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import QtQuick 2.4
import QtMir.Application 0.1
MouseArea {
id: root
// to be set from outside
property Item target
property real borderThickness
property bool leftBorder: false
property bool rightBorder: false
property bool topBorder: false
property bool bottomBorder: false
property bool dragging: false
property real startX
property real startY
property real startWidth
property real startHeight
hoverEnabled: true
property string cursorName: {
if (containsMouse || pressed) {
if (leftBorder && !topBorder && !bottomBorder) {
return "left_side";
} else if (rightBorder && !topBorder && !bottomBorder) {
return "right_side";
} else if (topBorder && !leftBorder && !rightBorder) {
return "top_side";
} else if (bottomBorder && !leftBorder && !rightBorder) {
return "bottom_side";
} else if (leftBorder && topBorder) {
return "top_left_corner";
} else if (leftBorder && bottomBorder) {
return "bottom_left_corner";
} else if (rightBorder && topBorder) {
return "top_right_corner";
} else if (rightBorder && bottomBorder) {
return "bottom_right_corner";
} else {
return "";
}
} else {
return "";
}
}
onCursorNameChanged: {
Mir.cursorName = cursorName;
}
function updateBorders() {
leftBorder = mouseX <= borderThickness;
rightBorder = mouseX >= width - borderThickness;
topBorder = mouseY <= borderThickness;
bottomBorder = mouseY >= height - borderThickness;
}
onPressedChanged: {
if (pressed) {
var pos = mapToItem(target.parent, mouseX, mouseY);
startX = pos.x;
startY = pos.y;
startWidth = target.width;
startHeight = target.height;
dragging = true;
} else {
dragging = false;
if (containsMouse) {
updateBorders();
}
}
}
onEntered: {
if (!pressed) {
updateBorders();
}
}
onPositionChanged: {
if (!pressed) {
updateBorders();
}
if (!dragging) {
return;
}
var pos = mapToItem(target.parent, mouse.x, mouse.y);
if (leftBorder) {
if (startX + startWidth - pos.x > target.minWidth) {
target.x = pos.x;
target.width = startX + startWidth - target.x;
startX = target.x;
startWidth = target.width;
}
} else if (rightBorder) {
var deltaX = pos.x - startX;
if (startWidth + deltaX >= target.minWidth) {
target.width = startWidth + deltaX;
} else {
target.width = target.minWidth;
}
}
if (topBorder) {
if (startY + startHeight - pos.y > target.minHeight) {
target.y = pos.y;
target.height = startY + startHeight - target.y;
startY = target.y;
startHeight = target.height;
}
} else if (bottomBorder) {
var deltaY = pos.y - startY;
if (startHeight + deltaY >= target.minHeight) {
target.height = startHeight + deltaY;
} else {
target.height = target.minHeight;
}
}
}
}
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