From f9039b2ae21988783feae9b362818e7923e82d14 Mon Sep 17 00:00:00 2001 From: Michael R Sweet Date: Tue, 6 Oct 1998 18:21:25 +0000 Subject: Initial revision git-svn-id: file:///fltk/svn/fltk/trunk@2 ea41ed52-d2ee-0310-a9c1-e6b18d33e121 --- src/fl_round_box.cxx | 94 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 94 insertions(+) create mode 100644 src/fl_round_box.cxx (limited to 'src/fl_round_box.cxx') diff --git a/src/fl_round_box.cxx b/src/fl_round_box.cxx new file mode 100644 index 000000000..c165e22ec --- /dev/null +++ b/src/fl_round_box.cxx @@ -0,0 +1,94 @@ +/* fl_round_box.C + + Box drawing code for an obscure box type. + These box types are in seperate files so they are not linked + in if not used. + + 3/8/99: Complete rewrite to use XDrawArc +*/ + +#include +#include + +// A compiler from a certain very large software company will not compile +// the function pointer assignment due to the name conflict with fl_arc. +// This function is to fix that: +void fl_arc_i(int x,int y,int w,int h,double a1,double a2) { + fl_arc(x,y,w,h,a1,a2); +} + +enum {UPPER_LEFT, LOWER_RIGHT, CLOSED, FILL}; + +static void draw(int which, int x,int y,int w,int h, int inset, uchar color) +{ + if (inset*2 >= w) inset = (w-1)/2; + if (inset*2 >= h) inset = (h-1)/2; + x += inset; + y += inset; + w -= 2*inset; + h -= 2*inset; + int d = w <= h ? w : h; + if (d <= 1) return; + fl_color((Fl_Color)color); + void (*f)(int,int,int,int,double,double) = + (which==FILL) ? fl_pie : fl_arc_i; + if (which >= CLOSED) { + f(x+w-d, y, d, d, w<=h ? 0 : -90, w<=h ? 180 : 90); + f(x, y+h-d, d, d, w<=h ? 180 : 90, w<=h ? 360 : 270); + } else if (which == UPPER_LEFT) { + f(x+w-d, y, d, d, 45, w<=h ? 180 : 90); + f(x, y+h-d, d, d, w<=h ? 180 : 90, 225); + } else { // LOWER_RIGHT + f(x, y+h-d, d, d, 225, w<=h ? 360 : 270); + f(x+w-d, y, d, d, w<=h ? 360 : 270, 360+45); + } + if (which == FILL) { + if (w < h) + fl_rectf(x, y+d/2, w, h-(d&-2)); + else if (w > h) + fl_rectf(x+d/2, y, w-(d&-2), h); + } else { + if (w < h) { + if (which != UPPER_LEFT) fl_yxline(x+w-1, y+d/2, y+h-d/2); + if (which != LOWER_RIGHT) fl_yxline(x, y+d/2, y+h-d/2); + } else if (w > h) { + if (which != UPPER_LEFT) fl_xyline(x+d/2, y+h-1, x+w-d/2); + if (which != LOWER_RIGHT) fl_xyline(x+d/2, y, x+w-d/2); + } + } +} + +extern uchar* Fl_Gray_Ramp; + +static void fl_round_down_box(int x, int y, int w, int h, Fl_Color bgcolor) { + draw(FILL, x, y, w, h, 2, bgcolor); + draw(UPPER_LEFT, x+1, y, w-2, h, 0, Fl_Gray_Ramp['N']); + draw(UPPER_LEFT, x+1, y, w-2, h, 1, Fl_Gray_Ramp['H']); + draw(UPPER_LEFT, x, y, w, h, 0, Fl_Gray_Ramp['N']); + draw(UPPER_LEFT, x, y, w, h, 1, Fl_Gray_Ramp['H']); + draw(LOWER_RIGHT, x, y, w, h, 0, Fl_Gray_Ramp['S']); + draw(LOWER_RIGHT, x+1, y, w-2, h, 0, Fl_Gray_Ramp['U']); + draw(LOWER_RIGHT, x, y, w, h, 1, Fl_Gray_Ramp['U']); + draw(LOWER_RIGHT, x+1, y, w-2, h, 1, Fl_Gray_Ramp['W']); + draw(CLOSED, x, y, w, h, 2, Fl_Gray_Ramp['A']); +} + +static void fl_round_up_box(int x, int y, int w, int h, Fl_Color bgcolor) { + draw(FILL, x, y, w, h, 2, bgcolor); + draw(LOWER_RIGHT, x+1, y, w-2, h, 0, Fl_Gray_Ramp['H']); + draw(LOWER_RIGHT, x+1, y, w-2, h, 1, Fl_Gray_Ramp['N']); + draw(LOWER_RIGHT, x, y, w, h, 1, Fl_Gray_Ramp['H']); + draw(LOWER_RIGHT, x, y, w, h, 2, Fl_Gray_Ramp['N']); + draw(UPPER_LEFT, x, y, w, h, 2, Fl_Gray_Ramp['U']); + draw(UPPER_LEFT, x+1, y, w-2, h, 1, Fl_Gray_Ramp['S']); + draw(UPPER_LEFT, x, y, w, h, 1, Fl_Gray_Ramp['W']); + draw(UPPER_LEFT, x+1, y, w-2, h, 0, Fl_Gray_Ramp['U']); + draw(CLOSED, x, y, w, h, 0, Fl_Gray_Ramp['A']); +} + +extern void fl_internal_boxtype(Fl_Boxtype, Fl_Box_Draw_F*); +Fl_Boxtype define_FL_ROUND_UP_BOX() { + fl_internal_boxtype(_FL_ROUND_DOWN_BOX, fl_round_down_box); + fl_internal_boxtype(_FL_ROUND_UP_BOX, fl_round_up_box); + return _FL_ROUND_UP_BOX; +} -- cgit v1.2.3