* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#include "ruler.h"
+#include "ruler.hpp"
-#include "view.h"
-#include "pv/util.h"
+#include "view.hpp"
+#include "pv/util.hpp"
#include <extdef.h>
const int Ruler::RulerHeight = 30;
const int Ruler::MinorTickSubdivision = 4;
-const int Ruler::ScaleUnits[3] = {1, 2, 5};
const int Ruler::HoverArrowSize = 5;
{
setMouseTracking(true);
- connect(&_view, SIGNAL(hover_point_changed()),
+ connect(&view_, SIGNAL(hover_point_changed()),
this, SLOT(hover_point_changed()));
}
void Ruler::paintEvent(QPaintEvent*)
{
- const double SpacingIncrement = 32.0f;
- const double MinValueSpacing = 32.0f;
const int ValueMargin = 3;
QPainter p(this);
p.setRenderHint(QPainter::Antialiasing);
- double min_width = SpacingIncrement, typical_width;
- double tick_period;
- unsigned int prefix;
-
- // Find tick spacing, and number formatting that does not cause
- // value to collide.
- do
- {
- const double min_period = _view.scale() * min_width;
-
- const int order = (int)floorf(log10f(min_period));
- const double order_decimal = pow(10.0, order);
-
- unsigned int unit = 0;
-
- do
- {
- tick_period = order_decimal * ScaleUnits[unit++];
- } while (tick_period < min_period && unit < countof(ScaleUnits));
-
- prefix = (order - pv::util::FirstSIPrefixPower) / 3;
-
- typical_width = p.boundingRect(0, 0, INT_MAX, INT_MAX,
- AlignLeft | AlignTop, pv::util::format_time(_view.offset(),
- prefix)).width() + MinValueSpacing;
-
- min_width += SpacingIncrement;
-
- } while(typical_width > tick_period / _view.scale());
+ const double tick_period = view_.tick_period();
+ const unsigned int prefix = view_.tick_prefix();
const int text_height = p.boundingRect(0, 0, INT_MAX, INT_MAX,
AlignLeft | AlignTop, "8").height();
const double minor_tick_period = tick_period / MinorTickSubdivision;
const double first_major_division =
- floor(_view.offset() / tick_period);
+ floor(view_.offset() / tick_period);
const double first_minor_division =
- ceil(_view.offset() / minor_tick_period);
+ ceil(view_.offset() / minor_tick_period);
const double t0 = first_major_division * tick_period;
int division = (int)round(first_minor_division -
do {
const double t = t0 + division * minor_tick_period;
- x = (t - _view.offset()) / _view.scale();
+ x = (t - view_.offset()) / view_.scale();
if (division % MinorTickSubdivision == 0)
{
void Ruler::draw_hover_mark(QPainter &p)
{
- const int x = _view.hover_point().x();
+ const int x = view_.hover_point().x();
if (x == -1)
return;