Convert CPSOutput to an IFX_WriteStream

This Cl updates CPSOutput to inherit from IFX_WriteStream and converts
the CFX_PSRenderer to accept an IFX_WriteStream instead of a CPSOutput.

Change-Id: Ibde5c7da1c2f6df0a10cb6e9a470e18fbab167b8
Reviewed-on: https://pdfium-review.googlesource.com/5431
Reviewed-by: Nicolás Peña <npm@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>

1 files changed, 9 insertions, 13 deletions

diff --git a/core/fxge/win32/cpsoutput.cpp b/core/fxge/win32/cpsoutput.cpp
index 7a8434ec33..7139340a6e 100644
--- a/core/fxge/win32/cpsoutput.cpp
+++ b/core/fxge/win32/cpsoutput.cpp
@@ -10,26 +10,17 @@
 
 #include "core/fxcrt/fx_system.h"
 
-CPSOutput::CPSOutput(HDC hDC) {
-  m_hDC = hDC;
-}
+CPSOutput::CPSOutput(HDC hDC) : m_hDC(hDC) {}
 
 CPSOutput::~CPSOutput() {}
 
-void CPSOutput::Release() {
-  delete this;
-}
-
-void CPSOutput::OutputPS(const char* str, int len) {
-  if (len < 0)
-    len = static_cast<int>(FXSYS_strlen(str));
-
+bool CPSOutput::WriteBlock(const void* str, size_t len) {
   int sent_len = 0;
   while (len > 0) {
     char buffer[1026];
-    int send_len = std::min(len, 1024);
+    size_t send_len = std::min(len, static_cast<size_t>(1024));
     *(reinterpret_cast<uint16_t*>(buffer)) = send_len;
-    memcpy(buffer + 2, str + sent_len, send_len);
+    memcpy(buffer + 2, static_cast<const char*>(str) + sent_len, send_len);
 
     // TODO(thestig/rbpotter): Do PASSTHROUGH for non-Chromium usage.
     // ExtEscape(m_hDC, PASSTHROUGH, send_len + 2, buffer, 0, nullptr);
@@ -37,4 +28,9 @@ void CPSOutput::OutputPS(const char* str, int len) {
     sent_len += send_len;
     len -= send_len;
   }
+  return true;
+}
+
+bool CPSOutput::WriteString(const CFX_ByteStringC& str) {
+  return WriteBlock(str.c_str(), str.GetLength());
 }