src/servers/mail/ErrorLogWindow.cpp

   1 #include <ScrollView.h>
   2 #include <TextView.h>
   3 #include <String.h>
   4 #include <limits.h>
   5
   6 #include "ErrorLogWindow.h"
   7
   8 rgb_color white = {255,255,255,255};
   9 rgb_color notwhite = {255,255,200,255};
  10
  11 class Error : public BView {
  12         public:
  13                 Error(BRect rect,alert_type type,const char *tag,const char *message,bool timestamp,rgb_color bkg);
  14
  15                 void GetPreferredSize(float *width, float *height);
  16                 void Draw(BRect updateRect);
  17                 void FrameResized(float w, float h);
  18         private:
  19                 alert_type type;
  20 };
  21
  22 class ErrorPanel : public BView {
  23         public:
  24                 ErrorPanel(BRect rect) : BView(rect,"ErrorScrollPanel",B_FOLLOW_ALL_SIDES,B_DRAW_ON_CHILDREN | B_FRAME_EVENTS), alerts_displayed(0), add_next_at(0) {}
  25
  26                 void GetPreferredSize(float *width, float *height) {
  27                         *width = Bounds().Width();
  28                         *height = add_next_at;
  29                 }
  30
  31                 void TargetedByScrollView(BScrollView *scroll_view) { scroll = scroll_view; /*scroll->ScrollBar(B_VERTICAL)->SetRange(0,add_next_at);*/ }
  32                 void FrameResized(float w, float /*h*/) {
  33                         if (w == Frame().Width())
  34                                 return;
  35
  36                         add_next_at = 0;
  37                         for (int32 i = 0; i < CountChildren(); i++) {
  38                                 ChildAt(i)->MoveTo(BPoint(0,add_next_at));
  39                                 ChildAt(i)->ResizeTo(w,ChildAt(i)->Frame().Height());
  40                                 ChildAt(i)->ResizeToPreferred();
  41                                 add_next_at += ChildAt(i)->Bounds().Height();
  42                         }
  43                         ResizeTo(w,add_next_at);
  44                 }
  45
  46                 int32 alerts_displayed;
  47                 float add_next_at;
  48                 BScrollView *scroll;
  49 };
  50
  51
  52 //      #pragma mark -
  53
  54
  55 ErrorLogWindow::ErrorLogWindow(BRect rect, const char *name, window_type type)
  56         :
  57         BWindow(rect, name, type, B_NO_WORKSPACE_ACTIVATION | B_NOT_MINIMIZABLE
  58                 | B_ASYNCHRONOUS_CONTROLS),
  59         fIsRunning(false)
  60 {
  61         rect = Bounds();
  62         rect.right -= B_V_SCROLL_BAR_WIDTH;
  63
  64         view = new ErrorPanel(rect);
  65         AddChild(new BScrollView("ErrorScroller", view, B_FOLLOW_ALL_SIDES, 0, false, true));
  66         Show();
  67         Hide();
  68 }
  69
  70
  71 void
  72 ErrorLogWindow::AddError(alert_type type, const char *message, const char *tag, bool timestamp)
  73 {
  74         ErrorPanel *panel = (ErrorPanel *)view;
  75
  76         // first call?
  77         if (!fIsRunning) {
  78                 fIsRunning = true;
  79                 Show();
  80         }
  81
  82         Lock();
  83
  84         Error *newError = new Error(BRect(0, panel->add_next_at, panel->Bounds().right,
  85                 panel->add_next_at + 1), type, tag, message, timestamp,
  86                 (panel->alerts_displayed++ % 2 == 0) ? white : notwhite);
  87
  88         newError->ResizeToPreferred();
  89         panel->add_next_at += newError->Bounds().Height();
  90         panel->AddChild(newError);
  91         panel->ResizeToPreferred();
  92
  93         if (panel->add_next_at > Frame().Height()) {
  94                 BScrollBar *bar = panel->scroll->ScrollBar(B_VERTICAL);
  95
  96                 bar->SetRange(0, panel->add_next_at - Frame().Height());
  97                 bar->SetSteps(1, Frame().Height());
  98                 bar->SetProportion(Frame().Height() / panel->add_next_at);
  99         } else
 100                 panel->scroll->ScrollBar(B_VERTICAL)->SetRange(0,0);
 101
 102         if (IsHidden())
 103                 Show();
 104
 105         Unlock();
 106 }
 107
 108
 109 bool
 110 ErrorLogWindow::QuitRequested()
 111 {
 112         Hide();
 113
 114         while (view->CountChildren() != 0) {
 115                 BView* child = view->ChildAt(0);
 116                 view->RemoveChild(child);
 117                 delete child;
 118         }
 119
 120         ErrorPanel *panel = (ErrorPanel *)(view);
 121         panel->add_next_at = 0;
 122         panel->alerts_displayed = 0;
 123
 124         view->ResizeToPreferred();
 125         return false;
 126 }
 127
 128
 129 void
 130 ErrorLogWindow::FrameResized(float newWidth, float newHeight)
 131 {
 132         ErrorPanel *panel = (ErrorPanel *)view;
 133         panel->ResizeTo(newWidth, panel->add_next_at);
 134         panel->FrameResized(newWidth - B_V_SCROLL_BAR_WIDTH, panel->add_next_at);
 135         panel->Invalidate();
 136
 137         if (panel->add_next_at > newHeight) {
 138                 BScrollBar *bar = panel->scroll->ScrollBar(B_VERTICAL);
 139
 140                 bar->SetRange(0, panel->add_next_at - Frame().Height());
 141                 bar->SetSteps(1, Frame().Height());
 142                 bar->SetProportion(Frame().Height() / panel->add_next_at);
 143         } else
 144                 panel->scroll->ScrollBar(B_VERTICAL)->SetRange(0,0);
 145 }
 146
 147
 148 //      #pragma mark -
 149
 150
 151 Error::Error(BRect rect, alert_type atype, const char *tag, const char *message,
 152         bool timestamp,rgb_color bkg)
 153         :
 154         BView(rect,"error",B_FOLLOW_LEFT | B_FOLLOW_RIGHT
 155                 | B_FOLLOW_TOP,B_NAVIGABLE | B_WILL_DRAW | B_FRAME_EVENTS),
 156         type(atype)
 157 {
 158         SetViewColor(bkg);
 159         SetLowColor(bkg);
 160
 161         text_run_array array;
 162         array.count = 1;
 163         array.runs[0].offset = 0;
 164         array.runs[0].font = *be_bold_font;
 165         array.runs[0].color = HighColor();
 166
 167         BString msgString(message);
 168         msgString.RemoveAll("\r");
 169
 170         BTextView *view = new BTextView(BRect(20, 0, rect.Width(), rect.Height()),
 171                 "error_display", BRect(0,3,rect.Width() - 20 - 3, LONG_MAX),
 172                 B_FOLLOW_ALL_SIDES);
 173         view->SetLowColor(bkg);
 174         view->SetViewColor(bkg);
 175         view->SetText(msgString.String());
 176         view->MakeSelectable(true);
 177         view->SetStylable(true);
 178         view->MakeEditable(false);
 179
 180         if (tag != NULL) {
 181                 BString tagString(tag);
 182                 tagString += " ";
 183                 view->Insert(0, tagString.String(), tagString.Length(), &array);
 184         }
 185
 186         if (timestamp) {
 187                 array.runs[0].color = tint_color(ui_color(B_PANEL_BACKGROUND_COLOR),B_DARKEN_2_TINT);
 188                 array.runs[0].font.SetSize(9);
 189                 time_t thetime = time(NULL);
 190                 BString atime = asctime(localtime(&thetime));
 191                 atime.Prepend(" [");
 192                 atime.RemoveAll("\n");
 193                 atime.Append("]");
 194                 view->Insert(view->TextLength(),atime.String(),atime.Length(),&array);
 195         }
 196
 197         float height,width;
 198         width = view->Frame().Width();
 199         height = view->TextHeight(0,view->CountLines()) + 3;
 200         view->ResizeTo(width,height);
 201         AddChild(view);
 202 }
 203
 204
 205 void
 206 Error::GetPreferredSize(float *width, float *height)
 207 {
 208         BTextView *view = static_cast<BTextView *>(FindView("error_display"));
 209
 210         *width = view->Frame().Width() + 20;
 211         *height = view->TextHeight(0, INT32_MAX) + 3;
 212 }
 213
 214
 215 void
 216 Error::Draw(BRect updateRect)
 217 {
 218         FillRect(updateRect, B_SOLID_LOW);
 219 }
 220
 221
 222 void
 223 Error::FrameResized(float w, float h)
 224 {
 225         BTextView *view = static_cast<BTextView *>(FindView("error_display"));
 226
 227         view->ResizeTo(w - 20, h);
 228         view->SetTextRect(BRect(0, 3, w - 20, h));
 229 }