mirror of https://github.com/fltk/fltk
Fix STR #2575: use the screen that intersects most of the window when made fullscreen.
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@8515 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
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FL/Fl.H
3
FL/Fl.H
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@ -784,7 +784,8 @@ public:
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screen_xywh(X, Y, W, H, e_x_root, e_y_root);
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}
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static void screen_xywh(int &X, int &Y, int &W, int &H, int mx, int my);
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static void screen_xywh(int &X, int &Y, int &W, int &H, int n);
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static void screen_xywh(int &X, int &Y, int &W, int &H, int n);
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static void screen_xywh(int &X, int &Y, int &W, int &H, int mx, int my, int mw, int mh);
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static void screen_dpi(float &h, float &v, int n=0);
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/** @} */
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@ -68,13 +68,16 @@ void Fl_Window::fullscreen() {
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#endif
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#if defined(__APPLE__) || defined(WIN32) || defined(USE_X11)
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int sx, sy, sw, sh;
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Fl::screen_xywh(sx, sy, sw, sh, x()+w()/2, y()+h()/2);
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Fl::screen_xywh(sx, sy, sw, sh, x(), y(), w(), h());
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// if we are on the main screen, we will leave the system menu bar unobstructed
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if (Fl::x()>=sx && Fl::y()>=sy && Fl::x()+Fl::w()<=sx+sw && Fl::y()+Fl::h()<=sy+sh) {
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sx = Fl::x(); sy = Fl::y();
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sw = Fl::w(); sh = Fl::h();
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}
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if (x()==sx) x(sx+1); // make sure that we actually execute the resize
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#if defined(USE_X11)
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resize(0, 0, w(), h()); // work around some quirks in X11
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#endif
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resize(sx, sy, sw, sh);
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#else
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if (!x()) x(1); // make sure that we actually execute the resize
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@ -284,6 +284,41 @@ void Fl::screen_xywh(int &X, int &Y, int &W, int &H, int n) {
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H = Fl::h();
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}
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static inline float fl_intersection(int x1, int y1, int w1, int h1,
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int x2, int y2, int w2, int h2) {
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if(x1+w1 < x2 || x2+w2 < x1 || y1+h1 < y2 || y2+h2 < y1)
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return 0.;
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int int_left = x1 > x2 ? x1 : x2;
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int int_right = x1+w1 > x2+w2 ? x2+w2 : x1+w1;
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int int_top = y1 > y2 ? y1 : y2;
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int int_bottom = y1+h1 > y2+h2 ? y2+h2 : y1+h1;
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return (float)(int_right - int_left) * (int_bottom - int_top);
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}
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/**
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Gets the screen bounding rect for the screen
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which intersects the most with the rectangle
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defined by \p mx, \p my, \p mw, \p mh.
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\param[out] X,Y,W,H the corresponding screen bounding box
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\param[in] mx, my, mw, mh the rectangle to search for intersection with
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\see void screen_xywh(int &X, int &Y, int &W, int &H, int n)
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*/
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void Fl::screen_xywh(int &X, int &Y, int &W, int &H, int mx, int my, int mw, int mh) {
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int best_screen = 0;
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float best_intersection = 0.;
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for(int i = 0; i < Fl::screen_count(); i++) {
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int sx, sy, sw, sh;
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Fl::screen_xywh(sx, sy, sw, sh, i);
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float sintersection = fl_intersection(mx, my, mw, mh, sx, sy, sw, sh);
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if(sintersection > best_intersection) {
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best_screen = i;
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best_intersection = sintersection;
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}
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}
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screen_xywh(X, Y, W, H, best_screen);
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}
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/**
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Gets the screen resolution in dots-per-inch for the given screen.
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