CN104063241A - Image synchronous display method and system of host program and COM component - Google Patents
Image synchronous display method and system of host program and COM component Download PDFInfo
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- CN104063241A CN104063241A CN201410247926.0A CN201410247926A CN104063241A CN 104063241 A CN104063241 A CN 104063241A CN 201410247926 A CN201410247926 A CN 201410247926A CN 104063241 A CN104063241 A CN 104063241A
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Abstract
The invention discloses an image synchronous display method and system of a host program and a COM component. An image of a host program sub-window is drawn in the COM component, and is integrated with the image of the COM component, so that when the image of the COM component is moved horizontally by a mouse, the image of the host program sub-window and the image of the COM component can move synchronously, and accordingly, the phenomenon of the asynchronous display is avoided, and the user experiment is improved.
Description
Technical field
The present invention relates to field of computer technology, particularly relate to the method and system of the image synchronization demonstration of a kind of host program and com component.
Background technology
In the software development of Windows system, com component technology is to apply very general and important technology.It is encapsulated as com component the identical code of function, just can by calling this assembly, realize certain function very easily like this, and this class method is exactly the host program of this com component by the program of different programming language exploitations.Such as a map components, its function is to show electronic chart, and host program is the window application of C# exploitation, host program has been used map components to realize the relevant function of map, and it can also create other window and is added on map components simultaneously.The usually design of use of this software architecture right and wrong, can code reuse, and becomes a com component to offer different host programs the identical module package of function and uses.If but com component and host program all relate to image rendering separately, image synchronization so is between the two more difficult often.
In GIS field, the host program impression window that superposes on certain geographic position of map components, the demonstration program that has embedded a 3D in this window shows the actual scene of this position.But this displaying have a defect be exactly map components be to allow user to carry out the translation of map, like this due to the change in geographic position, the position that is superimposed upon so the 3D impression window on it also should change accordingly, need host program to carry out translation to this window, just there is nonsynchronous phenomenon in the window translation of the translation of map and host program like this, map first moves, and is only afterwards window and moves, demonstration poor effect.
The reason that produces this problem is that electronic chart is to show in map components, and demonstration in host program is in impression window, and both carry out in playing up environment same, have therefore occurred drawing the difference on displaying time.In order to address this is that, traditional way is in map translation process, do not move but hide window, after translation map finishes again at reposition display window.This method has been evaded the time difference that translation image and translation window exist, but window is shown and com component in image do not show simultaneously, fundamentally do not solve the problem of image synchronization.
Summary of the invention
Based on above-mentioned situation, the present invention proposes the method and system of the image synchronization demonstration of a kind of host program and com component, make the image of host program subwindow and the image of com component reach the effect of simultaneous display, for this reason, the scheme of employing is as follows.
The method that the image synchronization of host program and com component shows, comprises step:
Hide the subwindow of host program, only show the image of com component;
Obtain view data and the positional information of subwindow;
According to described view data and positional information, at the respective regions of com component image, draw the image of subwindow, make the image co-registration of image and the com component of subwindow.
The system that the image synchronization of host program and com component shows, comprising:
Subwindow is hidden control module, for hiding the subwindow of host program, only shows the image of com component;
Subwindow acquisition of information module, for obtaining view data and the positional information of subwindow;
Image co-registration module, for according to described view data and positional information, at the respective regions of com component image, draws the image of subwindow, makes the image co-registration of image and the com component of subwindow.
The method and system that the image synchronization of host program of the present invention and com component shows, in com component, draw the image of host program subwindow, and by the image co-registration of this image and com component, thereby when mouse translation com component image, the image of host program subwindow and com component image synchronization move, avoided showing nonsynchronous situation, improved user's experience.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the method that shows of the image synchronization of host program of the present invention and com component;
Fig. 2 is the schematic flow sheet of an embodiment of the method that shows of the image synchronization of host program of the present invention and com component;
Fig. 3 is that the method showing in the image synchronization of host program of the present invention and com component is basis, the schematic flow sheet that carries out management and the control of subwindow;
Fig. 4 is the structural representation of the system that shows of the image synchronization of host program of the present invention and com component.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is described in further detail.Should be appreciated that embodiment described herein, only in order to explain the present invention, does not limit protection scope of the present invention.
The method that the image synchronization of host program of the present invention and com component shows, as shown in Figure 1, comprises step:
Step s101, hide the subwindow of host program, only show the image of com component;
Step s102, the view data of obtaining subwindow and positional information;
Step s103, according to described view data and positional information, at the respective regions of com component image, draw the image of subwindow, make the image co-registration of image and the com component of subwindow.
The present invention is put into same playing up in environment by the image of playing up environment in two kinds, and Overlapping display becomes piece image, thereby as a Whole Response mouse translation, reaches synchronization-moving effect.With a specific embodiment, from first to last explain in detail the process of this method below.
Suppose to have a host program P, it has used a com component that shows image, it need to be on certain position of com component subwindow of Overlapping display or an application program (application program also can be understood as a kind of window), and guarantee to carry out in image translation process at assembly, this window or application program can synchronously be followed image and be moved.In order to realize this object, as shown in Figure 2, detailed is explained as follows shown in literary composition in the operation of execution.
Step s201, host program load com component, and assembly carries out the Image Rendering of itself, supposes this assembly drawing area: the upper left corner is (x0, y0), and wide is W, and height is H, and unit is pixel.
Step s202, host program need to show a subwindow WND in the p position (x, y) of assembly, and this window is superimposed upon on com component, wide is w1, and height is h1, and unit is pixel, therefore host program creates this window, and in the demonstration of the enterprising line correlation of this window, the data structure that records this window is { HWND, x, y, w1, h1}, wherein HWND is the handle of this window.
Being more than the part identical with classic method, is below the improvement that this method is made for classic method.
Step s203, hiding WND window, the content at this moment presenting only has the image in com component;
Step s204, host program carry out the registration of subwindow.
In com component, add the registration function of window, host program can carry out by this function the registration of window: host program gets the window handle HWND that will show, and uses registration function that this value is delivered to COM inside.For example: registration function is called RegHostWnd (Long HWnd);
Step s205, com component carry out the location registration process of subwindow.
After COM inside gets window handle HWND, by handle acquiring, arrive position and the size information of window: the window upper left corner (x, y) and wide and high, by handle, also get window DC (Device Context in addition, a data structure of GDI inside) the upper view data showing, and these data are copied to a painting canvas (or internal memory DC, at this, use WndImageData to represent), now, at com component internal record the information of this window { HWND, x, y, w1, h1, WndImageData}.
Step s204-s205 is corresponding with step S102, is in order to obtain the related data of subwindow, for the drafting in com component and fusion are prepared.
The image co-registration of step s206, com component and host program subwindow.
First, in com component, carry out the drafting of content own.Such as if map com component, with regard to first map making.
Secondly, draw the subwindow of registration: traversal com component internal record, get each chartered subwindow information, WndImageData data are plotted to { x, y, w1, on this region of h1}, that is to say and realize the data of subwindow and the data of com component itself are to be plotted in same playing up in environment (to be all plotted on the DC of com component).At this time content out comprises the image of assembly and subwindow itself.The object of step s2011-s206 is the backstage demonstration (subwindow is hidden) that host program still carries out subwindow, and host program passes to com component the handle of subwindow simultaneously, carries out the reproduction of window data in component internal.This is a feature of this case: subwindow shows on backstage, the demonstration image of subwindow front components play up environment in show, guaranteed that the whole picture that presents draws in playing up environment same.
The event that redraws of step s207, processing com component, the image co-registration of real-time update assembly and subwindow.
In the time of com component generation image change, can trigger and redraw, such as carry out translation or other operations in map components, subwindow image also should redraw, and again merges with the replot picture of com component.When the position of subwindow changes, need to again obtain the relevant information of subwindow, and repaint with new information, com component also redraws simultaneously, and the subwindow image after redrawing and the image of com component are fused into the image that a width is new again.Such as: in com component, shown secondary Beijing map, shown a subwindow in map on the position in Tian An-men, what in window, show is the 3D scene of the Forbidden City.After user's translation map, map location has changed, and at this moment window also needs to change accordingly position.Therefore, use this method only need be in translation map process, real-time rendering subwindow.Because being draws in playing up environment same, so map and subwindow synchronously present, the problem that there will not be the demonstration in classic method to interrupt.
The management of step s208, subwindow and control.
Although it is the displaying contents of subwindow and com component itself that user sees, in fact subwindow does not show on foreground, and this method is that the image of subwindow and com component have been carried out merging demonstration.If comprised a lot of buttons in subwindow, during button click, the content of subwindow all can change.This is only according to the method for 1-7, cannot normally show, because user while clicking " button " in interface, this button is not the button of real subwindow, and the image that just com component analog submodule window is drawn out.Therefore,, when user need to operate subwindow, a kind of method that the present invention continues to provide case distribution of subwindow to control, as shown in Figure 3, comprises the following steps.
Step s801, when user carries out mouse action on assembly, obtain the position pos (mpx, mpy) of cursor of mouse, initial point is the upper left corner of assembly, the upper left angle point of com component is (0,0) point;
Step s802, judge that pos is whether in certain subwindow, judge pos whether window x, y, w1, in h1} region, if; would get information { HWND, x, y, w1, h1, the WndImageData} of this subwindow; Judge and whether need subwindow to operate.
The relative position that step s803, computing mouse operate in subwindow.Because pos is with respect to the COM upper left corner, the event location of subwindow is with respect to the subwindow upper left corner.Therefore pos need to be converted into the relative coordinate eventpos of subwindow.Method is eventpos{pos-x, pos-y};
Step s804, to the eventpos position of subwindow, send mouse information.Can use SendMessageAPI to realize.
After step s805, hiding subwindow receive this mouse information, can redraw accordingly.Attention is because subwindow is hidden, and in COM, show or mouse action before subwindow image, therefore need to carry out redrawing of COM.
Step s806, in COM, open a timer, such as the function of this timer be com component when sending mouse information toward subwindow every a time such as 2 milliseconds, the image of the subwindow of handle acquiring by subwindow, and being plotted in COM.If it is a dynamic process that the image of subwindow redraws, that in COM, regularly draws so subwindow also can keep the process of this dynamic change.Such as the image of subwindow, if window shutter effect, the subwindow image that profit shows in this way in COM so also can have window shutter effect.
After step s807, group video in window show, timeing closing device.
S209, so far, has shown image, and also can control subwindow in COM.
Be more than the introduction of the method that shows of the image synchronization of host program of the present invention and com component, introduce the system corresponding with said method below, as shown in Figure 4, comprise with lower module.
Subwindow is hidden control module, for hiding the subwindow of host program, only shows the image of com component;
Subwindow acquisition of information module, for obtaining view data and the positional information of subwindow;
Image co-registration module, for according to described view data and positional information, at the respective regions of com component image, draws the image of subwindow, makes the image co-registration of image and the com component of subwindow.
Image co-registration module is hidden control module with subwindow respectively and is connected with subwindow acquisition of information module, forms native system.
Wherein, described image co-registration module, in the time of can also changing for the image at com component, redraws and merges the image of the image of com component and subwindow; When the image of subwindow changes, again obtain view data and the positional information of subwindow, the respective regions in com component inside, redraws the image of subwindow, redraw the image of com component simultaneously, the subwindow image after redrawing and com component image are merged again.
As a preferred embodiment, native system can also comprise mouse monitoring modular, for monitoring the mouse action on com component, in the time of in mouse action drops on subwindow region, to host program, send mouse information, host program redraws the image of subwindow, and notice image co-registration module is obtained view data and the positional information of subwindow again; Image co-registration module reception notification also obtains view data and the positional information of subwindow again, respective regions in com component inside, redraw the image of subwindow, redraw the image of com component simultaneously, the replot picture of the replot picture of subwindow and com component is merged again.
As a preferred embodiment, described subwindow acquisition of information module is according to the view data of following Procedure Acquisition subwindow and positional information:
In com component, add the registration function of subwindow;
By described registration function, the handle of subwindow is delivered to com component inside;
Inner at com component, by view data and the positional information of described handle acquiring subwindow.
As a preferred embodiment, described image co-registration module is in mouse action drops on subwindow region, and when the image conversion of subwindow has fade effect, the view data of timing acquisition subwindow, and be plotted in com component and redraw image co-registration with com component, until the new images of subwindow is all drawn out.
Method and system contrast conventional art of the present invention, has following advantage:
1, realized the image synchronization demonstration of subwindow and com component.Subwindow shows on backstage, and in COM inside, gets the image of subwindow and carry out COM self image and the fusion of subwindow image, solved the problem that subwindow and com component internal image can not simultaneous displays.
2,, when image synchronization shows, guaranteed control and the display effect of original subwindow.By the analysis meter of COM inside mouse event is calculated, whether be subwindow event, and transmit control message to subwindow, simultaneously by timing acquisition subwindow image, inherited the display effect of subwindow.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. the method that the image synchronization of host program and com component shows, is characterized in that, comprises step:
Hide the subwindow of host program, only show the image of com component;
Obtain view data and the positional information of subwindow;
According to described view data and positional information, at the respective regions of com component image, draw the image of subwindow, make the image co-registration of image and the com component of subwindow.
2. the method that the image synchronization of host program according to claim 1 and com component shows, is characterized in that, also comprises step:
When the image of com component changes, the image of the image of com component and subwindow is redrawn and merged;
When the image of subwindow changes, again obtain view data and the positional information of subwindow, the respective regions in com component inside, redraws the image of subwindow, redraw the image of com component simultaneously, the subwindow image after redrawing and com component image are merged again.
3. the method that the image synchronization of host program according to claim 1 and 2 and com component shows, is characterized in that, also comprises step:
Mouse action on monitoring com component;
In the time of in mouse action drops on subwindow region, to host program, send mouse information, host program redraws the image of subwindow, again obtain view data and the positional information of subwindow, respective regions at com component image, redraw the image of subwindow, redraw the image of com component simultaneously;
The replot picture of the replot picture of subwindow and com component is merged again.
4. the method that the image synchronization of host program according to claim 1 and 2 and com component shows, is characterized in that,
Obtain the view data of subwindow and the process of positional information comprises:
In com component, add the registration function of subwindow;
By described registration function, the handle of subwindow is delivered to com component inside;
Inner at com component, by view data and the positional information of described handle acquiring subwindow.
5. the method that the image synchronization of host program according to claim 3 and com component shows, is characterized in that,
In mouse action drops on subwindow region, and when the image conversion of subwindow has fade effect, the view data of timing acquisition subwindow, and be plotted in com component and redraw image co-registration with com component, until the new images of subwindow is all drawn out.
6. the system that the image synchronization of host program and com component shows, is characterized in that, comprising:
Subwindow is hidden control module, for hiding the subwindow of host program, only shows the image of com component;
Subwindow acquisition of information module, for obtaining view data and the positional information of subwindow;
Image co-registration module, for according to described view data and positional information, at the respective regions of com component image, draws the image of subwindow, makes the image co-registration of image and the com component of subwindow.
7. the system that the image synchronization of host program according to claim 6 and com component shows, is characterized in that,
Described image co-registration module, while also changing for the image at com component, redraws and merges the image of the image of com component and subwindow; When the image of subwindow changes, again obtain view data and the positional information of subwindow, the respective regions in com component inside, redraws the image of subwindow, redraw the image of com component simultaneously, the subwindow image after redrawing and com component image are merged again.
8. the system showing according to the image synchronization of the host program described in claim 6 or 7 and com component, is characterized in that,
Also comprise mouse monitoring modular, for monitoring the mouse action on com component, in the time of in mouse action drops on subwindow region, to host program, send mouse information, host program redraws the image of subwindow, and notice image co-registration module is obtained view data and the positional information of subwindow again;
Image co-registration module reception notification also obtains view data and the positional information of subwindow again, respective regions in com component inside, redraw the image of subwindow, redraw the image of com component simultaneously, the replot picture of the replot picture of subwindow and com component is merged again.
9. the system showing according to the image synchronization of the host program described in claim 6 or 7 and com component, is characterized in that,
Described subwindow acquisition of information module is according to the view data of following Procedure Acquisition subwindow and positional information:
In com component, add the registration function of subwindow;
By described registration function, the handle of subwindow is delivered to com component inside;
Inner at com component, by view data and the positional information of described handle acquiring subwindow.
10. the system that the image synchronization of host program according to claim 8 and com component shows, is characterized in that,
Described image co-registration module is in mouse action drops on subwindow region, and when the image conversion of subwindow has fade effect, the view data of timing acquisition subwindow, and be plotted in com component and redraw image co-registration with com component, until the new images of subwindow is all drawn out.
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