Lua Help

[netchose]

i have changed the color example.

i have use the CtrlrLuaObject ( "A class that defines standard access methods for all Ctrlr-LUA based objects like Panels, Modulators, Components, MidiMessages etc")
– try to change postion and size , nothing happened
– try to change modulator value, nothing happened

is there an error in the code?

thanks

[code:jox4qiq7]randomSliderColour = function(modulator, newValue)
n = panel:getNumModulators()

for idx = 0, n-1 do
m = panel:getModulatorByIndex(idx)

if m ~= nil then
c = m:getComponent()
if c ~= nil then
if c:getPropertyString("uiType") == "uiSlider" then
c:setPropertyString("componentRectangle","217 30 32 191")
m:setPropertyInt("modulatorValue",25)
end
end
end
end
end[/code:jox4qiq7]

[atom]

yes i forgot to document the most important method i’m afraid, to change values for a modulator there is a special method setModulatorValue() this is because it’s a bit more compilcated, for example to set some random values to sliders on the panel (from 0-124) use this code
[code:14yn2wyz]
randomSliderColour = function(modulator, newValue)
n = panel:getNumModulators()

for idx = 0, n-1 do

m = panel:getModulatorByIndex(idx)

if m ~= nil then
c = m:getComponent()

if c:getPropertyString("uiType") == "uiSlider" then
m:setModulatorValue (utils.randomInt(124), false, false, true)
end
end

end
end
[/code:14yn2wyz]

this line-> m:setModulatorValue (utils.randomInt(124), false, false, true) means set the random value (max 124), the bool params tell the modulator witch subsystems to notify about the change, this will be in the docs

[code:14yn2wyz]
void setModulatorValue(const int newValue, const bool notifyVstHost=false, const bool notifyMidiDevice=false, const bool notifyComponent=false);
[/code:14yn2wyz]

[atom]

also this code changes the position of the first slider:
[code:1f9xrow8]
—
— Called when a modulator value changes
—

randomSliderColour = function(modulator, newValue)
m = panel:getModulatorByName("modulator-1")

if m ~= nil then
c = m:getComponent()
c:setPropertyString ("componentRectangle", "128 128 64 64")
end
end
[/code:1f9xrow8]

so i guess this should work

[netchose]

it’s ok.

an other question :

is there a way to access to the current modulator.
something like : this:getcomponent()

[atom]

yest and no, in the methods for a modulator the first parameter to the function is the modulator and the 2nd is the new value
so yes
modulator:getComponent() will work in that call, it won’t in the panel call since its triggered in the panel context.

[netchose]

if i link several modulators to an other one modulator , so the current modulator value is equal to the value of this modalor.
it can be a way
since i have made the test, the change of modulator link is made before the lua script

[Author]

Posts