xtd - Reference Guide  0.1.2
Modern c++17/20 framework to create console, GUI and unit test applications on Windows, macOS, Linux, iOS and android.
Loading...
Searching...
No Matches
color_picker.h
Go to the documentation of this file.
1
4#pragma once
5#include "control.h"
6
8namespace xtd {
10 namespace forms {
23 public:
26
30 const drawing::color& color() const {return color_;}
34 void color(const drawing::color& color);
35
36 drawing::size default_size() const override {return {100, 25};}
37
38
41 bool alpha_color() const {return alpha_color_;}
44 color_picker& alpha_color(bool alpha_color) {
45 if (alpha_color_ != alpha_color) {
46 alpha_color_ = alpha_color;
47 recreate_handle();
48 }
49 return *this;
50 }
51
55
56 protected:
57 forms::create_params create_params() const override;
58
62
63 void on_handle_created(const event_args& e) override;
64
65 void wnd_proc(message& message) override;
66
67 private:
68 void wm_click(message& message);
69 drawing::color color_;
70 bool alpha_color_ = false;
71 };
72 }
73}
Represents an ARGB (alpha, red, green, blue) color.
Definition color.h:39
Stores an ordered pair of integers, which specify a height and width.
Definition size.h:25
Represents the base class for classes that contain event data, and provides a value to use for events...
Definition event_args.h:18
Represents an event.
Definition event.h:21
Represents a picker control that displays available colors along with controls that enable the user t...
Definition color_picker.h:22
color_picker & alpha_color(bool alpha_color)
Sets a value indicating whether the user can use the dialog box to define custom colors.
Definition color_picker.h:44
void color(const drawing::color &color)
Sets the color selected by the user.
forms::create_params create_params() const override
Gets the required creation parameters when the control handle is created.
void on_color_changed(const event_args &e)
Raises the color_changed event.
const drawing::color & color() const
Gets the color selected by the user.
Definition color_picker.h:30
color_picker()
Initializes a new instance of the color_picker class.
drawing::size default_size() const override
Gets the default size of the control.
Definition color_picker.h:36
bool alpha_color() const
Gets a value indicating whether the dialog box shows alpha values and an opacity selector (slider).
Definition color_picker.h:41
void wnd_proc(message &message) override
Processes Windows messages.
void on_handle_created(const event_args &e) override
Raises the control::handle_created event.
Defines the base class for controls, which are components with visual representation.
Definition control.h:67
Implements a Windows message.
Definition message.h:25
Contains xtd::forms::control control.
event< color_picker, event_handler > color_changed
Occurs when the value of the color property changes.
Definition color_picker.h:54
#define forms_export_
Define shared library export.
Definition forms_export.h:13
@ alpha_color
The color box shows alpha values and an opacity selector (slider).
The xtd::forms namespace contains classes for creating Windows-based applications that take full adva...
Definition about_box.h:13
The xtd namespace contains all fundamental classes to access Hardware, Os, System,...
Definition system_report.h:17