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Diffstat (limited to 'chrome/views/checkbox.h')
-rw-r--r-- | chrome/views/checkbox.h | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/chrome/views/checkbox.h b/chrome/views/checkbox.h new file mode 100644 index 0000000..739bb89 --- /dev/null +++ b/chrome/views/checkbox.h @@ -0,0 +1,109 @@ +// Copyright 2008, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#ifndef CHROME_VIEWS_CHECKBOX_H__ +#define CHROME_VIEWS_CHECKBOX_H__ + +#include "base/gfx/rect.h" +#include "chrome/views/native_button.h" + +namespace ChromeViews { + +class Label; + +//////////////////////////////////////////////////////////////////////////////// +// +// CheckBox implements a check box button. It uses the standard windows control +// for the check item but not for the label. We have to do this because windows +// always wants to draw a background under the label. I tried to intercept +// WM_CTLCOLORSTATIC and return a NULL_BRUSH and setting the BkMode to +// transparent as well as other things. The background was always drawn as solid +// black. +// +// The label is implemented with a ChromeViews::Label +// +//////////////////////////////////////////////////////////////////////////////// +class CheckBox : public NativeButton { + public: + static const char kViewClassName[]; + static const int kFocusPaddingHorizontal; + static const int kFocusPaddingVertical; + + explicit CheckBox(const std::wstring& label); + virtual ~CheckBox(); + + // Allows the label to wrap across multiple lines if |multi_line| is true. + // If false, the text is cropped. + void SetMultiLine(bool multi_line); + + // Returns the x position of the text. This can also be used to indent + // subsequent dependent controls. + static int GetTextIndent(); + + virtual void SetIsSelected(bool f); + bool IsSelected() const; + + virtual std::string GetClassName() const; + + virtual void GetPreferredSize(CSize *out); + virtual void Layout(); + + virtual bool OnMousePressed(const MouseEvent& event); + virtual bool OnMouseDragged(const MouseEvent& event); + virtual void OnMouseReleased(const MouseEvent& event, bool canceled); + virtual void OnMouseEntered(const MouseEvent& event); + virtual void OnMouseMoved(const MouseEvent& event); + virtual void OnMouseExited(const MouseEvent& event); + + virtual void Paint(ChromeCanvas* canvas); + + // Overriden to forward to the label too. + virtual void SetEnabled(bool enabled); + + protected: + + virtual HWND CreateNativeControl(HWND parent_container); + virtual void ConfigureNativeButton(HWND hwnd); + virtual LRESULT OnCommand(UINT code, int id, HWND source); + + Label* label_; + private: + + void HighlightButton(bool f); + bool LabelHitTest(const MouseEvent& event); + void ComputeTextRect(gfx::Rect* out); + + bool is_selected_; + + + DISALLOW_EVIL_CONSTRUCTORS(CheckBox); +}; +} + +#endif // CHROME_VIEWS_NATIVE_CHECKBOX_H__ |