Change FXTEXT_CHARPOS to use CFX_PointF

This CL updates the Origin x,y coordinates in FXTEXT_CHARPOS to be an
CFX_PointF.

Change-Id: I67281db2cb82687e12490145f7c99aee908e5fa8
Reviewed-on: https://pdfium-review.googlesource.com/2718
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Nicolás Peña <npm@chromium.org>

12 files changed, 61 insertions, 39 deletions

diff --git a/core/fpdfapi/render/cpdf_charposlist.cpp b/core/fpdfapi/render/cpdf_charposlist.cpp
index 64176fb054..639bdcf17b 100644
--- a/core/fpdfapi/render/cpdf_charposlist.cpp
+++ b/core/fpdfapi/render/cpdf_charposlist.cpp
@@ -32,10 +32,12 @@ void CPDF_CharPosList::Load(const std::vector<uint32_t>& charCodes,
     uint32_t CharCode = charCodes[iChar];
     if (CharCode == static_cast<uint32_t>(-1))
       continue;
+
     bool bVert = false;
     FXTEXT_CHARPOS& charpos = m_pCharPos[m_nChars++];
     if (pCIDFont)
       charpos.m_bFontStyle = true;
+
     charpos.m_GlyphIndex = pFont->GlyphFromCharCode(CharCode, &bVert);
     if (charpos.m_GlyphIndex != static_cast<uint32_t>(-1)) {
       charpos.m_FallbackFontPosition = -1;
@@ -45,39 +47,41 @@ void CPDF_CharPosList::Load(const std::vector<uint32_t>& charCodes,
       charpos.m_GlyphIndex = pFont->FallbackGlyphFromCharcode(
           charpos.m_FallbackFontPosition, CharCode);
     }
+
 // TODO(npm): Figure out how this affects m_ExtGID
 #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
     charpos.m_ExtGID = pFont->GlyphFromCharCodeExt(CharCode);
 #endif
-    if (!pFont->IsEmbedded() && !pFont->IsCIDFont()) {
+    if (!pFont->IsEmbedded() && !pFont->IsCIDFont())
       charpos.m_FontCharWidth = pFont->GetCharWidthF(CharCode);
-    } else {
+    else
       charpos.m_FontCharWidth = 0;
-    }
-    charpos.m_OriginX = iChar ? charPos[iChar - 1] : 0;
-    charpos.m_OriginY = 0;
+
+    charpos.m_Origin = CFX_PointF(iChar ? charPos[iChar - 1] : 0, 0);
     charpos.m_bGlyphAdjust = false;
-    if (!pCIDFont) {
+    if (!pCIDFont)
       continue;
-    }
+
     uint16_t CID = pCIDFont->CIDFromCharCode(CharCode);
     if (bVertWriting) {
-      charpos.m_OriginY = charpos.m_OriginX;
-      charpos.m_OriginX = 0;
-      short vx, vy;
+      charpos.m_Origin = CFX_PointF(0, charpos.m_Origin.x);
+
+      short vx;
+      short vy;
       pCIDFont->GetVertOrigin(CID, vx, vy);
-      charpos.m_OriginX -= FontSize * vx / 1000;
-      charpos.m_OriginY -= FontSize * vy / 1000;
+      charpos.m_Origin.x -= FontSize * vx / 1000;
+      charpos.m_Origin.y -= FontSize * vy / 1000;
     }
+
     const uint8_t* pTransform = pCIDFont->GetCIDTransform(CID);
     if (pTransform && !bVert) {
       charpos.m_AdjustMatrix[0] = pCIDFont->CIDTransformToFloat(pTransform[0]);
       charpos.m_AdjustMatrix[2] = pCIDFont->CIDTransformToFloat(pTransform[2]);
       charpos.m_AdjustMatrix[1] = pCIDFont->CIDTransformToFloat(pTransform[1]);
       charpos.m_AdjustMatrix[3] = pCIDFont->CIDTransformToFloat(pTransform[3]);
-      charpos.m_OriginX +=
+      charpos.m_Origin.x +=
           pCIDFont->CIDTransformToFloat(pTransform[4]) * FontSize;
-      charpos.m_OriginY +=
+      charpos.m_Origin.y +=
           pCIDFont->CIDTransformToFloat(pTransform[5]) * FontSize;
       charpos.m_bGlyphAdjust = true;
     }
diff --git a/core/fpdfapi/render/cpdf_renderstatus.cpp b/core/fpdfapi/render/cpdf_renderstatus.cpp
index 60b57600c2..fd44d42484 100644
--- a/core/fpdfapi/render/cpdf_renderstatus.cpp
+++ b/core/fpdfapi/render/cpdf_renderstatus.cpp
@@ -2001,8 +2001,8 @@ void CPDF_RenderStatus::DrawTextPathWithPattern(const CPDF_TextObject* textobj,
                           charpos.m_AdjustMatrix[2], charpos.m_AdjustMatrix[3],
                           0, 0);
     }
-    matrix.Concat(CFX_Matrix(font_size, 0, 0, font_size, charpos.m_OriginX,
-                             charpos.m_OriginY));
+    matrix.Concat(CFX_Matrix(font_size, 0, 0, font_size, charpos.m_Origin.x,
+                             charpos.m_Origin.y));
     path.m_Path.Append(pPath, &matrix);
     path.m_Matrix = *pTextMatrix;
     path.m_bStroke = bStroke;
diff --git a/core/fxge/apple/fx_apple_platform.cpp b/core/fxge/apple/fx_apple_platform.cpp
index d6867384e6..f576eb0ba2 100644
--- a/core/fxge/apple/fx_apple_platform.cpp
+++ b/core/fxge/apple/fx_apple_platform.cpp
@@ -39,9 +39,7 @@ bool CGDrawGlyphRun(CGContextRef pContext,
   if (bNegSize)
     font_size = -font_size;
 
-  FX_FLOAT ori_x = pCharPos[0].m_OriginX, ori_y = pCharPos[0].m_OriginY;
   CFX_Matrix new_matrix;
-  new_matrix.TransformPoint(ori_x, ori_y);
   if (pObject2Device)
     new_matrix.Concat(*pObject2Device);
 
@@ -63,10 +61,10 @@ bool CGDrawGlyphRun(CGContextRef pContext,
     glyph_indices[i] =
         pCharPos[i].m_ExtGID ? pCharPos[i].m_ExtGID : pCharPos[i].m_GlyphIndex;
     if (bNegSize)
-      glyph_positions[i].x = -pCharPos[i].m_OriginX;
+      glyph_positions[i].x = -pCharPos[i].m_Origin.x;
     else
-      glyph_positions[i].x = pCharPos[i].m_OriginX;
-    glyph_positions[i].y = pCharPos[i].m_OriginY;
+      glyph_positions[i].x = pCharPos[i].m_Origin.x;
+    glyph_positions[i].y = pCharPos[i].m_Origin.y;
   }
   if (bNegSize) {
     new_matrix.a = -new_matrix.a;
diff --git a/core/fxge/cfx_renderdevice.h b/core/fxge/cfx_renderdevice.h
index 2144206e19..2e9abf9963 100644
--- a/core/fxge/cfx_renderdevice.h
+++ b/core/fxge/cfx_renderdevice.h
@@ -62,10 +62,14 @@ class IFX_RenderDeviceDriver;
 
 enum class FXPT_TYPE : uint8_t { LineTo, BezierTo, MoveTo };
 
-struct FXTEXT_CHARPOS {
+class FXTEXT_CHARPOS {
+ public:
+  FXTEXT_CHARPOS();
+  FXTEXT_CHARPOS(const FXTEXT_CHARPOS&);
+  ~FXTEXT_CHARPOS();
+
   FX_FLOAT m_AdjustMatrix[4];
-  FX_FLOAT m_OriginX;
-  FX_FLOAT m_OriginY;
+  CFX_PointF m_Origin;
   uint32_t m_GlyphIndex;
   int32_t m_FontCharWidth;
 #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
diff --git a/core/fxge/ge/cfx_renderdevice.cpp b/core/fxge/ge/cfx_renderdevice.cpp
index d2c677ecc2..f2bf48912c 100644
--- a/core/fxge/ge/cfx_renderdevice.cpp
+++ b/core/fxge/ge/cfx_renderdevice.cpp
@@ -346,6 +346,21 @@ bool ShouldDrawDeviceText(const CFX_Font* pFont, uint32_t text_flags) {
 
 }  // namespace
 
+FXTEXT_CHARPOS::FXTEXT_CHARPOS()
+    : m_GlyphIndex(0),
+      m_FontCharWidth(0),
+#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
+      m_ExtGID(0),
+#endif
+      m_FallbackFontPosition(0),
+      m_bGlyphAdjust(false),
+      m_bFontStyle(false) {
+}
+
+FXTEXT_CHARPOS::FXTEXT_CHARPOS(const FXTEXT_CHARPOS&) = default;
+
+FXTEXT_CHARPOS::~FXTEXT_CHARPOS(){};
+
 CFX_RenderDevice::CFX_RenderDevice()
     : m_pBitmap(nullptr),
       m_Width(0),
@@ -912,8 +927,9 @@ bool CFX_RenderDevice::DrawNormalText(int nChars,
   for (size_t i = 0; i < glyphs.size(); ++i) {
     FXTEXT_GLYPHPOS& glyph = glyphs[i];
     const FXTEXT_CHARPOS& charpos = pCharPos[i];
-    glyph.m_fOriginX = charpos.m_OriginX;
-    glyph.m_fOriginY = charpos.m_OriginY;
+    glyph.m_fOriginX = charpos.m_Origin.x;
+    glyph.m_fOriginY = charpos.m_Origin.y;
+
     text2Device.TransformPoint(glyph.m_fOriginX, glyph.m_fOriginY);
     if (anti_alias < FXFT_RENDER_MODE_LCD)
       glyph.m_OriginX = FXSYS_round(glyph.m_fOriginX);
@@ -1069,8 +1085,8 @@ bool CFX_RenderDevice::DrawTextPath(int nChars,
                           charpos.m_AdjustMatrix[2], charpos.m_AdjustMatrix[3],
                           0, 0);
     }
-    matrix.Concat(CFX_Matrix(font_size, 0, 0, font_size, charpos.m_OriginX,
-                             charpos.m_OriginY));
+    matrix.Concat(CFX_Matrix(font_size, 0, 0, font_size, charpos.m_Origin.x,
+                             charpos.m_Origin.y));
     const CFX_PathData* pPath =
         pFont->LoadGlyphPath(charpos.m_GlyphIndex, charpos.m_FontCharWidth);
     if (!pPath)
diff --git a/core/fxge/ifx_renderdevicedriver.h b/core/fxge/ifx_renderdevicedriver.h
index 6a5b63ba32..fd35149e42 100644
--- a/core/fxge/ifx_renderdevicedriver.h
+++ b/core/fxge/ifx_renderdevicedriver.h
@@ -16,8 +16,8 @@ class CFX_GraphStateData;
 class CFX_Matrix;
 class CFX_PathData;
 class CPDF_ShadingPattern;
+class FXTEXT_CHARPOS;
 class IFX_Pause;
-struct FXTEXT_CHARPOS;
 struct FX_RECT;
 
 class IFX_RenderDeviceDriver {
diff --git a/core/fxge/skia/fx_skia_device.cpp b/core/fxge/skia/fx_skia_device.cpp
index 8263cf66f5..431491d826 100644
--- a/core/fxge/skia/fx_skia_device.cpp
+++ b/core/fxge/skia/fx_skia_device.cpp
@@ -802,8 +802,9 @@ class SkiaState {
       vFlip *= -1;
     for (int index = 0; index < nChars; ++index) {
       const FXTEXT_CHARPOS& cp = pCharPos[index];
-      m_positions[index + count] = {cp.m_OriginX * flip, cp.m_OriginY * vFlip};
-      m_glyphs[index + count] = (uint16_t)cp.m_GlyphIndex;
+      m_positions[index + count] = {cp.m_Origin.x * flip,
+                                    cp.m_Origin.y * vFlip};
+      m_glyphs[index + count] = static_cast<uint16_t>(cp.m_GlyphIndex);
     }
     SkPoint delta;
     if (MatrixOffset(pMatrix, &delta)) {
@@ -1289,8 +1290,8 @@ bool CFX_SkiaDeviceDriver::DrawDeviceText(int nChars,
   glyphs.setCount(nChars);
   for (int index = 0; index < nChars; ++index) {
     const FXTEXT_CHARPOS& cp = pCharPos[index];
-    positions[index] = {cp.m_OriginX * flip, cp.m_OriginY * vFlip};
-    glyphs[index] = (uint16_t)cp.m_GlyphIndex;
+    positions[index] = {cp.m_Origin.x * flip, cp.m_Origin.y * vFlip};
+    glyphs[index] = static_cast<uint16_t>(cp.m_GlyphIndex);
   }
 #ifdef _SKIA_SUPPORT_PATHS_
   m_pBitmap->PreMultiply();
diff --git a/core/fxge/skia/fx_skia_device.h b/core/fxge/skia/fx_skia_device.h
index ff81daef46..ecb1104518 100644
--- a/core/fxge/skia/fx_skia_device.h
+++ b/core/fxge/skia/fx_skia_device.h
@@ -13,13 +13,13 @@
 #include "core/fxge/cfx_pathdata.h"
 #include "core/fxge/ifx_renderdevicedriver.h"
 
+class FXTEXT_CHARPOS;
 class SkCanvas;
 class SkMatrix;
 class SkPaint;
 class SkPath;
 class SkPictureRecorder;
 class SkiaState;
-struct FXTEXT_CHARPOS;
 struct SkIRect;
 
 class CFX_SkiaDeviceDriver : public IFX_RenderDeviceDriver {
diff --git a/core/fxge/skia/fx_skia_device_unittest.cpp b/core/fxge/skia/fx_skia_device_unittest.cpp
index 3b799e6190..afd47780d7 100644
--- a/core/fxge/skia/fx_skia_device_unittest.cpp
+++ b/core/fxge/skia/fx_skia_device_unittest.cpp
@@ -36,8 +36,7 @@ void EmptyTest(CFX_SkiaDeviceDriver* driver, const State&) {
 
 void CommonTest(CFX_SkiaDeviceDriver* driver, const State& state) {
   FXTEXT_CHARPOS charPos[1];
-  charPos[0].m_OriginX = 0;
-  charPos[0].m_OriginY = 1;
+  charPos[0].m_Origin = CFX_PointF(0, 1);
   charPos[0].m_GlyphIndex = 1;
   charPos[0].m_FontCharWidth = 4;
 
diff --git a/core/fxge/win32/cfx_psrenderer.cpp b/core/fxge/win32/cfx_psrenderer.cpp
index d5f1f4d91c..32da090ed6 100644
--- a/core/fxge/win32/cfx_psrenderer.cpp
+++ b/core/fxge/win32/cfx_psrenderer.cpp
@@ -662,7 +662,7 @@ bool CFX_PSRenderer::DrawText(int nChars,
       buf << "/X" << ps_fontnum << " Ff " << font_size << " Fs Sf ";
       last_fontnum = ps_fontnum;
     }
-    buf << pCharPos[i].m_OriginX << " " << pCharPos[i].m_OriginY << " m";
+    buf << pCharPos[i].m_Origin.x << " " << pCharPos[i].m_Origin.y << " m";
     CFX_ByteString hex;
     hex.Format("<%02X>", ps_glyphindex);
     buf << hex.AsStringC() << "Tj\n";
diff --git a/core/fxge/win32/cfx_psrenderer.h b/core/fxge/win32/cfx_psrenderer.h
index e941739f44..163c6180af 100644
--- a/core/fxge/win32/cfx_psrenderer.h
+++ b/core/fxge/win32/cfx_psrenderer.h
@@ -22,7 +22,7 @@ class CFX_FontCache;
 class CFX_Matrix;
 class CFX_PathData;
 class CPSFont;
-struct FXTEXT_CHARPOS;
+class FXTEXT_CHARPOS;
 
 class CFX_PSRenderer {
  public:
diff --git a/core/fxge/win32/win32_int.h b/core/fxge/win32/win32_int.h
index 974a1200e6..f8eae87308 100644
--- a/core/fxge/win32/win32_int.h
+++ b/core/fxge/win32/win32_int.h
@@ -17,7 +17,7 @@
 #include "core/fxge/win32/cpsoutput.h"
 #include "core/fxge/win32/dwrite_int.h"
 
-struct FXTEXT_CHARPOS;
+class FXTEXT_CHARPOS;
 struct WINDIB_Open_Args_;
 
 typedef HANDLE(__stdcall* FuncType_GdiAddFontMemResourceEx)(PVOID pbFont,