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//
// Definition of X11 Screen interface
// for the Fast Light Tool Kit (FLTK).
//
// Copyright 2010-2018 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 "../../Fl_Screen_Driver.H"
class Fl_Window;
class FL_EXPORT Fl_X11_Screen_Driver : public Fl_Screen_Driver
{
friend class Fl_Screen_Driver;
protected:
typedef struct {
short x_org;
short y_org;
short width;
short height;
#if USE_XFT
float scale;
#endif
} FLScreenInfo;
FLScreenInfo screens[MAX_SCREENS];
float dpi[MAX_SCREENS][2];
int poll_or_select();
int poll_or_select_with_delay(double time_to_wait);
int get_mouse_unscaled(int &xx, int &yy);
public:
#if USE_XFT // scaling does not work without Xft
float current_xft_dpi; // current value of the Xft.dpi X resource
virtual APP_SCALING_CAPABILITY rescalable() { return PER_SCREEN_APP_SCALING; }
virtual float scale(int n) {return screens[n].scale;}
virtual void scale(int n, float f) { screens[n].scale = f;}
virtual void desktop_scale_factor();
int screen_num_unscaled(int x, int y);
#endif
static int ewmh_supported();
static void copy_image(const unsigned char* data, int W, int H, int destination);
// --- display management
virtual void display(const char *disp);
virtual int visual(int flags);
// --- screen configuration
void init_workarea();
virtual void init();
virtual int x();
virtual int y();
virtual int w();
virtual int h();
virtual void screen_xywh(int &X, int &Y, int &W, int &H, int n);
virtual void screen_dpi(float &h, float &v, int n=0);
virtual void screen_work_area(int &X, int &Y, int &W, int &H, int n);
// --- audible output
virtual void beep(int type);
// --- global events
virtual void flush();
virtual double wait(double time_to_wait);
virtual int ready();
virtual void grab(Fl_Window* win);
// --- global colors
virtual int parse_color(const char* p, uchar& r, uchar& g, uchar& b);
virtual void get_system_colors();
virtual const char *get_system_scheme();
// --- global timers
virtual void add_timeout(double time, Fl_Timeout_Handler cb, void *argp);
virtual void repeat_timeout(double time, Fl_Timeout_Handler cb, void *argp);
virtual int has_timeout(Fl_Timeout_Handler cb, void *argp);
virtual void remove_timeout(Fl_Timeout_Handler cb, void *argp);
virtual int dnd(int unused);
virtual int compose(int &del);
virtual void compose_reset();
virtual int text_display_can_leak();
virtual 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);
virtual int get_mouse(int &x, int &y);
virtual void enable_im();
virtual void disable_im();
virtual void open_display_platform();
virtual void close_display();
// --- compute dimensions of an Fl_Offscreen
virtual void offscreen_size(Fl_Offscreen o, int &width, int &height);
virtual void default_icons(const Fl_RGB_Image *icons[], int count);
};
#endif // FL_X11_SCREEN_DRIVER_H
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