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wxMathPlot: Limited zooming and panning

This commit is contained in:
Maciej Suminski 2016-08-11 14:41:37 +02:00
parent f634cff206
commit 06463252d7
3 changed files with 72 additions and 15 deletions
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67
common/widgets/mathplot.cpp
View File

@ -1152,6 +1152,7 @@ mpWindow::mpWindow( wxWindow *parent, wxWindowID id, const wxPoint &pos, const w
m_buff_bmp = NULL;
m_enableDoubleBuffer = FALSE;
m_enableMouseNavigation = TRUE;
m_enableLimitedView = FALSE;
m_movingInfoLayer = NULL;
// Set margins to 0
m_marginTop = 0; m_marginRight = 0; m_marginBottom = 0; m_marginLeft = 0;
@ -1218,16 +1219,12 @@ void mpWindow::OnMouseWheel( wxMouseEvent &event )
if (event.m_controlDown)
{
// horizontal scroll
m_posX += changeUnitsX;
m_desiredXmax += changeUnitsX;
m_desiredXmin += changeUnitsX;
SetXView(m_posX + changeUnitsX, m_desiredXmax + changeUnitsX, m_desiredXmin + changeUnitsX);
}
else if(event.m_shiftDown)
{
// vertical scroll
m_posY -= changeUnitsY;
m_desiredYmax -= changeUnitsY;
m_desiredYmax -= changeUnitsY;
SetYView(m_posY - changeUnitsY, m_desiredYmax - changeUnitsY, m_desiredYmin - changeUnitsY);
}
else
{
@ -1266,13 +1263,11 @@ void mpWindow::OnMouseMove(wxMouseEvent &event)
double Ax_units = Ax / m_scaleX;
double Ay_units = -Ay / m_scaleY;
m_posX += Ax_units;
m_posY += Ay_units;
m_desiredXmax += Ax_units;
m_desiredXmin += Ax_units;
m_desiredYmax += Ay_units;
m_desiredYmin += Ay_units;
bool updateRequired = false;
updateRequired |= SetXView(m_posX + Ax_units, m_desiredXmax + Ax_units, m_desiredXmin + Ax_units);
updateRequired |= SetYView(m_posY + Ay_units, m_desiredYmax + Ay_units, m_desiredYmin + Ay_units);
if(updateRequired)
UpdateAll();
#ifdef MATHPLOT_DO_LOGGING
@ -1482,6 +1477,32 @@ void mpWindow::DoZoomOutYCalc (const int staticYpixel)
}
bool mpWindow::SetXView(double pos, double desiredMax, double desiredMin)
{
if(m_enableLimitedView && (desiredMax > m_maxX || desiredMin < m_minX))
return false;
m_posX = pos;
m_desiredXmax = desiredMax;
m_desiredXmin = desiredMin;
return true;
}
bool mpWindow::SetYView(double pos, double desiredMax, double desiredMin)
{
if(m_enableLimitedView && (desiredMax > m_maxY || desiredMin < m_minY))
return false;
m_posY = pos;
m_desiredYmax = desiredMax;
m_desiredYmin = desiredMin;
return true;
}
void mpWindow::ZoomIn(const wxPoint& centerPoint )
{
wxPoint c(centerPoint);
@ -1497,8 +1518,20 @@ void mpWindow::ZoomIn(const wxPoint& centerPoint )
double prior_layer_y = p2y( c.y );
// Zoom in:
m_scaleX = m_scaleX * zoomIncrementalFactor;
m_scaleY = m_scaleY * zoomIncrementalFactor;
const double MAX_SCALE = 1e6;
double newScaleX = m_scaleX * zoomIncrementalFactor;
double newScaleY = m_scaleY * zoomIncrementalFactor;
// Baaaaad things happen when you zoom in too much..
if(newScaleX <= MAX_SCALE && newScaleY <= MAX_SCALE)
{
m_scaleX = newScaleX;
m_scaleY = newScaleY;
}
else
{
return;
}
// Adjust the new m_posx/y:
m_posX = prior_layer_x - c.x / m_scaleX;
@ -1544,6 +1577,12 @@ void mpWindow::ZoomOut(const wxPoint& centerPoint )
m_desiredYmax = m_posY;
m_desiredYmin = m_posY - (m_scrY - m_marginTop - m_marginBottom) / m_scaleY; // m_desiredYmin = m_posY - m_scrY / m_scaleY;
if(m_enableLimitedView && (m_desiredXmin < m_minX || m_desiredXmin < m_minX
|| m_desiredXmax > m_maxX || m_desiredXmax > m_maxX))
{
Fit();
}
#ifdef MATHPLOT_DO_LOGGING
wxLogMessage(_("mpWindow::ZoomOut() prior coords: (%f,%f), new coords: (%f,%f) SHOULD BE EQUAL!!"), prior_layer_x,prior_layer_y, p2x(c.x),p2y(c.y));
#endif

1
eeschema/sim/sim_plot_panel.cpp
View File

@ -101,6 +101,7 @@ SIM_PLOT_PANEL::SIM_PLOT_PANEL( SIM_TYPE aType, wxWindow* parent, wxWindowID id,
m_axis_x( nullptr ), m_axis_y1( nullptr ), m_axis_y2( nullptr ), m_type( aType )
{
SetMargins( 10, 10, 10, 10 );
LimitView( true );
switch( m_type )
{

17
include/widgets/mathplot.h
View File

@ -1155,6 +1155,12 @@ class WXDLLIMPEXP_MATHPLOT mpWindow : public wxWindow
@return reference to axis colour used in theme */
const wxColour& GetAxesColour() { return m_axColour; };
/** Limit zooming & panning to the area used by the plots */
void LimitView( bool aEnable )
{
m_enableLimitedView = aEnable;
}
protected:
void OnPaint (wxPaintEvent &event); //!< Paint handler, will plot all attached layers
void OnSize (wxSizeEvent &event); //!< Size handler, will update scroll bar sizes
@ -1191,6 +1197,16 @@ class WXDLLIMPEXP_MATHPLOT mpWindow : public wxWindow
*/
virtual bool UpdateBBox();
/** Applies new X view coordinates depending on the settings
* \return true if the changes were applied
*/
virtual bool SetXView( double pos, double desiredMax, double desiredMin );
/** Applies new Y view coordinates depending on the settings
* \return true if the changes were applied
*/
virtual bool SetYView( double pos, double desiredMax, double desiredMin );
//wxList m_layers; //!< List of attached plot layers
wxLayerList m_layers; //!< List of attached plot layers
wxMenu m_popmenu; //!< Canvas' context menu
@ -1224,6 +1240,7 @@ class WXDLLIMPEXP_MATHPLOT mpWindow : public wxWindow
wxBitmap *m_buff_bmp; //!< For double buffering
bool m_enableDoubleBuffer; //!< For double buffering
bool m_enableMouseNavigation; //!< For pan/zoom with the mouse.
bool m_enableLimitedView;
wxPoint m_mouseMClick; //!< For the middle button "drag" feature
wxPoint m_mouseLClick; //!< Starting coords for rectangular zoom selection
bool m_enableScrollBars;