src/Gleam_Theme.cxx

   1
   2 /*******************************************************************************/
   3 /* Copyright (C) 2012 Jonathan Moore Liles                                     */
   4 /* Copyright (C) 2001-2005 by Colin Jones                                      */
   5 /*                                                                             */
   6 /* This program is free software; you can redistribute it and/or modify it     */
   7 /* under the terms of the GNU General Public License as published by the       */
   8 /* Free Software Foundation; either version 2 of the License, or (at your      */
   9 /* option) any later version.                                                  */
  10 /*                                                                             */
  11 /* This program is distributed in the hope that it will be useful, but WITHOUT */
  12 /* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or       */
  13 /* FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for   */
  14 /* more details.                                                               */
  15 /*                                                                             */
  16 /* You should have received a copy of the GNU General Public License along     */
  17 /* with This program; see the file COPYING.  If not,write to the Free Software */
  18 /* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  19 /*******************************************************************************/
  20
  21 /* Taken from the "Gleam" FLTK scheme, as modified by prodatum */
  22
  23 #include <FL/Fl.H>
  24 #include <FL/fl_draw.H>
  25
  26 #include "FL/Fl_Theme.H"
  27
  28 static void gleam_color(Fl_Color c)
  29 {
  30         if (Fl::draw_box_active())
  31                 fl_color(c);
  32         else
  33                 fl_color(fl_inactive(c));
  34 }
  35 static void frame_rect(int x, int y, int w, int h, Fl_Color bc)
  36 {
  37
  38         // Draw the outline around the perimeter of the box
  39         fl_color(fl_color_average(FL_BLACK, FL_BACKGROUND_COLOR, .1));
  40         fl_line(x, y, x + w, y);
  41         fl_line(x + w, y, x + w, y + h);
  42         fl_line(x + w, y + h, x, y + h);
  43         fl_line(x, y + h, x, y);
  44
  45 }
  46
  47 static void shade_rect_up(int x, int y, int w, int h, Fl_Color bc)
  48 {
  49         // Draws the shiny
  50         float third = (float) h / 3;
  51         gleam_color(bc);
  52         fl_rectf(x, y, w, third + 1);
  53
  54         //gleam_color(fl_color_average(bc, FL_WHITE, .90f));
  55         //fl_rectf(x, y, w, half + 1);
  56
  57         float step_size = 0.10 / ((float) h - third);
  58         int j = 0;
  59         //step_size = (.1 / (float) half);
  60         //printf("1 / %i = %f \n", half, (1.0/half));
  61
  62         /**
  63          * This loop generates the nice gradient at the bottom of the
  64          * widget
  65          **/
  66         for (float k = 1; k >= .90; k -= step_size)
  67         {
  68                 j++;
  69                 gleam_color(fl_color_average(bc, FL_WHITE, k));
  70                 fl_line(x, y + j + third - 1, x + w - 1, y + j + third - 1);
  71         }
  72
  73 }
  74
  75 static void frame_rect_up(int x, int y, int w, int h, Fl_Color bc)
  76 {
  77
  78         // Draw the outline around the perimeter of the box
  79         gleam_color(bc);
  80         fl_line(x, y, x + w, y); //Go across.
  81         fl_line(x, y + (h / 2), x, y + 1); //Go to top
  82         fl_line(x + w, y + (h / 2), x + w, y + 1); //Go to top
  83
  84         gleam_color(fl_darker(bc));
  85         fl_line(x, y + h, x + w, y + h); //Go across again!
  86         fl_line(x, y + (h / 2), x, y + h - 1); //Go to top
  87         fl_line(x + w, y + (h / 2), x + w, y + h - 1); //Go to top
  88
  89 }
  90
  91 static void frame_rect_down(int x, int y, int w, int h, Fl_Color bc)
  92 {
  93
  94         // Draw the outline around the perimeter of the box
  95         gleam_color(fl_darker(bc));
  96         fl_line(x, y, x + w, y); //Go across.
  97         fl_line(x, y + (h / 2), x, y + 1); //Go to top
  98         fl_line(x + w, y + (h / 2), x + w, y + 1); //Go to top
  99
 100         //gleam_color(bc);
 101         fl_line(x, y + h, x + w, y + h); //Go across again!
 102         fl_line(x, y + (h / 2), x, y + h - 1); //Go to top
 103         fl_line(x + w, y + (h / 2), x + w, y + h - 1); //Go to top
 104
 105 }
 106
 107 static void shade_rect_down(int x, int y, int w, int h, Fl_Color bc)
 108 {
 109
 110         gleam_color(bc);
 111         Fl_Color color = fl_color();
 112         fl_rectf(x, y, w, h);
 113         gleam_color(fl_color_average(bc, fl_darker(color), 0.65));
 114         fl_line(x, y + 1, x + w, y + 1);
 115         fl_line(x, y + 1, x, y + h - 2);
 116         gleam_color(fl_color_average(bc, fl_darker(color), 0.85));
 117         fl_line(x + 1, y + 2, x + w, y + 2);
 118         fl_line(x + 1, y + 2, x + 1, y + h - 2);
 119
 120 }
 121
 122 static void up_frame(int x, int y, int w, int h, Fl_Color c)
 123 {
 124         frame_rect_up(x, y, w - 1, h - 1, fl_darker(c));
 125 }
 126
 127 static void up_box(int x, int y, int w, int h, Fl_Color c)
 128 {
 129         shade_rect_up(x + 1, y, w - 2, h - 1, c);
 130         frame_rect_up(x, y, w - 1, h - 1, fl_darker(c));
 131         //draw the inner rect.
 132         frame_rect(x + 1, y + 1, w - 3, h - 3, fl_color_average(c, FL_WHITE, .25f));
 133
 134 }
 135
 136 static void down_frame(int x, int y, int w, int h, Fl_Color c)
 137 {
 138         frame_rect_down(x, y, w - 1, h - 1, fl_darker(c));
 139 }
 140
 141 static void down_box(int x, int y, int w, int h, Fl_Color c)
 142 {
 143         shade_rect_down(x + 1, y, w - 2, h,
 144                         FL_BACKGROUND_COLOR == c || FL_BACKGROUND2_COLOR == c
 145                         ? fl_darker(c)
 146                         : c );
 147         down_frame(x, y, w, h, fl_darker(c));
 148         //draw the inner rect.
 149         //frame_rect(x + 1, y + 1, w - 3, h - 3, fl_color_average(c, FL_BLACK, .65));
 150 }
 151
 152
 153 static void border_box(int x, int y, int w, int h, Fl_Color c)
 154 {
 155     gleam_color(c);
 156     fl_rectf(x,y,w,h);
 157     gleam_color(fl_darker(c));
 158     fl_rect(x+1,y+1,w-2,h-2);
 159 }
 160
 161 static void
 162 init_theme ( void )
 163 {
 164     /* replace the gtk+ boxes... (is there a better way?) */
 165     Fl::set_boxtype(  FL_UP_BOX,         up_box,           2,2,4,4 );
 166     Fl::set_boxtype(  FL_DOWN_BOX,       down_box,         2,2,3,3 );
 167     Fl::set_boxtype(  FL_THIN_UP_BOX,         up_box,           2,2,3,3 );
 168     Fl::set_boxtype(  FL_THIN_DOWN_BOX,       down_box,         2,2,3,3 );
 169     Fl::set_boxtype(  FL_UP_FRAME,       up_frame,         2,2,3,3 );
 170     Fl::set_boxtype(  FL_DOWN_FRAME,     down_frame,       2,2,3,3 );
 171     Fl::set_boxtype(  FL_ROUND_UP_BOX,   up_box,           2,2,3,3 );
 172     Fl::set_boxtype(  FL_ROUND_DOWN_BOX, down_box,         2,2,3,3 );
 173     Fl::set_boxtype(  FL_BORDER_BOX,       border_box,      1,1,2,2 );
 174 }
 175
 176 void
 177 init_gleam_theme ( void )
 178 {
 179     Fl_Theme *t = new Fl_Theme( "Gleam", "", "", init_theme );
 180
 181     Fl_Theme::add( t );
 182 }