From 349988e5dd0c1e22966ba19f5af87dc46960dda3 Mon Sep 17 00:00:00 2001
From: Birunthan Mohanathas <birunthan@mohanathas.com>
Date: Fri, 29 Mar 2013 13:33:11 +0200
Subject: [PATCH] Gfx: Add GDI+ specific temporary solution for transformations

---
 Common/Gfx/Canvas.h       |  6 ++++++
 Common/Gfx/CanvasGDIP.cpp | 20 ++++++++++++++++++++
 Common/Gfx/CanvasGDIP.h   |  5 +++++
 Library/MeterString.cpp   | 10 ++++------
 Library/MeterWindow.cpp   |  8 ++------
 5 files changed, 37 insertions(+), 12 deletions(-)

diff --git a/Common/Gfx/Canvas.h b/Common/Gfx/Canvas.h
index 262179e7..66755c5f 100644
--- a/Common/Gfx/Canvas.h
+++ b/Common/Gfx/Canvas.h
@@ -57,6 +57,12 @@ public:
 
 	virtual bool IsTransparentPixel(int x, int y) = 0;
 
+	// TODO: Implement proper solution.
+	virtual void SetTransform(const Gdiplus::Matrix& matrix) {}
+	virtual void ResetTransform() {}
+	virtual void RotateTransform(float angle) {}
+	virtual void TranslateTransform(float dx, float dy) {}
+
 	virtual void SetAntiAliasing(bool enable) = 0;
 	virtual void SetTextAntiAliasing(bool enable) = 0;
 
diff --git a/Common/Gfx/CanvasGDIP.cpp b/Common/Gfx/CanvasGDIP.cpp
index e6c07d60..8e9a90cf 100644
--- a/Common/Gfx/CanvasGDIP.cpp
+++ b/Common/Gfx/CanvasGDIP.cpp
@@ -128,6 +128,26 @@ bool CanvasGDIP::IsTransparentPixel(int x, int y)
 	return false;
 }
 
+void CanvasGDIP::SetTransform(const Gdiplus::Matrix& matrix)
+{
+	m_Graphics->SetTransform(&matrix);
+}
+
+void CanvasGDIP::ResetTransform()
+{
+	m_Graphics->ResetTransform();
+}
+
+void CanvasGDIP::RotateTransform(float angle)
+{
+	m_Graphics->RotateTransform(angle);
+}
+
+void CanvasGDIP::TranslateTransform(float dx, float dy)
+{
+	m_Graphics->TranslateTransform(dx, dy);
+}
+
 void CanvasGDIP::SetAntiAliasing(bool enable)
 {
 	m_Graphics->SetSmoothingMode(
diff --git a/Common/Gfx/CanvasGDIP.h b/Common/Gfx/CanvasGDIP.h
index 6723f948..beff575c 100644
--- a/Common/Gfx/CanvasGDIP.h
+++ b/Common/Gfx/CanvasGDIP.h
@@ -48,6 +48,11 @@ public:
 
 	virtual bool IsTransparentPixel(int x, int y) override;
 
+	virtual void SetTransform(const Gdiplus::Matrix& matrix) override;
+	virtual void ResetTransform() override;
+	virtual void RotateTransform(float angle) override;
+	virtual void TranslateTransform(float dx, float dy) override;
+
 	virtual void SetAntiAliasing(bool enable) override;
 	virtual void SetTextAntiAliasing(bool enable) override;
 
diff --git a/Library/MeterString.cpp b/Library/MeterString.cpp
index efbe0bc8..8bd89e03 100644
--- a/Library/MeterString.cpp
+++ b/Library/MeterString.cpp
@@ -542,10 +542,9 @@ bool CMeterString::DrawString(Gfx::Canvas& canvas, RectF* rect)
 
 		if (m_Angle != 0.0f)
 		{
-			// TODO FIXME
-			//graphics.TranslateTransform((Gdiplus::REAL)CMeter::GetX(), y);
-			//graphics.RotateTransform(CONVERT_TO_DEGREES(m_Angle));
-			//graphics.TranslateTransform(-(Gdiplus::REAL)CMeter::GetX(), -y);
+			canvas.TranslateTransform((Gdiplus::REAL)CMeter::GetX(), y);
+			canvas.RotateTransform(CONVERT_TO_DEGREES(m_Angle));
+			canvas.TranslateTransform(-(Gdiplus::REAL)CMeter::GetX(), -y);
 		}
 
 		if (m_Effect != EFFECT_NONE)
@@ -576,8 +575,7 @@ bool CMeterString::DrawString(Gfx::Canvas& canvas, RectF* rect)
 
 		if (m_Angle != 0.0f)
 		{
-			// TODO FIXME
-			//graphics.ResetTransform();
+			canvas.ResetTransform();
 		}
 	}
 
diff --git a/Library/MeterWindow.cpp b/Library/MeterWindow.cpp
index bad036c0..3d481c2c 100644
--- a/Library/MeterWindow.cpp
+++ b/Library/MeterWindow.cpp
@@ -2527,13 +2527,9 @@ void CMeterWindow::Redraw()
 			const Matrix* matrix = (*j)->GetTransformationMatrix();
 			if (matrix && !matrix->IsIdentity())
 			{
-				// TODO FIXME: Change the world matrix
-				//m_Canvas->GetGraphics().SetTransform(matrix);
-
+				m_Canvas->SetTransform(*matrix);
 				(*j)->Draw(*m_Canvas);
-
-				// TODO FIXME: Set back to identity matrix
-				//m_Canvas->GetGraphics().ResetTransform();
+				m_Canvas->ResetTransform();
 			}
 			else
 			{