Implement Text#height and Text#width

2 files changed, 55 insertions, 0 deletions

diff --git a/test/testcard.rb b/test/testcard.rb
index b25813b..1951390 100644
--- a/test/testcard.rb
+++ b/test/testcard.rb
@@ -179,6 +179,30 @@ flash = 0
 opacity_square = Square.new(500, 255, 50, ["red", "green", "blue", "yellow"])
 time_start     = Time.now
 
+# Text size
+created_text = Text.new(10, 270, "Created text", 20, font)
+created_text_background = Rectangle.new(
+  created_text.x - 10,
+  created_text.y - 10,
+  created_text.width + 20,
+  created_text.height + 20,
+  "red"
+)
+created_text.remove
+created_text.add
+
+updated_text = Text.new(20 + created_text_background.x2, 270, "Updated text", 20, font)
+updated_text_background = Rectangle.new(
+  updated_text.x - 10,
+  updated_text.y - 10,
+  updated_text.width + 20,
+  updated_text.height + 20,
+  "blue"
+)
+updated_text.remove
+updated_text.add
+UPDATED_TEXT_OPTIONS = "of various size".split(" ")
+
 on key: 'escape' do
   close
 end
@@ -210,6 +234,11 @@ update do
   elapsed_time = Time.now - time_start
   opacity = Math.sin(3 * elapsed_time.to_f).abs
   opacity_square.color.opacity = opacity
+
+  if (get :frames) % 60 == 0
+    updated_text.text = "Updated text " + UPDATED_TEXT_OPTIONS[Time.now.to_i % UPDATED_TEXT_OPTIONS.length]
+    updated_text_background.width = updated_text.width + 20
+  end
 end
 
 show
diff --git a/test/text_spec.rb b/test/text_spec.rb
index 22e17a3..1dc6189 100644
--- a/test/text_spec.rb
+++ b/test/text_spec.rb
@@ -15,4 +15,30 @@ RSpec.describe Ruby2D::Text do
       expect(t.text).to eq "0"
     end
   end
+
+  describe "#width" do
+    it "is known after creation" do
+      t = Text.new(0, 0, "Hello world!", 40, "test/media/bitstream_vera/vera.ttf")
+      expect(t.width).to eq(239)
+    end
+
+    it "is known after updating" do
+      t = Text.new(0, 0, "Good morning world!", 40, "test/media/bitstream_vera/vera.ttf")
+      t.text = "Hello world!"
+      expect(t.width).to eq(239)
+    end
+  end
+
+  describe "#height" do
+    it "is known after creation" do
+      t = Text.new(0, 0, "Hello world!", 40, "test/media/bitstream_vera/vera.ttf")
+      expect(t.height).to eq(48)
+    end
+
+    it "is known after updating" do
+      t = Text.new(0, 0, "Good morning world!", 40, "test/media/bitstream_vera/vera.ttf")
+      t.text = "Hello world!"
+      expect(t.height).to eq(48)
+    end
+  end
 end