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Mouse drag scrolling for grid

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Originally committed to SVN as r64.
This commit is contained in:
Rodrigo Braz Monteiro 2006-02-18 22:44:12 +00:00
parent 2e88cd311b
commit f359462a44
1 changed files with 30 additions and 6 deletions
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36
core/base_grid.cpp
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@ -59,7 +59,7 @@ BaseGrid::BaseGrid(wxWindow* parent, wxWindowID id, const wxPoint& pos, const wx
lastRow = -1;
yPos = 0;
bmp = NULL;
holding = true;
holding = false;
// Set font
wxString fontname = Options.AsText(_T("Font Face"));
@ -436,16 +436,40 @@ void BaseGrid::OnMouseEvent(wxMouseEvent &event) {
bool alt = event.m_altDown;
bool ctrl = event.m_controlDown;
// Click type
bool click = event.ButtonDown(wxMOUSE_BTN_LEFT);
if (click) holding = true;
if (!event.ButtonIsDown(wxMOUSE_BTN_LEFT)) holding = false;
// Row that mouse is over
bool click = event.ButtonDown(wxMOUSE_BTN_LEFT);
int row = event.GetY()/lineHeight + yPos - 1;
if (holding && !click) {
row = MID(0,row,GetRows()-1);
}
bool validRow = row >= 0 && row < GetRows();
if (!validRow) row = -1;
// Click type
if (click && !holding && validRow) {
holding = true;
CaptureMouse();
}
if (!event.ButtonIsDown(wxMOUSE_BTN_LEFT) && holding) {
holding = false;
ReleaseMouse();
}
// Scroll to keep visible
if (holding) {
// Find direction
int minVis = yPos+1;
int maxVis = yPos+h/lineHeight-3;
int delta = 0;
if (row < minVis) delta = -1;
if (row > maxVis) delta = +1;
// Scroll
yPos = MID(0,yPos+delta*3,GetRows()+2 - h/lineHeight);
scrollBar->SetThumbPosition(yPos);
Refresh(false);
}
// Click
if ((click || holding) && validRow) {
// Toggle selected