Index: views/view_text_utils.h |
diff --git a/views/view_text_utils.h b/views/view_text_utils.h |
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-// Copyright (c) 2011 The Chromium Authors. All rights reserved. |
-// Use of this source code is governed by a BSD-style license that can be |
-// found in the LICENSE file. |
-// |
-// This file defines utility functions for working with text in views. |
- |
-#ifndef VIEWS_VIEW_TEXT_UTILS_H_ |
-#define VIEWS_VIEW_TEXT_UTILS_H_ |
-#pragma once |
- |
-#include "base/string16.h" |
-#include "views/views_export.h" |
- |
-namespace gfx { |
-class Canvas; |
-class Font; |
-class Rect; |
-class Size; |
-} |
- |
-namespace views { |
-class Label; |
-class Link; |
-} |
- |
-namespace view_text_utils { |
- |
-// Draws a string onto the canvas (wrapping if needed) while also keeping |
-// track of where it ends so we can position a URL after the text. The |
-// parameter |bounds| represents the boundary we have to work with, |position| |
-// specifies where to draw the string (relative to the top left corner of the |
-// |bounds| rectangle and |font| specifies the font to use when drawing. When |
-// the function returns, the parameter |rect| contains where to draw the URL |
-// (to the right of where we just drew the text) and |position| is updated to |
-// reflect where to draw the next string after the URL. |label| is a dummy |
-// label with the correct width and origin for the text to be written; it's |
-// used so that the x position can be correctly mirrored in RTL languages. |
-// |text_direction_is_rtl| is true if an RTL language is being used. |
-// NOTE: The reason why we need this function is because while Skia knows how |
-// to wrap text appropriately, it doesn't tell us where it drew the last |
-// character, which we need to position the URLs within the text. |
-VIEWS_EXPORT void DrawTextAndPositionUrl(gfx::Canvas* canvas, |
- views::Label* label, |
- const string16& text, |
- views::Link* link, |
- gfx::Rect* rect, |
- gfx::Size* position, |
- bool text_direction_is_rtl, |
- const gfx::Rect& bounds, |
- const gfx::Font& font); |
- |
-// A helper function for DrawTextAndPositionUrl, which simply draws the text |
-// from a certain starting point |position| and wraps within bounds. |
-// |word_for_word| specifies whether to draw the text word for word or whether |
-// to treat the text as one blurb (similar to the way URL's are treated inside |
-// RTL text. For details on the other parameters, see DrawTextAndPositionUrl. |
-void DrawTextStartingFrom(gfx::Canvas* canvas, |
- views::Label* label, |
- const string16& text, |
- gfx::Size* position, |
- const gfx::Rect& bounds, |
- const gfx::Font& font, |
- bool text_direction_is_rtl, |
- bool word_for_word); |
- |
-// A simply utility function that calculates whether a word of width |
-// |word_width| fits at position |position| within the |bounds| rectangle. If |
-// not, |position| is updated to wrap to the beginning of the next line. |
-void WrapIfWordDoesntFit(int word_width, |
- int font_height, |
- gfx::Size* position, |
- const gfx::Rect& bounds); |
- |
-} // namespace view_text_utils |
- |
-#endif // CHROME_BROWSER_VIEWS_VIEW_TEXT_UTILS_H_ |