Got text wrapping working.

[naja.git] / naja / widgets / text.py

diff --git a/naja/widgets/text.py b/naja/widgets/text.py
index 53030c55b8ad730c4a7725f07dc1bf9c5dcf1f52..8b1e3c68314cec2786f7fbf5aaae8a1291289a5b 100644 (file)
--- a/naja/widgets/text.py
+++ b/naja/widgets/text.py
@@ -26,3 +26,72 @@ class TextWidget(Widget):
 
     def draw(self, surface):
         surface.blit(self.surface, self.rect)
+
+class TextBoxWidget(TextWidget):
+    def __init__(self, *args, **kwargs):
+        self.padding = kwargs.pop('padding', 5)
+        self.border = kwargs.pop('border', 2)
+        self.bg_colour = convert_colour(kwargs.pop('bg_colour',
+                                                   (255, 255, 255, 192)))
+        self.border_colour = convert_colour(kwargs.pop('border_colour',
+                                                       (0, 0, 0)))
+        self.box_width = kwargs.pop('box_width', 0)
+
+        super(TextBoxWidget,self).__init__(*args, **kwargs)
+
+    def prepare(self):
+        self.font = resources.get_font(self.fontname, self.fontsize)
+        self.lines = []
+        height = 0
+        width = 0
+        for line in self.text.split('\n'):
+            if self.box_width is not 0:
+                current_line = ''
+                current_line_rendered = None
+                for word in line.split(' '):
+                    if len(current_line) > 0:
+                        current_line += ' '+ word
+                    else:
+                        current_line = word
+                    line = self.font.render(current_line, True, self.colour)
+                    if line.get_rect().width <= self.box_width:
+                        current_line_rendered = line
+                        width = max(width, line.get_rect().width)
+                        height += line.get_rect().height
+                    elif current_line_rendered is not None:
+                        line_rect = current_line_rendered.get_rect()
+                        self.lines.append(pygame.transform.scale(
+                            current_line_rendered,(line_rect.width * 2,
+                                                   line_rect.height * 2)))
+                        current_line = word
+                        current_line_rendered = self.font.render(word, True, self.colour)
+                    else:
+                        raise Exception('Line too long. Please resize or rephrase')
+                if current_line_rendered is not None:
+                    line_rect = current_line_rendered.get_rect()
+                    self.lines.append(pygame.transform.scale(
+                        current_line_rendered,(line_rect.width * 2,
+                                               line_rect.height * 2)))
+            else:
+                line = self.font.render(line, True, self.colour)
+                line_rect = line.get_rect()
+                width = max(width, line.get_rect().width)
+                height += line.get_rect().height
+                self.lines.append(pygame.transform.scale(line, (line_rect.width * 2,
+                                                             line_rect.height * 2)))
+
+        width += 2 + self.padding
+        height += 2 + self.padding
+        self.surface = pygame.surface.Surface((width, height),
+                                              pygame.locals.SRCALPHA)
+
+    def draw(self, surface):
+        self.surface.fill(self.bg_colour)
+        y = 0
+        for line in self.lines:
+            surface.blit(line, (self.padding, y + self.padding))
+            y += line.get_rect().height
+        self.text_rect = surface.get_rect()
+        if not self.size:
+            self.rect.size = self.text_rect.size
+