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Diffstat (limited to 'pgu/gui/button.py')
| -rw-r--r-- | pgu/gui/button.py | 351 |
1 files changed, 351 insertions, 0 deletions
diff --git a/pgu/gui/button.py b/pgu/gui/button.py new file mode 100644 index 0000000..90cdd1e --- /dev/null +++ b/pgu/gui/button.py @@ -0,0 +1,351 @@ +""" +""" + +from pygame.locals import * + +from const import * +import widget, surface +import basic + +class _button(widget.Widget): + def __init__(self,**params): + widget.Widget.__init__(self,**params) + self.state = 0 + + def event(self,e): + if e.type == ENTER: self.repaint() + elif e.type == EXIT: self.repaint() + elif e.type == FOCUS: self.repaint() + elif e.type == BLUR: self.repaint() + elif e.type == KEYDOWN: + if e.key == K_SPACE or e.key == K_RETURN: + self.state = 1 + self.repaint() + elif e.type == MOUSEBUTTONDOWN: + self.state = 1 + self.repaint() + elif e.type == KEYUP: + if self.state == 1: + sub = pygame.event.Event(CLICK,{'pos':(0,0),'button':1}) + #self.send(sub.type,sub) + self._event(sub) + + self.state = 0 + self.repaint() + elif e.type == MOUSEBUTTONUP: + self.state = 0 + self.repaint() + elif e.type == CLICK: + self.click() + + self.pcls = "" + if self.state == 0 and self.container.myhover is self: + self.pcls = "hover" + if self.state == 1 and self.container.myhover is self: + self.pcls = "down" + + def click(self): + pass + + +class Button(_button): + """A button, buttons can be clicked, they are usually used to set up callbacks. + + <pre>Button(value=None)</pre> + + <dl> + <dt>value<dd>either a widget or a string + </dl> + + <strong>Example</strong> + <code> + w = gui.Button("Click Me") + w.connect(gui.CLICK,fnc,value) + </code> + """ + def __init__(self,value=None,**params): + params.setdefault('cls','button') + _button.__init__(self,**params) + self.value = value + + def __setattr__(self,k,v): + if k == 'value' and type(v) == str: v = basic.Label(v,cls=self.cls+".label") + _v = self.__dict__.get(k,NOATTR) + self.__dict__[k]=v + if k == 'value' and v != None: + pass + + if k == 'value' and _v != NOATTR and _v != None and _v != v: + self.send(CHANGE) + self.chsize() + + def resize(self,width=None,height=None): + self.value.rect.x,self.value.rect.y = 0,0 + self.value.rect.w,self.value.rect.h = self.value.resize(width,height) + return self.value.rect.w,self.value.rect.h +# +# self.value._resize() +# self.rect.w,self.rect.h = self.value.rect_margin.w,self.value.rect_margin.h +# +# if self.style.width: self.rect.w = max(self.rect.w,self.style.width) +# if self.style.height: self.rect.w = max(self.rect.w,self.style.height) +# +# xt,xr,xb,xl = self.value.getspacing() +# +# self.value._resize(self.rect.w-(xl+xr),self.rect.h-(xt+xb)) +# + def paint(self,s): + self.value.pcls = self.pcls + self.value.paint(surface.subsurface(s,self.value.rect)) + +class Switch(_button): + """A switch can have two states, True or False. + + <pre>Switch(value=False)</pre> + + <dl> + <dt>value<dd>initial value, (True, False) + </dl> + + <strong>Example</strong> + <code> + w = gui.Switch(True) + w.connect(gui.CHANGE,fnc,value) + </code> + """ + def __init__(self,value=False,**params): + params.setdefault('cls','switch') + _button.__init__(self,**params) + self.value = value + + img = self.style.off + self.style.width = img.get_width() + self.style.height = img.get_height() + + def paint(self,s): + #self.pcls = "" + #if self.container.myhover is self: self.pcls = "hover" + if self.value: img = self.style.on + else: img = self.style.off + s.blit(img,(0,0)) + + def __setattr__(self,k,v): + _v = self.__dict__.get(k,NOATTR) + self.__dict__[k]=v + if k == 'value' and _v != NOATTR and _v != v: + self.send(CHANGE) + self.repaint() + + def click(self): + self.value = not self.value + +class Checkbox(_button): + """Within a Group of Checkbox widgets several may be selected at a time. + + <pre>Checkbox(group,value=None)</pre> + + <dl> + <dt>group<dd>a gui.Group for the Checkbox to belong to + <dt>value<dd>the value + </dl> + + <strong>Example</strong> + <code> + g = gui.Group(name='colors',value=['r','b']) + + t = gui.Table() + t.tr() + t.td(gui.Label('Red')) + t.td(gui.Checkbox(g,'r')) + t.tr() + t.td(gui.Label('Green')) + t.td(gui.Checkbox(g,'g')) + t.tr() + t.td(gui.Label('Blue')) + t.td(gui.Checkbox(g,'b')) + </code> + """ + + def __init__(self,group,value=None,**params): + params.setdefault('cls','checkbox') + _button.__init__(self,**params) + self.group = group + self.group.add(self) + if self.group.value == None: + self.group.value = [] + self.value = value + + img = self.style.off + self.style.width = img.get_width() + self.style.height = img.get_height() + + def paint(self,s): + #self.pcls = "" + #if self.container.myhover is self: self.pcls = "hover" + if self.value in self.group.value: img = self.style.on + else: img = self.style.off + + s.blit(img,(0,0)) + + def click(self): + if self.value in self.group.value: + self.group.value.remove(self.value) + else: + self.group.value.append(self.value) + self.group._change() + +class Radio(_button): + """Within a Group of Radio widgets only one may be selected at a time. + + <pre>Radio(group,value=None)</pre> + + <dl> + <dt>group<dd>a gui.Group for the Radio to belong to + <dt>value<dd>the value + </dl> + + <strong>Example</strong> + <code> + g = gui.Group(name='colors',value='g') + + t = gui.Table() + t.tr() + t.td(gui.Label('Red')) + t.td(gui.Radio(g,'r')) + t.tr() + t.td(gui.Label('Green')) + t.td(gui.Radio(g,'g')) + t.tr() + t.td(gui.Label('Blue')) + t.td(gui.Radio(g,'b')) + </code> + """ + + + def __init__(self,group=None,value=None,**params): + params.setdefault('cls','radio') + _button.__init__(self,**params) + self.group = group + self.group.add(self) + self.value = value + + img = self.style.off + self.style.width = img.get_width() + self.style.height = img.get_height() + + def paint(self,s): + #self.pcls = "" + #if self.container.myhover is self: self.pcls = "hover" + if self.group.value == self.value: img = self.style.on + else: img = self.style.off + s.blit(img,(0,0)) + + def click(self): + self.group.value = self.value + +class Tool(_button): + """Within a Group of Tool widgets only one may be selected at a time. + + <pre>Tool(group,widget=None,value=None)</pre> + + <dl> + <dt>group<dd>a gui.Group for the Tool to belong to + <dt>widget<dd>a widget to appear on the Tool (similar to a Button) + <dt>value<dd>the value + </dl> + + <strong>Example</strong> + <code> + g = gui.Group(name='colors',value='g') + + t = gui.Table() + t.tr() + t.td(gui.Tool(g,'Red','r')) + t.tr() + t.td(gui.Tool(g,'Green','g')) + t.tr() + t.td(gui.Tool(g,'Blue','b')) + </code> + """ + + def __init__(self,group,widget=None,value=None,**params): #TODO widget= could conflict with module widget + params.setdefault('cls','tool') + _button.__init__(self,**params) + self.group = group + self.group.add(self) + self.value = value + + if widget: + self.setwidget(widget) + + if self.group.value == self.value: self.pcls = "down" + + def setwidget(self,w): + self.widget = w + + def resize(self,width=None,height=None): + self.widget.rect.w,self.widget.rect.h = self.widget.resize() + #self.widget._resize() + #self.rect.w,self.rect.h = self.widget.rect_margin.w,self.widget.rect_margin.h + + return self.widget.rect.w,self.widget.rect.h + + def event(self,e): + _button.event(self,e) + if self.group.value == self.value: self.pcls = "down" + + def paint(self,s): + if self.group.value == self.value: self.pcls = "down" + self.widget.paint(surface.subsurface(s,self.widget.rect)) + + def click(self): + self.group.value = self.value + for w in self.group.widgets: + if w != self: w.pcls = "" + + +class Icon(_button): + """TODO - might be deprecated + """ + def __init__(self,cls,**params): + params['cls'] = cls + _button.__init__(self,**params) + s = self.style.image + self.style.width = s.get_width() + self.style.height = s.get_height() + self.state = 0 + + def paint(self,s): + #self.pcls = "" + #if self.state == 0 and hasattr(self.container,'myhover') and self.container.myhover is self: self.pcls = "hover" + #if self.state == 1 and hasattr(self.container,'myhover') and self.container.myhover is self: self.pcls = "down" + s.blit(self.style.image,(0,0)) + +class Link(_button): + """A link, links can be clicked, they are usually used to set up callbacks. + Basically the same as the button widget, just text only with a different cls. Made for + convenience. + + <pre>Link(value=None)</pre> + + <dl> + <dt>value<dd>a string + </dl> + + <strong>Example</strong> + <code> + w = gui.Link("Click Me") + w.connect(gui.CLICK,fnc,value) + </code> + """ + def __init__(self,value,**params): + params.setdefault('focusable',True) + params.setdefault('cls','link') + _button.__init__(self,**params) + self.value = value + self.font = self.style.font + self.style.width, self.style.height = self.font.size(self.value) + + def paint(self,s): + s.blit(self.font.render(self.value, 1, self.style.color),(0,0)) + |