85 lines
2.2 KiB
JavaScript
85 lines
2.2 KiB
JavaScript
// Data saved when copying or cutting
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let clipboardData;
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// Tells if the user is pasting something or not
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let isPasting = false;
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// Coordinates of the copied (or cut) selection
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let copiedStartX;
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let copiedStartY;
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let copiedEndX;
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let copiedEndY;
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/** Copies the current selection to the clipboard
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*
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*/
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function copySelection() {
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copiedEndX = endX;
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copiedEndY = endY;
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copiedStartX = startX;
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copiedStartY = startY;
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// Getting the selected pixels
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clipboardData = currentLayer.context.getImageData(startX, startY, endX - startX + 1, endY - startY + 1);
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}
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/** Pastes the clipboard data onto the current layer
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*
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*/
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function pasteSelection() {
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// Can't paste if the layer is locked
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if (currentLayer.isLocked) {
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return;
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}
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// Cancel the current selection
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endSelection();
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// I'm pasting
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isPasting = true;
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// Putting the image data on the tmp layer
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TMPLayer.context.putImageData(clipboardData, copiedStartX, copiedStartY);
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// Setting up the move tool to move the pasted value
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selectionCanceled = false;
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imageDataToMove = clipboardData;
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firstTimeMove = false;
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isRectSelecting = false;
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// Switching to the move tool
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tool.moveselection.switchTo();
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// Updating the rectangle preview
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moveSelection(
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copiedStartX + (copiedEndX - copiedStartX) / 2,
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copiedStartY + (copiedEndY - copiedStartY) / 2,
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clipboardData.width, clipboardData.height);
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//drawRect(copiedStartX, copiedEndX, copiedStartY, copiedEndY);
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}
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/** Cuts the current selection and copies it to the clipboard
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*
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*/
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function cutSelectionTool() {
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// Saving the coordinates
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copiedEndX = endX;
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copiedEndY = endY;
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copiedStartX = startX;
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copiedStartY = startY;
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// Getting the selected pixels
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// If I'm already moving a selection
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if (imageDataToMove !== undefined) {
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// I just save that selection in the clipboard
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clipboardData = imageDataToMove;
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// And clear the underlying space
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TMPLayer.context.clearRect(0, 0, TMPLayer.canvas.width, TMPLayer.canvas.height);
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// The image has been cleared, so I don't have anything to move anymore
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imageDataToMove = undefined;
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}
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else {
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// Otherwise, I copy the current selection into the clipboard
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copySelection();
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// And clear the selection
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currentLayer.context.clearRect(startX - 0.5, startY - 0.5, endX - startX + 1, endY - startY + 1);
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}
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} |