From eb6ee8ab39758a6167c196df6bd05aaa07d45380 Mon Sep 17 00:00:00 2001 From: Paul Cornett Date: Sun, 20 Jan 2013 01:46:50 +0000 Subject: [PATCH] make some reference handling a little more direct and less obscure git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@73386 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775 --- src/gtk/dcclient.cpp | 59 ++++++++++++++++++++++++-------------------- 1 file changed, 32 insertions(+), 27 deletions(-) diff --git a/src/gtk/dcclient.cpp b/src/gtk/dcclient.cpp index b20b5d71cf..8a6960eb24 100644 --- a/src/gtk/dcclient.cpp +++ b/src/gtk/dcclient.cpp @@ -996,7 +996,7 @@ void wxWindowDCImpl::DoDrawIcon( const wxIcon &icon, wxCoord x, wxCoord y ) DoDrawBitmap( (const wxBitmap&)icon, x, y, true ); } -// scale a pixbuf, return new pixbuf, unref old one +// scale a pixbuf static GdkPixbuf* Scale(GdkPixbuf* pixbuf, int dst_w, int dst_h, double sx, double sy) { @@ -1004,20 +1004,21 @@ Scale(GdkPixbuf* pixbuf, int dst_w, int dst_h, double sx, double sy) GDK_COLORSPACE_RGB, gdk_pixbuf_get_has_alpha(pixbuf), 8, dst_w, dst_h); gdk_pixbuf_scale(pixbuf, pixbuf_scaled, 0, 0, dst_w, dst_h, 0, 0, sx, sy, GDK_INTERP_NEAREST); - g_object_unref(pixbuf); return pixbuf_scaled; } -// scale part of a pixmap using pixbuf scaling, return pixbuf +// scale part of a pixmap using pixbuf scaling static GdkPixbuf* Scale(GdkPixmap* pixmap, int x, int y, int w, int h, int dst_w, int dst_h, double sx, double sy) { GdkPixbuf* pixbuf = gdk_pixbuf_get_from_drawable( NULL, pixmap, NULL, x, y, 0, 0, w, h); - return Scale(pixbuf, dst_w, dst_h, sx, sy); + GdkPixbuf* pixbuf2 = Scale(pixbuf, dst_w, dst_h, sx, sy); + g_object_unref(pixbuf); + return pixbuf2; } -// scale part of a mask pixmap, return new mask, unref old one +// scale part of a mask pixmap static GdkPixmap* ScaleMask(GdkPixmap* mask, int x, int y, int w, int h, int dst_w, int dst_h, double sx, double sy) { @@ -1041,12 +1042,10 @@ ScaleMask(GdkPixmap* mask, int x, int y, int w, int h, int dst_w, int dst_h, dou g_object_unref(pixbuf); GdkPixmap* pixmap = gdk_bitmap_create_from_data(mask, data, dst_w, dst_h); delete[] data; - g_object_unref(mask); return pixmap; } // Make a new mask from part of a mask and a clip region. -// Return new mask, unref old one. static GdkPixmap* ClipMask(GdkPixmap* mask, GdkRegion* clipRegion, int x, int y, int dst_x, int dst_y, int w, int h) { @@ -1061,7 +1060,6 @@ ClipMask(GdkPixmap* mask, GdkRegion* clipRegion, int x, int y, int dst_x, int ds // draw old mask onto new one, with clip gdk_draw_drawable(pixmap, gc, mask, x, y, 0, 0, w, h); g_object_unref(gc); - g_object_unref(mask); return pixmap; } @@ -1136,39 +1134,42 @@ void wxWindowDCImpl::DoDrawBitmap( const wxBitmap &bitmap, } if (mask) { - g_object_ref(mask); + GdkPixmap* mask_new = NULL; if (isScaled) + { mask = ScaleMask(mask, 0, 0, w, h, ww, hh, m_scaleX, m_scaleY); + mask_new = mask; + } if (overlap == wxPartRegion) { // need a new mask that also masks the clipped area, // because gc can't have both a mask and a clip region mask = ClipMask(mask, clipRegion, 0, 0, xx, yy, ww, hh); + if (mask_new) + g_object_unref(mask_new); + mask_new = mask; } gdk_gc_set_clip_mask(use_gc, mask); gdk_gc_set_clip_origin(use_gc, xx, yy); + if (mask_new) + g_object_unref(mask_new); } // determine whether to use pixmap or pixbuf GdkPixmap* pixmap = NULL; + GdkPixmap* pixmap_new = NULL; GdkPixbuf* pixbuf = NULL; + GdkPixbuf* pixbuf_new = NULL; if (bitmap.HasPixmap()) pixmap = bitmap.GetPixmap(); if (pixmap && gdk_drawable_get_depth(pixmap) == 1) { // convert mono pixmap to color using text fg/bg colors pixmap = MonoToColor(pixmap, 0, 0, w, h); + pixmap_new = pixmap; } else if (hasAlpha || pixmap == NULL) - { - pixmap = NULL; pixbuf = bitmap.GetPixbuf(); - g_object_ref(pixbuf); - } - else - { - g_object_ref(pixmap); - } if (isScaled) { @@ -1176,26 +1177,26 @@ void wxWindowDCImpl::DoDrawBitmap( const wxBitmap &bitmap, pixbuf = Scale(pixbuf, ww, hh, m_scaleX, m_scaleY); else pixbuf = Scale(pixmap, 0, 0, w, h, ww, hh, m_scaleX, m_scaleY); + + pixbuf_new = pixbuf; } if (pixbuf) { gdk_draw_pixbuf(m_gdkwindow, use_gc, pixbuf, 0, 0, xx, yy, ww, hh, GDK_RGB_DITHER_NORMAL, 0, 0); - g_object_unref(pixbuf); } else { gdk_draw_drawable(m_gdkwindow, use_gc, pixmap, 0, 0, xx, yy, ww, hh); } - if (pixmap) - g_object_unref(pixmap); + if (pixbuf_new) + g_object_unref(pixbuf_new); + if (pixmap_new) + g_object_unref(pixmap_new); if (mask) - { - g_object_unref(mask); gdk_gc_set_clip_region(use_gc, clipRegion); - } } bool wxWindowDCImpl::DoBlit( wxCoord xdest, wxCoord ydest, @@ -1304,7 +1305,6 @@ bool wxWindowDCImpl::DoBlit( wxCoord xdest, wxCoord ydest, if (mask) { - g_object_ref(mask); int srcMask_x = src_x; int srcMask_y = src_y; if (xsrcMask != -1 || ysrcMask != -1) @@ -1312,10 +1312,12 @@ bool wxWindowDCImpl::DoBlit( wxCoord xdest, wxCoord ydest, srcMask_x = source->LogicalToDeviceX(xsrcMask); srcMask_y = source->LogicalToDeviceY(ysrcMask); } + GdkPixmap* mask_new = NULL; if (isScaled) { mask = ScaleMask(mask, srcMask_x, srcMask_y, src_w, src_h, dst_w, dst_h, scale_x, scale_y); + mask_new = mask; srcMask_x = 0; srcMask_y = 0; } @@ -1325,11 +1327,16 @@ bool wxWindowDCImpl::DoBlit( wxCoord xdest, wxCoord ydest, // because gc can't have both a mask and a clip region mask = ClipMask(mask, clipRegion, srcMask_x, srcMask_y, dst_x, dst_y, dst_w, dst_h); + if (mask_new) + g_object_unref(mask_new); + mask_new = mask; srcMask_x = 0; srcMask_y = 0; } gdk_gc_set_clip_mask(use_gc, mask); gdk_gc_set_clip_origin(use_gc, dst_x - srcMask_x, dst_y - srcMask_y); + if (mask_new) + g_object_unref(mask_new); } GdkPixmap* pixmap = NULL; @@ -1369,10 +1376,8 @@ bool wxWindowDCImpl::DoBlit( wxCoord xdest, wxCoord ydest, if (pixmap) g_object_unref(pixmap); if (mask) - { - g_object_unref(mask); gdk_gc_set_clip_region(use_gc, clipRegion); - } + return true; } -- 2.45.2