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Unified Diff: ui/views/controls/label_unittest.cc

Issue 867003002: Cache gfx::RenderText instances in views::Label. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: rebase Created 5 years, 9 months ago
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Index: ui/views/controls/label_unittest.cc
diff --git a/ui/views/controls/label_unittest.cc b/ui/views/controls/label_unittest.cc
index a0cb97ff1505db2de3327ef6c5e9ea997285aa54..193a3db34bc5f7dd13775fdcccaf1388c5427318 100644
--- a/ui/views/controls/label_unittest.cc
+++ b/ui/views/controls/label_unittest.cc
@@ -77,25 +77,41 @@ TEST_F(LabelTest, AlignmentProperty) {
// The alignment should be flipped in RTL UI.
label.SetHorizontalAlignment(gfx::ALIGN_RIGHT);
EXPECT_EQ(reverse_alignment ? gfx::ALIGN_LEFT : gfx::ALIGN_RIGHT,
- label.GetHorizontalAlignment());
+ label.horizontal_alignment());
label.SetHorizontalAlignment(gfx::ALIGN_LEFT);
EXPECT_EQ(reverse_alignment ? gfx::ALIGN_RIGHT : gfx::ALIGN_LEFT,
- label.GetHorizontalAlignment());
+ label.horizontal_alignment());
label.SetHorizontalAlignment(gfx::ALIGN_CENTER);
- EXPECT_EQ(gfx::ALIGN_CENTER, label.GetHorizontalAlignment());
+ EXPECT_EQ(gfx::ALIGN_CENTER, label.horizontal_alignment());
for (size_t j = 0; j < 2; ++j) {
label.SetHorizontalAlignment(gfx::ALIGN_TO_HEAD);
const bool rtl = j == 0;
label.SetText(rtl ? base::WideToUTF16(L"\x5d0") : ASCIIToUTF16("A"));
- EXPECT_EQ(rtl ? gfx::ALIGN_RIGHT : gfx::ALIGN_LEFT,
- label.GetHorizontalAlignment());
+ EXPECT_EQ(gfx::ALIGN_TO_HEAD, label.horizontal_alignment());
}
}
EXPECT_EQ(was_rtl, base::i18n::IsRTL());
}
+TEST_F(LabelTest, ElideBehavior) {
+ Label label;
+ base::string16 text(ASCIIToUTF16("This is example text."));
+ label.SetText(text);
+ EXPECT_EQ(gfx::ELIDE_TAIL, label.elide_behavior());
+ gfx::Size size = label.GetPreferredSize();
+ label.SetBoundsRect(gfx::Rect(size));
+ EXPECT_EQ(text, label.GetDisplayTextForTesting());
+
+ size.set_width(size.width() / 2);
+ label.SetBoundsRect(gfx::Rect(size));
+ EXPECT_GT(text.size(), label.GetDisplayTextForTesting().size());
+
+ label.SetElideBehavior(gfx::NO_ELIDE);
+ EXPECT_EQ(text, label.GetDisplayTextForTesting());
+}
+
TEST_F(LabelTest, MultiLineProperty) {
Label label;
EXPECT_FALSE(label.multi_line());
@@ -109,25 +125,29 @@ TEST_F(LabelTest, ObscuredProperty) {
Label label;
base::string16 test_text(ASCIIToUTF16("Password!"));
label.SetText(test_text);
+ label.SizeToPreferredSize();
// The text should be unobscured by default.
EXPECT_FALSE(label.obscured());
- EXPECT_EQ(test_text, label.GetLayoutTextForTesting());
+ EXPECT_EQ(test_text, label.GetDisplayTextForTesting());
EXPECT_EQ(test_text, label.text());
label.SetObscured(true);
+ label.SizeToPreferredSize();
EXPECT_TRUE(label.obscured());
- EXPECT_EQ(ASCIIToUTF16("*********"), label.GetLayoutTextForTesting());
+ EXPECT_EQ(ASCIIToUTF16("*********"), label.GetDisplayTextForTesting());
EXPECT_EQ(test_text, label.text());
label.SetText(test_text + test_text);
+ label.SizeToPreferredSize();
EXPECT_EQ(ASCIIToUTF16("******************"),
- label.GetLayoutTextForTesting());
+ label.GetDisplayTextForTesting());
EXPECT_EQ(test_text + test_text, label.text());
label.SetObscured(false);
+ label.SizeToPreferredSize();
EXPECT_FALSE(label.obscured());
- EXPECT_EQ(test_text + test_text, label.GetLayoutTextForTesting());
+ EXPECT_EQ(test_text + test_text, label.GetDisplayTextForTesting());
EXPECT_EQ(test_text + test_text, label.text());
}
@@ -137,9 +157,10 @@ TEST_F(LabelTest, ObscuredSurrogatePair) {
Label label;
base::string16 test_text = base::UTF8ToUTF16("\xF0\x9D\x84\x9E");
label.SetText(test_text);
+ label.SizeToPreferredSize();
label.SetObscured(true);
- EXPECT_EQ(ASCIIToUTF16("*"), label.GetLayoutTextForTesting());
+ EXPECT_EQ(ASCIIToUTF16("*"), label.GetDisplayTextForTesting());
EXPECT_EQ(test_text, label.text());
}
@@ -357,483 +378,38 @@ TEST_F(LabelTest, MultiLineSizing) {
required_size.width() + border.width());
}
-TEST_F(LabelTest, DrawSingleLineString) {
+// Verifies if the combination of text eliding and multiline doesn't cause
+// any side effects of size / layout calculation.
+TEST_F(LabelTest, MultiLineSizingWithElide) {
+ const base::string16 text =
+ ASCIIToUTF16("A random string\nwith multiple lines\nand returns!");
Label label;
label.SetFocusable(false);
-
- label.SetText(ASCIIToUTF16("Here's a string with no returns."));
- gfx::Size required_size(label.GetPreferredSize());
- gfx::Size extra(22, 8);
- label.SetBounds(0, 0, required_size.width() + extra.width(),
- required_size.height() + extra.height());
-
- // Do some basic verifications for all three alignments.
- // Centered text.
- const Label::DrawStringParams* params = label.CalculateDrawStringParams();
- EXPECT_EQ(label.text(), params->text);
- // The text should be centered horizontally and vertically.
- EXPECT_EQ(extra.width() / 2, params->bounds.x());
- EXPECT_EQ(0, params->bounds.y());
- EXPECT_EQ(required_size.width(), params->bounds.width());
- EXPECT_EQ(label.height(), params->bounds.height());
- EXPECT_EQ(gfx::Canvas::TEXT_ALIGN_CENTER,
- params->flags & (gfx::Canvas::TEXT_ALIGN_LEFT |
- gfx::Canvas::TEXT_ALIGN_CENTER |
- gfx::Canvas::TEXT_ALIGN_RIGHT));
-
- // Left aligned text.
- label.SetHorizontalAlignment(gfx::ALIGN_LEFT);
- label.ResetLayoutCache();
- params = label.CalculateDrawStringParams();
- EXPECT_EQ(label.text(), params->text);
- // The text should be left aligned horizontally and centered vertically.
- EXPECT_EQ(0, params->bounds.x());
- EXPECT_EQ(0, params->bounds.y());
- EXPECT_EQ(required_size.width(), params->bounds.width());
- EXPECT_EQ(label.height(), params->bounds.height());
- EXPECT_EQ(gfx::Canvas::TEXT_ALIGN_LEFT,
- params->flags & (gfx::Canvas::TEXT_ALIGN_LEFT |
- gfx::Canvas::TEXT_ALIGN_CENTER |
- gfx::Canvas::TEXT_ALIGN_RIGHT));
-
- // Right aligned text.
- label.SetHorizontalAlignment(gfx::ALIGN_RIGHT);
- label.ResetLayoutCache();
- params = label.CalculateDrawStringParams();
- EXPECT_EQ(label.text(), params->text);
- // The text should be right aligned horizontally and centered vertically.
- EXPECT_EQ(extra.width(), params->bounds.x());
- EXPECT_EQ(0, params->bounds.y());
- EXPECT_EQ(required_size.width(), params->bounds.width());
- EXPECT_EQ(label.height(), params->bounds.height());
- EXPECT_EQ(gfx::Canvas::TEXT_ALIGN_RIGHT,
- params->flags & (gfx::Canvas::TEXT_ALIGN_LEFT |
- gfx::Canvas::TEXT_ALIGN_CENTER |
- gfx::Canvas::TEXT_ALIGN_RIGHT));
-
- // Test single line drawing with a border.
- gfx::Insets border(39, 34, 8, 96);
- label.SetBorder(Border::CreateEmptyBorder(
- border.top(), border.left(), border.bottom(), border.right()));
-
- gfx::Size required_size_with_border(label.GetPreferredSize());
- EXPECT_EQ(required_size.width() + border.width(),
- required_size_with_border.width());
- EXPECT_EQ(required_size.height() + border.height(),
- required_size_with_border.height());
- label.SetBounds(0, 0, required_size_with_border.width() + extra.width(),
- required_size_with_border.height() + extra.height());
-
- // Centered text with border.
- label.SetHorizontalAlignment(gfx::ALIGN_CENTER);
- label.ResetLayoutCache();
- params = label.CalculateDrawStringParams();
- EXPECT_EQ(label.text(), params->text);
- // The text should be centered horizontally and vertically within the border.
- EXPECT_EQ(border.left() + extra.width() / 2, params->bounds.x());
- EXPECT_EQ(border.top(), params->bounds.y());
- EXPECT_EQ(required_size.width(), params->bounds.width());
- EXPECT_EQ(label.GetContentsBounds().height(), params->bounds.height());
- EXPECT_EQ(gfx::Canvas::TEXT_ALIGN_CENTER,
- params->flags & (gfx::Canvas::TEXT_ALIGN_LEFT |
- gfx::Canvas::TEXT_ALIGN_CENTER |
- gfx::Canvas::TEXT_ALIGN_RIGHT));
-
- // Left aligned text with border.
- label.SetHorizontalAlignment(gfx::ALIGN_LEFT);
- label.ResetLayoutCache();
- params = label.CalculateDrawStringParams();
- EXPECT_EQ(label.text(), params->text);
- // The text should be left aligned horizontally and centered vertically.
- EXPECT_EQ(border.left(), params->bounds.x());
- EXPECT_EQ(border.top(), params->bounds.y());
- EXPECT_EQ(required_size.width(), params->bounds.width());
- EXPECT_EQ(label.GetContentsBounds().height(), params->bounds.height());
- EXPECT_EQ(gfx::Canvas::TEXT_ALIGN_LEFT,
- params->flags & (gfx::Canvas::TEXT_ALIGN_LEFT |
- gfx::Canvas::TEXT_ALIGN_CENTER |
- gfx::Canvas::TEXT_ALIGN_RIGHT));
-
- // Right aligned text with border.
- label.SetHorizontalAlignment(gfx::ALIGN_RIGHT);
- label.ResetLayoutCache();
- params = label.CalculateDrawStringParams();
- EXPECT_EQ(label.text(), params->text);
- // The text should be right aligned horizontally and centered vertically.
- EXPECT_EQ(border.left() + extra.width(), params->bounds.x());
- EXPECT_EQ(border.top(), params->bounds.y());
- EXPECT_EQ(required_size.width(), params->bounds.width());
- EXPECT_EQ(label.GetContentsBounds().height(), params->bounds.height());
- EXPECT_EQ(gfx::Canvas::TEXT_ALIGN_RIGHT,
- params->flags & (gfx::Canvas::TEXT_ALIGN_LEFT |
- gfx::Canvas::TEXT_ALIGN_CENTER |
- gfx::Canvas::TEXT_ALIGN_RIGHT));
-}
-
-// Pango needs a max height to elide multiline text; that is not supported here.
-TEST_F(LabelTest, DrawMultiLineString) {
- Label label;
- label.SetFocusable(false);
- // Set a background color to prevent gfx::Canvas::NO_SUBPIXEL_RENDERING flags.
- label.SetBackgroundColor(SK_ColorWHITE);
-
- label.SetText(ASCIIToUTF16("Another string\nwith returns\n\n!"));
+ label.SetText(text);
label.SetMultiLine(true);
- label.SizeToFit(0);
- gfx::Size extra(50, 10);
- label.SetBounds(label.x(), label.y(),
- label.width() + extra.width(),
- label.height() + extra.height());
-
- // Do some basic verifications for all three alignments.
- const Label::DrawStringParams* params = label.CalculateDrawStringParams();
- EXPECT_EQ(label.text(), params->text);
- EXPECT_EQ(extra.width() / 2, params->bounds.x());
- EXPECT_EQ(extra.height() / 2, params->bounds.y());
- EXPECT_GT(params->bounds.width(), kMinTextDimension);
- EXPECT_GT(params->bounds.height(), kMinTextDimension);
- int expected_flags = gfx::Canvas::MULTI_LINE |
- gfx::Canvas::TEXT_ALIGN_CENTER;
-#if !defined(OS_WIN)
- expected_flags |= gfx::Canvas::NO_ELLIPSIS;
-#endif
- EXPECT_EQ(expected_flags, expected_flags);
- gfx::Rect center_bounds(params->bounds);
-
- label.SetHorizontalAlignment(gfx::ALIGN_LEFT);
- label.ResetLayoutCache();
- params = label.CalculateDrawStringParams();
- EXPECT_EQ(label.text(), params->text);
- EXPECT_EQ(0, params->bounds.x());
- EXPECT_EQ(extra.height() / 2, params->bounds.y());
- EXPECT_GT(params->bounds.width(), kMinTextDimension);
- EXPECT_GT(params->bounds.height(), kMinTextDimension);
- expected_flags = gfx::Canvas::MULTI_LINE |
- gfx::Canvas::TEXT_ALIGN_LEFT;
-#if !defined(OS_WIN)
- expected_flags |= gfx::Canvas::NO_ELLIPSIS;
-#endif
- EXPECT_EQ(expected_flags, expected_flags);
-
- label.SetHorizontalAlignment(gfx::ALIGN_RIGHT);
- label.ResetLayoutCache();
- params = label.CalculateDrawStringParams();
- EXPECT_EQ(label.text(), params->text);
- EXPECT_EQ(extra.width(), params->bounds.x());
- EXPECT_EQ(extra.height() / 2, params->bounds.y());
- EXPECT_GT(params->bounds.width(), kMinTextDimension);
- EXPECT_GT(params->bounds.height(), kMinTextDimension);
- expected_flags = gfx::Canvas::MULTI_LINE |
- gfx::Canvas::TEXT_ALIGN_RIGHT;
-#if !defined(OS_WIN)
- expected_flags |= gfx::Canvas::NO_ELLIPSIS;
-#endif
- EXPECT_EQ(expected_flags, expected_flags);
-
- // Test multiline drawing with a border.
- gfx::Insets border(19, 92, 23, 2);
- label.SetBorder(Border::CreateEmptyBorder(
- border.top(), border.left(), border.bottom(), border.right()));
- label.SizeToFit(0);
- label.SetBounds(label.x(), label.y(),
- label.width() + extra.width(),
- label.height() + extra.height());
-
- label.SetHorizontalAlignment(gfx::ALIGN_CENTER);
- label.ResetLayoutCache();
- params = label.CalculateDrawStringParams();
- EXPECT_EQ(label.text(), params->text);
- EXPECT_EQ(border.left() + extra.width() / 2, params->bounds.x());
- EXPECT_EQ(border.top() + extra.height() / 2, params->bounds.y());
- EXPECT_EQ(center_bounds.width(), params->bounds.width());
- EXPECT_EQ(center_bounds.height(), params->bounds.height());
- expected_flags = gfx::Canvas::MULTI_LINE |
- gfx::Canvas::TEXT_ALIGN_CENTER;
-#if !defined(OS_WIN)
- expected_flags |= gfx::Canvas::NO_ELLIPSIS;
-#endif
- EXPECT_EQ(expected_flags, expected_flags);
-
- label.SetHorizontalAlignment(gfx::ALIGN_LEFT);
- label.ResetLayoutCache();
- params = label.CalculateDrawStringParams();
- EXPECT_EQ(label.text(), params->text);
- EXPECT_EQ(border.left(), params->bounds.x());
- EXPECT_EQ(border.top() + extra.height() / 2, params->bounds.y());
- EXPECT_EQ(center_bounds.width(), params->bounds.width());
- EXPECT_EQ(center_bounds.height(), params->bounds.height());
- expected_flags = gfx::Canvas::MULTI_LINE |
- gfx::Canvas::TEXT_ALIGN_LEFT;
-#if !defined(OS_WIN)
- expected_flags |= gfx::Canvas::NO_ELLIPSIS;
-#endif
- EXPECT_EQ(expected_flags, expected_flags);
-
- label.SetHorizontalAlignment(gfx::ALIGN_RIGHT);
- label.ResetLayoutCache();
- params = label.CalculateDrawStringParams();
- EXPECT_EQ(label.text(), params->text);
- EXPECT_EQ(extra.width() + border.left(), params->bounds.x());
- EXPECT_EQ(border.top() + extra.height() / 2, params->bounds.y());
- EXPECT_EQ(center_bounds.width(), params->bounds.width());
- EXPECT_EQ(center_bounds.height(), params->bounds.height());
- expected_flags = gfx::Canvas::MULTI_LINE |
- gfx::Canvas::TEXT_ALIGN_RIGHT;
-#if !defined(OS_WIN)
- expected_flags |= gfx::Canvas::NO_ELLIPSIS;
-#endif
- EXPECT_EQ(expected_flags, expected_flags);
-}
-TEST_F(LabelTest, DrawSingleLineStringInRTL) {
- Label label;
- label.SetFocusable(false);
-
- std::string locale = l10n_util::GetApplicationLocale("");
- base::i18n::SetICUDefaultLocale("he");
-
- label.SetText(ASCIIToUTF16("Here's a string with no returns."));
- gfx::Size required_size(label.GetPreferredSize());
- gfx::Size extra(22, 8);
- label.SetBounds(0, 0, required_size.width() + extra.width(),
- required_size.height() + extra.height());
-
- // Do some basic verifications for all three alignments.
- // Centered text.
- const Label::DrawStringParams* params = label.CalculateDrawStringParams();
- EXPECT_EQ(label.text(), params->text);
- // The text should be centered horizontally and vertically.
- EXPECT_EQ(extra.width() / 2, params->bounds.x());
- EXPECT_EQ(0, params->bounds.y());
- EXPECT_EQ(required_size.width(), params->bounds.width());
- EXPECT_EQ(label.height(), params->bounds.height());
- EXPECT_EQ(gfx::Canvas::TEXT_ALIGN_CENTER,
- params->flags & (gfx::Canvas::TEXT_ALIGN_LEFT |
- gfx::Canvas::TEXT_ALIGN_CENTER |
- gfx::Canvas::TEXT_ALIGN_RIGHT));
-
- // ALIGN_LEFT label.
- label.SetHorizontalAlignment(gfx::ALIGN_LEFT);
- label.ResetLayoutCache();
- params = label.CalculateDrawStringParams();
- EXPECT_EQ(label.text(), params->text);
- // The text should be right aligned horizontally and centered vertically.
- EXPECT_EQ(extra.width(), params->bounds.x());
- EXPECT_EQ(0, params->bounds.y());
- EXPECT_EQ(required_size.width(), params->bounds.width());
- EXPECT_EQ(label.height(), params->bounds.height());
- EXPECT_EQ(gfx::Canvas::TEXT_ALIGN_RIGHT,
- params->flags & (gfx::Canvas::TEXT_ALIGN_LEFT |
- gfx::Canvas::TEXT_ALIGN_CENTER |
- gfx::Canvas::TEXT_ALIGN_RIGHT));
-
- // ALIGN_RIGHT label.
- label.SetHorizontalAlignment(gfx::ALIGN_RIGHT);
- label.ResetLayoutCache();
- params = label.CalculateDrawStringParams();
- EXPECT_EQ(label.text(), params->text);
- // The text should be left aligned horizontally and centered vertically.
- EXPECT_EQ(0, params->bounds.x());
- EXPECT_EQ(0, params->bounds.y());
- EXPECT_EQ(required_size.width(), params->bounds.width());
- EXPECT_EQ(label.height(), params->bounds.height());
- EXPECT_EQ(gfx::Canvas::TEXT_ALIGN_LEFT,
- params->flags & (gfx::Canvas::TEXT_ALIGN_LEFT |
- gfx::Canvas::TEXT_ALIGN_CENTER |
- gfx::Canvas::TEXT_ALIGN_RIGHT));
-
-
- // Test single line drawing with a border.
- gfx::Insets border(39, 34, 8, 96);
- label.SetBorder(Border::CreateEmptyBorder(
- border.top(), border.left(), border.bottom(), border.right()));
-
- gfx::Size required_size_with_border(label.GetPreferredSize());
- EXPECT_EQ(required_size.width() + border.width(),
- required_size_with_border.width());
- EXPECT_EQ(required_size.height() + border.height(),
- required_size_with_border.height());
- label.SetBounds(0, 0, required_size_with_border.width() + extra.width(),
- required_size_with_border.height() + extra.height());
-
- // Centered text with border.
- label.SetHorizontalAlignment(gfx::ALIGN_CENTER);
- label.ResetLayoutCache();
- params = label.CalculateDrawStringParams();
- EXPECT_EQ(label.text(), params->text);
- // The text should be centered horizontally and vertically within the border.
- EXPECT_EQ(border.left() + extra.width() / 2, params->bounds.x());
- EXPECT_EQ(border.top(), params->bounds.y());
- EXPECT_EQ(required_size.width(), params->bounds.width());
- EXPECT_EQ(label.GetContentsBounds().height(), params->bounds.height());
- EXPECT_EQ(gfx::Canvas::TEXT_ALIGN_CENTER,
- params->flags & (gfx::Canvas::TEXT_ALIGN_LEFT |
- gfx::Canvas::TEXT_ALIGN_CENTER |
- gfx::Canvas::TEXT_ALIGN_RIGHT));
-
- // ALIGN_LEFT text with border.
- label.SetHorizontalAlignment(gfx::ALIGN_LEFT);
- label.ResetLayoutCache();
- params = label.CalculateDrawStringParams();
- EXPECT_EQ(label.text(), params->text);
- // The text should be right aligned horizontally and centered vertically.
- EXPECT_EQ(border.left() + extra.width(), params->bounds.x());
- EXPECT_EQ(border.top(), params->bounds.y());
- EXPECT_EQ(required_size.width(), params->bounds.width());
- EXPECT_EQ(label.GetContentsBounds().height(), params->bounds.height());
- EXPECT_EQ(gfx::Canvas::TEXT_ALIGN_RIGHT,
- params->flags & (gfx::Canvas::TEXT_ALIGN_LEFT |
- gfx::Canvas::TEXT_ALIGN_CENTER |
- gfx::Canvas::TEXT_ALIGN_RIGHT));
-
- // ALIGN_RIGHT text.
- label.SetHorizontalAlignment(gfx::ALIGN_RIGHT);
- label.ResetLayoutCache();
- params = label.CalculateDrawStringParams();
- EXPECT_EQ(label.text(), params->text);
- // The text should be left aligned horizontally and centered vertically.
- EXPECT_EQ(border.left(), params->bounds.x());
- EXPECT_EQ(border.top(), params->bounds.y());
- EXPECT_EQ(required_size.width(), params->bounds.width());
- EXPECT_EQ(label.GetContentsBounds().height(), params->bounds.height());
- EXPECT_EQ(gfx::Canvas::TEXT_ALIGN_LEFT,
- params->flags & (gfx::Canvas::TEXT_ALIGN_LEFT |
- gfx::Canvas::TEXT_ALIGN_CENTER |
- gfx::Canvas::TEXT_ALIGN_RIGHT));
-
- // Reset locale.
- base::i18n::SetICUDefaultLocale(locale);
-}
-
-// On Linux the underlying pango routines require a max height in order to
-// ellide multiline text. So until that can be resolved, we set all
-// multiline lables to not ellide in Linux only.
-TEST_F(LabelTest, DrawMultiLineStringInRTL) {
- Label label;
- label.SetFocusable(false);
-
- // Test for RTL.
- std::string locale = l10n_util::GetApplicationLocale("");
- base::i18n::SetICUDefaultLocale("he");
-
- label.SetText(ASCIIToUTF16("Another string\nwith returns\n\n!"));
- label.SetMultiLine(true);
- label.SizeToFit(0);
- gfx::Size extra(50, 10);
- label.SetBounds(label.x(), label.y(),
- label.width() + extra.width(),
- label.height() + extra.height());
-
- // Do some basic verifications for all three alignments.
- const Label::DrawStringParams* params = label.CalculateDrawStringParams();
- EXPECT_EQ(label.text(), params->text);
- EXPECT_EQ(extra.width() / 2, params->bounds.x());
- EXPECT_EQ(extra.height() / 2, params->bounds.y());
- EXPECT_GT(params->bounds.width(), kMinTextDimension);
- EXPECT_GT(params->bounds.height(), kMinTextDimension);
- EXPECT_TRUE(gfx::Canvas::MULTI_LINE & params->flags);
- EXPECT_TRUE(gfx::Canvas::TEXT_ALIGN_CENTER & params->flags);
-#if !defined(OS_WIN)
- EXPECT_TRUE(gfx::Canvas::NO_ELLIPSIS & params->flags);
-#endif
- gfx::Rect center_bounds(params->bounds);
-
- label.SetHorizontalAlignment(gfx::ALIGN_LEFT);
- label.ResetLayoutCache();
- params = label.CalculateDrawStringParams();
- EXPECT_EQ(label.text(), params->text);
- EXPECT_EQ(extra.width(), params->bounds.x());
- EXPECT_EQ(extra.height() / 2, params->bounds.y());
- EXPECT_GT(params->bounds.width(), kMinTextDimension);
- EXPECT_GT(params->bounds.height(), kMinTextDimension);
- EXPECT_TRUE(gfx::Canvas::MULTI_LINE & params->flags);
- EXPECT_TRUE(gfx::Canvas::TEXT_ALIGN_RIGHT & params->flags);
-#if !defined(OS_WIN)
- EXPECT_TRUE(gfx::Canvas::NO_ELLIPSIS & params->flags);
-#endif
-
- label.SetHorizontalAlignment(gfx::ALIGN_RIGHT);
- label.ResetLayoutCache();
- params = label.CalculateDrawStringParams();
- EXPECT_EQ(label.text(), params->text);
- EXPECT_EQ(0, params->bounds.x());
- EXPECT_EQ(extra.height() / 2, params->bounds.y());
- EXPECT_GT(params->bounds.width(), kMinTextDimension);
- EXPECT_GT(params->bounds.height(), kMinTextDimension);
- EXPECT_TRUE(gfx::Canvas::MULTI_LINE & params->flags);
- EXPECT_TRUE(gfx::Canvas::TEXT_ALIGN_LEFT & params->flags);
-#if !defined(OS_WIN)
- EXPECT_TRUE(gfx::Canvas::NO_ELLIPSIS & params->flags);
-#endif
-
- // Test multiline drawing with a border.
- gfx::Insets border(19, 92, 23, 2);
- label.SetBorder(Border::CreateEmptyBorder(
- border.top(), border.left(), border.bottom(), border.right()));
- label.SizeToFit(0);
- label.SetBounds(label.x(), label.y(),
- label.width() + extra.width(),
- label.height() + extra.height());
-
- label.SetHorizontalAlignment(gfx::ALIGN_CENTER);
- label.ResetLayoutCache();
- params = label.CalculateDrawStringParams();
- EXPECT_EQ(label.text(), params->text);
- EXPECT_EQ(border.left() + extra.width() / 2, params->bounds.x());
- EXPECT_EQ(border.top() + extra.height() / 2, params->bounds.y());
- EXPECT_EQ(center_bounds.width(), params->bounds.width());
- EXPECT_EQ(center_bounds.height(), params->bounds.height());
- EXPECT_TRUE(gfx::Canvas::MULTI_LINE & params->flags);
- EXPECT_TRUE(gfx::Canvas::TEXT_ALIGN_CENTER & params->flags);
-#if !defined(OS_WIN)
- EXPECT_TRUE(gfx::Canvas::NO_ELLIPSIS & params->flags);
-#endif
+ gfx::Size required_size = label.GetPreferredSize();
+ EXPECT_GT(required_size.height(), kMinTextDimension);
+ EXPECT_GT(required_size.width(), kMinTextDimension);
+ label.SetBoundsRect(gfx::Rect(required_size));
- label.SetHorizontalAlignment(gfx::ALIGN_LEFT);
- label.ResetLayoutCache();
- params = label.CalculateDrawStringParams();
- EXPECT_EQ(label.text(), params->text);
- EXPECT_EQ(border.left() + extra.width(), params->bounds.x());
- EXPECT_EQ(border.top() + extra.height() / 2, params->bounds.y());
- EXPECT_EQ(center_bounds.width(), params->bounds.width());
- EXPECT_EQ(center_bounds.height(), params->bounds.height());
- EXPECT_TRUE(gfx::Canvas::MULTI_LINE & params->flags);
- EXPECT_TRUE(gfx::Canvas::TEXT_ALIGN_RIGHT & params->flags);
-#if !defined(OS_WIN)
- EXPECT_TRUE(gfx::Canvas::NO_ELLIPSIS & params->flags);
-#endif
+ label.SetElideBehavior(gfx::ELIDE_TAIL);
+ EXPECT_EQ(required_size.ToString(), label.GetPreferredSize().ToString());
+ EXPECT_EQ(text, label.GetDisplayTextForTesting());
- label.SetHorizontalAlignment(gfx::ALIGN_RIGHT);
- label.ResetLayoutCache();
- params = label.CalculateDrawStringParams();
- EXPECT_EQ(label.text(), params->text);
- EXPECT_EQ(border.left(), params->bounds.x());
- EXPECT_EQ(border.top() + extra.height() / 2, params->bounds.y());
- EXPECT_EQ(center_bounds.width(), params->bounds.width());
- EXPECT_EQ(center_bounds.height(), params->bounds.height());
- EXPECT_TRUE(gfx::Canvas::MULTI_LINE & params->flags);
- EXPECT_TRUE(gfx::Canvas::TEXT_ALIGN_LEFT & params->flags);
-#if !defined(OS_WIN)
- EXPECT_TRUE(gfx::Canvas::NO_ELLIPSIS & params->flags);
-#endif
+ label.SizeToFit(required_size.width() - 1);
+ gfx::Size narrow_size = label.GetPreferredSize();
+ EXPECT_GT(required_size.width(), narrow_size.width());
+ EXPECT_LT(required_size.height(), narrow_size.height());
- // Reset Locale
- base::i18n::SetICUDefaultLocale(locale);
-}
+ // SetBounds() doesn't change the preferred size.
+ label.SetBounds(0, 0, narrow_size.width() - 1, narrow_size.height());
+ EXPECT_EQ(narrow_size.ToString(), label.GetPreferredSize().ToString());
-// Ensure the subpixel rendering flag and background color alpha are respected.
-TEST_F(LabelTest, DisableSubpixelRendering) {
- Label label;
- label.SetBackgroundColor(SK_ColorWHITE);
- const int flag = gfx::Canvas::NO_SUBPIXEL_RENDERING;
- EXPECT_EQ(0, label.ComputeDrawStringFlags() & flag);
- label.SetSubpixelRenderingEnabled(false);
- EXPECT_EQ(flag, label.ComputeDrawStringFlags() & flag);
- label.SetSubpixelRenderingEnabled(true);
- EXPECT_EQ(0, label.ComputeDrawStringFlags() & flag);
- // Text cannot be drawn with subpixel rendering on transparent backgrounds.
- label.SetBackgroundColor(SkColorSetARGB(64, 255, 255, 255));
- EXPECT_EQ(flag, label.ComputeDrawStringFlags() & flag);
+ // Paint() doesn't change the preferred size.
+ gfx::Canvas canvas;
+ label.Paint(&canvas, CullSet());
+ EXPECT_EQ(narrow_size.ToString(), label.GetPreferredSize().ToString());
}
// Check that labels support GetTooltipHandlerForPoint.
@@ -894,4 +470,64 @@ TEST_F(LabelTest, GetTooltipHandlerForPoint) {
EXPECT_FALSE(label.GetTooltipHandlerForPoint(gfx::Point(3, 11)));
}
+// Check that label releases its internal layout data when it's unnecessary.
+TEST_F(LabelTest, ResetRenderTextData) {
+ Label label;
+ label.SetText(ASCIIToUTF16("Example"));
+ label.SizeToPreferredSize();
+ gfx::Size preferred_size = label.GetPreferredSize();
+
+ EXPECT_NE(gfx::Size().ToString(), preferred_size.ToString());
+ EXPECT_EQ(0u, label.lines_.size());
+
+ gfx::Canvas canvas(preferred_size, 1.0f, true);
+ label.Paint(&canvas, CullSet());
+ EXPECT_EQ(1u, label.lines_.size());
+
+ // Label should recreate its RenderText object when it's invisible, to release
+ // the layout structures and data.
+ label.SetVisible(false);
+ EXPECT_EQ(0u, label.lines_.size());
+
+ // Querying fields or size information should not recompute the layout
+ // unnecessarily.
+ EXPECT_EQ(ASCIIToUTF16("Example"), label.text());
+ EXPECT_EQ(0u, label.lines_.size());
+
+ EXPECT_EQ(preferred_size.ToString(), label.GetPreferredSize().ToString());
+ EXPECT_EQ(0u, label.lines_.size());
+
+ // RenderText data should be back when it's necessary.
+ label.SetVisible(true);
+ EXPECT_EQ(0u, label.lines_.size());
+
+ label.Paint(&canvas, CullSet());
+ EXPECT_EQ(1u, label.lines_.size());
+
+ // Changing layout just resets |lines_|. It'll recover next time it's drawn.
+ label.SetBounds(0, 0, 10, 10);
+ EXPECT_EQ(0u, label.lines_.size());
+
+ label.Paint(&canvas, CullSet());
+ EXPECT_EQ(1u, label.lines_.size());
+}
+
+#if !defined(OS_MACOSX)
+TEST_F(LabelTest, MultilineSupportedRenderText) {
+ scoped_ptr<gfx::RenderText> render_text(gfx::RenderText::CreateInstance());
+ ASSERT_TRUE(render_text->MultilineSupported());
+
+ Label label;
+ label.SetText(ASCIIToUTF16("Example of\nmultilined label"));
+ label.SetMultiLine(true);
+ label.SizeToPreferredSize();
+
+ gfx::Canvas canvas(label.GetPreferredSize(), 1.0f, true);
+ label.Paint(&canvas, CullSet());
+
+ // There's only one 'line', RenderText itself supports multiple lines.
+ EXPECT_EQ(1u, label.lines_.size());
+}
+#endif
+
} // namespace views
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