1 //*****************************************************************************
2 //
3 // File: ProgressBar.cpp
4 //
5 // Written by: David Ramsey and Daniel Switkin
6 //
7 // Copyright 1999, Be Incorporated
8 //
9 //*****************************************************************************
10
11
12 #include "ProgressBar.h"
13 #include "PulseApp.h"
14
15
ProgressBar(BRect r,char * name)16 ProgressBar::ProgressBar(BRect r, char *name) : BView(r, name, B_FOLLOW_NONE,
17 B_WILL_DRAW)
18 {
19 previous_value = current_value = 0;
20
21 // Create 20 segments
22 float height = (r.bottom - r.top) - 8;
23 for (int32 counter = 0; counter < 20; counter++) {
24 segments[counter].rect.Set(r.left + (counter * 7), r.top,
25 (r.left + (counter * 7) + 5), r.top + height);
26 segments[counter].rect.OffsetTo(BPoint((counter * 7) + 4, 4));
27 }
28 SetLowColor(255, 0, 0);
29 SetViewColor(B_TRANSPARENT_COLOR);
30 }
31
32
33 // New - real time updating of bar colors
34 void
UpdateColors(int32 color,bool fade)35 ProgressBar::UpdateColors(int32 color, bool fade)
36 {
37 unsigned char red = (color & 0xff000000) >> 24;
38 unsigned char green = (color & 0x00ff0000) >> 16;
39 unsigned char blue = (color & 0x0000ff00) >> 8;
40
41 if (fade) {
42 unsigned char red_base = red / 3;
43 unsigned char green_base = green / 3;
44 unsigned char blue_base = blue / 3;
45
46 for (int x = 0; x < 20; x++) {
47 segments[x].color.red = (uint8)(red_base + ((red - red_base)
48 * ((float)x / 19.0)));
49 segments[x].color.green = (uint8)(green_base
50 + ((green - green_base) * ((float)x / 19.0)));
51 segments[x].color.blue = (uint8)(blue_base + ((blue - blue_base)
52 * ((float)x / 19.0)));
53 segments[x].color.alpha = 0xff;
54 }
55 } else {
56 for (int x = 0; x < 20; x++) {
57 segments[x].color.red = red;
58 segments[x].color.green = green;
59 segments[x].color.blue = blue;
60 segments[x].color.alpha = 0xff;
61 }
62 }
63 Render(true);
64 }
65
66
67 void
AttachedToWindow()68 ProgressBar::AttachedToWindow()
69 {
70 Prefs *prefs = ((PulseApp *)be_app)->fPrefs;
71 UpdateColors(prefs->normal_bar_color, prefs->normal_fade_colors);
72 }
73
74
75 void
MouseDown(BPoint point)76 ProgressBar::MouseDown(BPoint point)
77 {
78 point = ConvertToParent(point);
79 Parent()->MouseDown(point);
80 }
81
82
83 void
Set(int32 value)84 ProgressBar::Set(int32 value)
85 {
86 // How many segments to light up
87 current_value = (int32)(value / 4.9);
88 if (current_value > 20)
89 current_value = 20;
90
91 Render(false);
92 }
93
94
95 // Draws the progress bar. If "all" is true the entire bar is redrawn rather
96 // than just the part that changed.
97 void
Render(bool all)98 ProgressBar::Render(bool all)
99 {
100 if (all) {
101 // Black border
102 BRect bounds = Bounds();
103 bounds.InsetBy(2, 2);
104 SetHighColor(0, 0, 0);
105 StrokeRect(bounds);
106 bounds.InsetBy(1, 1);
107 StrokeRect(bounds);
108
109 // Black dividers
110 float left = bounds.left;
111 BPoint start, end;
112 for (int x = 0; x < 19; x++) {
113 left += 7;
114 start.Set(left, bounds.top);
115 end.Set(left, bounds.bottom);
116 StrokeLine(start, end);
117 }
118
119 for (int x = 0; x < current_value; x++) {
120 SetHighColor(segments[x].color.red, segments[x].color.green,
121 segments[x].color.blue);
122 FillRect(segments[x].rect);
123 }
124
125 SetHighColor(75, 75, 75);
126 if (current_value < 20) {
127 for (int x = 19; x >= current_value; x--) {
128 FillRect(segments[x].rect);
129 }
130 }
131 } else if (current_value > previous_value) {
132 for (int x = previous_value; x < current_value; x++) {
133 SetHighColor(segments[x].color.red, segments[x].color.green,
134 segments[x].color.blue);
135 FillRect(segments[x].rect);
136 }
137 } else if (current_value < previous_value) {
138 SetHighColor(75, 75, 75);
139 for (int x = previous_value - 1; x >= current_value; x--) {
140 FillRect(segments[x].rect);
141 }
142 // Special case to make sure the lowest light gets turned off
143 if (current_value == 0) FillRect(segments[0].rect);
144 }
145
146 Sync();
147 previous_value = current_value;
148 }
149
150
151 void
Draw(BRect rect)152 ProgressBar::Draw(BRect rect)
153 {
154 // Add bevels
155 SetHighColor(dkgray, dkgray, dkgray);
156 BRect frame = Bounds();
157 StrokeLine(BPoint(frame.left, frame.top), BPoint(frame.right, frame.top));
158 StrokeLine(BPoint(frame.left, frame.top + 1), BPoint(frame.right,
159 frame.top + 1));
160 StrokeLine(BPoint(frame.left, frame.top), BPoint(frame.left,
161 frame.bottom));
162 StrokeLine(BPoint(frame.left + 1, frame.top),
163 BPoint(frame.left + 1, frame.bottom));
164
165 SetHighColor(ltgray, ltgray, ltgray);
166 StrokeLine(BPoint(frame.right-1, frame.top + 2),
167 BPoint(frame.right - 1, frame.bottom));
168 StrokeLine(BPoint(frame.right, frame.top + 1),
169 BPoint(frame.right, frame.bottom));
170 StrokeLine(BPoint(frame.left+1, frame.bottom - 1),
171 BPoint(frame.right - 1, frame.bottom - 1));
172 StrokeLine(BPoint(frame.left, frame.bottom),
173 BPoint(frame.right, frame.bottom));
174
175 Render(true);
176 }
177