[chromium-dev] Re: How to change the cursor smoothly for a view
Changing the default class cursor to NULL in widget_win.cc makes not difference that I can see. Any other thoughts? On Jun 13, 4:00 pm, Ben Goodger (Google) b...@chromium.org wrote: No problem. Get well soon! On Sat, Jun 13, 2009 at 3:55 PM, Daniel Cowxdaniel.c...@gmail.com wrote: Sure, I'll take care of this. It'll have to wait a few days though as I broke my index finger and I'm having a bit of a time typing right now. Hope that's cool. Cheers, Daniel On Jun 11, 2:55 pm, Ben Goodger (Google) b...@chromium.org wrote: It's in the class registration function in widget_win.cc -Ben On Thu, Jun 11, 2009 at 2:52 PM, Peter Kastingpkast...@google.com wrote: On Thu, Jun 11, 2009 at 2:48 PM, Ben Goodger (Google) b...@chromium.org wrote: Daniel, do you want to try making this change instead? It'll be pretty obvious to you if it doesn't work. Filed as crbug.com/13926 . We should try and find if we set a value in the WindowWin or WidgetWin (or somewhere) window creation calls and just ditch it. Daniel, feel free to whip up a patch, if it works Ben or I can review. PK --~--~-~--~~~---~--~~ Chromium Developers mailing list: chromium-dev@googlegroups.com View archives, change email options, or unsubscribe: http://groups.google.com/group/chromium-dev -~--~~~~--~~--~--~---
[chromium-dev] Re: How to change the cursor smoothly for a view
On Mon, Jun 15, 2009 at 11:13 PM, Daniel Cowx daniel.c...@gmail.com wrote: Changing the default class cursor to NULL in widget_win.cc makes not difference that I can see. Any other thoughts? Look at all the classes along the inheritance hierarchy between you and the root and see if anyone else is setting the default cursor class. PK --~--~-~--~~~---~--~~ Chromium Developers mailing list: chromium-dev@googlegroups.com View archives, change email options, or unsubscribe: http://groups.google.com/group/chromium-dev -~--~~~~--~~--~--~---
[chromium-dev] Re: How to change the cursor smoothly for a view
Sure, I'll take care of this. It'll have to wait a few days though as I broke my index finger and I'm having a bit of a time typing right now. Hope that's cool. Cheers, Daniel On Jun 11, 2:55 pm, Ben Goodger (Google) b...@chromium.org wrote: It's in the class registration function in widget_win.cc -Ben On Thu, Jun 11, 2009 at 2:52 PM, Peter Kastingpkast...@google.com wrote: On Thu, Jun 11, 2009 at 2:48 PM, Ben Goodger (Google) b...@chromium.org wrote: Daniel, do you want to try making this change instead? It'll be pretty obvious to you if it doesn't work. Filed as crbug.com/13926 . We should try and find if we set a value in the WindowWin or WidgetWin (or somewhere) window creation calls and just ditch it. Daniel, feel free to whip up a patch, if it works Ben or I can review. PK --~--~-~--~~~---~--~~ Chromium Developers mailing list: chromium-dev@googlegroups.com View archives, change email options, or unsubscribe: http://groups.google.com/group/chromium-dev -~--~~~~--~~--~--~---
[chromium-dev] Re: How to change the cursor smoothly for a view
No problem. Get well soon! On Sat, Jun 13, 2009 at 3:55 PM, Daniel Cowxdaniel.c...@gmail.com wrote: Sure, I'll take care of this. It'll have to wait a few days though as I broke my index finger and I'm having a bit of a time typing right now. Hope that's cool. Cheers, Daniel On Jun 11, 2:55 pm, Ben Goodger (Google) b...@chromium.org wrote: It's in the class registration function in widget_win.cc -Ben On Thu, Jun 11, 2009 at 2:52 PM, Peter Kastingpkast...@google.com wrote: On Thu, Jun 11, 2009 at 2:48 PM, Ben Goodger (Google) b...@chromium.org wrote: Daniel, do you want to try making this change instead? It'll be pretty obvious to you if it doesn't work. Filed as crbug.com/13926 . We should try and find if we set a value in the WindowWin or WidgetWin (or somewhere) window creation calls and just ditch it. Daniel, feel free to whip up a patch, if it works Ben or I can review. PK --~--~-~--~~~---~--~~ Chromium Developers mailing list: chromium-dev@googlegroups.com View archives, change email options, or unsubscribe: http://groups.google.com/group/chromium-dev -~--~~~~--~~--~--~---
[chromium-dev] Re: How to change the cursor smoothly for a view
I've fixed this flickering problem by calling ::SetClassLong(hwnd, GCL_HCURSOR, NULL) within my OnMouseEntered and then I reset it back to the original class cursor in OnMouseExited. Not sure if this is a reasonable solution or if you even think this is a problem. If so, I can file a bug report and submit this change for review. Cheers, Daniel On Jun 10, 10:08 pm, Daniel Cowx daniel.c...@gmail.com wrote: Actually, I see this flickering on a plain old view::Link as well. You can see it if you move the cursor back and forth on say the open source software link on the Chromium About dialog. On Jun 10, 9:42 pm, Ben Goodger (Google) b...@chromium.org wrote: I don't know, check WidgetWin. I would be slightly surprised though... we use GetCursorForPoint in a couple of places and haven't had issues... -Ben On Wed, Jun 10, 2009 at 9:39 PM, Daniel Cowxdaniel.c...@gmail.com wrote: Hi Ben, I'm getting the flickering even when I dont have any children in my view. I tried overridding GetViewForPoint for my view class and returning this, but I still get this flicker (with or without the label and bitmap being present). According to MSDN @http://msdn.microsoft.com/en-us/library/ms648393(VS.85).aspx snip make sure the class cursor for the specified window's class is set to NULL. If the class cursor is not NULL, the system restores the class cursor each time the mouse is moved. /snip Could this be the culprit? On Jun 10, 9:05 pm, Ben Goodger (Google) b...@chromium.org wrote: You want to override GetViewForPoint on the container view and return this, rather than allowing the default implementation of the function to propagate into the base class impl. The reason you're getting flicker is that the default impl of RootView::UpdateCursor calls GetViewForPoint which ends up asking both the label and the text and the container view for the cursor, so its constantly getting reset as you move your mouse over it. -Ben On Wed, Jun 10, 2009 at 8:55 PM, Daniel Cowxdaniel.c...@gmail.com wrote: I've got a composite view that consists of a SkBitmap and views::Label. I'd like to use IDC_HAND (hand cursor) for this composite view so I've overridden view::GetCursorForPoint(...) Though this kinda works, it causes the cursor to jitter/flicker as it calls this function repeatedly based on the current cursor coordinates within the view. How can I implement the desired functionality without this flickering? I've also tried overriding view::OnMouseEntered() and view::OnMouseExited() and manually calling ::SetCursor() to no avail. Can someone please shed some light. Thanks, Daniel --~--~-~--~~~---~--~~ Chromium Developers mailing list: chromium-dev@googlegroups.com View archives, change email options, or unsubscribe: http://groups.google.com/group/chromium-dev -~--~~~~--~~--~--~---
[chromium-dev] Re: How to change the cursor smoothly for a view
On Thu, Jun 11, 2009 at 12:26 AM, Daniel Cowx daniel.c...@gmail.com wrote: I've fixed this flickering problem by calling ::SetClassLong(hwnd, GCL_HCURSOR, NULL) within my OnMouseEntered and then I reset it back to the original class cursor in OnMouseExited. Not sure if this is a reasonable solution or if you even think this is a problem. If so, I can file a bug report and submit this change for review. Would it be better to just do this in your class' constructor? Also if there are problems like this with existing classes please file bugs, and since you have some idea of the fix consider fixing them. Maybe one of the base view classes should do this fix? PK --~--~-~--~~~---~--~~ Chromium Developers mailing list: chromium-dev@googlegroups.com View archives, change email options, or unsubscribe: http://groups.google.com/group/chromium-dev -~--~~~~--~~--~--~---
[chromium-dev] Re: How to change the cursor smoothly for a view
On Thu, Jun 11, 2009 at 9:58 AM, Peter Kasting pkast...@google.com wrote: Also if there are problems like this with existing classes please file bugs, and since you have some idea of the fix consider fixing them. It looks like maybe this problem occurs when mousing over text in the Omnibox -- on Vista my cursor seems to flicker between the pointer and the I-beam. Ben, do you see this? This seems like a regression (and a pretty noticeable one). Will file if you confirm. PK --~--~-~--~~~---~--~~ Chromium Developers mailing list: chromium-dev@googlegroups.com View archives, change email options, or unsubscribe: http://groups.google.com/group/chromium-dev -~--~~~~--~~--~--~---
[chromium-dev] Re: How to change the cursor smoothly for a view
On Thu, Jun 11, 2009 at 2:38 PM, Ben Goodger (Google) b...@chromium.orgwrote: Is the default cursor config in the window class even necessary? Isn't the default pointer the arrow anyway? Maybe we could just remove it from WindowWin. As long as Windows doesn't make the mouse cursor disappear by default when doing that, I say let's do it. Want me to file something, or you want to just patch this? PK --~--~-~--~~~---~--~~ Chromium Developers mailing list: chromium-dev@googlegroups.com View archives, change email options, or unsubscribe: http://groups.google.com/group/chromium-dev -~--~~~~--~~--~--~---
[chromium-dev] Re: How to change the cursor smoothly for a view
It's worth a shot. We should make sure this is one of the WNDCLASSEX fields that when not set causes the window not to be created, obviously! -Ben On Thu, Jun 11, 2009 at 2:40 PM, Peter Kastingpkast...@google.com wrote: On Thu, Jun 11, 2009 at 2:38 PM, Ben Goodger (Google) b...@chromium.org wrote: Is the default cursor config in the window class even necessary? Isn't the default pointer the arrow anyway? Maybe we could just remove it from WindowWin. As long as Windows doesn't make the mouse cursor disappear by default when doing that, I say let's do it. Want me to file something, or you want to just patch this? PK --~--~-~--~~~---~--~~ Chromium Developers mailing list: chromium-dev@googlegroups.com View archives, change email options, or unsubscribe: http://groups.google.com/group/chromium-dev -~--~~~~--~~--~--~---
[chromium-dev] Re: How to change the cursor smoothly for a view
On Thu, Jun 11, 2009 at 2:48 PM, Ben Goodger (Google) b...@chromium.orgwrote: Daniel, do you want to try making this change instead? It'll be pretty obvious to you if it doesn't work. Filed as crbug.com/13926 . We should try and find if we set a value in the WindowWin or WidgetWin (or somewhere) window creation calls and just ditch it. Daniel, feel free to whip up a patch, if it works Ben or I can review. PK --~--~-~--~~~---~--~~ Chromium Developers mailing list: chromium-dev@googlegroups.com View archives, change email options, or unsubscribe: http://groups.google.com/group/chromium-dev -~--~~~~--~~--~--~---
[chromium-dev] Re: How to change the cursor smoothly for a view
It's in the class registration function in widget_win.cc -Ben On Thu, Jun 11, 2009 at 2:52 PM, Peter Kastingpkast...@google.com wrote: On Thu, Jun 11, 2009 at 2:48 PM, Ben Goodger (Google) b...@chromium.org wrote: Daniel, do you want to try making this change instead? It'll be pretty obvious to you if it doesn't work. Filed as crbug.com/13926 . We should try and find if we set a value in the WindowWin or WidgetWin (or somewhere) window creation calls and just ditch it. Daniel, feel free to whip up a patch, if it works Ben or I can review. PK --~--~-~--~~~---~--~~ Chromium Developers mailing list: chromium-dev@googlegroups.com View archives, change email options, or unsubscribe: http://groups.google.com/group/chromium-dev -~--~~~~--~~--~--~---
[chromium-dev] Re: How to change the cursor smoothly for a view
Hi Ben, I'm getting the flickering even when I dont have any children in my view. I tried overridding GetViewForPoint for my view class and returning this, but I still get this flicker (with or without the label and bitmap being present). According to MSDN @ http://msdn.microsoft.com/en-us/library/ms648393(VS.85).aspx snip make sure the class cursor for the specified window's class is set to NULL. If the class cursor is not NULL, the system restores the class cursor each time the mouse is moved. /snip Could this be the culprit? On Jun 10, 9:05 pm, Ben Goodger (Google) b...@chromium.org wrote: You want to override GetViewForPoint on the container view and return this, rather than allowing the default implementation of the function to propagate into the base class impl. The reason you're getting flicker is that the default impl of RootView::UpdateCursor calls GetViewForPoint which ends up asking both the label and the text and the container view for the cursor, so its constantly getting reset as you move your mouse over it. -Ben On Wed, Jun 10, 2009 at 8:55 PM, Daniel Cowxdaniel.c...@gmail.com wrote: I've got a composite view that consists of a SkBitmap and views::Label. I'd like to use IDC_HAND (hand cursor) for this composite view so I've overridden view::GetCursorForPoint(...) Though this kinda works, it causes the cursor to jitter/flicker as it calls this function repeatedly based on the current cursor coordinates within the view. How can I implement the desired functionality without this flickering? I've also tried overriding view::OnMouseEntered() and view::OnMouseExited() and manually calling ::SetCursor() to no avail. Can someone please shed some light. Thanks, Daniel --~--~-~--~~~---~--~~ Chromium Developers mailing list: chromium-dev@googlegroups.com View archives, change email options, or unsubscribe: http://groups.google.com/group/chromium-dev -~--~~~~--~~--~--~---
[chromium-dev] Re: How to change the cursor smoothly for a view
I don't know, check WidgetWin. I would be slightly surprised though... we use GetCursorForPoint in a couple of places and haven't had issues... -Ben On Wed, Jun 10, 2009 at 9:39 PM, Daniel Cowxdaniel.c...@gmail.com wrote: Hi Ben, I'm getting the flickering even when I dont have any children in my view. I tried overridding GetViewForPoint for my view class and returning this, but I still get this flicker (with or without the label and bitmap being present). According to MSDN @ http://msdn.microsoft.com/en-us/library/ms648393(VS.85).aspx snip make sure the class cursor for the specified window's class is set to NULL. If the class cursor is not NULL, the system restores the class cursor each time the mouse is moved. /snip Could this be the culprit? On Jun 10, 9:05 pm, Ben Goodger (Google) b...@chromium.org wrote: You want to override GetViewForPoint on the container view and return this, rather than allowing the default implementation of the function to propagate into the base class impl. The reason you're getting flicker is that the default impl of RootView::UpdateCursor calls GetViewForPoint which ends up asking both the label and the text and the container view for the cursor, so its constantly getting reset as you move your mouse over it. -Ben On Wed, Jun 10, 2009 at 8:55 PM, Daniel Cowxdaniel.c...@gmail.com wrote: I've got a composite view that consists of a SkBitmap and views::Label. I'd like to use IDC_HAND (hand cursor) for this composite view so I've overridden view::GetCursorForPoint(...) Though this kinda works, it causes the cursor to jitter/flicker as it calls this function repeatedly based on the current cursor coordinates within the view. How can I implement the desired functionality without this flickering? I've also tried overriding view::OnMouseEntered() and view::OnMouseExited() and manually calling ::SetCursor() to no avail. Can someone please shed some light. Thanks, Daniel --~--~-~--~~~---~--~~ Chromium Developers mailing list: chromium-dev@googlegroups.com View archives, change email options, or unsubscribe: http://groups.google.com/group/chromium-dev -~--~~~~--~~--~--~---
[chromium-dev] Re: How to change the cursor smoothly for a view
Actually, I see this flickering on a plain old view::Link as well. You can see it if you move the cursor back and forth on say the open source software link on the Chromium About dialog. On Jun 10, 9:42 pm, Ben Goodger (Google) b...@chromium.org wrote: I don't know, check WidgetWin. I would be slightly surprised though... we use GetCursorForPoint in a couple of places and haven't had issues... -Ben On Wed, Jun 10, 2009 at 9:39 PM, Daniel Cowxdaniel.c...@gmail.com wrote: Hi Ben, I'm getting the flickering even when I dont have any children in my view. I tried overridding GetViewForPoint for my view class and returning this, but I still get this flicker (with or without the label and bitmap being present). According to MSDN @http://msdn.microsoft.com/en-us/library/ms648393(VS.85).aspx snip make sure the class cursor for the specified window's class is set to NULL. If the class cursor is not NULL, the system restores the class cursor each time the mouse is moved. /snip Could this be the culprit? On Jun 10, 9:05 pm, Ben Goodger (Google) b...@chromium.org wrote: You want to override GetViewForPoint on the container view and return this, rather than allowing the default implementation of the function to propagate into the base class impl. The reason you're getting flicker is that the default impl of RootView::UpdateCursor calls GetViewForPoint which ends up asking both the label and the text and the container view for the cursor, so its constantly getting reset as you move your mouse over it. -Ben On Wed, Jun 10, 2009 at 8:55 PM, Daniel Cowxdaniel.c...@gmail.com wrote: I've got a composite view that consists of a SkBitmap and views::Label. I'd like to use IDC_HAND (hand cursor) for this composite view so I've overridden view::GetCursorForPoint(...) Though this kinda works, it causes the cursor to jitter/flicker as it calls this function repeatedly based on the current cursor coordinates within the view. How can I implement the desired functionality without this flickering? I've also tried overriding view::OnMouseEntered() and view::OnMouseExited() and manually calling ::SetCursor() to no avail. Can someone please shed some light. Thanks, Daniel --~--~-~--~~~---~--~~ Chromium Developers mailing list: chromium-dev@googlegroups.com View archives, change email options, or unsubscribe: http://groups.google.com/group/chromium-dev -~--~~~~--~~--~--~---
