MaxOS/html/desktop_8h_source.html

#ifndef MaxOS_GUI_DESKTOP_H

#define MaxOS_GUI_DESKTOP_H


#include <cstdint>

#include <common/graphicsContext.h>

#include <drivers/peripherals/mouse.h>

#include <gui/widget.h>

#include <drivers/clock/clock.h>


namespace MaxOS::gui {


    class Desktop : public CompositeWidget, public drivers::peripherals::MouseEventHandler {


        protected:

            uint32_t m_mouse_x;

            uint32_t m_mouse_y;


            common::GraphicsContext* m_graphics_context;


            Widget* m_focussed_widget { nullptr };

            drivers::peripherals::MouseEventHandler* m_dragged_widget { nullptr };


            void set_focus(Widget*) final;

            void bring_to_front(Widget*) final;

            void invert_mouse_cursor();


            common::Vector<common::Rectangle<int32_t>> m_invalid_areas;

            void internal_invalidate(common::Rectangle<int32_t>& area, common::Vector<common::Rectangle<int32_t>>::iterator start, common::Vector<common::Rectangle<int32_t>>::iterator stop);

            void draw_self(common::GraphicsContext* gc, common::Rectangle<int32_t>& area) final;


        public:

            common::Colour colour;


            explicit Desktop(common::GraphicsContext* gc);

            ~Desktop();


            void add_child(Widget*) final;

            void on_time(const common::Time& time);

            void invalidate(common::Rectangle<int32_t>& area) final;


            // Mouse Events

            void on_mouse_move_event(int8_t x, int8_t y) final;

            void on_mouse_down_event(uint8_t button) final;

            void on_mouse_up_event(uint8_t button) final;


            // Keyboard Events

            void on_key_down(drivers::peripherals::KeyCode key_down_code, const drivers::peripherals::KeyboardState& key_down_state) final;

            void on_key_up(drivers::peripherals::KeyCode key_up_code, const drivers::peripherals::KeyboardState& key_up_state) final;


    };


}


#endif //MaxOS_GUI_DESKTOP_H

MaxOS::common::Colour
Stores the red, green, blue and alpha values of a colour. Can be parsed from a hex string,...
Definition colour.h:91

MaxOS::common::GraphicsContext
Draws pixels to the screen, and handles drawing lines, rectangles and circles.
Definition graphicsContext.h:22

MaxOS::common::Rectangle
Stores the left, top, width and height of a rectangle.
Definition rectangle.h:22

MaxOS::common::Vector
Dynamically stores an array of elements.
Definition vector.h:39

MaxOS::drivers::peripherals::KeyboardState
Holds the state of the keyboard.
Definition keyboard.h:216

MaxOS::drivers::peripherals::MouseEventHandler
Handles events that are triggered by the mouse driver.
Definition mouse.h:72

MaxOS::gui::CompositeWidget
A widget that can contain other widgets.
Definition widget.h:88

MaxOS::gui::Desktop
The desktop that contains all the windows, handles the drawing of the screen and the mouse on every t...
Definition desktop.h:27

MaxOS::gui::Desktop::add_child
void add_child(Widget *) final
Adds a child widget to the desktop.
Definition desktop.cpp:154

MaxOS::gui::Desktop::internal_invalidate
void internal_invalidate(common::Rectangle< int32_t > &area, common::Vector< common::Rectangle< int32_t > >::iterator start, common::Vector< common::Rectangle< int32_t > >::iterator stop)
Goes through the passed areas and invalidates the areas that are covered by the given area.
Definition desktop.cpp:97

MaxOS::gui::Desktop::on_mouse_up_event
void on_mouse_up_event(uint8_t button) final
When the mouse button is released pass the event to the widget that the mouse is over.
Definition desktop.cpp:265

MaxOS::gui::Desktop::draw_self
void draw_self(common::GraphicsContext *gc, common::Rectangle< int32_t > &area) final
Draws a certain area of the desktop.
Definition desktop.cpp:137

MaxOS::gui::Desktop::on_time
void on_time(const common::Time &time)
Redraws the desktop when a time event occurs.
Definition desktop.cpp:176

MaxOS::gui::Desktop::on_mouse_move_event
void on_mouse_move_event(int8_t x, int8_t y) final
When the mouse moves on the desktop update the m_position of the mouse and redraw the cursor....
Definition desktop.cpp:219

MaxOS::gui::Desktop::on_key_down
void on_key_down(drivers::peripherals::KeyCode key_down_code, const drivers::peripherals::KeyboardState &key_down_state) final
When a key is pressed pass the event to the widget that is currently focussed.
Definition desktop.cpp:279

MaxOS::gui::Desktop::colour
common::Colour colour
The background colour of the desktop (.
Definition desktop.h:47

MaxOS::gui::Desktop::on_key_up
void on_key_up(drivers::peripherals::KeyCode key_up_code, const drivers::peripherals::KeyboardState &key_up_state) final
When a key is pressed pass the event to the widget that is currently focussed.
Definition desktop.cpp:291

MaxOS::gui::Desktop::invert_mouse_cursor
void invert_mouse_cursor()
Draws the mouse cursor at the current mouse m_position by inverting the pixels (mouse is a plus sign)
Definition desktop.cpp:77

MaxOS::gui::Desktop::m_dragged_widget
drivers::peripherals::MouseEventHandler * m_dragged_widget
The widget that the mouse is currently dragging.
Definition desktop.h:36

MaxOS::gui::Desktop::m_mouse_y
uint32_t m_mouse_y
The vertical position of the mouse cursor.
Definition desktop.h:31

MaxOS::gui::Desktop::m_mouse_x
uint32_t m_mouse_x
The horizontal position of the mouse cursor.
Definition desktop.h:30

MaxOS::gui::Desktop::m_focussed_widget
Widget * m_focussed_widget
The widget that currently is receiving keyboard input and is at the front.
Definition desktop.h:35

MaxOS::gui::Desktop::set_focus
void set_focus(Widget *) final
Updates the currently focussed widget to be the given widget.
Definition desktop.cpp:49

MaxOS::gui::Desktop::on_mouse_down_event
void on_mouse_down_event(uint8_t button) final
When the mouse button is pressed pass the event to the widget that the mouse is over.
Definition desktop.cpp:254

MaxOS::gui::Desktop::m_graphics_context
common::GraphicsContext * m_graphics_context
Where to draw the desktop to.
Definition desktop.h:33

MaxOS::gui::Desktop::m_invalid_areas
common::Vector< common::Rectangle< int32_t > > m_invalid_areas
The areas of the desktop that need to be redrawn.
Definition desktop.h:42

MaxOS::gui::Widget
A graphical object that can be drawn on the screen.
Definition widget.h:29

MaxOS::gui::Widget::invalidate
void invalidate()
Invalidates the entire widget. This forces the widget to be redrawn on the next screen update.
Definition widget.cpp:55

MaxOS::gui::Widget::bring_to_front
void bring_to_front()
Brings this widget to the front of the screen.
Definition widget.cpp:230

clock.h
Defines drivers for the Programmable Interval Timer (PIT) and APIC Clock.

graphicsContext.h
Defines a GraphicsContext class for drawing pixels, lines, rectangles and circles to the screen.

MaxOS::drivers::peripherals::KeyCode
KeyCode
A mapping of key codes to their values.
Definition keyboard.h:40

mouse.h
Defines a MouseDriver for handling PS/2 mouse input and generating mouse events.

MaxOS::common::Time
Stores the year, month, day, hour, minute and second of a time.
Definition time.h:24

widget.h
Defines a base Widget class and CompositeWidget class for creating graphical user interface elements.