/////////////////////////////////////////////////////////////////////////////
-// 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 "wx/app.h"
-#include <gdk/gdk.h>
-#include <gtk/gtk.h>
+#ifndef WX_PRECOMP
+ #include "wx/window.h"
+ #include "wx/app.h"
+ #include "wx/image.h"
+ #include "wx/bitmap.h"
+ #include "wx/log.h"
+#endif // WX_PRECOMP
-//-----------------------------------------------------------------------------
-// idle system
-//-----------------------------------------------------------------------------
-
-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) gdk_cursor_unref( m_cursor );
}
+
+//-----------------------------------------------------------------------------
+// wxCursor
//-----------------------------------------------------------------------------
-#define M_CURSORDATA ((wxCursorRefData *)m_refData)
+#define M_CURSORDATA static_cast<wxCursorRefData*>(m_refData)
+
+IMPLEMENT_DYNAMIC_CLASS(wxCursor, wxGDIObject)
+
+// used in the following two ctors
+extern GtkWidget *wxGetRootWindow();
-IMPLEMENT_DYNAMIC_CLASS(wxCursor,wxObject)
wxCursor::wxCursor()
{
+}
+
+#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)
+{
+ if (!maskBits)
+ maskBits = bits;
+ if (!fg)
+ fg = wxBLACK;
+ if (!bg)
+ bg = wxWHITE;
+ if (hotSpotX < 0 || hotSpotX >= width)
+ hotSpotX = 0;
+ if (hotSpotY < 0 || hotSpotY >= height)
+ hotSpotY = 0;
+ 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_refData = new wxCursorRefData;
+ 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);
}
-wxCursor::wxCursor( int cursorId )
+wxCursor::~wxCursor()
+{
+}
+
+void wxCursor::InitFromStock( wxStockCursor cursorId )
{
m_refData = new wxCursorRefData();
GdkCursorType gdk_cur = GDK_LEFT_PTR;
switch (cursorId)
{
+ 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;
+
+ 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_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 );
}
-extern GtkWidget *wxGetRootWindow();
+#if wxUSE_IMAGE
-wxCursor::wxCursor(const char bits[], int width, int height,
- int hotSpotX, int hotSpotY,
- const char maskBits[], wxColour *fg, wxColour *bg)
+static void GetHotSpot(const wxImage& image, int& x, int& y)
{
- if (!maskBits)
- maskBits = bits;
- if (!fg)
- fg = wxBLACK;
- if (!bg)
- bg = wxWHITE;
- if (hotSpotX < 0 || hotSpotX >= width)
- hotSpotX = 0;
- if (hotSpotY < 0 || hotSpotY >= height)
- hotSpotY = 0;
-
- GdkBitmap *data = gdk_bitmap_create_from_data( wxGetRootWindow()->window, (gchar *) bits, width, height );
- GdkBitmap *mask = gdk_bitmap_create_from_data( wxGetRootWindow()->window, (gchar *) maskBits, width, height);
-
- m_refData = new wxCursorRefData;
- M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixmap(
- data, mask, fg->GetColor(), bg->GetColor(),
- hotSpotX, hotSpotY );
-
- gdk_bitmap_unref( data );
- gdk_bitmap_unref( mask );
+ if (image.HasOption(wxIMAGE_OPTION_CUR_HOTSPOT_X))
+ x = image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_X);
+ else
+ x = 0;
+
+ if (image.HasOption(wxIMAGE_OPTION_CUR_HOTSPOT_Y))
+ y = image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_Y);
+ else
+ y = 0;
+
+ if (x < 0 || x >= image.GetWidth())
+ x = 0;
+ if (y < 0 || y >= image.GetHeight())
+ y = 0;
}
-
-wxCursor::wxCursor( const wxCursor &cursor )
+void wxCursor::InitFromImage( const wxImage & image )
{
- Ref( cursor );
-}
+ int w = image.GetWidth() ;
+ int h = image.GetHeight();
+ bool bHasMask = image.HasMask();
+ int hotSpotX, hotSpotY;
+ GetHotSpot(image, hotSpotX, hotSpotY);
+ m_refData = new wxCursorRefData;
+ wxImage image_copy(image);
-#if wxUSE_IMAGE
-wxCursor::wxCursor( const wxImage & image )
-{
- unsigned char * rgbBits = image.GetData();
- int w = image.GetWidth() ;
- int h = image.GetHeight() ;
- bool bHasMask = image.HasMask() ;
- int imagebitcount = (w*h)/8;
-
- unsigned char r, g, b ;
- unsigned char * bits = new unsigned char [imagebitcount];
- unsigned char * maskBits = new unsigned char [imagebitcount];
-
- int i,j, i8; unsigned char c, cMask;
- for (i=0; i<imagebitcount; i++)
+ GdkDisplay* display = gdk_drawable_get_display(gtk_widget_get_window(wxGetRootWindow()));
+ if (gdk_display_supports_cursor_color(display))
+ {
+ if (!image.HasAlpha())
{
- bits[i] = 0;
- i8 = i * 8;
-
- cMask = 1;
- for (j=0; j<8; j++)
- {
- // possible overflow if we do the summation first ?
- c = rgbBits[(i8+j)*3]/3 + rgbBits[(i8+j)*3+1]/3 + rgbBits[(i8+j)*3+2]/3 ;
- //if average value is > mid grey
- if (c>127)
- bits[i] = bits[i] | cMask ;
- cMask = cMask * 2 ;
- }
+ // add alpha, so wxBitmap will convert to pixbuf format
+ image_copy.InitAlpha();
}
- if (bHasMask)
- {
- r = image.GetMaskRed() ;
- g = image.GetMaskGreen() ;
- b = image.GetMaskBlue() ;
-
- for (i=0; i<imagebitcount; i++)
+ wxBitmap bitmap(image_copy);
+ wxASSERT(bitmap.HasPixbuf());
+ M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixbuf
+ (
+ display,
+ bitmap.GetPixbuf(),
+ hotSpotX, hotSpotY
+ );
+ }
+ else // no colour cursor support
+ {
+ unsigned long keyMaskColor = 0;
+ GdkPixmap *maskRaw;
+ if (bHasMask)
{
- maskBits[i] = 0x0;
- i8 = i * 8;
-
- cMask = 1;
- for (j=0; j<8; j++)
- {
- if (rgbBits[(i8+j)*3] != r || rgbBits[(i8+j)*3+1] != g || rgbBits[(i8+j)*3+2] != b)
- maskBits[i] = maskBits[i] | cMask ;
- cMask = cMask * 2 ;
- }
+ keyMaskColor = wxImageHistogram::MakeKey(
+ image.GetMaskRed(), image.GetMaskGreen(), image.GetMaskBlue());
+ // get mask before image is modified
+ wxBitmap bitmap(image, 1);
+ maskRaw = bitmap.GetMask()->GetBitmap();
+ g_object_ref(maskRaw);
}
- }
- else
+ else
{
- for (i=0; i<imagebitcount; i++)
- maskBits[i]= 0xFF ;
+ const int size = ((w + 7) / 8) * h;
+ char* bits = new char[size];
+ memset(bits, 0xff, size);
+ maskRaw = gdk_bitmap_create_from_data(
+ gtk_widget_get_window(wxGetRootWindow()), bits, w, h);
+ delete[] bits;
}
- //find the most frequent color(s)
- //it seems a waste of effort to copy the image
- //but otherwise we need to remove the const modifier ??
- wxImage tmpImage = image.Copy();
- wxHashTable hTable;
-
- //colors as rrggbb
- unsigned long key;
- unsigned long keyMaskColor = 0;
- if (bHasMask) keyMaskColor = (r << 16) | (g << 8) | b;
-
- tmpImage.ComputeHistogram( hTable );
-
- long MostFreqCol = 0 ; long nMost = 0;
- long NextFreqCol = 0 ; long nNext = 0;
- long value ;
- hTable.BeginFind();
- wxNode *node = NULL;
- while ((node = hTable.Next()) != NULL)
- {
- wxHNode *hnode = (wxHNode*) node->GetData();
- value = hnode->value;
- key = node->GetKeyInteger() ;
- if (!bHasMask || (key != keyMaskColor) )
+
+ // assign the raw pointer to wxGtkObject to ensure it is unref'd later
+ wxGtkObject<GdkPixmap> mask(maskRaw);
+
+ // modify image so wxBitmap can be used to convert to pixmap
+ image_copy.SetMask(false);
+ wxByte* data = image_copy.GetData();
+ for (int j = 0; j < h; j++)
{
- if (value > nMost)
+ for (int i = 0; i < w; i++, data += 3)
{
- nMost = value;
- MostFreqCol = key;
+ // if average value of the pixel is > mid grey, convert it to
+ // background (0), otherwise to foreground (255, using wxBitmap
+ // convention)
+ data[0] =
+ data[1] =
+ data[2] = int(data[0]) + data[1] + data[2] >= 3 * 128 ? 0 : 255;
}
- else
- if (value > nNext)
+ }
+ wxBitmap bitmap(image_copy, 1);
+
+ // find the most frequent color(s)
+ wxImageHistogram histogram;
+ image.ComputeHistogram(histogram);
+
+ long colMostFreq = 0;
+ unsigned long nMost = 0;
+ long colNextMostFreq = 0;
+ unsigned long nNext = 0;
+ for ( wxImageHistogram::iterator entry = histogram.begin();
+ entry != histogram.end();
+ ++entry )
+ {
+ unsigned long key = entry->first;
+ if ( !bHasMask || (key != keyMaskColor) )
{
- nNext = value ;
- NextFreqCol = key;
+ unsigned long value = entry->second.value;
+ if (value > nMost)
+ {
+ nNext = nMost;
+ colNextMostFreq = colMostFreq;
+ nMost = value;
+ colMostFreq = key;
+ }
+ else if (value > nNext)
+ {
+ nNext = value;
+ colNextMostFreq = key;
+ }
}
}
- }
-
-
- wxColour fg = wxColour ( (unsigned char)(MostFreqCol >> 16),
- (unsigned char)(MostFreqCol >> 8),
- (unsigned char)(MostFreqCol) ) ;
-
- wxColour bg = wxColour ( (unsigned char)(NextFreqCol >> 16),
- (unsigned char)(NextFreqCol >> 8),
- (unsigned char)(NextFreqCol) ) ;
+ wxColour fg = wxColour ( (unsigned char)(colMostFreq >> 16),
+ (unsigned char)(colMostFreq >> 8),
+ (unsigned char)(colMostFreq) );
+ wxColour bg = wxColour ( (unsigned char)(colNextMostFreq >> 16),
+ (unsigned char)(colNextMostFreq >> 8),
+ (unsigned char)(colNextMostFreq) );
- int hotSpotX=0;
- int hotSpotY=0;
+ int fg_intensity = fg.Red() + fg.Green() + fg.Blue();
+ int bg_intensity = bg.Red() + bg.Green() + bg.Blue();
- if (image.HasOption(wxCUR_HOTSPOT_X))
- hotSpotX = image.GetOptionInt(wxCUR_HOTSPOT_X);
- if (image.HasOption(wxCUR_HOTSPOT_Y))
- hotSpotY = image.GetOptionInt(wxCUR_HOTSPOT_Y);
-
- if (hotSpotX < 0 || hotSpotX >= w)
- hotSpotX = 0;
- if (hotSpotY < 0 || hotSpotY >= h)
- hotSpotY = 0;
-
- GdkBitmap *data = gdk_bitmap_create_from_data( wxGetRootWindow()->window, (gchar *) bits,
- w, h );
- GdkBitmap *mask = gdk_bitmap_create_from_data( wxGetRootWindow()->window, (gchar *) maskBits,
- w, h );
-
- m_refData = new wxCursorRefData;
- M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixmap(
- data, mask, fg.GetColor(), bg.GetColor(),
- hotSpotX, hotSpotY );
-
- gdk_bitmap_unref( data );
- gdk_bitmap_unref( mask );
- delete [] bits ;
- delete [] maskBits;
-
-}
-#endif
-
-wxCursor::~wxCursor()
-{
-}
-
-wxCursor& wxCursor::operator = ( const wxCursor& cursor )
-{
- if (*this == cursor)
- return (*this);
-
- Ref( cursor );
+ if (bg_intensity > fg_intensity)
+ {
+ //swap fg and bg
+ wxColour tmp = fg;
+ fg = bg;
+ bg = tmp;
+ }
- return *this;
+ M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixmap
+ (
+ bitmap.GetPixmap(),
+ mask,
+ fg.GetColor(), bg.GetColor(),
+ hotSpotX, hotSpotY
+ );
+ }
}
-bool wxCursor::operator == ( const wxCursor& cursor ) const
-{
- return m_refData == cursor.m_refData;
-}
+#endif // wxUSE_IMAGE
-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;
-
- if (wxTheApp)
- wxTheApp->SendIdleEvents();
+ 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) );
-
- if (wxTheApp)
- wxTheApp->SendIdleEvents();
-
- gdk_flush();
+ 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);
}
projects / wxWidgets.git / blobdiff