Difference between revisions of "UI Buttons"

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__TOC__
 
__TOC__
  
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<languages />
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Here you will find various resources to help you create buttons in Gideros Studio.
  
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<translate><!--T:1--> Here you will find various resources to help you create buttons in Gideros Studio.</translate>
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'''DESKTOPS, MOBILE & HTML5 COMPATIBLE THEY ARE!'''
  
 +
'''note''': you may have to provide your own assets (fonts, gfx, …)
  
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<translate><!--T:1--> '''note''':You may have to provide your own assets (fonts, gfx, …).</translate>
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=== Button '''[[Button_class]]''' ===
 +
This is the base of all Gideros buttons.
  
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=== <translate>Simple Button</translate> ===
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{{#widget:GApp|app=ButtonDemo1.GApp|width=300|height=180}}
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<br/>
 
  
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<source lang="lua">
 
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--[[
 
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A generic button class
 
  
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This code is MIT licensed, see http://www.opensource.org/licenses/mit-license.php
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=== Button Text '''[[ButtonText_class]]''' ===
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(C) 2010 - 2011 Gideros Mobile
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This is almost the same as '''Button''' but with some text you can add.
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]]
 
  
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Button = Core.class(Sprite)
 
  
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function Button:init(upState, downState) -- upstate and downstate are bitmaps
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=== Button Disabled '''[[ButtonDisabled_class]]''' ===
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self.upState = upState
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This is the same as '''Button''' but with a Disabled state.
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self.downState = downState
 
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self.focus = false
 
  
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-- set the visual state as "up"
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{{#widget:GApp|app=ButtonDisabledDemo1.GApp|width=300|height=180}}
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self:updateVisualState(false)
 
  
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-- register to all mouse and touch events
 
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self:addEventListener(Event.MOUSE_DOWN, self.onMouseDown, self)
 
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self:addEventListener(Event.MOUSE_MOVE, self.onMouseMove, self)
 
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self:addEventListener(Event.MOUSE_UP, self.onMouseUp, self)
 
  
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self:addEventListener(Event.TOUCHES_BEGIN, self.onTouchesBegin, self)
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=== Button Toggle '''[[ButtonToggle_class]]''' ===
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self:addEventListener(Event.TOUCHES_MOVE, self.onTouchesMove, self)
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A button you can toggle on and off.
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self:addEventListener(Event.TOUCHES_END, self.onTouchesEnd, self)
 
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self:addEventListener(Event.TOUCHES_CANCEL, self.onTouchesCancel, self)
 
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end
 
  
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function Button:onMouseDown(event)
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{{#widget:GApp|app=ButtonToggleDemo1.GApp|width=320|height=180}}
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if self:hitTestPoint(event.x, event.y) then
 
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self.focus = true
 
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self:updateVisualState(true)
 
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event:stopPropagation()
 
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end
 
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end
 
  
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function Button:onMouseMove(event)
 
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if self.focus then
 
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if not self:hitTestPoint(event.x, event.y) then
 
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self.focus = false
 
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self:updateVisualState(false)
 
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end
 
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event:stopPropagation()
 
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end
 
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end
 
  
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function Button:onMouseUp(event)
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=== Button Monster '''[[ButtonMonster_class]]''' ===
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if self.focus then
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This button has a lot: mouse and keyboard navigation, hover, tooltip, sound, ... It may look scary but it is a nice monster ;-)
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self.focus = false
 
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self:updateVisualState(false)
 
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self:dispatchEvent(Event.new("click")) -- button is clicked, dispatch "click" event
 
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event:stopPropagation()
 
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end
 
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end
 
  
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-- if button is on focus, stop propagation of touch events
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{{#widget:GApp|app=ButtonMonsterDemo2x.GApp|width=320|height=180}}
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function Button:onTouchesBegin(event)
 
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if self.focus then
 
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event:stopPropagation()
 
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end
 
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end
 
  
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-- if button is on focus, stop propagation of touch events
 
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function Button:onTouchesMove(event)
 
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if self.focus then
 
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event:stopPropagation()
 
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end
 
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end
 
  
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-- if button is on focus, stop propagation of touch events
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=== Button Beast '''[[ButtonBeast_class]]''' ===
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function Button:onTouchesEnd(event)
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This is like the '''Button Monster''' but without tooltip and without integrated keyboard navigation.
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if self.focus then
 
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event:stopPropagation()
 
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end
 
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end
 
  
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-- if touches are cancelled, reset the state of the button
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{{#widget:GApp|app=ButtonBeastDemo1.GApp|width=320|height=180}}
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function Button:onTouchesCancel(event)
 
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if self.focus then
 
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self.focus = false;
 
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self:updateVisualState(false)
 
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event:stopPropagation()
 
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end
 
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end
 
  
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-- if state is true show downState else show upState
 
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function Button:updateVisualState(state)
 
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if state then
 
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if self:contains(self.upState) then
 
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self:removeChild(self.upState)
 
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end
 
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if not self:contains(self.downState) then
 
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self:addChild(self.downState)
 
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end
 
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else
 
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if self:contains(self.downState) then
 
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self:removeChild(self.downState)
 
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end
 
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if not self:contains(self.upState) then
 
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self:addChild(self.upState)
 
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end
 
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end
 
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end
 
  
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---- USAGE
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{{GIDEROS IMPORTANT LINKS}}
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---- clickable button (arrow button)
 
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--local arrow = Texture.new("gfx/arrow_right.png")
 
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--local arrow_pressed = Texture.new("gfx/arrow_right_down.png")
 
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--local button = Button.new(Bitmap.new(arrow), Bitmap.new(arrow_pressed))
 
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--button:addEventListener("click", function()
 
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-- -- your code here
 
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--end)
 
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</source>
 
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=== <translate>Button with Text</translate> ===
 
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<br/>
 
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<source lang="lua">
 
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ButtonText = Core.class(Sprite)
 
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function ButtonText:init(text, tfont, tcolor, tscalex, tscaley, upState, downState)
 
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if text ~= nil then
 
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self.text = TextField.new(tfont, text, text) -- string
 
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self.text:setAnchorPoint(0.5, 0.5)
 
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self.text:setScale(tscalex or 1, tscaley or 1)
 
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self.text:setTextColor(tcolor or 0xFFFFFF)
 
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self.textwidth = self.text:getWidth()
 
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self.textheight = self.text:getHeight()
 
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self:addChild(self.text)
 
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self.hastext = true
 
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else
 
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self.hastext = false
 
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end
 
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if upState ~= nil then
 
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self.upState = Bitmap.new(Texture.new(upState))-- png path
 
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self.downState = Bitmap.new(Texture.new(downState or upState)) -- png path
 
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self.upState:setAnchorPoint(0.5, 0.5)
 
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self.downState:setAnchorPoint(0.5, 0.5)
 
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self.bmpwidth = self.upState:getWidth()
 
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self.bmpheight = self.upState:getHeight()
 
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self.hasbmp = true
 
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else
 
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self.hasbmp = false
 
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end
 
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if not self.hastext and not self.hasbmp then
 
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print("*** ERROR: BUTTONTEXT NEEDS AT LEAST SOME TEXT OR SOME BITMAP! ***")
 
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end
 
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if self.hasbmp then
 
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self:updateVisualState(false)
 
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end
 
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self.focus = false
 
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self:addEventListener(Event.MOUSE_DOWN, self.onMouseDown, self)
 
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self:addEventListener(Event.MOUSE_MOVE, self.onMouseMove, self)
 
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self:addEventListener(Event.MOUSE_UP, self.onMouseUp, self)
 
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self:addEventListener(Event.TOUCHES_BEGIN, self.onTouchesBegin, self)
 
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self:addEventListener(Event.TOUCHES_MOVE, self.onTouchesMove, self)
 
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self:addEventListener(Event.TOUCHES_END, self.onTouchesEnd, self)
 
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self:addEventListener(Event.TOUCHES_CANCEL, self.onTouchesCancel, self)
 
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end
 
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-- BUTTONTEXT FUNCTIONS
 
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function ButtonText:setTextView(xcolor, xscalex, xscaley)
 
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self.text:setTextColor(xcolor)
 
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self.text:setScale(xscalex, xscaley)
 
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end
 
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function ButtonText:setText(xtext, xupper)
 
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if xupper then
 
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self.text:setText(string.upper(xtext))
 
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else
 
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self.text:setText(xtext)
 
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end
 
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end
 
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function ButtonText:setTextColor(xcolor)
 
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self.text:setTextColor(xcolor or 0xff0000)
 
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end
 
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function ButtonText:show()
 
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self:addChild(self.text)
 
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if self.downState ~= nil then self:addChild(self.downState) end
 
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if self.upState ~= nil then self:addChild(self.upState) end
 
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end
 
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function ButtonText:hide()
 
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self:removeChild(self.text)
 
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if self.downState ~= nil then self:removeChild(self.downState) end
 
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if self.upState ~= nil then self:removeChild(self.upState) end
 
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end
 
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function ButtonText:updateVisualState(state)
 
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if self.hasbmp then
 
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-- if state is true show downState bitmap else show upState bitmap
 
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if state then
 
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if self:contains(self.upState) then
 
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self:removeChild(self.upState)
 
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end
 
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if not self:contains(self.downState) then
 
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self:addChild(self.downState)
 
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end
 
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if self:contains(self.text) then
 
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self:addChild(self.text)
 
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end
 
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else
 
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if self:contains(self.downState) then
 
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self:removeChild(self.downState)
 
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end
 
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if not self:contains(self.upState) then
 
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self:addChild(self.upState)
 
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end
 
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if self:contains(self.text) then
 
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self:addChild(self.text)
 
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end
 
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end
 
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end
 
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end
 
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-- BUTTONTEXT LISTENERS
 
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function ButtonText:onMouseDown(event)
 
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if self:hitTestPoint(event.x, event.y) then
 
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self.focus = true
 
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self:updateVisualState(true)
 
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event:stopPropagation()
 
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end
 
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end
 
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function ButtonText:onMouseMove(event)
 
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if self.focus then
 
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if not self:hitTestPoint(event.x, event.y) then
 
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self.focus = false;
 
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self:updateVisualState(false)
 
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end
 
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event:stopPropagation()
 
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end
 
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end
 
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function ButtonText:onMouseUp(event)
 
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if self.focus then
 
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self.focus = false;
 
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self:updateVisualState(false)
 
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self:dispatchEvent(Event.new("click"))
 
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event:stopPropagation()
 
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end
 
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end
 
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function ButtonText:onTouchesBegin(event)
 
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-- if button is on focus, stop propagation of touch events
 
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if self.focus then
 
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event:stopPropagation()
 
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end
 
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end
 
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function ButtonText:onTouchesMove(event)
 
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-- if button is on focus, stop propagation of touch events
 
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if self.focus then
 
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event:stopPropagation()
 
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end
 
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end
 
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function ButtonText:onTouchesEnd(event)
 
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-- if button is on focus, stop propagation of touch events
 
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if self.focus then
 
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event:stopPropagation()
 
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end
 
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end
 
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function ButtonText:onTouchesCancel(event)
 
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-- if touches are cancelled, reset the state of the button
 
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if self.focus then
 
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self.focus = false;
 
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self:updateVisualState(false)
 
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event:stopPropagation()
 
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end
 
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end
 
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---- USAGE
 
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--local btntext = ButtonText.new("Level 1", nil, 0xFF0000, 3, 3, "gfx/ui/button.png", nil)
 
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--btntext:setPosition(128, 128)
 
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--stage:addChild(btntext)
 
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--btntext:addEventListener("click", function()
 
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-- -- your code here
 
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--end)
 
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</source>
 
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<br/>
 

Latest revision as of 19:44, 1 December 2023

Here you will find various resources to help you create buttons in Gideros Studio. 

DESKTOPS, MOBILE & HTML5 COMPATIBLE THEY ARE!

note: you may have to provide your own assets (fonts, gfx, …)

Button Button_class

This is the base of all Gideros buttons.


Button Text ButtonText_class

This is almost the same as Button but with some text you can add.


Button Disabled ButtonDisabled_class

This is the same as Button but with a Disabled state.


Button Toggle ButtonToggle_class

A button you can toggle on and off.


Button Monster ButtonMonster_class

This button has a lot: mouse and keyboard navigation, hover, tooltip, sound, ... It may look scary but it is a nice monster ;-)


Button Beast ButtonBeast_class

This is like the Button Monster but without tooltip and without integrated keyboard navigation.


Retrieved from ‘https://wiki.gideros.rocks/index.php?title=UI_Buttons&oldid=23179’