From 7351020a582d70a1495249fba87d342c8a1fb634 Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Wed, 10 Apr 2019 19:42:46 +0800
Subject: Refactor.

---
 include/cru/platform/graph/brush.hpp         | 13 +++++++++++++
 include/cru/platform/graph/font.hpp          |  8 ++++++++
 include/cru/platform/graph/geometry.hpp      | 25 +++++++++++++++++++++++++
 include/cru/platform/graph/graph_factory.hpp | 26 ++++++++++++++++++++++++++
 include/cru/platform/graph/painter.hpp       | 26 ++++++++++++++++++++++++++
 include/cru/platform/graph/painter_util.hpp  | 18 ++++++++++++++++++
 include/cru/platform/graph/text_layout.hpp   | 24 ++++++++++++++++++++++++
 7 files changed, 140 insertions(+)
 create mode 100644 include/cru/platform/graph/brush.hpp
 create mode 100644 include/cru/platform/graph/font.hpp
 create mode 100644 include/cru/platform/graph/geometry.hpp
 create mode 100644 include/cru/platform/graph/graph_factory.hpp
 create mode 100644 include/cru/platform/graph/painter.hpp
 create mode 100644 include/cru/platform/graph/painter_util.hpp
 create mode 100644 include/cru/platform/graph/text_layout.hpp

(limited to 'include/cru/platform/graph')

diff --git a/include/cru/platform/graph/brush.hpp b/include/cru/platform/graph/brush.hpp
new file mode 100644
index 00000000..8ffbfc97
--- /dev/null
+++ b/include/cru/platform/graph/brush.hpp
@@ -0,0 +1,13 @@
+#pragma once
+#include "cru/common/base.hpp"
+
+#include "cru/common/ui_base.hpp"
+
+namespace cru::platform::graph {
+struct Brush : public virtual Interface {};
+
+struct SolidColorBrush : public virtual Brush {
+  virtual ui::Color GetColor() = 0;
+  virtual void SetColor(const ui::Color& color) = 0;
+};
+}  // namespace cru::platform
diff --git a/include/cru/platform/graph/font.hpp b/include/cru/platform/graph/font.hpp
new file mode 100644
index 00000000..5af369e5
--- /dev/null
+++ b/include/cru/platform/graph/font.hpp
@@ -0,0 +1,8 @@
+#pragma once
+#include "cru/common/base.hpp"
+
+namespace cru::platform::graph {
+struct FontDescriptor : virtual Interface {
+
+};
+}
diff --git a/include/cru/platform/graph/geometry.hpp b/include/cru/platform/graph/geometry.hpp
new file mode 100644
index 00000000..7a7ad8b2
--- /dev/null
+++ b/include/cru/platform/graph/geometry.hpp
@@ -0,0 +1,25 @@
+#pragma once
+#include "cru/common/base.hpp"
+
+#include "cru/common/ui_base.hpp"
+
+namespace cru::platform::graph {
+struct Geometry : virtual Interface {
+  virtual bool FillContains(const ui::Point& point) = 0;
+};
+
+struct GeometryBuilder : virtual Interface {
+  virtual bool IsValid() = 0;
+  virtual void BeginFigure(const ui::Point& point) = 0;
+  virtual void LineTo(const ui::Point& point) = 0;
+  virtual void QuadraticBezierTo(const ui::Point& control_point,
+                                 const ui::Point& end_point) = 0;
+  virtual void CloseFigure(bool close) = 0;
+  virtual Geometry* Build() = 0;
+
+  Geometry* BuildAndDeleteThis() {
+    Build();
+    delete this;
+  }
+};
+}  // namespace cru::platform
diff --git a/include/cru/platform/graph/graph_factory.hpp b/include/cru/platform/graph/graph_factory.hpp
new file mode 100644
index 00000000..51cf6f15
--- /dev/null
+++ b/include/cru/platform/graph/graph_factory.hpp
@@ -0,0 +1,26 @@
+#pragma once
+#include "cru/common/base.hpp"
+
+#include "cru/common/ui_base.hpp"
+
+#include <memory>
+#include <string>
+#include <string_view>
+
+namespace cru::platform::graph {
+struct SolidColorBrush;
+struct GeometryBuilder;
+struct FontDescriptor;
+struct TextLayout;
+
+struct GraphFactory : virtual Interface {
+  static GraphFactory* GetInstance();
+
+  virtual SolidColorBrush* CreateSolidColorBrush(const ui::Color& color) = 0;
+  virtual GeometryBuilder* CreateGeometryBuilder() = 0;
+  virtual FontDescriptor* CreateFontDescriptor(
+      const std::wstring_view& font_family, float font_size) = 0;
+  virtual TextLayout* CreateTextLayout(std::shared_ptr<FontDescriptor> font,
+                                       std::wstring text) = 0;
+};
+}  // namespace cru::platform
diff --git a/include/cru/platform/graph/painter.hpp b/include/cru/platform/graph/painter.hpp
new file mode 100644
index 00000000..199ebbad
--- /dev/null
+++ b/include/cru/platform/graph/painter.hpp
@@ -0,0 +1,26 @@
+#pragma once
+#include "cru/common/base.hpp"
+
+#include "cru/common/ui_base.hpp"
+#include "../matrix.hpp"
+
+namespace cru::platform::graph {
+struct Brush;
+struct Geometry;
+struct TextLayout;
+
+struct Painter : virtual Interface {
+  virtual Matrix GetTransform() = 0;
+  virtual void SetTransform(const Matrix& matrix) = 0;
+  virtual void Clear(const ui::Color& color) = 0;
+  virtual void StrokeRectangle(const ui::Rect& rectangle, Brush* brush,
+                               float width) = 0;
+  virtual void FillRectangle(const ui::Rect& rectangle, Brush* brush) = 0;
+  virtual void StrokeGeometry(Geometry* geometry, Brush* brush,
+                              float width) = 0;
+  virtual void FillGeometry(Geometry* geometry, Brush* brush) = 0;
+  virtual void DrawText(const ui::Point& offset, TextLayout* text_layout, Brush* brush) = 0;
+  virtual void EndDraw() = 0;
+  virtual bool IsDisposed() = 0;
+};
+}  // namespace cru::platform
diff --git a/include/cru/platform/graph/painter_util.hpp b/include/cru/platform/graph/painter_util.hpp
new file mode 100644
index 00000000..c137e8cb
--- /dev/null
+++ b/include/cru/platform/graph/painter_util.hpp
@@ -0,0 +1,18 @@
+#pragma once
+#include "painter.hpp"
+
+#include <functional>
+#include <type_traits>
+
+namespace cru::platform::graph::util {
+template <typename Fn>
+inline void WithTransform(Painter* painter, const Matrix& matrix,
+                          const Fn& action) {
+  static_assert(std::is_invocable_v<decltype(action), Painter*>,
+                "Action must can be be invoked with painter.");
+  const auto old = painter->GetTransform();
+  painter->SetTransform(old * matrix);
+  action(painter);
+  painter->SetTransform(old);
+}
+}  // namespace cru::platform::util
diff --git a/include/cru/platform/graph/text_layout.hpp b/include/cru/platform/graph/text_layout.hpp
new file mode 100644
index 00000000..eb13c115
--- /dev/null
+++ b/include/cru/platform/graph/text_layout.hpp
@@ -0,0 +1,24 @@
+#pragma once
+#include "cru/common/base.hpp"
+
+#include "cru/common/ui_base.hpp"
+
+#include <memory>
+#include <string>
+#include <vector>
+
+namespace cru::platform::graph {
+struct FontDescriptor;
+
+struct TextLayout : virtual Interface {
+  virtual std::wstring GetText() = 0;
+  virtual void SetText(std::wstring new_text) = 0;
+  virtual std::shared_ptr<FontDescriptor> GetFont() = 0;
+  virtual void SetFont(std::shared_ptr<FontDescriptor> font) = 0;
+  virtual void SetMaxWidth(float max_width) = 0;
+  virtual void SetMaxHeight(float max_height) = 0;
+  virtual ui::Rect GetTextBounds() = 0;
+  virtual std::vector<ui::Rect> TextRangeRect(
+      const ui::TextRange& text_range) = 0;
+};
+}  // namespace cru::platform
-- 
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