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firefox/mozilla-975919-gtk3-hidpi.patch

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Gtk3 - added patch for HiDPI support (mozbz#975919)
2015-01-19 17:32:52 +00:00
# HG changeset patch
# Parent 7b33ee7fd162d784f382250d3fa811e86a1b7348
# User Andrew Comminos <andrew@morlunk.com>
Bug 975919 - Added support for HiDPI on GTK 3.10+
diff --git a/widget/gtk/nsGtkUtils.h b/widget/gtk/nsGtkUtils.h
--- a/widget/gtk/nsGtkUtils.h
+++ b/widget/gtk/nsGtkUtils.h
@@ -4,16 +4,17 @@
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef nsGtkUtils_h__
#define nsGtkUtils_h__
#include <glib.h>
+#include <dlfcn.h>
// Some gobject functions expect functions for gpointer arguments.
// gpointer is void* but C++ doesn't like casting functions to void*.
template<class T> static inline gpointer
FuncToGpointer(T aFunction)
{
return reinterpret_cast<gpointer>
(reinterpret_cast<uintptr_t>
diff --git a/widget/gtk/nsLookAndFeel.cpp b/widget/gtk/nsLookAndFeel.cpp
--- a/widget/gtk/nsLookAndFeel.cpp
+++ b/widget/gtk/nsLookAndFeel.cpp
@@ -728,16 +728,27 @@ GetSystemFontInfo(GtkWidget *aWidget,
// |size| is now either pixels or pango-points (not Mozilla-points!)
if (!pango_font_description_get_size_is_absolute(desc)) {
// |size| is in pango-points, so convert to pixels.
size *= float(gfxPlatformGtk::GetDPI()) / POINTS_PER_INCH_FLOAT;
}
+ // Scale fonts up on HiDPI displays.
+ // This would be done automatically with cairo, but we manually manage
+ // the display scale for platform consistency.
+ static gint (*GdkScreenGetMonitorScaleFactorPtr)(GdkScreen*,gint) =
+ (gint (*)(GdkScreen*,gint)) dlsym(RTLD_DEFAULT,
+ "gdk_screen_get_monitor_scale_factor");
+ if (GdkScreenGetMonitorScaleFactorPtr) {
+ GdkScreen *screen = gdk_screen_get_default();
+ size *= (*GdkScreenGetMonitorScaleFactorPtr)(screen, 0);
+ }
+
// |size| is now pixels
aFontStyle->size = size;
pango_font_description_free(desc);
}
static void
diff --git a/widget/gtk/nsScreenGtk.cpp b/widget/gtk/nsScreenGtk.cpp
--- a/widget/gtk/nsScreenGtk.cpp
+++ b/widget/gtk/nsScreenGtk.cpp
@@ -6,20 +6,20 @@
#include "nsScreenGtk.h"
#include <gdk/gdk.h>
#ifdef MOZ_X11
#include <gdk/gdkx.h>
#include <X11/Xatom.h>
#endif
#include <gtk/gtk.h>
+#include <dlfcn.h>
static uint32_t sScreenId = 0;
-
nsScreenGtk :: nsScreenGtk ( )
: mScreenNum(0),
mRect(0, 0, 0, 0),
mAvailRect(0, 0, 0, 0),
mId(++sScreenId)
{
}
@@ -35,37 +35,68 @@ nsScreenGtk :: GetId(uint32_t *aId)
*aId = mId;
return NS_OK;
} // GetId
NS_IMETHODIMP
nsScreenGtk :: GetRect(int32_t *outLeft, int32_t *outTop, int32_t *outWidth, int32_t *outHeight)
{
+ double scale;
+ GetContentsScaleFactor(&scale);
+
+ *outLeft = NSToIntRound(mRect.x * scale);
+ *outTop = NSToIntRound(mRect.y * scale);
+ *outWidth = NSToIntRound(mRect.width * scale);
+ *outHeight = NSToIntRound(mRect.height * scale);
+
+ return NS_OK;
+
+} // GetRect
+
+
+NS_IMETHODIMP
+nsScreenGtk :: GetAvailRect(int32_t *outLeft, int32_t *outTop, int32_t *outWidth, int32_t *outHeight)
+{
+ double scale;
+ GetContentsScaleFactor(&scale);
+
+ *outLeft = NSToIntRound(mAvailRect.x * scale);
+ *outTop = NSToIntRound(mAvailRect.y * scale);
+ *outWidth = NSToIntRound(mAvailRect.width * scale);
+ *outHeight = NSToIntRound(mAvailRect.height * scale);
+
+ return NS_OK;
+
+} // GetAvailRect
+
+NS_IMETHODIMP
+nsScreenGtk :: GetRectDisplayPix(int32_t *outLeft, int32_t *outTop, int32_t *outWidth, int32_t *outHeight)
+{
*outLeft = mRect.x;
*outTop = mRect.y;
*outWidth = mRect.width;
*outHeight = mRect.height;
return NS_OK;
-} // GetRect
+} // GetRectDisplayPix
NS_IMETHODIMP
-nsScreenGtk :: GetAvailRect(int32_t *outLeft, int32_t *outTop, int32_t *outWidth, int32_t *outHeight)
+nsScreenGtk :: GetAvailRectDisplayPix(int32_t *outLeft, int32_t *outTop, int32_t *outWidth, int32_t *outHeight)
{
*outLeft = mAvailRect.x;
*outTop = mAvailRect.y;
*outWidth = mAvailRect.width;
*outHeight = mAvailRect.height;
return NS_OK;
-} // GetAvailRect
+} // GetAvailRectDisplayPix
NS_IMETHODIMP
nsScreenGtk :: GetPixelDepth(int32_t *aPixelDepth)
{
GdkVisual * visual = gdk_screen_get_system_visual(gdk_screen_get_default());
*aPixelDepth = gdk_visual_get_depth(visual);
@@ -77,16 +108,33 @@ nsScreenGtk :: GetPixelDepth(int32_t *aP
NS_IMETHODIMP
nsScreenGtk :: GetColorDepth(int32_t *aColorDepth)
{
return GetPixelDepth ( aColorDepth );
} // GetColorDepth
+NS_IMETHODIMP
+nsScreenGtk :: GetContentsScaleFactor(double* aContentsScaleFactor)
+{
+ static gint (*GdkScreenGetMonitorScaleFactorPtr)(GdkScreen*,gint) =
+ (gint (*)(GdkScreen*,gint)) dlsym(RTLD_DEFAULT,
+ "gdk_screen_get_monitor_scale_factor");
+ if (GdkScreenGetMonitorScaleFactorPtr) {
+ GdkScreen *screen = gdk_screen_get_default();
+ *aContentsScaleFactor = (*GdkScreenGetMonitorScaleFactorPtr)
+ (screen, mScreenNum);
+ } else {
+ *aContentsScaleFactor = 1;
+ }
+ return NS_OK;
+}
+
+
void
nsScreenGtk :: Init (GdkWindow *aRootWindow)
{
// We listen for configure events on the root window to pick up
// changes to this rect. We could listen for "size_changed" signals
// on the default screen to do this, except that doesn't work with
// versions of GDK predating the GdkScreen object. See bug 256646.
mAvailRect = mRect = nsIntRect(0, 0, gdk_screen_width(), gdk_screen_height());
diff --git a/widget/gtk/nsScreenGtk.h b/widget/gtk/nsScreenGtk.h
--- a/widget/gtk/nsScreenGtk.h
+++ b/widget/gtk/nsScreenGtk.h
@@ -28,18 +28,21 @@ class nsScreenGtk : public nsBaseScreen
{
public:
nsScreenGtk();
~nsScreenGtk();
NS_IMETHOD GetId(uint32_t* aId);
NS_IMETHOD GetRect(int32_t* aLeft, int32_t* aTop, int32_t* aWidth, int32_t* aHeight);
NS_IMETHOD GetAvailRect(int32_t* aLeft, int32_t* aTop, int32_t* aWidth, int32_t* aHeight);
+ NS_IMETHOD GetRectDisplayPix(int32_t* aLeft, int32_t* aTop, int32_t* aWidth, int32_t* aHeight);
+ NS_IMETHOD GetAvailRectDisplayPix(int32_t* aLeft, int32_t* aTop, int32_t* aWidth, int32_t* aHeight);
NS_IMETHOD GetPixelDepth(int32_t* aPixelDepth);
NS_IMETHOD GetColorDepth(int32_t* aColorDepth);
+ NS_IMETHOD GetContentsScaleFactor(double* aContentsScaleFactor);
void Init(GdkWindow *aRootWindow);
#ifdef MOZ_X11
void Init(XineramaScreenInfo *aScreenInfo);
#endif /* MOZ_X11 */
private:
uint32_t mScreenNum;
diff --git a/widget/gtk/nsWindow.cpp b/widget/gtk/nsWindow.cpp
--- a/widget/gtk/nsWindow.cpp
+++ b/widget/gtk/nsWindow.cpp
@@ -466,16 +466,19 @@ nsWindow::DispatchResized(int32_t aWidth
nsresult
nsWindow::DispatchEvent(WidgetGUIEvent* aEvent, nsEventStatus& aStatus)
{
#ifdef DEBUG
debug_DumpEvent(stdout, aEvent->widget, aEvent,
nsAutoCString("something"), 0);
#endif
+ // Translate the mouse event into device pixels.
+ aEvent->refPoint.x = GdkCoordToDevicePixels(aEvent->refPoint.x);
+ aEvent->refPoint.y = GdkCoordToDevicePixels(aEvent->refPoint.y);
aStatus = nsEventStatus_eIgnore;
nsIWidgetListener* listener =
mAttachedWidgetListener ? mAttachedWidgetListener : mWidgetListener;
if (listener) {
aStatus = listener->HandleEvent(aEvent, mUseAttachedEvents);
}
@@ -724,16 +727,22 @@ nsWindow::GetDPI()
double heightInches = DisplayHeightMM(dpy, defaultScreen)/MM_PER_INCH_FLOAT;
if (heightInches < 0.25) {
// Something's broken, but we'd better not crash.
return 96.0f;
}
return float(DisplayHeight(dpy, defaultScreen)/heightInches);
}
+double
+nsWindow::GetDefaultScaleInternal()
+{
+ return GdkScaleFactor();
+}
+
NS_IMETHODIMP
nsWindow::SetParent(nsIWidget *aNewParent)
{
if (mContainer || !mGdkWindow) {
NS_NOTREACHED("nsWindow::SetParent called illegally");
return NS_ERROR_NOT_IMPLEMENTED;
}
@@ -822,18 +831,19 @@ nsWindow::ReparentNativeWidgetInternal(n
SetWidgetForHierarchy(mGdkWindow, aOldContainer, aNewContainer);
if (aOldContainer == gInvisibleContainer) {
CheckDestroyInvisibleContainer();
}
}
if (!mIsTopLevel) {
- gdk_window_reparent(mGdkWindow, aNewParentWindow, mBounds.x,
- mBounds.y);
+ gdk_window_reparent(mGdkWindow, aNewParentWindow,
+ DevicePixelsToGdkCoordRoundDown(mBounds.x),
+ DevicePixelsToGdkCoordRoundDown(mBounds.y));
}
}
nsWindow* newParent = static_cast<nsWindow*>(aNewParent);
bool parentHasMappedToplevel =
newParent && newParent->mHasMappedToplevel;
if (mHasMappedToplevel != parentHasMappedToplevel) {
SetHasMappedToplevel(parentHasMappedToplevel);
@@ -858,52 +868,56 @@ nsWindow::IsVisible() const
{
return mIsShown;
}
NS_IMETHODIMP
nsWindow::ConstrainPosition(bool aAllowSlop, int32_t *aX, int32_t *aY)
{
if (mIsTopLevel && mShell) {
- int32_t screenWidth = gdk_screen_width();
- int32_t screenHeight = gdk_screen_height();
+ int width = GdkCoordToDevicePixels(gdk_screen_width());
+ int height = GdkCoordToDevicePixels(gdk_screen_height());
if (aAllowSlop) {
if (*aX < (kWindowPositionSlop - mBounds.width))
*aX = kWindowPositionSlop - mBounds.width;
- if (*aX > (screenWidth - kWindowPositionSlop))
- *aX = screenWidth - kWindowPositionSlop;
+ if (*aX > (width - kWindowPositionSlop))
+ *aX = width - kWindowPositionSlop;
if (*aY < (kWindowPositionSlop - mBounds.height))
*aY = kWindowPositionSlop - mBounds.height;
- if (*aY > (screenHeight - kWindowPositionSlop))
- *aY = screenHeight - kWindowPositionSlop;
+ if (*aY > (height - kWindowPositionSlop))
+ *aY = height - kWindowPositionSlop;
} else {
if (*aX < 0)
*aX = 0;
- if (*aX > (screenWidth - mBounds.width))
- *aX = screenWidth - mBounds.width;
+ if (*aX > (width - mBounds.width))
+ *aX = width - mBounds.width;
if (*aY < 0)
*aY = 0;
- if (*aY > (screenHeight - mBounds.height))
- *aY = screenHeight - mBounds.height;
+ if (*aY > (height - mBounds.height))
+ *aY = height - mBounds.height;
}
}
return NS_OK;
}
void nsWindow::SetSizeConstraints(const SizeConstraints& aConstraints)
{
mSizeConstraints.mMinSize = GetSafeWindowSize(aConstraints.mMinSize);
mSizeConstraints.mMaxSize = GetSafeWindowSize(aConstraints.mMaxSize);
if (mShell) {
GdkGeometry geometry;
- geometry.min_width = mSizeConstraints.mMinSize.width;
- geometry.min_height = mSizeConstraints.mMinSize.height;
- geometry.max_width = mSizeConstraints.mMaxSize.width;
- geometry.max_height = mSizeConstraints.mMaxSize.height;
+ geometry.min_width = DevicePixelsToGdkCoordRoundUp(
+ mSizeConstraints.mMinSize.width);
+ geometry.min_height = DevicePixelsToGdkCoordRoundUp(
+ mSizeConstraints.mMinSize.height);
+ geometry.max_width = DevicePixelsToGdkCoordRoundUp(
+ mSizeConstraints.mMaxSize.width);
+ geometry.max_height = DevicePixelsToGdkCoordRoundUp(
+ mSizeConstraints.mMaxSize.height);
uint32_t hints = GDK_HINT_MIN_SIZE | GDK_HINT_MAX_SIZE;
gtk_window_set_geometry_hints(GTK_WINDOW(mShell), nullptr,
&geometry, GdkWindowHints(hints));
}
}
NS_IMETHODIMP
@@ -1156,21 +1170,23 @@ nsWindow::Move(double aX, double aY)
mBounds.x = x;
mBounds.y = y;
if (!mCreated)
return NS_OK;
mNeedsMove = false;
+ GdkPoint point = DevicePixelsToGdkPointRoundDown(nsIntPoint(x, y));
+
if (mIsTopLevel) {
- gtk_window_move(GTK_WINDOW(mShell), x, y);
+ gtk_window_move(GTK_WINDOW(mShell), point.x, point.y);
}
else if (mGdkWindow) {
- gdk_window_move(mGdkWindow, x, y);
+ gdk_window_move(mGdkWindow, point.x, point.y);
}
NotifyRollupGeometryChange();
return NS_OK;
}
NS_IMETHODIMP
nsWindow::PlaceBehind(nsTopLevelWidgetZPlacement aPlacement,
@@ -1427,17 +1443,17 @@ nsWindow::SetFocus(bool aRaise)
NS_IMETHODIMP
nsWindow::GetScreenBounds(nsIntRect &aRect)
{
if (mIsTopLevel && mContainer) {
// use the point including window decorations
gint x, y;
gdk_window_get_root_origin(gtk_widget_get_window(GTK_WIDGET(mContainer)), &x, &y);
- aRect.MoveTo(x, y);
+ aRect.MoveTo(GdkPointToDevicePixels({ x, y }));
}
else {
aRect.MoveTo(WidgetToScreenOffset());
}
// mBounds.Size() is the window bounds, not the window-manager frame
// bounds (bug 581863). gdk_window_get_frame_extents would give the
// frame bounds, but mBounds.Size() is returned here for consistency
// with Resize.
@@ -1597,27 +1613,22 @@ nsWindow::SetCursor(imgIContainer* aCurs
}
NS_IMETHODIMP
nsWindow::Invalidate(const nsIntRect &aRect)
{
if (!mGdkWindow)
return NS_OK;
- GdkRectangle rect;
- rect.x = aRect.x;
- rect.y = aRect.y;
- rect.width = aRect.width;
- rect.height = aRect.height;
+ GdkRectangle rect = DevicePixelsToGdkRectRoundOut(aRect);
+ gdk_window_invalidate_rect(mGdkWindow, &rect, FALSE);
LOGDRAW(("Invalidate (rect) [%p]: %d %d %d %d\n", (void *)this,
rect.x, rect.y, rect.width, rect.height));
- gdk_window_invalidate_rect(mGdkWindow, &rect, FALSE);
-
return NS_OK;
}
void*
nsWindow::GetNativeData(uint32_t aDataType)
{
switch (aDataType) {
case NS_NATIVE_WINDOW:
@@ -1745,17 +1756,17 @@ nsIntPoint
nsWindow::WidgetToScreenOffset()
{
gint x = 0, y = 0;
if (mGdkWindow) {
gdk_window_get_origin(mGdkWindow, &x, &y);
}
- return nsIntPoint(x, y);
+ return GdkPointToDevicePixels({ x, y });
}
NS_IMETHODIMP
nsWindow::EnableDragDrop(bool aEnable)
{
return NS_OK;
}
@@ -2037,17 +2048,19 @@ nsWindow::OnExposeEvent(cairo_t *cr)
#if (MOZ_WIDGET_GTK == 2)
if (!exposeRegion.Init(aEvent)) {
#else
if (!exposeRegion.Init(cr)) {
#endif
return FALSE;
}
- nsIntRegion &region = exposeRegion.mRegion;
+ gint scale = GdkScaleFactor();
+ nsIntRegion& region = exposeRegion.mRegion;
+ region.ScaleRoundOut(scale, scale);
ClientLayerManager *clientLayers =
(GetLayerManager()->GetBackendType() == LayersBackend::LAYERS_CLIENT)
? static_cast<ClientLayerManager*>(GetLayerManager())
: nullptr;
if (clientLayers && mCompositorParent) {
// We need to paint to the screen even if nothing changed, since if we
@@ -2377,31 +2390,34 @@ nsWindow::OnContainerUnrealize()
void
nsWindow::OnSizeAllocate(GtkAllocation *aAllocation)
{
LOG(("size_allocate [%p] %d %d %d %d\n",
(void *)this, aAllocation->x, aAllocation->y,
aAllocation->width, aAllocation->height));
- nsIntSize size(aAllocation->width, aAllocation->height);
+ nsIntSize size = GdkRectToDevicePixels(*aAllocation).Size();
+
if (mBounds.Size() == size)
return;
+ nsIntRect rect;
+
// Invalidate the new part of the window now for the pending paint to
// minimize background flashes (GDK does not do this for external resizes
// of toplevels.)
if (mBounds.width < size.width) {
- GdkRectangle rect =
- { mBounds.width, 0, size.width - mBounds.width, size.height };
+ GdkRectangle rect = DevicePixelsToGdkRectRoundOut(
+ { mBounds.width, 0, size.width - mBounds.width, size.height });
gdk_window_invalidate_rect(mGdkWindow, &rect, FALSE);
}
if (mBounds.height < size.height) {
- GdkRectangle rect =
- { 0, mBounds.height, size.width, size.height - mBounds.height };
+ GdkRectangle rect = DevicePixelsToGdkRectRoundOut(
+ { 0, mBounds.height, size.width, size.height - mBounds.height });
gdk_window_invalidate_rect(mGdkWindow, &rect, FALSE);
}
mBounds.SizeTo(size);
if (!mGdkWindow)
return;
@@ -3843,67 +3859,75 @@ nsWindow::SetWindowClass(const nsAString
nsMemory::Free(res_name);
return NS_OK;
}
void
nsWindow::NativeResize(int32_t aWidth, int32_t aHeight, bool aRepaint)
{
+ gint width = DevicePixelsToGdkCoordRoundUp(aWidth);
+ gint height = DevicePixelsToGdkCoordRoundUp(aHeight);
+
LOG(("nsWindow::NativeResize [%p] %d %d\n", (void *)this,
- aWidth, aHeight));
+ width, height));
// clear our resize flag
mNeedsResize = false;
if (mIsTopLevel) {
- gtk_window_resize(GTK_WINDOW(mShell), aWidth, aHeight);
+ gtk_window_resize(GTK_WINDOW(mShell), width, height);
}
else if (mContainer) {
GtkWidget *widget = GTK_WIDGET(mContainer);
GtkAllocation allocation, prev_allocation;
gtk_widget_get_allocation(widget, &prev_allocation);
allocation.x = prev_allocation.x;
allocation.y = prev_allocation.y;
- allocation.width = aWidth;
- allocation.height = aHeight;
+ allocation.width = width;
+ allocation.height = height;
gtk_widget_size_allocate(widget, &allocation);
}
else if (mGdkWindow) {
- gdk_window_resize(mGdkWindow, aWidth, aHeight);
+ gdk_window_resize(mGdkWindow, width, height);
}
}
void
nsWindow::NativeResize(int32_t aX, int32_t aY,
int32_t aWidth, int32_t aHeight,
bool aRepaint)
{
+ gint width = DevicePixelsToGdkCoordRoundUp(aWidth);
+ gint height = DevicePixelsToGdkCoordRoundUp(aHeight);
+ gint x = DevicePixelsToGdkCoordRoundDown(aX);
+ gint y = DevicePixelsToGdkCoordRoundDown(aY);
+
mNeedsResize = false;
mNeedsMove = false;
LOG(("nsWindow::NativeResize [%p] %d %d %d %d\n", (void *)this,
- aX, aY, aWidth, aHeight));
+ x, y, width, height));
if (mIsTopLevel) {
- // aX and aY give the position of the window manager frame top-left.
- gtk_window_move(GTK_WINDOW(mShell), aX, aY);
+ // x and y give the position of the window manager frame top-left.
+ gtk_window_move(GTK_WINDOW(mShell), x, y);
// This sets the client window size.
- gtk_window_resize(GTK_WINDOW(mShell), aWidth, aHeight);
+ gtk_window_resize(GTK_WINDOW(mShell), width, height);
}
else if (mContainer) {
GtkAllocation allocation;
- allocation.x = aX;
- allocation.y = aY;
- allocation.width = aWidth;
- allocation.height = aHeight;
+ allocation.x = x;
+ allocation.y = y;
+ allocation.width = width;
+ allocation.height = height;
gtk_widget_size_allocate(GTK_WIDGET(mContainer), &allocation);
}
else if (mGdkWindow) {
- gdk_window_move_resize(mGdkWindow, aX, aY, aWidth, aHeight);
+ gdk_window_move_resize(mGdkWindow, x, y, width, height);
}
}
void
nsWindow::NativeShow(bool aAction)
{
if (aAction) {
// unset our flag now that our window has been shown
@@ -6178,18 +6202,18 @@ nsWindow::GetThebesSurface(cairo_t *cr)
#if (MOZ_WIDGET_GTK == 2)
gdk_drawable_get_size(GDK_DRAWABLE(mGdkWindow), &width, &height);
#else
width = gdk_window_get_width(mGdkWindow);
height = gdk_window_get_height(mGdkWindow);
#endif
// Owen Taylor says this is the right thing to do!
- width = std::min(32767, width);
- height = std::min(32767, height);
+ width = std::min(32767, (int)std::ceil(GdkCoordToDevicePixels(width)));
+ height = std::min(32767, (int)std::ceil(GdkCoordToDevicePixels(height)));
gfxIntSize size(width, height);
GdkVisual *gdkVisual = gdk_window_get_visual(mGdkWindow);
Visual* visual = gdk_x11_visual_get_xvisual(gdkVisual);
# ifdef MOZ_HAVE_SHMIMAGE
bool usingShm = false;
if (nsShmImage::UseShm()) {
@@ -6204,18 +6228,27 @@ nsWindow::GetThebesSurface(cairo_t *cr)
}
if (!usingShm)
# endif // MOZ_HAVE_SHMIMAGE
{
#if (MOZ_WIDGET_GTK == 3)
#if MOZ_TREE_CAIRO
#error "cairo-gtk3 target must be built with --enable-system-cairo"
#else
+ // Available as of Cairo 1.14
+ static void (*CairoSurfaceSetDeviceScalePtr) (cairo_surface_t*,double,double) =
+ (void (*)(cairo_surface_t*,double,double)) dlsym(RTLD_DEFAULT,
+ "cairo_surface_set_device_scale");
+
if (cr) {
cairo_surface_t *surf = cairo_get_target(cr);
+ if (GdkScaleFactor() > 1) {
+ // Disable auto-scaling on HiDPI devices, let mozilla manage it.
+ (*CairoSurfaceSetDeviceScalePtr)(surf, 1, 1);
+ }
if (cairo_surface_status(surf) != CAIRO_STATUS_SUCCESS) {
NS_NOTREACHED("Missing cairo target?");
return nullptr;
}
mThebesSurface = gfxASurface::Wrap(surf);
} else
#endif
#endif // (MOZ_WIDGET_GTK == 3)
@@ -6286,16 +6319,18 @@ nsWindow::BeginMoveDrag(WidgetMouseEvent
GdkWindow *gdk_window;
gint button, screenX, screenY;
if (!GetDragInfo(aEvent, &gdk_window, &button, &screenX, &screenY)) {
return NS_ERROR_FAILURE;
}
// tell the window manager to start the move
+ screenX = DevicePixelsToGdkCoordRoundDown(screenX);
+ screenY = DevicePixelsToGdkCoordRoundDown(screenY);
gdk_window_begin_move_drag(gdk_window, button, screenX, screenY,
aEvent->time);
return NS_OK;
}
NS_IMETHODIMP
nsWindow::BeginResizeDrag(WidgetGUIEvent* aEvent,
@@ -6377,16 +6412,80 @@ nsWindow::ClearCachedResources()
for (GList* list = children; list; list = list->next) {
nsWindow* window = get_window_for_gdk_window(GDK_WINDOW(list->data));
if (window) {
window->ClearCachedResources();
}
}
}
+gint
+nsWindow::GdkScaleFactor()
+{
+#if (MOZ_WIDGET_GTK >= 3)
+ // Available as of GTK 3.10+
+ static gint (*GdkWindowGetScaleFactorPtr) (GdkWindow*) =
+ (gint (*)(GdkWindow*)) dlsym(RTLD_DEFAULT,
+ "gdk_window_get_scale_factor");
+ if (GdkWindowGetScaleFactorPtr)
+ return (*GdkWindowGetScaleFactorPtr)(mGdkWindow);
+#endif
+ return 1;
+}
+
+
+gint
+nsWindow::DevicePixelsToGdkCoordRoundUp(int pixels) {
+ return NSToIntCeil(float(pixels)/float(GdkScaleFactor()));
+}
+
+gint
+nsWindow::DevicePixelsToGdkCoordRoundDown(int pixels) {
+ return NSToIntFloor(float(pixels)/float(GdkScaleFactor()));
+}
+
+GdkPoint
+nsWindow::DevicePixelsToGdkPointRoundDown(nsIntPoint point) {
+ float scale = GdkScaleFactor();
+ return { NSToIntFloor(float(point.x)/scale),
+ NSToIntFloor(float(point.y)/scale) };
+}
+
+GdkRectangle
+nsWindow::DevicePixelsToGdkRectRoundOut(nsIntRect rect) {
+ gint scale = GdkScaleFactor();
+ nsIntRect scaledRect = rect;
+ scaledRect.ScaleInverseRoundOut(scale);
+ return { scaledRect.x,
+ scaledRect.y,
+ scaledRect.width,
+ scaledRect.height };
+}
+
+int
+nsWindow::GdkCoordToDevicePixels(gint coords) {
+ return coords * GdkScaleFactor();
+}
+
+nsIntPoint
+nsWindow::GdkPointToDevicePixels(GdkPoint point) {
+ gint scale = GdkScaleFactor();
+ return nsIntPoint(point.x * scale,
+ point.y * scale);
+}
+
+nsIntRect
+nsWindow::GdkRectToDevicePixels(GdkRectangle rect) {
+ gint scale = GdkScaleFactor();
+ return nsIntRect(rect.x * scale,
+ rect.y * scale,
+ rect.width * scale,
+ rect.height * scale);
+}
+
nsresult
nsWindow::SynthesizeNativeMouseEvent(nsIntPoint aPoint,
uint32_t aNativeMessage,
uint32_t aModifierFlags)
{
if (!mGdkWindow) {
return NS_OK;
}
diff --git a/widget/gtk/nsWindow.h b/widget/gtk/nsWindow.h
--- a/widget/gtk/nsWindow.h
+++ b/widget/gtk/nsWindow.h
@@ -92,16 +92,17 @@ public:
NS_IMETHOD Create(nsIWidget *aParent,
nsNativeWidget aNativeParent,
const nsIntRect &aRect,
nsDeviceContext *aContext,
nsWidgetInitData *aInitData);
NS_IMETHOD Destroy(void);
virtual nsIWidget *GetParent();
virtual float GetDPI();
+ virtual double GetDefaultScaleInternal();
virtual nsresult SetParent(nsIWidget* aNewParent);
NS_IMETHOD SetModal(bool aModal);
virtual bool IsVisible() const;
NS_IMETHOD ConstrainPosition(bool aAllowSlop,
int32_t *aX,
int32_t *aY);
virtual void SetSizeConstraints(const SizeConstraints& aConstraints);
NS_IMETHOD Move(double aX,
@@ -468,16 +469,30 @@ private:
* The instance is created when the top level widget is created. And when
* the widget is destroyed, it's released. All child windows refer its
* ancestor widget's instance. So, one set of IM contexts is created for
* all windows in a hierarchy. If the children are released after the top
* level window is released, the children still have a valid pointer,
* however, IME doesn't work at that time.
*/
nsRefPtr<nsGtkIMModule> mIMModule;
+
+ // HiDPI scale conversion
+ gint GdkScaleFactor();
+
+ // To GDK
+ gint DevicePixelsToGdkCoordRoundUp(int pixels);
+ gint DevicePixelsToGdkCoordRoundDown(int pixels);
+ GdkPoint DevicePixelsToGdkPointRoundDown(nsIntPoint point);
+ GdkRectangle DevicePixelsToGdkRectRoundOut(nsIntRect rect);
+
+ // From GDK
+ int GdkCoordToDevicePixels(gint coords);
+ nsIntPoint GdkPointToDevicePixels(GdkPoint point);
+ nsIntRect GdkRectToDevicePixels(GdkRectangle rect);
};
class nsChildWindow : public nsWindow {
public:
nsChildWindow();
~nsChildWindow();
};
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