/////////////////////////////////////////////////////////////////////////////
-// Name: cursor.cpp
-// Purpose:
+// Name: src/gtk/cursor.cpp
+// Purpose: wxCursor implementation
// Author: Robert Roebling
-// Id: $Id$
// Copyright: (c) 1998 Robert Roebling
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-
-#ifdef __GNUG__
-#pragma implementation "cursor.h"
-#endif
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
#include "wx/cursor.h"
-#include "wx/utils.h"
-#include <gdk/gdk.h>
-
-//-----------------------------------------------------------------------------
-// idle system
-//-----------------------------------------------------------------------------
+#ifndef WX_PRECOMP
+ #include "wx/window.h"
+ #include "wx/image.h"
+ #include "wx/bitmap.h"
+ #include "wx/log.h"
+#endif // WX_PRECOMP
-extern void wxapp_install_idle_handler();
-extern bool g_isIdle;
+#include <gtk/gtk.h>
+#include "wx/gtk/private/object.h"
+#include "wx/gtk/private/gtk2-compat.h"
//-----------------------------------------------------------------------------
-// wxCursor
+// wxCursorRefData
//-----------------------------------------------------------------------------
-class wxCursorRefData: public wxObjectRefData
+class wxCursorRefData: public wxGDIRefData
{
- public:
-
+public:
wxCursorRefData();
- ~wxCursorRefData();
+ virtual ~wxCursorRefData();
+
+ virtual bool IsOk() const { return m_cursor != NULL; }
GdkCursor *m_cursor;
+
+private:
+ // There is no way to copy m_cursor so we can't implement a copy ctor
+ // properly.
+ wxDECLARE_NO_COPY_CLASS(wxCursorRefData);
};
wxCursorRefData::wxCursorRefData()
{
- m_cursor = (GdkCursor *) NULL;
+ m_cursor = NULL;
}
wxCursorRefData::~wxCursorRefData()
{
- if (m_cursor) gdk_cursor_destroy( m_cursor );
+ if (m_cursor)
+ {
+#ifdef __WXGTK3__
+ g_object_unref(m_cursor);
+#else
+ gdk_cursor_unref(m_cursor);
+#endif
+ }
}
+//-----------------------------------------------------------------------------
+// wxCursor
//-----------------------------------------------------------------------------
-#define M_CURSORDATA ((wxCursorRefData *)m_refData)
+#define M_CURSORDATA static_cast<wxCursorRefData*>(m_refData)
-IMPLEMENT_DYNAMIC_CLASS(wxCursor,wxObject)
+IMPLEMENT_DYNAMIC_CLASS(wxCursor, wxGDIObject)
+
+// used in the following two ctors
+extern GtkWidget *wxGetRootWindow();
wxCursor::wxCursor()
{
}
-wxCursor::wxCursor( int cursorId )
+#if wxUSE_IMAGE
+wxCursor::wxCursor(const wxString& cursor_file,
+ wxBitmapType type,
+ int hotSpotX, int hotSpotY)
+{
+ wxImage img;
+ if (!img.LoadFile(cursor_file, type))
+ return;
+
+ // eventually set the hotspot:
+ if (!img.HasOption(wxIMAGE_OPTION_CUR_HOTSPOT_X))
+ img.SetOption(wxIMAGE_OPTION_CUR_HOTSPOT_X, hotSpotX);
+ if (!img.HasOption(wxIMAGE_OPTION_CUR_HOTSPOT_Y))
+ img.SetOption(wxIMAGE_OPTION_CUR_HOTSPOT_Y, hotSpotY);
+
+ InitFromImage(img);
+}
+
+wxCursor::wxCursor(const wxImage& img)
+{
+ InitFromImage(img);
+}
+#endif
+
+wxCursor::wxCursor(const char bits[], int width, int height,
+ int hotSpotX, int hotSpotY,
+ const char maskBits[], const wxColour *fg, const wxColour *bg)
+{
+ m_refData = new wxCursorRefData;
+ if (hotSpotX < 0 || hotSpotX >= width)
+ hotSpotX = 0;
+ if (hotSpotY < 0 || hotSpotY >= height)
+ hotSpotY = 0;
+#ifdef __WXGTK3__
+ wxBitmap bitmap(bits, width, height);
+ if (maskBits)
+ bitmap.SetMask(new wxMask(wxBitmap(maskBits, width, height)));
+ GdkPixbuf* pixbuf = bitmap.GetPixbuf();
+ if (fg || bg)
+ {
+ const int stride = gdk_pixbuf_get_rowstride(pixbuf);
+ const int n_channels = gdk_pixbuf_get_n_channels(pixbuf);
+ guchar* data = gdk_pixbuf_get_pixels(pixbuf);
+ for (int j = 0; j < height; j++, data += stride)
+ {
+ guchar* p = data;
+ for (int i = 0; i < width; i++, p += n_channels)
+ {
+ if (p[0])
+ {
+ if (fg)
+ {
+ p[0] = fg->Red();
+ p[1] = fg->Green();
+ p[2] = fg->Blue();
+ }
+ }
+ else
+ {
+ if (bg)
+ {
+ p[0] = bg->Red();
+ p[1] = bg->Green();
+ p[2] = bg->Blue();
+ }
+ }
+ }
+ }
+ }
+ M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixbuf(gtk_widget_get_display(wxGetRootWindow()), pixbuf, hotSpotX, hotSpotY);
+#else
+ if (!maskBits)
+ maskBits = bits;
+ if (!fg)
+ fg = wxBLACK;
+ if (!bg)
+ bg = wxWHITE;
+
+ GdkBitmap* data = gdk_bitmap_create_from_data(
+ gtk_widget_get_window(wxGetRootWindow()), const_cast<char*>(bits), width, height);
+ GdkBitmap* mask = gdk_bitmap_create_from_data(
+ gtk_widget_get_window(wxGetRootWindow()), const_cast<char*>(maskBits), width, height);
+
+ M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixmap(
+ data, mask, fg->GetColor(), bg->GetColor(),
+ hotSpotX, hotSpotY );
+
+ g_object_unref (data);
+ g_object_unref (mask);
+#endif
+}
+
+wxCursor::~wxCursor()
+{
+}
+
+void wxCursor::InitFromStock( wxStockCursor cursorId )
{
m_refData = new wxCursorRefData();
GdkCursorType gdk_cur = GDK_LEFT_PTR;
switch (cursorId)
{
+#ifdef __WXGTK3__
+ case wxCURSOR_BLANK: gdk_cur = GDK_BLANK_CURSOR; break;
+#else
+ case wxCURSOR_BLANK:
+ {
+ const char bits[] = { 0 };
+ const GdkColor color = { 0, 0, 0, 0 };
+
+ GdkPixmap *pixmap = gdk_bitmap_create_from_data(NULL, bits, 1, 1);
+ M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixmap(pixmap,
+ pixmap,
+ &color,
+ &color,
+ 0, 0);
+ g_object_unref(pixmap);
+ }
+ return;
+#endif
+ case wxCURSOR_ARROW: // fall through to default
case wxCURSOR_DEFAULT: gdk_cur = GDK_LEFT_PTR; break;
- case wxCURSOR_HAND: gdk_cur = GDK_HAND1; break;
+ case wxCURSOR_RIGHT_ARROW: gdk_cur = GDK_RIGHT_PTR; break;
+ case wxCURSOR_HAND: gdk_cur = GDK_HAND2; break;
case wxCURSOR_CROSS: gdk_cur = GDK_CROSSHAIR; break;
case wxCURSOR_SIZEWE: gdk_cur = GDK_SB_H_DOUBLE_ARROW; break;
case wxCURSOR_SIZENS: gdk_cur = GDK_SB_V_DOUBLE_ARROW; break;
+ case wxCURSOR_ARROWWAIT:
case wxCURSOR_WAIT:
case wxCURSOR_WATCH: gdk_cur = GDK_WATCH; break;
case wxCURSOR_SIZING: gdk_cur = GDK_SIZING; break;
case wxCURSOR_BASED_ARROW_UP: gdk_cur = GDK_BASED_ARROW_UP; break;
case wxCURSOR_BASED_ARROW_DOWN: gdk_cur = GDK_BASED_ARROW_DOWN; break;
*/
+
default:
wxFAIL_MSG(wxT("unsupported cursor type"));
// will use the standard one
-
- case wxCURSOR_ARROW:
break;
}
M_CURSORDATA->m_cursor = gdk_cursor_new( gdk_cur );
}
-wxCursor::wxCursor( const wxCursor &cursor )
-{
- Ref( cursor );
-}
+#if wxUSE_IMAGE
-wxCursor::~wxCursor()
+void wxCursor::InitFromImage( const wxImage & image )
{
+ const int w = image.GetWidth();
+ const int h = image.GetHeight();
+ const guchar* alpha = image.GetAlpha();
+ const bool hasMask = image.HasMask();
+ int hotSpotX = image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_X);
+ int hotSpotY = image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_Y);
+ if (hotSpotX < 0 || hotSpotX > w) hotSpotX = 0;
+ if (hotSpotY < 0 || hotSpotY > h) hotSpotY = 0;
+ GdkPixbuf* pixbuf = gdk_pixbuf_new_from_data(image.GetData(), GDK_COLORSPACE_RGB, false, 8, w, h, w * 3, NULL, NULL);
+ if (alpha || hasMask)
+ {
+ guchar r = 0, g = 0, b = 0;
+ if (hasMask)
+ {
+ r = image.GetMaskRed();
+ g = image.GetMaskGreen();
+ b = image.GetMaskBlue();
+ }
+ GdkPixbuf* pixbuf0 = pixbuf;
+ pixbuf = gdk_pixbuf_add_alpha(pixbuf, hasMask, r, g, b);
+ g_object_unref(pixbuf0);
+ if (alpha)
+ {
+ guchar* d = gdk_pixbuf_get_pixels(pixbuf);
+ const int stride = gdk_pixbuf_get_rowstride(pixbuf);
+ for (int j = 0; j < h; j++, d += stride)
+ for (int i = 0; i < w; i++, alpha++)
+ if (d[4 * i + 3])
+ d[4 * i + 3] = *alpha;
+ }
+ }
+ m_refData = new wxCursorRefData;
+ M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixbuf(gtk_widget_get_display(wxGetRootWindow()), pixbuf, hotSpotX, hotSpotY);
+ g_object_unref(pixbuf);
}
-wxCursor& wxCursor::operator = ( const wxCursor& cursor )
-{
- if (*this == cursor)
- return (*this);
-
- Ref( cursor );
-
- return *this;
-}
+#endif // wxUSE_IMAGE
-bool wxCursor::operator == ( const wxCursor& cursor ) const
-{
- return m_refData == cursor.m_refData;
-}
-
-bool wxCursor::operator != ( const wxCursor& cursor ) const
+GdkCursor *wxCursor::GetCursor() const
{
- return m_refData != cursor.m_refData;
+ return M_CURSORDATA->m_cursor;
}
-bool wxCursor::Ok() const
+wxGDIRefData *wxCursor::CreateGDIRefData() const
{
- return (m_refData != NULL);
+ return new wxCursorRefData;
}
-GdkCursor *wxCursor::GetCursor() const
+wxGDIRefData *
+wxCursor::CloneGDIRefData(const wxGDIRefData * WXUNUSED(data)) const
{
- return M_CURSORDATA->m_cursor;
+ // TODO: We can't clone GDK cursors at the moment. To do this we'd need
+ // to remember the original data from which the cursor was created
+ // (i.e. standard cursor type or the bitmap) or use
+ // gdk_cursor_get_cursor_type() (which is in 2.22+ only) and
+ // gdk_cursor_get_image().
+ wxFAIL_MSG( wxS("Cloning cursors is not implemented in wxGTK.") );
+
+ return new wxCursorRefData;
}
//-----------------------------------------------------------------------------
// busy cursor routines
//-----------------------------------------------------------------------------
-extern wxCursor g_globalCursor;
+/* Current cursor, in order to hang on to
+ * cursor handle when setting the cursor globally */
+wxCursor g_globalCursor;
static wxCursor gs_savedCursor;
static int gs_busyCount = 0;
return wxCursor(wxCURSOR_WATCH);
}
+static void UpdateCursors(GdkDisplay** display)
+{
+ wxWindowList::const_iterator i = wxTopLevelWindows.begin();
+ for (size_t n = wxTopLevelWindows.size(); n--; ++i)
+ {
+ wxWindow* win = *i;
+ win->GTKUpdateCursor();
+ if (display && *display == NULL && win->m_widget)
+ *display = gtk_widget_get_display(win->m_widget);
+ }
+}
+
void wxEndBusyCursor()
{
if (--gs_busyCount > 0)
return;
- wxSetCursor( gs_savedCursor );
+ g_globalCursor = gs_savedCursor;
gs_savedCursor = wxNullCursor;
-
- wxYield();
+ UpdateCursors(NULL);
}
-void wxBeginBusyCursor( wxCursor *WXUNUSED(cursor) )
+void wxBeginBusyCursor(const wxCursor* cursor)
{
if (gs_busyCount++ > 0)
return;
- wxASSERT_MSG( !gs_savedCursor.Ok(),
+ wxASSERT_MSG( !gs_savedCursor.IsOk(),
wxT("forgot to call wxEndBusyCursor, will leak memory") );
gs_savedCursor = g_globalCursor;
-
- wxSetCursor( wxCursor(wxCURSOR_WATCH) );
-
- wxYield();
+ g_globalCursor = *cursor;
+ GdkDisplay* display = NULL;
+ UpdateCursors(&display);
+ if (display)
+ gdk_display_flush(display);
}
bool wxIsBusy()
void wxSetCursor( const wxCursor& cursor )
{
- if (g_isIdle)
- wxapp_install_idle_handler();
-
g_globalCursor = cursor;
+ UpdateCursors(NULL);
}
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