From d2ae4df90d430bb635c7bcc83723a6ee86a81376 Mon Sep 17 00:00:00 2001
From: Ben Wagner <bungeman@google.com>
Date: Thu, 7 Jun 2018 17:54:07 -0400
Subject: [PATCH] Add text size override to Viewer.

In some cases issues only happen when the actual requested text size on
a paint is a particular size. Allow overriding the text size on the
paint for such testing.

Change-Id: Ic719ea36ba9d624725d443cbd563283628606f2d
Reviewed-on: https://skia-review.googlesource.com/133446
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
---
 tools/viewer/Viewer.cpp | 19 +++++++++++++++++++
 tools/viewer/Viewer.h   |  1 +
 2 files changed, 20 insertions(+)

diff --git a/tools/viewer/Viewer.cpp b/tools/viewer/Viewer.cpp
index 2357a18bb5..65280bc4af 100644
--- a/tools/viewer/Viewer.cpp
+++ b/tools/viewer/Viewer.cpp
@@ -1018,6 +1018,9 @@ public:
         if (*paint == nullptr) {
             return true;
         }
+        if (fPaintOverrides->fTextSize) {
+            paint->writable()->setTextSize(fPaint->getTextSize());
+        }
         if (fPaintOverrides->fHinting) {
             paint->writable()->setHinting(fPaint->getHinting());
         }
@@ -1651,6 +1654,22 @@ void Viewer::drawImGui() {
                           "Default\0No Vertical Text\0Vertical Text\0\0",
                           SkPaint::kVerticalText_Flag,
                           &SkPaint::isVerticalText, &SkPaint::setVerticalText);
+
+                ImGui::Checkbox("Override TextSize", &fPaintOverrides.fTextSize);
+                if (fPaintOverrides.fTextSize) {
+                    ImGui::DragFloat2("TextRange", fPaintOverrides.fTextSizeRange,
+                                      0.001f, -10.0f, 300.0f, "%.6f", 2.0f);
+                    float textSize = fPaint.getTextSize();
+                    if (ImGui::DragFloat("TextSize", &textSize, 0.001f,
+                                         fPaintOverrides.fTextSizeRange[0],
+                                         fPaintOverrides.fTextSizeRange[1],
+                                         "%.6f", 2.0f))
+                    {
+                        fPaint.setTextSize(textSize);
+                        this->preTouchMatrixChanged();
+                        paramsChanged = true;
+                    }
+                }
             }
 
             {
diff --git a/tools/viewer/Viewer.h b/tools/viewer/Viewer.h
index d843946ab1..78feabeef2 100644
--- a/tools/viewer/Viewer.h
+++ b/tools/viewer/Viewer.h
@@ -48,6 +48,7 @@ public:
         bool fImageFilter = false;
 
         bool fTextSize = false;
+        SkScalar fTextSizeRange[2] = { 0, 20 };
         bool fTextScaleX = false;
         bool fTextSkewX = false;
         bool fColor = false;