write text

Hi niku,

You may use GUIX, add a prompt widget and set its contents using gx_prompt_text_set. This is the easiest way of displaying a text on the screen.

Please find GUIX user's manual at SSP Website (X-Ware™ Component Documents for Renesas Synergy™).

Regards,
adboc

how i can write any text and single character through coding and without use any prompt?

Hi niku,

Even though you would like to draw a simple string like "Hello world", you should draw it pixel-by-pixel. Assuming you have a buffer[width*height], the application needs to fill required pixels in the buffer like buffer[x + width*y] = pixel_data.

This might be quite time-consuming to write a code drawing even a simple text (pixel "map" for each character). I would rather go with GUIX and prompt with a custom font if needed.

Regards,
adboc

okay. thanks...!
can you please give me this type of basic string code so i take a reference and implement in my project..!

Hi niku,

The following project draws "HELLO" on the screen (SK-S7G2, SSP 1.4.0).

GLCDC_1.zip

Hope it helps.

Regards,
adboc

In your code not showing and string in my display i am using custom board
and one more thing is i am using gx_canvans_text_draw() function in my code but not showing in text on disply as comapre to if i use gx_canvas_pie or ellips() like this type function i use than it is show in my display..

so what i can do?

Hi niku,

My understanding was you would like to draw a text without using GUIX, but now I understand this is not the case here. Have you called gx_context_font_set before gx_canvas_text_draw? Where gx_canvas_* functions are called, in a draw handler function? This is the recommended place for custom canvas drawing.

Regards,
adboc

okay.
Tell me one thing.....
if i want to write text or any character on display okay.
so which guix function i can use gx_canvas, gx_propmpt,gx_pixel,or etc....???.
These are all things i am confused which one i take... i can't understand ..

And one more thing is i made one program grid line in that i was used gx_canvas _pixel_draw function and this program working is good and showing on display girdline.
but now in that program i want to mention some text in particular position in my gridline line project so i put gx_canvas _text_draw() function oky. but it is not show any text on display..

so these are the scenario Which I say to you i hope you understand my problem..
please guide me what should i do?

Hi niku,

Have you set the font before using gx_context_font_set? I have implemented the following window drawing function and I see "Hello" text on the screen:

VOID main_window_draw(GX_WINDOW *widget)
{
   SSP_PARAMETER_NOT_USED(widget);
   gx_context_brush_define(GX_COLOR_ID_SELECTED_TEXT, GX_COLOR_ID_SELECTED_TEXT,
                           GX_BRUSH_ALIAS | GX_BRUSH_SOLID_FILL);
   gx_context_brush_width_set(1);

   gx_context_font_set(GX_FONT_ID_PROMPT);
   gx_canvas_text_draw(10, 10, "Hello", 5);
}

Regards,
adboc

thanks adboc.. your code is working properly..

and...
i want to know one thing ...sir
i want to touch that particular string and some particular box or some position...
so please suggest me how i can implement touch functionality?

Hi niku,

The easiest way is to create a custom widget (gx_widget_create) and assign your drawing function (to draw a text) and event handler (to handle PEN_UP/PEN_DOWN) events. I suggest looking at GUIX user's guide (link "X-Ware™ Component Documents for Renesas Synergy™" at SSP website).

Regards,
adboc

can you share me this type of code if you have for reference purpose...?

?

can you give me reference code?

Hi Niku-
I suggest you look over these examples for "GUIX Hello World". They should provide code examples for your target board. Try them out and then post any questions you might have.

Warren

okay warren...
But..... Tell me one thing if i not used any prompt,widget etc in guix .... so how i implement touch function for only particular position my touch function is work?

Hi Niku-
Let me understand. You want to implement a touch functions without using GUIX?

Warren

Hi Niku-
Let me understand. You want to implement a touch functions without using GUIX?

Warren

VOID main_window_draw(GX_WINDOW *widget)
{
SSP_PARAMETER_NOT_USED(widget);
gx_context_brush_define(GX_COLOR_ID_SELECTED_TEXT, GX_COLOR_ID_SELECTED_TEXT,
GX_BRUSH_ALIAS | GX_BRUSH_SOLID_FILL);
gx_context_brush_width_set(1);

gx_context_font_set(GX_FONT_ID_PROMPT);
gx_canvas_text_draw(10, 10, "Hello", 5);
}

i made this function oky and hello string is properly display but now i want to that particular string(e.g hello) give selection means while i touch hello then hello is select so how i can implement touch functionality at particular position ?

did you understood my problem?

Hi Niku-
I believe you want to detect a touch event at an arbitrary location. GUIX manages touch events via Widgets. I suggest you read over the GUIX User's Manual on Widgets and Events. The Pen_Up and Pen_Down events are probably what you need while using a custom widget to define the window for capturing the touch events.

Warren