CalcView::CalcView(BRect frame, rgb_color rgbBaseColor, BMessage* settings)
:
BView(frame, "DeskCalc", B_FOLLOW_ALL_SIDES,
B_WILL_DRAW | B_FULL_UPDATE_ON_RESIZE | B_FRAME_EVENTS),
fColumns(5),
fRows(4),
fBaseColor(rgbBaseColor),
fExpressionBGColor((rgb_color){ 0, 0, 0, 255 }),
fWidth(1),
fHeight(1),
fKeypadDescription(strdup(kKeypadDescriptionBasic)),
fKeypad(NULL),
#ifdef __HAIKU__
fCalcIcon(new BBitmap(BRect(0, 0, 15, 15), 0, B_RGBA32)),
#else
fCalcIcon(new BBitmap(BRect(0, 0, 15, 15), 0, B_CMAP8)),
#endif
fPopUpMenu(NULL),
fAutoNumlockItem(NULL),
fAudioFeedbackItem(NULL),
fOptions(new CalcOptions())
{
// create expression text view
fExpressionTextView = new ExpressionTextView(_ExpressionRect(), this);
AddChild(fExpressionTextView);
// read data from archive
_LoadSettings(settings);
// tell the app server not to erase our b/g
SetViewColor(B_TRANSPARENT_32_BIT);
// parse calculator description
_ParseCalcDesc(fKeypadDescription);
// colorize based on base color.
_Colorize();
// Fetch the calc icon for compact view
_FetchAppIcon(fCalcIcon);
}
void
CalcView::SetKeypadMode(uint8 mode)
{
if (fOptions->keypad_mode == mode)
return;
BWindow* window = Window();
if (window == NULL)
return;
fOptions->keypad_mode = mode;
_MarkKeypadItems(fOptions->keypad_mode);
float width = fWidth;
float height = fHeight;
switch (fOptions->keypad_mode) {
case KEYPAD_MODE_COMPACT:
{
if (window->Bounds() == Frame()) {
window->SetSizeLimits(kMinimumWidthCompact,
kMaximumWidthCompact,
kMinimumHeightCompact,
kMaximumHeightCompact);
window->ResizeTo(width, height * kDisplayScaleY);
} else
ResizeTo(width, height * kDisplayScaleY);
break;
}
case KEYPAD_MODE_SCIENTIFIC:
{
free(fKeypadDescription);
fKeypadDescription = strdup(kKeypadDescriptionScientific);
fRows = 8;
_ParseCalcDesc(fKeypadDescription);
window->SetSizeLimits(kMinimumWidthScientific,
kMaximumWidthScientific,
kMinimumHeightScientific,
kMaximumHeightScientific);
if (width < kMinimumWidthScientific)
width = kMinimumWidthScientific;
if (width > kMaximumWidthScientific)
width = kMaximumWidthScientific;
if (height < kMinimumHeightScientific)
height = kMinimumHeightScientific;
if (height > kMaximumHeightScientific)
height = kMaximumHeightScientific;
ResizeTo(width, height);
break;
}
default: // KEYPAD_MODE_BASIC is the default
{
free(fKeypadDescription);
fKeypadDescription = strdup(kKeypadDescriptionBasic);
fRows = 4;
_ParseCalcDesc(fKeypadDescription);
window->SetSizeLimits(kMinimumWidthBasic, kMaximumWidthBasic,
kMinimumHeightBasic, kMaximumHeightBasic);
if (width < kMinimumWidthBasic)
width = kMinimumWidthBasic;
if (width > kMaximumWidthBasic)
width = kMaximumWidthBasic;
if (height < kMinimumHeightBasic)
height = kMinimumHeightBasic;
if (height > kMaximumHeightBasic)
height = kMaximumHeightBasic;
ResizeTo(width, height);
}
}
}
status_t
CalcView::_LoadSettings(BMessage* archive)
{
if (!archive)
return B_BAD_VALUE;
// record calculator description
const char* calcDesc;
if (archive->FindString("calcDesc", &calcDesc) < B_OK)
calcDesc = kKeypadDescriptionBasic;
// save calculator description for reference
free(fKeypadDescription);
fKeypadDescription = strdup(calcDesc);
// read grid dimensions
if (archive->FindInt16("cols", &fColumns) < B_OK)
fColumns = 5;
if (archive->FindInt16("rows", &fRows) < B_OK)
fRows = 4;
// read color scheme
const rgb_color* color;
ssize_t size;
if (archive->FindData("rgbBaseColor", B_RGB_COLOR_TYPE,
(const void**)&color, &size) < B_OK
|| size != sizeof(rgb_color)) {
fBaseColor = ui_color(B_PANEL_BACKGROUND_COLOR);
puts("Missing rgbBaseColor from CalcView archive!\n");
} else {
fBaseColor = *color;
}
if (archive->FindData("rgbDisplay", B_RGB_COLOR_TYPE,
(const void**)&color, &size) < B_OK
|| size != sizeof(rgb_color)) {
fExpressionBGColor = (rgb_color){ 0, 0, 0, 255 };
puts("Missing rgbBaseColor from CalcView archive!\n");
} else {
fExpressionBGColor = *color;
}
// load options
fOptions->LoadSettings(archive);
// load display text
const char* display;
if (archive->FindString("displayText", &display) < B_OK) {
puts("Missing expression text from CalcView archive.\n");
} else {
// init expression text
fExpressionTextView->SetText(display);
}
// load expression history
fExpressionTextView->LoadSettings(archive);
// parse calculator description
_ParseCalcDesc(fKeypadDescription);
// colorize based on base color.
_Colorize();
return B_OK;
}
