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//
// Definition of Wayland window driver for the Fast Light Tool Kit (FLTK).
//
// Copyright 2010-2025 by Bill Spitzak and others.
//
// This library is free software. Distribution and use rights are outlined in
// the file "COPYING" which should have been included with this file. If this
// file is missing or damaged, see the license at:
//
// https://www.fltk.org/COPYING.php
//
// Please see the following page on how to report bugs and issues:
//
// https://www.fltk.org/bugs.php
//
/**
\file Fl_Wayland_Window_Driver.H
\brief Definition of Wayland window driver.
*/
#ifndef FL_WAYLAND_WINDOW_DRIVER_H
#define FL_WAYLAND_WINDOW_DRIVER_H
#include <config.h>
#include "../../Fl_Window_Driver.H"
#include <FL/Fl_Plugin.H>
#include "Fl_Wayland_Screen_Driver.H"
#include "Fl_Wayland_Graphics_Driver.H"
/*
Move everything here that manages the native window interface.
There is one window driver for each Fl_Window. Window drivers manage window
actions such as resizing, events, decoration, fullscreen modes, etc. . All
drawing and rendering is managed by the Surface device and the associated
graphics driver.
- window specific event handling
- window types and styles, depth, etc.
- decorations
*/
typedef struct _cairo_pattern cairo_pattern_t;
typedef struct _cairo_rectangle_int cairo_rectangle_int_t;
class Fl_Wayland_Plugin;
class Fl_Wayland_Window_Driver : public Fl_Window_Driver
{
friend class Fl_Wayland_Gl_Window_Driver;
private:
struct shape_data_type {
int lw_; ///< width of shape image
int lh_; ///< height of shape image
Fl_Image* shape_; ///< shape image
cairo_pattern_t *mask_pattern_;
} *shape_data_;
bool can_expand_outside_parent_; // specially to allow window docking (#987)
cairo_rectangle_int_t *subRect_; // makes sure subwindow remains inside its parent window
static bool in_flush_; // useful for progressive window drawing
Fl_Cursor standard_cursor_; // window's standard custom kind
struct gl_start_support *gl_start_support_; // for support of gl_start/gl_finish
bool is_popup_window_;
public:
inline Fl_Cursor standard_cursor() { return standard_cursor_; }
bool in_handle_configure; // distinguish OS and user window resize
struct surface_output { // for linked list of displays where a surface maps
struct Fl_Wayland_Screen_Driver::output *output;
struct wl_list link;
};
struct custom_cursor {
struct wl_cursor *wl_cursor;
const Fl_RGB_Image *rgb;
int hotx, hoty;
};
static void delete_cursor(struct custom_cursor *custom, bool delete_rgb = true);
void decorated_win_size(int &w, int &h);
void shape_bitmap_(Fl_Image* b);
void shape_alpha_(Fl_Image* img, int offset) override;
FL_EXPORT int wld_scale(); // used by class Fl_Wayland_Gl_Window_Driver
cairo_rectangle_int_t *subRect() { return subRect_; } // getter
void subRect(cairo_rectangle_int_t *r); // setter
void checkSubwindowFrame();
enum kind {DECORATED, SUBWINDOW, POPUP, UNFRAMED};
struct xdg_toplevel *xdg_toplevel();
Fl_Wayland_Window_Driver(Fl_Window*);
virtual ~Fl_Wayland_Window_Driver();
static struct wld_window *wld_window;
static Fl_Window *surface_to_window(struct wl_surface *);
static inline Fl_Wayland_Window_Driver* driver(const Fl_Window *w) {
return (Fl_Wayland_Window_Driver*)Fl_Window_Driver::driver(w);
}
static Fl_Wayland_Plugin *gl_plugin();
// --- window data
int decorated_w() override;
int decorated_h() override;
const Fl_Image* shape() override;
// --- window management
void makeWindow() override;
void take_focus() override;
void flush() override;
void flush_overlay() override;
void draw_end() override;
void make_current() override;
void show() override;
void resize(int X,int Y,int W,int H) override;
void label(const char *name, const char *mininame) override;
void hide() override;
void map() override;
void unmap() override;
void fullscreen_on() override;
void fullscreen_off(int X, int Y, int W, int H) override;
void maximize() override;
void un_maximize() override;
void use_border() override;
void size_range() override;
void iconize() override;
void decoration_sizes(int *top, int *left, int *right, int *bottom) override;
// --- window cursor stuff
int set_cursor(Fl_Cursor) override;
int set_cursor(const Fl_RGB_Image*, int, int) override;
int set_cursor_4args(const Fl_RGB_Image*, int, int, bool);
void shape(const Fl_Image* img) override;
void capture_titlebar_and_borders(Fl_RGB_Image*& top, Fl_RGB_Image*& left,
Fl_RGB_Image*& bottom, Fl_RGB_Image*& right) override;
int scroll(int src_x, int src_y, int src_w, int src_h, int dest_x, int dest_y,
void (*draw_area)(void*, int,int,int,int), void* data) override;
void wait_for_expose() override;
// menu-related stuff
void reposition_menu_window(int x, int y) override;
void menu_window_area(int &X, int &Y, int &W, int &H, int nscreen = -1) override;
static bool new_popup; // to support tall menu buttons
bool process_menu_or_tooltip(struct wld_window *);
static Fl_Window *previous_floatingtitle; // to support floating menuwindow w/ title
void allow_expand_outside_parent() override { can_expand_outside_parent_ = true; }
};
struct wld_window {
Fl_Window *fl_win;
struct wl_list outputs; // linked list of displays where part or whole of window maps
struct wl_surface *wl_surface;
struct wl_callback *frame_cb;
struct Fl_Wayland_Graphics_Driver::wld_buffer *buffer;
struct xdg_surface *xdg_surface;
union { // for each value of kind
struct libdecor_frame *frame;
struct wl_subsurface *subsurface;
struct xdg_popup *xdg_popup;
struct xdg_toplevel *xdg_toplevel;
};
// non-null when using custom cursor
struct Fl_Wayland_Window_Driver::custom_cursor *custom_cursor;
#if HAVE_XDG_DIALOG
struct xdg_dialog_v1 *xdg_dialog;
#endif
enum Fl_Wayland_Window_Driver::kind kind;
int configured_width;
int configured_height;
int floating_width;
int floating_height;
int state;
bool covered; // specially for Mutter and issue #878
};
class Fl_Wayland_Plugin : public Fl_Plugin {
public:
Fl_Wayland_Plugin(const char *pluginName) : Fl_Plugin(klass(), pluginName) { }
virtual const char *klass() { return "wayland.fltk.org"; }
virtual const char *name() = 0;
virtual void do_swap(Fl_Window*) = 0;
virtual void invalidate(Fl_Window*) = 0;
virtual void terminate() = 0;
virtual void destroy(struct gl_start_support *) = 0;
};
#endif // FL_WAYLAND_WINDOW_DRIVER_H
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