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Unified Diff: gfx/platform_font_win.h

Issue 6246027: Move src/gfx/ to src/ui/gfx... (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/
Patch Set: '' Created 9 years, 11 months ago
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Index: gfx/platform_font_win.h
===================================================================
--- gfx/platform_font_win.h (revision 73487)
+++ gfx/platform_font_win.h (working copy)
@@ -6,126 +6,7 @@
#define GFX_PLATFORM_FONT_WIN_
#pragma once
-#include "base/ref_counted.h"
-#include "gfx/platform_font.h"
+#include "ui/gfx/platform_font_win.h"
+// TODO(sail): remove this file once all includes have been updated.
-namespace gfx {
-
-class PlatformFontWin : public PlatformFont {
- public:
- PlatformFontWin();
- explicit PlatformFontWin(const Font& other);
- explicit PlatformFontWin(NativeFont native_font);
- PlatformFontWin(const string16& font_name,
- int font_size);
-
- // Dialog units to pixels conversion.
- // See http://support.microsoft.com/kb/145994 for details.
- int horizontal_dlus_to_pixels(int dlus) const {
- return dlus * font_ref_->dlu_base_x() / 4;
- }
- int vertical_dlus_to_pixels(int dlus) const {
- return dlus * font_ref_->height() / 8;
- }
-
- // Callback that returns the minimum height that should be used for
- // gfx::Fonts. Optional. If not specified, the minimum font size is 0.
- typedef int (*GetMinimumFontSizeCallback)();
- static GetMinimumFontSizeCallback get_minimum_font_size_callback;
-
- // Callback that adjusts a LOGFONT to meet suitability requirements of the
- // embedding application. Optional. If not specified, no adjustments are
- // performed other than clamping to a minimum font height if
- // |get_minimum_font_size_callback| is specified.
- typedef void (*AdjustFontCallback)(LOGFONT* lf);
- static AdjustFontCallback adjust_font_callback;
-
- // Overridden from PlatformFont:
- virtual Font DeriveFont(int size_delta, int style) const;
- virtual int GetHeight() const;
- virtual int GetBaseline() const;
- virtual int GetAverageCharacterWidth() const;
- virtual int GetStringWidth(const string16& text) const;
- virtual int GetExpectedTextWidth(int length) const;
- virtual int GetStyle() const;
- virtual string16 GetFontName() const;
- virtual int GetFontSize() const;
- virtual NativeFont GetNativeFont() const;
-
- private:
- virtual ~PlatformFontWin() {}
-
- // Chrome text drawing bottoms out in the Windows GDI functions that take an
- // HFONT (an opaque handle into Windows). To avoid lots of GDI object
- // allocation and destruction, Font indirectly refers to the HFONT by way of
- // an HFontRef. That is, every Font has an HFontRef, which has an HFONT.
- //
- // HFontRef is reference counted. Upon deletion, it deletes the HFONT.
- // By making HFontRef maintain the reference to the HFONT, multiple
- // HFontRefs can share the same HFONT, and Font can provide value semantics.
- class HFontRef : public base::RefCounted<HFontRef> {
- public:
- // This constructor takes control of the HFONT, and will delete it when
- // the HFontRef is deleted.
- HFontRef(HFONT hfont,
- int height,
- int baseline,
- int ave_char_width,
- int style,
- int dlu_base_x);
-
- // Accessors
- HFONT hfont() const { return hfont_; }
- int height() const { return height_; }
- int baseline() const { return baseline_; }
- int ave_char_width() const { return ave_char_width_; }
- int style() const { return style_; }
- int dlu_base_x() const { return dlu_base_x_; }
- const string16& font_name() const { return font_name_; }
-
- private:
- friend class base::RefCounted<HFontRef>;
-
- ~HFontRef();
-
- const HFONT hfont_;
- const int height_;
- const int baseline_;
- const int ave_char_width_;
- const int style_;
- // Constants used in converting dialog units to pixels.
- const int dlu_base_x_;
- string16 font_name_;
-
- DISALLOW_COPY_AND_ASSIGN(HFontRef);
- };
-
- // Initializes this object with a copy of the specified HFONT.
- void InitWithCopyOfHFONT(HFONT hfont);
-
- // Initializes this object with the specified font name and size.
- void InitWithFontNameAndSize(const string16& font_name,
- int font_size);
-
- // Returns the base font ref. This should ONLY be invoked on the
- // UI thread.
- static HFontRef* GetBaseFontRef();
-
- // Creates and returns a new HFONTRef from the specified HFONT.
- static HFontRef* CreateHFontRef(HFONT font);
-
- // Creates a new PlatformFontWin with the specified HFontRef. Used when
- // constructing a Font from a HFONT we don't want to copy.
- explicit PlatformFontWin(HFontRef* hfont_ref);
-
- // Reference to the base font all fonts are derived from.
- static HFontRef* base_font_ref_;
-
- // Indirect reference to the HFontRef, which references the underlying HFONT.
- scoped_refptr<HFontRef> font_ref_;
-};
-
-} // namespace gfx
-
#endif // GFX_PLATFORM_FONT_WIN_
-
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