CN102467328A

CN102467328A - Method for managing pop-up window based on embedded system graphics library

Info

Publication number: CN102467328A
Application number: CN2010105477254A
Authority: CN
Inventors: 南习清
Original assignee: Konka Group Co Ltd
Current assignee: Konka Group Co Ltd
Priority date: 2010-11-17
Filing date: 2010-11-17
Publication date: 2012-05-23

Abstract

The invention discloses a method for managing a pop-up window based on an embedded system graphics library. The method comprises the following steps of: when a new window is required to be popped up in a system, judging whether the pop-up window exists in the system; if the pop-up window exists in the system, automatically logging off the system, and destroying the existing pop-up window to make a focal point of the pop-up window lost; and creating a new pop-up window, acquiring the focal point, and responding to a key message event. By adoption of the method, the problem that a key mistakenly responds or does not respond due to error transfer and loss of the focal point of the window caused by popping-up of a plurality of windows can be solved.

Description

A kind of method of the management pop-up window based on the embedded system shape library

Technical field

The present invention relates to the embedded system field, relate in particular to a kind of method of the management pop-up window based on the embedded system shape library.

Background technology

Pop-up window is a common GUI window, uses very extensively, and be exactly a kind of pop-up window like common dialog box.No matter still on the graphical interfaces at embedded device, can see pop-up window everywhere, give user's display reminding information, warning message, carry out information interaction etc. with the user at PC.

But general pop-up window is the pop-up window under the situation of known parent window, and perhaps system at a time only can trigger a pop-up window, can not occur also responding new accident and the situation of pop-up window when there being existing pop-up window.

In specific embedded type GUI application program, just exist to have a plurality of Event triggered pop-up windows.As operating as the user, trigger out a pop-up window, and this moment the automatic trigger event of system or telecommunication network incident, require to eject new pop-up window, at this time need in system, carry out unified management to pop-up window.

When a plurality of incidents trigger pop-up window simultaneously, window focus mistake or focus loss can appear and cause button correctly not respond or not the response situation.

Therefore, how to solve a plurality of bullet windows in the prior art and cause button correctly not respond or the problem of response not, become one of technical matters that current urgent need solves.

Summary of the invention

The method that the purpose of this invention is to provide a kind of management pop-up window based on the embedded system shape library, it can prevent to cause window focus transmission mistake, focus loss to cause key errors reaction or unresponsive problem because of ejecting a plurality of windows.

For solving technical matters of the present invention; The present invention discloses a kind of method of the management pop-up window based on the embedded system shape library, it is characterized in that, when needing to eject a new window in the system; Whether elder generation is judged has had pop-up window to exist in the system; If there has been pop-up window to exist in the system, then elder generation nullifies automatically and destroys original pop-up window, and makes it lose focus; And then create new pop-up window, obtain focus and response button message event.

Compared with prior art; Pop-up window management method of the present invention; Can prevent to cause window focus transmission mistake, focus loss to cause key errors reaction or problem such as reactionless because of ejecting a plurality of windows; The pop-up window of last triggering is an active window in the assurance system, guarantees the correct transmission of system focus, the correct response of button.

Description of drawings

Fig. 1 is the process flow diagram that the present invention is based on the management pop-up window method of embedded system shape library.。

Embodiment

As an embodiment of the invention, the present invention is at CC1203 and MSTAR 6i78 hardware platform, based on linux system, realize based on the embedded type GUI shape library of supporting frame buffer (FrameBuffer).

Embedded system gets into window master interface or any one common window interface, and these generic interface might have the user to operate the window of ejection, any pop-up window that also has network, system event to cause.These are uncertain and can appear at the pop-up window of any common window just; If do not adopt unified way to manage; Be easy to cause window focus transmission mistake, focus loss and cause system mistake corresponding event message or response message not, cause the seemingly-dead phenomenon of system.

Correctly transmit with the assurance focus in order to manage these windows that eject arbitrarily, need two global variables of in-system define; The first global variable CWindow*g_pParentWin and the second global variable CWindow*g_pActivePopWin; The first global variable CWindow* g_pParentWin is used for preserving the pointer of the common window of current active, and using RegisterParentWin (CWin*pWin) function is exactly to give this variable assignments; The second global variable CWindow*g_pActivePopWin is used for the pop-up window pointer of saved system current active, and RegisterActivePopWin (CWin*pWin) function is exactly to give this variable assignments.

When need ejecting a new window in the system, judge whether had pop-up window to exist in the system earlier, if having; Then earlier nullify and destroy original pop-up window automatically; And make it lose focus, and then create new pop-up window, obtain focus and response button message event.

See also Fig. 1, system is following to the method step that the bullet window is managed:

Step S1: system start-up, get into the main window interface, calling this window of RegisterParentWin (CWin*pWin) function registration is system's parent window, calls WM_PUSH () function main interface is pressed into the window management stack;

Step S2: get into new common window interface, calling this window of RegisterParentWin (CWin*pWin) function registration is system's parent window, calls WM_PUSH () this window is pressed into the window management stack;

Whether step S3: judging has the user to operate the establishment pop-up window of generation on this common window, if there is not the user to operate the new pop-up window of establishment of generation, gets into step S4; If have the user to operate the new pop-up window of establishment of generation, then get into step S5;

Step S4: judge whether that the incident that triggers new pop-up window takes place, do not take place, then return step S3 if trigger the incident of new pop-up window; If have the incident that triggers new pop-up window to take place, then get into step S5;

Step S5: call RegisterActivePopWin (CWin*pWin) function, registering this new window is the system activity pop-up window; Establishment also shows the pop-up window that this is movable and obtains focus; Get into step S6 then;

Step S6: judge whether that the incident that triggers new pop-up window takes place, do not take place, then return step S3 if trigger the incident of new pop-up window; If have the incident that triggers new pop-up window to take place, then get into step S7;

Step S7: call Vgm_UnRegisterActivePopWin () function earlier, nullify previous activation pop-up window, and hide and perhaps destroy this movable pop-up window; Calling this new incident pop-up window of RegisterActivePopWin (CWin*pWin) function registration then is the system activity pop-up window; Establishment also shows the pop-up window that this is movable and obtains focus; Turn back to step S3 then.

So cycling, system to whether having new pop-up window to judge, needs At time of eject as new window always, nullifies original active window, and with the movable pop-up window of new pop-up window as system.

In step S5 and step S7, create the success of this pop-up window after, need call RegisterActivePopWin (pWin) function and carry out location registration process.The pop-up window function that all establishments are new must return the pop-up window pointer of new establishment, and the pop-up window of all establishments can not get in the window stack of system, and is to use global variable g_pActivePopWin to carry out Unified Treatment.Common window pointer must get in the window stack of system and carry out unified management.

In sum; Realization and way to manage according to pop-up window of the present invention; Just can prevent to cause window focus transmission mistake, focus loss to cause key errors reaction or problem such as reactionless because of ejecting a plurality of windows; The pop-up window of last triggering is an active window in the assurance system, guarantees the correct transmission of system focus, the correct response of button.

Claims

1. method based on the management pop-up window of embedded system shape library; It is characterized in that; When need ejecting a new window in the system, judge whether had pop-up window to exist in the system earlier, if there has been pop-up window to exist in the system; Then elder generation nullifies automatically and destroys original pop-up window, and makes it lose focus; And then create new pop-up window, obtain focus and response button message event.

2. the method for the management pop-up window based on the embedded system shape library according to claim 1; It is characterized in that; If there is not pop-up window to exist in the system, then directly registering this new window is the system activity pop-up window, and creating and show should the activity pop-up window and obtain focus.

3. the method for the management pop-up window based on the embedded system shape library according to claim 1, its concrete steps comprise:

Step S1: system start-up gets into the main window interface;

Step S2: the step that gets into the new common window interface of entering;

Step S5: registering this new window is the system activity pop-up window, creates and shows the pop-up window that this is movable and obtain focus, gets into step S6 then;

Step S7: nullify previous activation pop-up window, and hide and perhaps destroy this movable pop-up window; Registering this new incident pop-up window then is the system activity pop-up window, creates and shows the pop-up window that this is movable and obtain focus, turns back to step S3 then.