From 0f75f79498ebd13a78e7ca984ab8430f532c2692 Mon Sep 17 00:00:00 2001
From: Dominic Masters <dominic@domsplace.com>
Date: Mon, 20 Mar 2023 21:12:03 -0700
Subject: [PATCH] Testing UI without assets.

---
 src/dawn/display/font/CMakeLists.txt          |   1 +
 src/dawn/display/font/ExampleFont.cpp         | 104 ++++++++++++++++++
 src/dawn/display/font/ExampleFont.hpp         |  22 ++++
 src/dawn/scene/components/ui/UILabel.cpp      |   2 +-
 src/dawnhelloworld/scenes/HelloWorldScene.hpp |  22 ++++
 src/dawnopengl/display/RenderManager.cpp      |   4 +-
 src/dawnopengl/display/RenderManager.hpp      |   2 +
 7 files changed, 154 insertions(+), 3 deletions(-)
 create mode 100644 src/dawn/display/font/ExampleFont.cpp
 create mode 100644 src/dawn/display/font/ExampleFont.hpp

diff --git a/src/dawn/display/font/CMakeLists.txt b/src/dawn/display/font/CMakeLists.txt
index ebbca010..598e1587 100644
--- a/src/dawn/display/font/CMakeLists.txt
+++ b/src/dawn/display/font/CMakeLists.txt
@@ -7,6 +7,7 @@
 target_sources(${DAWN_TARGET_NAME}
   PRIVATE
     BitmapFont.cpp
+    ExampleFont.cpp
     TrueTypeFont.cpp
     FontMeasure.cpp
 )
\ No newline at end of file
diff --git a/src/dawn/display/font/ExampleFont.cpp b/src/dawn/display/font/ExampleFont.cpp
new file mode 100644
index 00000000..48a07a31
--- /dev/null
+++ b/src/dawn/display/font/ExampleFont.cpp
@@ -0,0 +1,104 @@
+// Copyright (c) 2023 Dominic Masters
+// 
+// This software is released under the MIT License.
+// https://opensource.org/licenses/MIT
+
+#include "ExampleFont.hpp"
+
+using namespace Dawn;
+
+ExampleFont::ExampleFont() : realTilesetGrid(128/8, 64/8, 128, 64, 0, 0, 0, 0) {
+  this->texture = &this->realTexture;
+  this->tileset = &this->realTilesetGrid;
+}
+
+struct Color ExampleFont::getColor(uint8_t n) {
+  if(n == 0) return COLOR_TRANSPARENT;
+  return COLOR_WHITE;
+}
+
+void ExampleFont::init() {  
+  struct Color pixels[128*64];
+  uint8_t data[] = {
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x30, 0xD8, 0x50, 0x78, 0xC8, 0x70, 0x30, 0x30, 0x60, 0x48, 0x20, 0x00, 0x00, 0x00, 0x18, 
+    0x00, 0x30, 0xD8, 0xF8, 0xA0, 0xD0, 0xC8, 0x30, 0x60, 0x30, 0x30, 0x20, 0x00, 0x00, 0x00, 0x30, 
+    0x00, 0x30, 0x90, 0x50, 0x70, 0x20, 0x60, 0x60, 0x60, 0x30, 0x78, 0xF8, 0x00, 0xF8, 0x00, 0x60, 
+    0x00, 0x00, 0x00, 0xF8, 0x28, 0x58, 0xD4, 0x00, 0x60, 0x30, 0x30, 0x20, 0x30, 0x00, 0x30, 0xC0, 
+    0x00, 0x30, 0x00, 0x50, 0xF0, 0x98, 0xC8, 0x00, 0x30, 0x60, 0x48, 0x20, 0x30, 0x00, 0x30, 0x80, 
+    0x00, 0x00, 0x00, 0x00, 0x20, 0x00, 0x74, 0x00, 0x00, 0x00, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x70, 0x10, 0xF0, 0xF0, 0x38, 0xF8, 0x70, 0xF8, 0x70, 0x70, 0x30, 0x30, 0x18, 0x00, 0x60, 0xF0, 
+    0x88, 0x30, 0x08, 0x08, 0x48, 0x80, 0x80, 0x08, 0x88, 0x88, 0x30, 0x30, 0x30, 0xF8, 0x30, 0x08, 
+    0x88, 0x10, 0x70, 0x30, 0x88, 0xF0, 0xF0, 0x10, 0x70, 0x78, 0x00, 0x00, 0x60, 0x00, 0x18, 0x70, 
+    0x88, 0x10, 0x80, 0x08, 0xF8, 0x08, 0x88, 0x20, 0x88, 0x08, 0x30, 0x30, 0x30, 0xF8, 0x30, 0x00, 
+    0x70, 0x10, 0xF8, 0xF0, 0x08, 0xF0, 0x70, 0x20, 0x70, 0x70, 0x30, 0x10, 0x18, 0x00, 0x60, 0x60, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x70, 0x70, 0xF0, 0x78, 0xF0, 0xF8, 0xF8, 0x78, 0x88, 0xF8, 0x08, 0x48, 0x80, 0x88, 0x88, 0x70, 
+    0x88, 0x88, 0x88, 0x80, 0x88, 0x80, 0x80, 0x80, 0x88, 0x20, 0x08, 0x50, 0x80, 0xD8, 0xC8, 0x88, 
+    0xB8, 0x88, 0xF0, 0x80, 0x88, 0xF0, 0xF0, 0xB8, 0xF8, 0x20, 0x08, 0x60, 0x80, 0xA8, 0xA8, 0x88, 
+    0x80, 0xF8, 0x88, 0x80, 0x88, 0x80, 0x80, 0x88, 0x88, 0x20, 0x88, 0x50, 0x80, 0x88, 0x98, 0x88, 
+    0x70, 0x88, 0xF0, 0x78, 0xF0, 0xF8, 0x80, 0x78, 0x88, 0xF8, 0x70, 0x48, 0xF8, 0x88, 0x88, 0x70, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0xF0, 0x70, 0xF0, 0x78, 0xF8, 0x88, 0x88, 0x88, 0x88, 0x88, 0xF8, 0xF0, 0x80, 0xF0, 0x20, 0x00, 
+    0x88, 0x88, 0x88, 0x80, 0x20, 0x88, 0x88, 0x88, 0x50, 0x50, 0x10, 0xC0, 0xC0, 0x30, 0x50, 0x00, 
+    0xF0, 0x88, 0xF0, 0x70, 0x20, 0x88, 0x88, 0xA8, 0x20, 0x20, 0x20, 0xC0, 0x60, 0x30, 0x88, 0x00, 
+    0x80, 0x88, 0xA0, 0x08, 0x20, 0x88, 0x50, 0xD8, 0x50, 0x20, 0x40, 0xC0, 0x30, 0x30, 0x00, 0x00, 
+    0x80, 0x70, 0x98, 0xF0, 0x20, 0x78, 0x20, 0x88, 0x88, 0x20, 0xF8, 0xF0, 0x18, 0xF0, 0x00, 0xF8, 
+    0x00, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x30, 0x70, 0xF0, 0x78, 0xF0, 0xF8, 0xF8, 0x78, 0x88, 0x70, 0x08, 0x48, 0x40, 0x88, 0x88, 0x70, 
+    0x30, 0x88, 0x88, 0x80, 0x88, 0x80, 0x80, 0x80, 0x88, 0x20, 0x08, 0x50, 0x40, 0xD8, 0xC8, 0x88, 
+    0x18, 0x88, 0xF0, 0x80, 0x88, 0xF0, 0xF0, 0xB8, 0xF8, 0x20, 0x08, 0x60, 0x40, 0xA8, 0xA8, 0x88, 
+    0x00, 0xF8, 0x88, 0x80, 0x88, 0x80, 0x80, 0x88, 0x88, 0x20, 0x88, 0x50, 0x40, 0x88, 0x98, 0x88, 
+    0x00, 0x88, 0xF0, 0x78, 0xF0, 0xF8, 0x80, 0x78, 0x88, 0x70, 0x70, 0x48, 0x78, 0x88, 0x88, 0x70, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0xF0, 0x70, 0xF0, 0x78, 0xF8, 0x88, 0x88, 0x88, 0x88, 0x88, 0xF8, 0x70, 0x30, 0x70, 0x48, 0x00, 
+    0x88, 0x88, 0x88, 0x80, 0x20, 0x88, 0x88, 0x88, 0x50, 0x50, 0x10, 0x60, 0x30, 0x30, 0xB0, 0x00, 
+    0xF0, 0x88, 0xF0, 0x70, 0x20, 0x88, 0x88, 0xA8, 0x20, 0x20, 0x20, 0xC0, 0x30, 0x18, 0x00, 0x00, 
+    0x80, 0x88, 0xA0, 0x08, 0x20, 0x88, 0x50, 0xD8, 0x50, 0x20, 0x40, 0x60, 0x30, 0x30, 0x00, 0x00, 
+    0x80, 0x70, 0x98, 0xF0, 0x20, 0x78, 0x20, 0x88, 0x88, 0x20, 0xF8, 0x70, 0x30, 0x70, 0x00, 0x00, 
+    0x00, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+  };
+
+  int32_t j = 0;
+  for(int32_t i = 0; i < ((128/8) * 64); i++) {
+    uint8_t n = data[i];
+    pixels[j++] = this->getColor(n & 0x80);
+    pixels[j++] = this->getColor(n & 0x40);
+    pixels[j++] = this->getColor(n & 0x20);
+    pixels[j++] = this->getColor(n & 0x10);
+    pixels[j++] = this->getColor(n & 0x08);
+    pixels[j++] = this->getColor(n & 0x04);
+    pixels[j++] = this->getColor(n & 0x02);
+    pixels[j++] = this->getColor(n & 0x01);
+  }
+
+  this->realTexture.setSize(128, 64);
+  this->realTexture.buffer(pixels);
+}
diff --git a/src/dawn/display/font/ExampleFont.hpp b/src/dawn/display/font/ExampleFont.hpp
new file mode 100644
index 00000000..dc0b68e9
--- /dev/null
+++ b/src/dawn/display/font/ExampleFont.hpp
@@ -0,0 +1,22 @@
+// Copyright (c) 2023 Dominic Masters
+// 
+// This software is released under the MIT License.
+// https://opensource.org/licenses/MIT
+
+#pragma once
+#include "BitmapFont.hpp"
+
+namespace Dawn {
+  class ExampleFont : public BitmapFont {
+    protected:
+      Texture realTexture;
+      TilesetGrid realTilesetGrid;
+
+      struct Color getColor(uint8_t n);
+
+    public:
+      ExampleFont();
+
+      void init();
+  };
+}
\ No newline at end of file
diff --git a/src/dawn/scene/components/ui/UILabel.cpp b/src/dawn/scene/components/ui/UILabel.cpp
index 2b1d46b2..68580e10 100644
--- a/src/dawn/scene/components/ui/UILabel.cpp
+++ b/src/dawn/scene/components/ui/UILabel.cpp
@@ -12,7 +12,7 @@ UILabel::UILabel(SceneItem *item) :
   UIComponent(item),
   text(""),
   fontSize(10.0f),
-  font(nullptr),
+  font(&item->scene->game->renderManager.defaultFont),
   maxWidth(UI_LABEL_MAX_WIDTH_NONE)
 {
 }
diff --git a/src/dawnhelloworld/scenes/HelloWorldScene.hpp b/src/dawnhelloworld/scenes/HelloWorldScene.hpp
index 4c6a9e90..279a7a5d 100644
--- a/src/dawnhelloworld/scenes/HelloWorldScene.hpp
+++ b/src/dawnhelloworld/scenes/HelloWorldScene.hpp
@@ -6,17 +6,39 @@
 #pragma once
 #include "scene/Scene.hpp"
 #include "prefabs/SimpleSpinningCubePrefab.hpp"
+#include "scene/components/ui/UILabel.hpp"
+#include "scene/components/ui/UIImage.hpp"
+#include "display/font/BitmapFont.hpp"
 
 namespace Dawn {
   class HelloWorldScene : public Scene {
     protected:
       Camera *camera;
       SimpleSpinningCubePrefab *cube;
+      UICanvas *canvas;
+      UILabel *label;
+      UIImage *image;
+      BitmapFont font;
 
       void stage() override {
         camera = Camera::create(this);
         camera->transform->lookAt(glm::vec3(3, 3, 3), glm::vec3(0, 0, 0));
+
         cube = SimpleSpinningCubePrefab::create(this);
+
+        canvas = UICanvas::create(this);
+
+        auto imageItem = this->createSceneItem();
+        image = imageItem->addComponent<UIImage>();
+        image->color = COLOR_BLACK;
+        imageItem->transform.setParent(canvas->transform);
+
+        auto labelItem = this->createSceneItem();
+        label = labelItem->addComponent<UILabel>();
+        labelItem->transform.setParent(canvas->transform);
+        label->text = "Hello World, how are you today? I hope you are doing well. I really like the fact I can ramble in my text for once.";
+        label->maxWidth = 220;
+        image->alignment = glm::vec4(0, 0, label->getContentWidth(), label->getContentHeight());
       }
       
       std::vector<Asset*> getRequiredAssets() override {
diff --git a/src/dawnopengl/display/RenderManager.cpp b/src/dawnopengl/display/RenderManager.cpp
index e123b5e7..d38fc59a 100644
--- a/src/dawnopengl/display/RenderManager.cpp
+++ b/src/dawnopengl/display/RenderManager.cpp
@@ -18,15 +18,15 @@ RenderManager::RenderManager(DawnGame *game) :
 
 void RenderManager::init() {
   this->renderPipeline.init();
-  
   this->simpleShader.compile();
   this->uiShaderProgram.compile();
-
   // Prepare the initial values
   glEnable(GL_TEXTURE_2D);
   glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
   glDepthMask(GL_TRUE);
   glDepthFunc(GL_LESS);
+
+  this->defaultFont.init();
 }
 
 RenderTarget * RenderManager::getBackBuffer() {
diff --git a/src/dawnopengl/display/RenderManager.hpp b/src/dawnopengl/display/RenderManager.hpp
index 48ba524a..a312a047 100644
--- a/src/dawnopengl/display/RenderManager.hpp
+++ b/src/dawnopengl/display/RenderManager.hpp
@@ -9,6 +9,7 @@
 #include "display/shader/SimpleTexturedShader.hpp"
 #include "display/shader/UIShaderProgram.hpp"
 #include "display/RenderPipeline.hpp"
+#include "display/font/ExampleFont.hpp"
 
 namespace Dawn {
   class RenderManager : public IRenderManager {
@@ -19,6 +20,7 @@ namespace Dawn {
       BackBufferRenderTarget backBuffer;
       SimpleTexturedShader simpleShader;
       UIShaderProgram uiShaderProgram;
+      ExampleFont defaultFont;
 
       /**
        * Construct a new RenderManager for a game instance.