nsColorPicker.h - mozsearch

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef nsColorPicker_h__

#define nsColorPicker_h__

#include <gtk/gtk.h>

#include "nsCOMPtr.h"

#include "nsIColorPicker.h"

#include "nsString.h"

// Enable Gtk3 system color picker.

#define ACTIVATE_GTK3_COLOR_PICKER 1

class nsIWidget;

class nsColorPicker final : public nsIColorPicker {

 public:

  NS_DECL_ISUPPORTS

  NS_DECL_NSICOLORPICKER

  nsColorPicker() = default;

 private:

  ~nsColorPicker() = default;

  static nsString ToHexString(int n);

  static void OnResponse(GtkWidget* dialog, gint response_id,

                         gpointer user_data);

  static void OnDestroy(GtkWidget* dialog, gpointer user_data);

#if defined(ACTIVATE_GTK3_COLOR_PICKER)

  static void OnColorChanged(GtkColorChooser* color_chooser, GdkRGBA* color,

                             gpointer user_data);

  static int convertGdkRgbaComponent(gdouble color_component);

  static gdouble convertToGdkRgbaComponent(int color_component);

  static GdkRGBA convertToRgbaColor(nscolor color);

  void Update(GdkRGBA* color);

  void SetColor(const GdkRGBA* color);

#else

  static void OnColorChanged(GtkColorSelection* colorselection,

                             gpointer user_data);

  // Conversion functions for color

  static int convertGdkColorComponent(guint16 color_component);

  static guint16 convertToGdkColorComponent(int color_component);

  static GdkColor convertToGdkColor(nscolor color);

  static GtkColorSelection* WidgetGetColorSelection(GtkWidget* widget);

  void Update(GtkColorSelection* colorselection);

  void ReadValueFromColorSelection(GtkColorSelection* colorselection);

#endif

  void Done(GtkWidget* dialog, gint response_id);

  nsCOMPtr<nsIWidget> mParentWidget;

  nsCOMPtr<nsIColorPickerShownCallback> mCallback;

  nsString mTitle;

  nsString mColor;

  nsString mInitialColor;

  nsTArray<nsString> mDefaultColors;

};

#endif  // nsColorPicker_h__