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Add scale function, use bounding div for main display element, such that the display can be scaled independently of the surrounding div, which provides the layout.

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This commit is contained in:
Michael Jumper
2012-04-01 01:07:14 -07:00
parent 5e2858a413
commit dcf55cbd75
1 changed files with 41 additions and 1 deletions
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42
guacamole-common-js/src/main/resources/guacamole.js
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@@ -67,6 +67,7 @@ Guacamole.Client = function(tunnel) {
var displayWidth = 0;
var displayHeight = 0;
var displayScale = 1;
/**
* Translation from Guacamole protocol line caps to Layer line caps.
@@ -86,12 +87,26 @@ Guacamole.Client = function(tunnel) {
2: "round"
};
// Create bounding div
var bounds = document.createElement("div");
bounds.style.position = "relative";
bounds.style.width = (displayWidth*displayScale) + "px";
bounds.style.height = (displayHeight*displayScale) + "px";
// Create display
var display = document.createElement("div");
display.style.position = "relative";
display.style.width = displayWidth + "px";
display.style.height = displayHeight + "px";
// Ensure transformations on display originate at 0,0
display.style.transformOrigin =
display.style.webkitTransformOrigin =
display.style.MozTransformOrigin =
display.style.OTransformOrigin =
display.style.msTransformOrigin =
"0 0";
// Create default layer
var default_layer_container = new Guacamole.Client.LayerContainer(displayWidth, displayHeight);
@@ -116,6 +131,9 @@ Guacamole.Client = function(tunnel) {
display.appendChild(default_layer_container.getElement());
display.appendChild(cursor.getElement());
// Add display to bounds
bounds.appendChild(display);
// Initially, only default layer exists
var layers = [default_layer_container];
@@ -158,7 +176,7 @@ Guacamole.Client = function(tunnel) {
}
guac_client.getDisplay = function() {
return display;
return bounds;
};
guac_client.sendKeyEvent = function(pressed, keysym) {
@@ -651,6 +669,10 @@ Guacamole.Client = function(tunnel) {
display.style.width = displayWidth + "px";
display.style.height = displayHeight + "px";
// Update bounds size
bounds.style.width = (displayWidth*displayScale) + "px";
bounds.style.height = (displayHeight*displayScale) + "px";
}
},
@@ -801,6 +823,24 @@ Guacamole.Client = function(tunnel) {
setState(STATE_WAITING);
};
guac_client.scale = function(scale) {
display.style.transform =
display.style.WebkitTransform =
display.style.MozTransform =
display.style.OTransform =
display.style.msTransform =
"scale(" + scale + "," + scale + ")";
displayScale = scale;
// Update bounds size
bounds.style.width = (displayWidth*displayScale) + "px";
bounds.style.height = (displayHeight*displayScale) + "px";
};
};