Commit before breaking everything

[matches/honours.git] / research / transmission_spectroscopy / simulator / pgu-0.18 / pgu / gui / input.py

diff --git a/research/transmission_spectroscopy/simulator/pgu-0.18/pgu/gui/input.py b/research/transmission_spectroscopy/simulator/pgu-0.18/pgu/gui/input.py
new file mode 100644 (file)
index 0000000..f43fd2e
--- /dev/null
+++ b/research/transmission_spectroscopy/simulator/pgu-0.18/pgu/gui/input.py
@@ -0,0 +1,160 @@
+"""
+"""
+import pygame
+from pygame.locals import *
+
+from .const import *
+from . import widget
+
+class Input(widget.Widget):
+    """A single line text input.
+    
+    Example:
+        w = Input(value="Cuzco the Goat",size=20)
+        w = Input("Marbles")
+    
+    """
+
+    _value = None
+
+    def __init__(self,value="",size=20,**params):
+        """Create a new Input widget.
+
+        Keyword arguments:
+            value -- initial text
+            size -- size for the text box, in characters
+
+        """
+        params.setdefault('cls','input')
+        widget.Widget.__init__(self,**params)
+        self.value = value
+        self.pos = len(str(value))
+        self.vpos = 0
+        self.font = self.style.font
+        w,h = self.font.size("e"*size)
+        if not self.style.height: self.style.height = h
+        if not self.style.width: self.style.width = w
+        #self.style.height = max(self.style.height,h)
+        #self.style.width = max(self.style.width,w)
+        #self.rect.w=w+self.style.padding_left+self.style.padding_right;
+        #self.rect.h=h+self.style.padding_top+self.style.padding_bottom;
+    
+    def paint(self,s):
+        r = pygame.Rect(0,0,self.rect.w,self.rect.h)
+        
+        cs = 2 #NOTE: should be in a style
+        
+        w,h = self.font.size(self.value[0:self.pos])
+        x = w-self.vpos
+        if x < 0: self.vpos -= -x
+        if x+cs > s.get_width(): self.vpos += x+cs-s.get_width()
+        
+        s.blit(self.font.render(self.value, 1, self.style.color),(-self.vpos,0))
+        
+        if self.container.myfocus is self:
+            w,h = self.font.size(self.value[0:self.pos])
+            r.x = w-self.vpos
+            r.w = cs
+            r.h = h
+            s.fill(self.style.color,r)
+    
+    def _setvalue(self,v):
+        #self.__dict__['value'] = v
+        self._value = v
+        self.send(CHANGE)
+    
+    def event(self,e):
+        used = None
+        if e.type == KEYDOWN:
+            if e.key == K_BACKSPACE:
+                if self.pos:
+                    self._setvalue(self.value[:self.pos-1] + self.value[self.pos:])
+                    self.pos -= 1
+            elif e.key == K_DELETE:
+                if len(self.value) > self.pos:
+                    self._setvalue(self.value[:self.pos] + self.value[self.pos+1:])
+            elif e.key == K_HOME: 
+                self.pos = 0
+            elif e.key == K_END:
+                self.pos = len(self.value)
+            elif e.key == K_LEFT:
+                if self.pos > 0: self.pos -= 1
+                used = True
+            elif e.key == K_RIGHT:
+                if self.pos < len(self.value): self.pos += 1
+                used = True
+            elif e.key == K_RETURN:
+                self.send(ACTIVATE)
+            elif e.key == K_TAB:
+                pass
+            else:
+                #c = str(e.unicode)
+                if (type(e.unicode) == str):
+                    c = e.unicode
+                else:
+                    c = (e.unicode).encode('latin-1')
+
+                try:
+                    if c:
+                        self._setvalue(self.value[:self.pos] + c + self.value[self.pos:])
+                        self.pos += 1
+                except: #ignore weird characters
+                    pass
+            self.repaint()
+        elif e.type == FOCUS:
+            self.repaint()
+        elif e.type == BLUR:
+            self.repaint()
+        
+        self.pcls = ""
+        if self.container.myfocus is self: self.pcls = "focus"
+        
+        return used
+    
+    @property
+    def value(self):
+        return self._value
+
+    @value.setter
+    def value(self, val):
+        if (val == None): 
+            val = ""
+        val = str(val)
+        self.pos = len(val)
+        oldval = self._value
+        self._value = val
+        if (oldval != val):
+            self.send(CHANGE)
+            self.repaint()
+
+
+class Password(Input):
+    """A password input, in which text is rendered with '*' characters."""
+
+    def paint(self,s):
+        hidden="*"
+        show=len(self.value)*hidden
+        
+        #print "self.value:",self.value
+
+        if self.pos == None: self.pos = len(self.value)
+        
+        r = pygame.Rect(0,0,self.rect.w,self.rect.h)
+        
+        cs = 2 #NOTE: should be in a style
+        
+        w,h = self.font.size(show)
+        x = w-self.vpos
+        if x < 0: self.vpos -= -x
+        if x+cs > s.get_width(): self.vpos += x+cs-s.get_width()
+        
+        s.blit(self.font.render(show, 1, self.style.color),(-self.vpos,0))
+        
+        if self.container.myfocus is self:
+            #w,h = self.font.size(self.value[0:self.pos])            
+            w,h = self.font.size(show[0:self.pos])
+            r.x = w-self.vpos
+            r.w = cs
+            r.h = h
+            s.fill(self.style.color,r)
+