Amebis/wxWidgets
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

added selecting-while-dragging

Browse Source 
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@20922 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Václav Slavík
2003-06-04 18:17:04 +00:00
parent 8ca3dfcdfa
commit 1338c59a02
4 changed files with 252 additions and 33 deletions
Download Patch File Download Diff File Expand all files Collapse all files

226
src/html/htmlwin.cpp
View File

@@ -33,10 +33,86 @@
#include "wx/html/htmlproc.h"
#include "wx/list.h"
#include "wx/clipbrd.h"
#include "wx/timer.h"
#include "wx/dcmemory.h"
#include "wx/arrimpl.cpp"
#include "wx/listimpl.cpp"
#if wxUSE_CLIPBOARD
// ----------------------------------------------------------------------------
// wxHtmlWinAutoScrollTimer: the timer used to generate a stream of scroll
// events when a captured mouse is held outside the window
// ----------------------------------------------------------------------------
class wxHtmlWinAutoScrollTimer : public wxTimer
{
public:
wxHtmlWinAutoScrollTimer(wxScrolledWindow *win,
wxEventType eventTypeToSend,
int pos, int orient)
{
m_win = win;
m_eventType = eventTypeToSend;
m_pos = pos;
m_orient = orient;
}
virtual void Notify();
private:
wxScrolledWindow *m_win;
wxEventType m_eventType;
int m_pos,
m_orient;
DECLARE_NO_COPY_CLASS(wxHtmlWinAutoScrollTimer)
};
void wxHtmlWinAutoScrollTimer::Notify()
{
// only do all this as long as the window is capturing the mouse
if ( wxWindow::GetCapture() != m_win )
{
Stop();
}
else // we still capture the mouse, continue generating events
{
// first scroll the window if we are allowed to do it
wxScrollWinEvent event1(m_eventType, m_pos, m_orient);
event1.SetEventObject(m_win);
if ( m_win->GetEventHandler()->ProcessEvent(event1) )
{
// and then send a pseudo mouse-move event to refresh the selection
wxMouseEvent event2(wxEVT_MOTION);
wxGetMousePosition(&event2.m_x, &event2.m_y);
// the mouse event coordinates should be client, not screen as
// returned by wxGetMousePosition
wxWindow *parentTop = m_win;
while ( parentTop->GetParent() )
parentTop = parentTop->GetParent();
wxPoint ptOrig = parentTop->GetPosition();
event2.m_x -= ptOrig.x;
event2.m_y -= ptOrig.y;
event2.SetEventObject(m_win);
// FIXME: we don't fill in the other members - ok?
m_win->GetEventHandler()->ProcessEvent(event2);
}
else // can't scroll further, stop
{
Stop();
}
}
}
#endif
//-----------------------------------------------------------------------------
// wxHtmlHistoryItem
//-----------------------------------------------------------------------------
@@ -95,6 +171,10 @@ void wxHtmlWindow::Init()
SetBorders(10);
m_selection = NULL;
m_makingSelection = false;
#if wxUSE_CLIPBOARD
m_timerAutoScroll = NULL;
#endif
m_backBuffer = NULL;
}
bool wxHtmlWindow::Create(wxWindow *parent, wxWindowID id,
@@ -113,6 +193,9 @@ bool wxHtmlWindow::Create(wxWindow *parent, wxWindowID id,
wxHtmlWindow::~wxHtmlWindow()
{
#if wxUSE_CLIPBOARD
StopAutoScrolling();
#endif
HistoryClear();
if (m_Cell) delete m_Cell;
@@ -121,6 +204,7 @@ wxHtmlWindow::~wxHtmlWindow()
delete m_FS;
delete m_History;
delete m_Processors;
delete m_backBuffer;
}
@@ -637,6 +721,7 @@ bool wxHtmlWindow::IsSelectionEnabled() const
}
#if wxUSE_CLIPBOARD
wxString wxHtmlWindow::SelectionToText()
{
if ( !m_selection )
@@ -666,7 +751,6 @@ wxString wxHtmlWindow::SelectionToText()
void wxHtmlWindow::CopySelection(ClipboardType t)
{
#if wxUSE_CLIPBOARD
if ( m_selection )
{
wxTheClipboard->UsePrimarySelection(t == Primary);
@@ -679,8 +763,8 @@ void wxHtmlWindow::CopySelection(ClipboardType t)
_("Copied to clipboard:\"%s\""), txt.c_str());
}
}
#endif
}
#endif
void wxHtmlWindow::OnLinkClicked(const wxHtmlLinkInfo& link)
@@ -705,25 +789,45 @@ void wxHtmlWindow::OnCellMouseHover(wxHtmlCell * WXUNUSED(cell),
// do nothing here
}
void wxHtmlWindow::OnDraw(wxDC& dc)
void wxHtmlWindow::OnEraseBackground(wxEraseEvent& event)
{
}
void wxHtmlWindow::OnPaint(wxPaintEvent& WXUNUSED(event))
{
wxPaintDC dc(this);
if (m_tmpCanDrawLocks > 0 || m_Cell == NULL) return;
int x, y;
wxRect rect = GetUpdateRegion().GetBox();
dc.SetMapMode(wxMM_TEXT);
dc.SetBackgroundMode(wxTRANSPARENT);
GetViewStart(&x, &y);
wxRect rect = GetUpdateRegion().GetBox();
wxSize sz = GetSize();
wxMemoryDC dcm;
if ( !m_backBuffer )
m_backBuffer = new wxBitmap(sz.x, sz.y);
dcm.SelectObject(*m_backBuffer);
dcm.SetBackground(wxBrush(GetBackgroundColour(), wxSOLID));
dcm.Clear();
PrepareDC(dcm);
dcm.SetMapMode(wxMM_TEXT);
dcm.SetBackgroundMode(wxTRANSPARENT);
wxHtmlRenderingInfo rinfo;
wxDefaultHtmlRenderingStyle rstyle;
rinfo.SetSelection(m_selection);
rinfo.SetStyle(&rstyle);
m_Cell->Draw(dc, 0, 0,
m_Cell->Draw(dcm, 0, 0,
y * wxHTML_SCROLL_STEP + rect.GetTop(),
y * wxHTML_SCROLL_STEP + rect.GetBottom(),
rinfo);
dcm.SetDeviceOrigin(0,0);
dc.Blit(0, rect.GetTop(),
sz.x, rect.GetBottom() - rect.GetTop() + 1,
&dcm,
0, rect.GetTop());
}
@@ -731,8 +835,19 @@ void wxHtmlWindow::OnDraw(wxDC& dc)
void wxHtmlWindow::OnSize(wxSizeEvent& event)
{
wxDELETE(m_backBuffer);
wxScrolledWindow::OnSize(event);
CreateLayout();
// Recompute selection if necessary:
if ( m_selection )
{
m_selection->Set(m_selection->GetFromCell(),
m_selection->GetToCell());
m_selection->ClearPrivPos();
}
Refresh();
}
@@ -762,6 +877,7 @@ void wxHtmlWindow::OnMouseDown(wxMouseEvent& event)
void wxHtmlWindow::OnMouseUp(wxMouseEvent& event)
{
#if wxUSE_CLIPBOARD
if ( m_makingSelection )
{
ReleaseMouse();
@@ -778,6 +894,7 @@ void wxHtmlWindow::OnMouseUp(wxMouseEvent& event)
return;
}
}
#endif
SetFocus();
if ( m_Cell )
@@ -884,14 +1001,8 @@ void wxHtmlWindow::OnIdle(wxIdleEvent& WXUNUSED(event))
m_selection->Set(wxPoint(x,y), selcell,
m_tmpSelFromPos, m_tmpSelFromCell);
}
{
wxClientDC dc(this);
m_selection->GetFromCell()->SetSelectionPrivPos(
dc, m_selection);
m_selection->GetToCell()->SetSelectionPrivPos(
dc, m_selection);
}
Refresh(); // FIXME - optimize!
m_selection->ClearPrivPos();
Refresh();
}
}
}
@@ -931,6 +1042,85 @@ void wxHtmlWindow::OnIdle(wxIdleEvent& WXUNUSED(event))
}
#if wxUSE_CLIPBOARD
void wxHtmlWindow::StopAutoScrolling()
{
if ( m_timerAutoScroll )
{
wxDELETE(m_timerAutoScroll);
}
}
void wxHtmlWindow::OnMouseEnter(wxMouseEvent& event)
{
StopAutoScrolling();
event.Skip();
}
void wxHtmlWindow::OnMouseLeave(wxMouseEvent& event)
{
// don't prevent the usual processing of the event from taking place
event.Skip();
// when a captured mouse leave a scrolled window we start generate
// scrolling events to allow, for example, extending selection beyond the
// visible area in some controls
if ( wxWindow::GetCapture() == this )
{
// where is the mouse leaving?
int pos, orient;
wxPoint pt = event.GetPosition();
if ( pt.x < 0 )
{
orient = wxHORIZONTAL;
pos = 0;
}
else if ( pt.y < 0 )
{
orient = wxVERTICAL;
pos = 0;
}
else // we're lower or to the right of the window
{
wxSize size = GetClientSize();
if ( pt.x > size.x )
{
orient = wxHORIZONTAL;
pos = GetVirtualSize().x / wxHTML_SCROLL_STEP;
}
else if ( pt.y > size.y )
{
orient = wxVERTICAL;
pos = GetVirtualSize().y / wxHTML_SCROLL_STEP;
}
else // this should be impossible
{
// but seems to happen sometimes under wxMSW - maybe it's a bug
// there but for now just ignore it
//wxFAIL_MSG( _T("can't understand where has mouse gone") );
return;
}
}
// only start the auto scroll timer if the window can be scrolled in
// this direction
if ( !HasScrollbar(orient) )
return;
delete m_timerAutoScroll;
m_timerAutoScroll = new wxHtmlWinAutoScrollTimer
(
this,
pos == 0 ? wxEVT_SCROLLWIN_LINEUP
: wxEVT_SCROLLWIN_LINEDOWN,
pos,
orient
);
m_timerAutoScroll->Start(50); // FIXME: make configurable
}
}
void wxHtmlWindow::OnKeyUp(wxKeyEvent& event)
{
if ( event.GetKeyCode() == 'C' && event.ControlDown() )
@@ -962,7 +1152,11 @@ BEGIN_EVENT_TABLE(wxHtmlWindow, wxScrolledWindow)
EVT_RIGHT_UP(wxHtmlWindow::OnMouseUp)
EVT_MOTION(wxHtmlWindow::OnMouseMove)
EVT_IDLE(wxHtmlWindow::OnIdle)
EVT_ERASE_BACKGROUND(wxHtmlWindow::OnEraseBackground)
EVT_PAINT(wxHtmlWindow::OnPaint)
#if wxUSE_CLIPBOARD
EVT_ENTER_WINDOW(wxHtmlWindow::OnMouseEnter)
EVT_LEAVE_WINDOW(wxHtmlWindow::OnMouseLeave)
EVT_KEY_UP(wxHtmlWindow::OnKeyUp)
EVT_MENU(wxID_COPY, wxHtmlWindow::OnCopy)
#endif