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//
// Definition of X11 Screen interface
// 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_X11_Screen_Driver.H
\brief Definition of X11 Screen interface
*/
#ifndef FL_X11_SCREEN_DRIVER_H
#define FL_X11_SCREEN_DRIVER_H
#include <config.h>
#include "../Unix/Fl_Unix_Screen_Driver.H"
#include <X11/Xlib.h>
class Fl_Window;
class Fl_X11_Screen_Driver : public Fl_Unix_Screen_Driver
{
friend class Fl_Screen_Driver;
protected:
typedef struct {
short x_org;
short y_org;
short width;
short height;
#if USE_XFT || FLTK_USE_CAIRO
float scale;
#endif
} FLScreenInfo;
FLScreenInfo screens[MAX_SCREENS];
float dpi[MAX_SCREENS][2];
int get_mouse_unscaled(int &xx, int &yy);
public:
#if USE_XFT || FLTK_USE_CAIRO // scaling does not work without Xft
float current_xft_dpi; // current value of the Xft.dpi X resource
APP_SCALING_CAPABILITY rescalable() FL_OVERRIDE { return PER_SCREEN_APP_SCALING; }
float scale(int n) FL_OVERRIDE {return screens[n].scale;}
void scale(int n, float f) FL_OVERRIDE { screens[n].scale = f;}
void desktop_scale_factor() FL_OVERRIDE;
int screen_num_unscaled(int x, int y);
#endif
Fl_X11_Screen_Driver();
static int ewmh_supported();
static void copy_image(const unsigned char* data, int W, int H, int destination);
// --- display management
void display(const char *disp) FL_OVERRIDE;
int XParseGeometry(const char*, int*, int*, unsigned int*, unsigned int*) FL_OVERRIDE;
int poll_or_select_with_delay(double time_to_wait) FL_OVERRIDE;
int poll_or_select() FL_OVERRIDE;
void own_colormap() FL_OVERRIDE;
const char *shortcut_add_key_name(unsigned key, char *p, char *buf, const char **) FL_OVERRIDE;
int need_menu_handle_part1_extra() FL_OVERRIDE {return 1;}
int need_menu_handle_part2() FL_OVERRIDE {return 1;}
// these 2 are in Fl_get_key.cxx
int event_key(int) FL_OVERRIDE;
int get_key(int) FL_OVERRIDE;
int visual(int flags) FL_OVERRIDE;
// --- screen configuration
void init_workarea();
void init() FL_OVERRIDE;
int x() FL_OVERRIDE;
int y() FL_OVERRIDE;
int w() FL_OVERRIDE;
int h() FL_OVERRIDE;
void screen_xywh(int &X, int &Y, int &W, int &H, int n) FL_OVERRIDE;
void screen_dpi(float &h, float &v, int n=0) FL_OVERRIDE;
void screen_work_area(int &X, int &Y, int &W, int &H, int n) FL_OVERRIDE;
// --- audible output
void beep(int type) FL_OVERRIDE;
// --- global events
void flush() FL_OVERRIDE;
void grab(Fl_Window* win) FL_OVERRIDE;
// --- global colors
int parse_color(const char* p, uchar& r, uchar& g, uchar& b) FL_OVERRIDE;
void get_system_colors() FL_OVERRIDE;
const char *get_system_scheme() FL_OVERRIDE;
int dnd(int unused) FL_OVERRIDE;
int compose(int &del) FL_OVERRIDE;
void compose_reset() FL_OVERRIDE;
int text_display_can_leak() const FL_OVERRIDE;
Fl_RGB_Image *read_win_rectangle(int X, int Y, int w, int h, Fl_Window *win, bool may_capture_subwins, bool *did_capture_subwins) FL_OVERRIDE;
int get_mouse(int &x, int &y) FL_OVERRIDE;
void open_display_platform() FL_OVERRIDE;
void close_display() FL_OVERRIDE;
// --- compute dimensions of an Fl_Offscreen
void offscreen_size(Fl_Offscreen o, int &width, int &height) FL_OVERRIDE;
void default_icons(const Fl_RGB_Image *icons[], int count) FL_OVERRIDE;
// this one is in Fl_x.cxx
void copy(const char *stuff, int len, int clipboard, const char *type) FL_OVERRIDE;
// this one is in Fl_x.cxx
void paste(Fl_Widget &receiver, int clipboard, const char *type) FL_OVERRIDE;
// this one is in Fl_x.cxx
int clipboard_contains(const char *type) FL_OVERRIDE;
// this one is in Fl_x.cxx
void clipboard_notify_change() FL_OVERRIDE;
// for support of input methods
static char fl_is_over_the_spot;
static XRectangle fl_spot;
static int fl_spotf;
static int fl_spots;
static XIM xim_im;
static XIC xim_ic;
static Window xim_win;
static void new_ic();
static void xim_activate(Window xid);
static void xim_deactivate(void);
static void init_xim();
void enable_im() FL_OVERRIDE;
void disable_im() FL_OVERRIDE;
void set_spot(int font, int size, int X, int Y, int W, int H, Fl_Window *win) FL_OVERRIDE;
void reset_spot() FL_OVERRIDE;
void set_status(int X, int Y, int W, int H) FL_OVERRIDE;
};
#endif // FL_X11_SCREEN_DRIVER_H
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