Merge pull request #169 from ZacZhangzhuo/text-font-option

Text font option

CHANGELOG.md

@@ -8,7 +8,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## Unreleased
 
 ### Added
- - Multi-cursor visual effects.
+
+* Added `font` option to `TextObject`.
+* Multi-cursor visual effects.
+
 ### Changed
 
 ### Removed

scripts/v120_fonts.py

@@ -0,0 +1,18 @@
+from compas_view2.shapes import Text
+from compas_view2.app import App
+
+viewer = App()
+
+# By default, the text is rendered using the FreeSans font from the library.
+t = Text("EN", [0, 0, 0], height=50)
+viewer.add(t)
+
+# Font specified is possible.
+t = Text("EN", [3, 0, 0], height=50, font = "Times New Roman")
+viewer.add(t)
+
+# Multi-language text is possible if the machine has the font installed.
+t = Text("中文 CN", [3, 3, 0], height=50, font = "DengXian")
+viewer.add(t)
+
+viewer.show()

src/compas_view2/objects/textobject.py

@@ -7,6 +7,7 @@
 from compas_view2.gl import make_vertex_buffer
 
 from .object import Object
+from matplotlib import font_manager
 
 here = os.path.dirname(__file__)
 fonts = os.path.join(here, "..", "fonts")
@@ -35,7 +36,14 @@ def make_buffers(self):
 
     def make_text_texture(self):
         # change the filename if necessary
-        face = ft.Face(os.path.join(fonts, "FreeSans.ttf"))
+
+        font_dir = os.path.join(fonts, "FreeSans.ttf")
+        if self._data.font:
+            for font in font_manager.fontManager.ttflist:
+                if font.name == self._data.font:
+                    font_dir = font.fname
+                    break
+        face = ft.Face(font_dir)
 
         char_width = 48
         char_height = 80

src/compas_view2/shapes/text.py

@@ -5,8 +5,9 @@
 class Text(Shape):
     """ """
 
-    def __init__(self, text, position=[0, 0, 0], height=50):
+    def __init__(self, text, position=[0, 0, 0], height=50, font=None):
         super().__init__()
         self.text = text
         self.position = Vector(*position)
         self.height = height
+        self.font = font