1 //
2 // pwrmeter.cxx
3 //
4 // PWRmeter bar widget routines.
5 //
6 // A part of the fldigi.
7 //
8 // This library is free software; you can redistribute it and/or
9 // modify it under the terms of the GNU Library General Public
10 // License as published by the Free Software Foundation; either
11 // version 2 of the License, or (at your option) any later version.
12 //
13 // This library is distributed in the hope that it will be useful,
14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 // Library General Public License for more details.
17 //
18 // You should have received a copy of the GNU General Public License
19 // along with this program. If not, see <http://www.gnu.org/licenses/>.
20 // ----------------------------------------------------------------------------
21
22 #include <config.h>
23 #include <cmath>
24
25 #include <FL/Fl.H>
26 #include <FL/fl_draw.H>
27
28 #include "pwrmeter.h"
29
30 //
31 // pwrmeter is a pwrmeter bar widget based off Fl_Widget that shows a
32 // standard pwrmeter bar in horizontal format
33
draw()34 void PWRmeter::draw()
35 {
36 if (select_ == 4) select_auto();
37
38 sval = round(meter_width * (value_) / (maximum_));
39 if (sval > meter_width) sval = meter_width;
40 if (sval < 0) sval = 0;
41
42 // Draw the box and label...
43 draw_box();
44 draw_box(box(), tx, ty, tw, th, bgnd_);
45 if (sval > 0)
46 draw_box(FL_FLAT_BOX,
47 tx + sx, ty + 2,
48 sval,
49 th - 4,
50 fgnd_);
51 labelcolor(scale_color);
52 draw_label();
53 }
54
select_25W()55 void PWRmeter::select_25W()
56 {
57 maximum_ = 25;
58 label(W25_face);
59 fl_font(FL_HELVETICA, labelsize());
60 meter_width = fl_width(W25_face);
61 sx = (tw - meter_width) / 2 + fl_width("|") / 2;
62 meter_width -= fl_width("|");
63 }
64
select_50W()65 void PWRmeter::select_50W()
66 {
67 maximum_ = 50;
68 label(W50_face);
69 fl_font(FL_HELVETICA, labelsize());
70 meter_width = fl_width(W50_face);
71 sx = (tw - meter_width) / 2 + fl_width("|") / 2;
72 meter_width -= fl_width("|");
73 }
74
select_100W()75 void PWRmeter::select_100W()
76 {
77 maximum_ = 100;
78 label(W100_face);
79 fl_font(FL_HELVETICA, labelsize());
80 meter_width = fl_width(W100_face);
81 sx = (tw - meter_width) / 2 + fl_width("|") / 2;
82 meter_width -= fl_width("|");
83 }
84
select_200W()85 void PWRmeter::select_200W()
86 {
87 maximum_ = 200;
88 label(W200_face);
89 fl_font(FL_HELVETICA, labelsize());
90 meter_width = fl_width(W200_face);
91 sx = (tw - meter_width) / 2 + fl_width("|") / 2;
92 meter_width -= fl_width("|");
93 }
94
select_auto()95 void PWRmeter::select_auto()
96 {
97 if (value_ <= 25.0) {
98 select_25W();
99 } else if (value_ <= 50.0) {
100 select_50W();
101 } else if (value_ <= 100) {
102 select_100W();
103 } else {
104 select_200W();
105 }
106 redraw();
107 }
108
select(int sel)109 void PWRmeter::select( int sel ) {
110 switch (sel) {
111 case P25:
112 select_25W();
113 select_ = 0;
114 break;
115 case P50:
116 select_50W();
117 select_ = 1;
118 break;
119 case P100:
120 select_100W();
121 select_ = 2;
122 break;
123 case P200:
124 select_200W();
125 select_ = 3;
126 break;
127 case AUTO:
128 default:
129 select_auto();
130 select_ = 4;
131 }
132 redraw();
133 }
134
135 const char * PWRmeter::W25_face = "| : : : : | : : : : | : : : : | : : : : | : : : 25|";
136 const char * PWRmeter::W50_face = "| : | : | : | : | : 50|";
137 const char * PWRmeter::W100_face = "| | | | | | | | | | 100|";
138 const char * PWRmeter::W200_face = "| : | : | : | : 200|";
139
PWRmeter(int X,int Y,int W,int H,const char * l)140 PWRmeter::PWRmeter(int X, int Y, int W, int H, const char* l)
141 : Fl_Widget(X, Y, W, H, "")
142 {
143 align(FL_ALIGN_INSIDE);
144 box(FL_DOWN_BOX);
145 bgnd_ = FL_BACKGROUND2_COLOR;
146 fgnd_ = FL_GREEN;
147 scale_color = FL_BLACK;
148
149 maximum_ = 100.0;
150 value_ = 0.0;
151
152 select_ = 2; // 100 W scale
153
154 // Get the box borders...
155 bx = Fl::box_dx(box());
156 by = Fl::box_dy(box());
157 bw = Fl::box_dw(box());
158 bh = Fl::box_dh(box());
159
160 tx = X + bx;
161 tw = W - bw;
162 ty = Y + by;
163 th = H - bh;
164
165 static int fsize = 6;
166 fl_font(FL_HELVETICA, fsize);
167 meter_width = fl_width(W100_face);
168 while ((meter_width < tw) && (fl_height() < th)) {
169 fsize++;
170 fl_font(FL_HELVETICA, fsize);
171 meter_width = fl_width(W100_face);
172 }
173 fsize--;
174 fl_font(FL_HELVETICA, fsize);
175 meter_width = fl_width(W100_face);
176
177 meter_height = fl_height();
178 label(W100_face);
179 labelfont(FL_HELVETICA);
180 labelsize(fsize);
181 labelcolor(scale_color);
182
183 sx = (tw - meter_width) / 2 + fl_width("|") / 2;
184
185 meter_width -= fl_width("|");
186 }
187
resize(int X,int Y,int W,int H)188 void PWRmeter::resize(int X, int Y, int W, int H) {
189 Fl_Widget::resize(X,Y,W,H);
190
191 bx = Fl::box_dx(box());
192 by = Fl::box_dy(box());
193 bw = Fl::box_dw(box());
194 bh = Fl::box_dh(box());
195
196 tx = X + bx;
197 tw = W - bw;
198 ty = Y + by;
199 th = H - bh;
200
201 const char *face;
202 switch (select_) {
203 case P25:
204 face = W25_face;
205 break;
206 case P50:
207 face = W50_face;
208 break;
209 case P100:
210 face = W100_face;
211 break;
212 case P200:
213 face = W200_face;
214 break;
215 case AUTO:
216 default:
217 face = W25_face;
218 }
219
220 static int fsize = 6;
221 fl_font(FL_HELVETICA, fsize);
222 meter_width = fl_width(face);
223 while ((meter_width < tw) && (fl_height() < th)) {
224 fsize++;
225 fl_font(FL_HELVETICA, fsize);
226 meter_width = fl_width(face);
227 }
228 fsize--;
229 fl_font(FL_HELVETICA, fsize);
230 meter_width = fl_width(face);
231
232 meter_height = fl_height();
233 label(face);
234 labelfont(FL_HELVETICA);
235 labelsize(fsize);
236 labelcolor(scale_color);
237
238 sx = (tw - meter_width) / 2 + fl_width("|") / 2;
239 meter_width -= fl_width("|");
240
241 }
242
handle(int event)243 int PWRmeter::handle(int event)
244 {
245 if (Fl::event_inside( this )) {
246 if (event == FL_RELEASE) {
247 do_callback();
248 return 1;
249 }
250 }
251 return 0;
252 }
253
254 //
255 // End of PWRmeter.cxx
256 //
257