1 /* 2 * Copyright 2001-2009, Haiku. 3 * Copyright 2002, Thomas Kurschel. 4 * Distributed under the terms of the MIT License. 5 * 6 * Authors: 7 * Rafael Romo 8 * Thomas Kurschel 9 * Axel Dörfler, axeld@pinc-software.de 10 */ 11 12 13 #include "MonitorView.h" 14 15 #include <stdio.h> 16 17 #include <Catalog.h> 18 #include <Locale.h> 19 #include <Roster.h> 20 #include <Screen.h> 21 22 #include "Constants.h" 23 24 #undef B_TRANSLATION_CONTEXT 25 #define B_TRANSLATION_CONTEXT "Monitor View" 26 27 28 MonitorView::MonitorView(BRect rect, const char *name, int32 width, int32 height) 29 : BView(rect, name, B_FOLLOW_ALL, B_WILL_DRAW | B_FULL_UPDATE_ON_RESIZE), 30 fMaxWidth(1920), 31 fMaxHeight(1200), 32 fWidth(width), 33 fHeight(height), 34 fDPI(0) 35 { 36 BScreen screen(B_MAIN_SCREEN_ID); 37 fDesktopColor = screen.DesktopColor(current_workspace()); 38 } 39 40 41 MonitorView::~MonitorView() 42 { 43 } 44 45 46 void 47 MonitorView::AttachedToWindow() 48 { 49 SetViewColor(B_TRANSPARENT_COLOR); 50 if (Parent()) 51 fBackgroundColor = Parent()->ViewColor(); 52 else 53 fBackgroundColor = ui_color(B_PANEL_BACKGROUND_COLOR); 54 55 _UpdateDPI(); 56 } 57 58 59 void 60 MonitorView::MouseDown(BPoint point) 61 { 62 be_roster->Launch(kBackgroundsSignature); 63 } 64 65 66 void 67 MonitorView::Draw(BRect updateRect) 68 { 69 rgb_color darkColor = {160, 160, 160, 255}; 70 rgb_color blackColor = {0, 0, 0, 255}; 71 rgb_color redColor = {228, 0, 0, 255}; 72 rgb_color whiteColor = {255, 255, 255, 255}; 73 BRect outerRect = _MonitorBounds(); 74 75 SetHighColor(fBackgroundColor); 76 FillRect(updateRect); 77 78 SetDrawingMode(B_OP_OVER); 79 80 // frame & background 81 82 SetHighColor(darkColor); 83 FillRoundRect(outerRect, 3.0, 3.0); 84 85 SetHighColor(blackColor); 86 StrokeRoundRect(outerRect, 3.0, 3.0); 87 88 SetHighColor(fDesktopColor); 89 90 BRect innerRect(outerRect.InsetByCopy(4, 4)); 91 FillRoundRect(innerRect, 2.0, 2.0); 92 93 SetHighColor(blackColor); 94 StrokeRoundRect(innerRect, 2.0, 2.0); 95 96 SetDrawingMode(B_OP_COPY); 97 98 // power light 99 100 SetHighColor(redColor); 101 BPoint powerPos(outerRect.left + 5, outerRect.bottom - 2); 102 StrokeLine(powerPos, BPoint(powerPos.x + 2, powerPos.y)); 103 104 // DPI 105 106 if (fDPI == 0) 107 return; 108 109 font_height fontHeight; 110 GetFontHeight(&fontHeight); 111 float height = ceilf(fontHeight.ascent + fontHeight.descent); 112 113 char text[64]; 114 snprintf(text, sizeof(text), B_TRANSLATE("%ld dpi"), fDPI); 115 116 float width = StringWidth(text); 117 if (width > innerRect.Width() || height > innerRect.Height()) 118 return; 119 120 SetLowColor(fDesktopColor); 121 SetHighColor(whiteColor); 122 123 DrawString(text, BPoint(innerRect.left + (innerRect.Width() - width) / 2, 124 innerRect.top + fontHeight.ascent + (innerRect.Height() - height) / 2)); 125 } 126 127 128 void 129 MonitorView::SetResolution(int32 width, int32 height) 130 { 131 if (fWidth == width && fHeight == height) 132 return; 133 134 fWidth = width; 135 fHeight = height; 136 137 _UpdateDPI(); 138 Invalidate(); 139 } 140 141 142 void 143 MonitorView::SetMaxResolution(int32 width, int32 height) 144 { 145 if (fMaxWidth == width && fMaxHeight == height) 146 return; 147 148 fMaxWidth = width; 149 fMaxHeight = height; 150 151 Invalidate(); 152 } 153 154 155 void 156 MonitorView::MessageReceived(BMessage* message) 157 { 158 switch (message->what) { 159 case UPDATE_DESKTOP_MSG: 160 { 161 int32 width, height; 162 if (message->FindInt32("width", &width) == B_OK 163 && message->FindInt32("height", &height) == B_OK) 164 SetResolution(width, height); 165 break; 166 } 167 168 case UPDATE_DESKTOP_COLOR_MSG: 169 { 170 BScreen screen(Window()); 171 rgb_color color = screen.DesktopColor(current_workspace()); 172 if (color != fDesktopColor) { 173 fDesktopColor = color; 174 Invalidate(); 175 } 176 break; 177 } 178 179 default: 180 BView::MessageReceived(message); 181 break; 182 } 183 } 184 185 186 BRect 187 MonitorView::_MonitorBounds() 188 { 189 float maxWidth = Bounds().Width(); 190 float maxHeight = Bounds().Height(); 191 if (maxWidth / maxHeight > (float)fMaxWidth / fMaxHeight) 192 maxWidth = maxHeight / fMaxHeight * fMaxWidth; 193 else 194 maxHeight = maxWidth / fMaxWidth * fMaxHeight; 195 196 float factorX = (float)fWidth / fMaxWidth; 197 float factorY = (float)fHeight / fMaxHeight; 198 199 if (factorX > factorY && factorX > 1) { 200 factorY /= factorX; 201 factorX = 1; 202 } else if (factorY > factorX && factorY > 1) { 203 factorX /= factorY; 204 factorY = 1; 205 } 206 207 float width = maxWidth * factorX; 208 float height = maxHeight * factorY; 209 210 BSize size = Bounds().Size(); 211 return BRect((size.width - width) / 2, (size.height - height) / 2, 212 (size.width + width) / 2, (size.height + height) / 2); 213 } 214 215 216 void 217 MonitorView::_UpdateDPI() 218 { 219 fDPI = 0; 220 221 BScreen screen(Window()); 222 monitor_info info; 223 if (screen.GetMonitorInfo(&info) != B_OK) 224 return; 225 226 double x = info.width / 2.54; 227 double y = info.height / 2.54; 228 229 fDPI = (int32)round((fWidth / x + fHeight / y) / 2); 230 } 231