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Prevent nodes being dragged off canvas - top-left only

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Fixes #120

Doesn't prevent dragging off the right/bottom sides, but that should be less likely to occur
This commit is contained in:
Nick O'Leary
2013-12-28 20:03:43 +00:00
parent 4e3594d617
commit 0046164689
1 changed files with 28 additions and 6 deletions
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34
public/red/ui/view.js
View File

@@ -258,6 +258,8 @@ RED.view = function() {
mousePos[0] = 20*Math.floor(mousePos[0]/20);
mousePos[1] = 20*Math.floor(mousePos[1]/20);
}
var minX = 0;
var minY = 0;
for (var n in moving_set) {
var node = moving_set[n];
node.n.x = mousePos[0]+node.dx;
@@ -266,6 +268,13 @@ RED.view = function() {
node.n.x = 20*Math.floor(node.n.x/20);
node.n.y = 20*Math.floor(node.n.y/20);
}
minX = Math.min(node.n.x-node.n.w/2-5,minX);
minY = Math.min(node.n.y-node.n.h/2-5,minY);
}
for (var n in moving_set) {
var node = moving_set[n];
node.n.x -= minX;
node.n.y -= minY;
node.n.dirty = true;
}
}
@@ -1002,14 +1011,27 @@ RED.view = function() {
if (mouse_position == null) {
mouse_position = [0,0];
}
var minX = 0;
var minY = 0;
for (var i in new_ms) {
new_ms[i].n.selected = true;
new_ms[i].n.changed = true;
new_ms[i].n.x -= dx - mouse_position[0];
new_ms[i].n.y -= dy - mouse_position[1];
new_ms[i].dx = new_ms[i].n.x - mouse_position[0];
new_ms[i].dy = new_ms[i].n.y - mouse_position[1];
var node = new_ms[i];
node.n.selected = true;
node.n.changed = true;
node.n.x -= dx - mouse_position[0];
node.n.y -= dy - mouse_position[1];
node.dx = node.n.x - mouse_position[0];
node.dy = node.n.y - mouse_position[1];
minX = Math.min(node.n.x-node_width/2-5,minX);
minY = Math.min(node.n.y-node_height/2-5,minY);
}
for (var i in new_ms) {
var node = new_ms[i];
node.n.x -= minX;
node.n.y -= minY;
node.dx -= minX;
node.dy -= minY;
}
mouse_mode = RED.state.IMPORT_DRAGGING;