
}