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authorRyan Harrison <rharrison@chromium.org>2017-08-01 15:16:59 -0400
committerChromium commit bot <commit-bot@chromium.org>2017-08-01 19:35:49 +0000
commitda129ab38c3fb6ed3de85ffb6f8938eb31130a53 (patch)
tree1ed3980d91ae9258f917124d69f0276260e34b71 /core/fxge/win32
parentde7c9620c37486413e1f7db4567b4b0cea6a857f (diff)
downloadpdfium-da129ab38c3fb6ed3de85ffb6f8938eb31130a53.tar.xz
Replace raw value for constant error value in string operations
Currently Find() and other methods that return a FX_STRSIZE return -1 to indicate error/failure. This means that there is a lot of magic numbers and magic checks floating around. The standard library for similar operations uses a npos constant. This CL implements FX_STRNPOS, and replaces usages of magic number checking. It also does some type cleanup along the way where it was obvious that FX_STRSIZE should be being used. Removing the magic numbers should make eventually changing FX_STRSIZE to be unsigned easier in the future. BUG=pdfium:828 Change-Id: I67e481e44cf2f75a1698afa8fbee4f375a74c490 Reviewed-on: https://pdfium-review.googlesource.com/9651 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
Diffstat (limited to 'core/fxge/win32')
-rw-r--r--core/fxge/win32/fx_win32_device.cpp33
1 files changed, 19 insertions, 14 deletions
diff --git a/core/fxge/win32/fx_win32_device.cpp b/core/fxge/win32/fx_win32_device.cpp
index 4427755cf5..b707a76c08 100644
--- a/core/fxge/win32/fx_win32_device.cpp
+++ b/core/fxge/win32/fx_win32_device.cpp
@@ -503,7 +503,7 @@ void* CFX_Win32FallbackFontInfo::MapFont(int weight,
void CFX_Win32FontInfo::GetGBPreference(CFX_ByteString& face,
int weight,
int picth_family) {
- if (face.Find("KaiTi") >= 0 || face.Find("\xbf\xac") >= 0) {
+ if (face.Find("KaiTi") != FX_STRNPOS || face.Find("\xbf\xac") != FX_STRNPOS) {
if (m_KaiTi.IsEmpty()) {
m_KaiTi = FindFont("KaiTi");
if (m_KaiTi.IsEmpty()) {
@@ -511,7 +511,8 @@ void CFX_Win32FontInfo::GetGBPreference(CFX_ByteString& face,
}
}
face = m_KaiTi;
- } else if (face.Find("FangSong") >= 0 || face.Find("\xb7\xc2\xcb\xce") >= 0) {
+ } else if (face.Find("FangSong") != FX_STRNPOS ||
+ face.Find("\xb7\xc2\xcb\xce") != FX_STRNPOS) {
if (m_FangSong.IsEmpty()) {
m_FangSong = FindFont("FangSong");
if (m_FangSong.IsEmpty()) {
@@ -519,9 +520,11 @@ void CFX_Win32FontInfo::GetGBPreference(CFX_ByteString& face,
}
}
face = m_FangSong;
- } else if (face.Find("SimSun") >= 0 || face.Find("\xcb\xce") >= 0) {
+ } else if (face.Find("SimSun") != FX_STRNPOS ||
+ face.Find("\xcb\xce") != FX_STRNPOS) {
face = "SimSun";
- } else if (face.Find("SimHei") >= 0 || face.Find("\xba\xda") >= 0) {
+ } else if (face.Find("SimHei") != FX_STRNPOS ||
+ face.Find("\xba\xda") != FX_STRNPOS) {
face = "SimHei";
} else if (!(picth_family & FF_ROMAN) && weight > 550) {
face = "SimHei";
@@ -533,15 +536,16 @@ void CFX_Win32FontInfo::GetGBPreference(CFX_ByteString& face,
void CFX_Win32FontInfo::GetJapanesePreference(CFX_ByteString& face,
int weight,
int picth_family) {
- if (face.Find("Gothic") >= 0 ||
- face.Find("\x83\x53\x83\x56\x83\x62\x83\x4e") >= 0) {
- if (face.Find("PGothic") >= 0 ||
- face.Find("\x82\x6f\x83\x53\x83\x56\x83\x62\x83\x4e") >= 0) {
+ if (face.Find("Gothic") != FX_STRNPOS ||
+ face.Find("\x83\x53\x83\x56\x83\x62\x83\x4e") != FX_STRNPOS) {
+ if (face.Find("PGothic") != FX_STRNPOS ||
+ face.Find("\x82\x6f\x83\x53\x83\x56\x83\x62\x83\x4e") != FX_STRNPOS) {
face = "MS PGothic";
- } else if (face.Find("UI Gothic") >= 0) {
+ } else if (face.Find("UI Gothic") != FX_STRNPOS) {
face = "MS UI Gothic";
} else {
- if (face.Find("HGSGothicM") >= 0 || face.Find("HGMaruGothicMPRO") >= 0) {
+ if (face.Find("HGSGothicM") != FX_STRNPOS ||
+ face.Find("HGMaruGothicMPRO") != FX_STRNPOS) {
face = "MS PGothic";
} else {
face = "MS Gothic";
@@ -549,9 +553,10 @@ void CFX_Win32FontInfo::GetJapanesePreference(CFX_ByteString& face,
}
return;
}
- if (face.Find("Mincho") >= 0 || face.Find("\x96\xbe\x92\xa9") >= 0) {
- if (face.Find("PMincho") >= 0 ||
- face.Find("\x82\x6f\x96\xbe\x92\xa9") >= 0) {
+ if (face.Find("Mincho") != FX_STRNPOS ||
+ face.Find("\x96\xbe\x92\xa9") != FX_STRNPOS) {
+ if (face.Find("PMincho") != FX_STRNPOS ||
+ face.Find("\x82\x6f\x96\xbe\x92\xa9") != FX_STRNPOS) {
face = "MS PMincho";
} else {
face = "MS Mincho";
@@ -635,7 +640,7 @@ void* CFX_Win32FontInfo::MapFont(int weight,
face = "Gulim";
break;
case FX_CHARSET_ChineseTraditional:
- if (face.Find("MSung") >= 0) {
+ if (face.Find("MSung") != FX_STRNPOS) {
face = "MingLiU";
} else {
face = "PMingLiU";