One of my hobbies is to get ABAP to make things that were not really planned in the design of the language...so when I learned how to put colors on ALV cells...I always had the idea to make something using that...so, I came out with a Paint like.
In this scenario, we have 4 available colors, that get activated by doing a doble click on each cell...if the cell is empty...it's color change...if we double click again...the color changes again...and so on until we hit the cell is empty again, so we can start all over again.
Here's a pic, so you can know what I'm talking about...
And this is the source code...I hope you like it -;)
REPORT zalv_painting NO STANDARD PAGE HEADING.
TYPE-POOLS: abap.
CLASS lcl_event_receiver DEFINITION DEFERRED.
DATA: it_fieldcatalog TYPE lvc_t_fcat,
wa_fcat TYPE lvc_s_fcat,
dataref TYPE REF TO data,
new_line TYPE REF TO data,
l_fieldname TYPE string,
data_catalog TYPE REF TO data,
t_stable TYPE STANDARD TABLE OF
lvc_s_stbl WITH HEADER LINE,
ct_fieldcat TYPE lvc_t_fcat,
gs_layout TYPE lvc_s_layo,
gs_variant TYPE disvariant,
custom_container TYPE REF TO
cl_gui_custom_container,
it_color TYPE TABLE OF lvc_s_scol,
it_color_aux TYPE TABLE OF lvc_s_scol,
wa_color_aux TYPE lvc_s_scol,
it_celltab TYPE lvc_t_styl,
event_receiver TYPE REF TO lcl_event_receiver,
grid1 TYPE REF TO cl_gui_alv_grid,
mycontainer TYPE scrfname VALUE 'CUSTOM_ALV',
ls_celltab TYPE lvc_s_styl,
wa_color TYPE lvc_s_scol,
l_color TYPE lvc_col,
l_tabix(2) TYPE c,
ok_code TYPE sy-ucomm,
x_save.
FIELD-SYMBOLS: <row> TYPE table,
<l_line> TYPE ANY,
<l_field> TYPE ANY,
<fs_catalog> TYPE lvc_s_fcat,
<fs_color> LIKE LINE OF it_color,
<fs_color_aux> LIKE LINE OF it_color_aux,
<ct_fieldcat> LIKE LINE OF ct_fieldcat.
*-----------------------------------------------------*
* CLASS LCL_EVENT_RECEIVER DEFINITION *
*-----------------------------------------------------*
CLASS lcl_event_receiver DEFINITION.
PUBLIC SECTION.
METHODS: handle_double_click
FOR EVENT double_click OF cl_gui_alv_grid
IMPORTING e_row e_column.
ENDCLASS. "LCL_EVENT_RECEIVER DEFINITION
*-----------------------------------------------------*
* CLASS lcl_event_receiver IMPLEMENTATION *
*-----------------------------------------------------*
CLASS lcl_event_receiver IMPLEMENTATION.
METHOD handle_double_click.
PERFORM paint_cell USING e_row e_column.
ENDMETHOD. "handle_double_click
ENDCLASS. "LCL_EVENT_RECEIVER IMPLEMENTATION
*=====================================================*
* START-OF-SELECTION *
*=====================================================*
START-OF-SELECTION.
PERFORM create_structure.
PERFORM fill_layout.
PERFORM generate_alv_catalog.
PERFORM call_alv.
CALL SCREEN 0100.
*&----------------------------------------------------*
*& Form CREATE_STRUCTURE *
*&----------------------------------------------------*
FORM create_structure.
DO 20 TIMES.
l_tabix = l_tabix + 1.
CONCATENATE 'FIELD' l_tabix INTO l_fieldname.
wa_fcat-fieldname = l_fieldname.
wa_fcat-ref_table = 'PERF_STRING_STRUCT'.
wa_fcat-ref_field = 'DATA'.
APPEND wa_fcat TO it_fieldcatalog.
ENDDO.
wa_fcat-fieldname = 'COLOR'.
wa_fcat-ref_table = 'PERF_STRING_STRUCT'.
wa_fcat-ref_field = 'DATA'.
APPEND wa_fcat TO it_fieldcatalog.
wa_fcat-fieldname = 'COLOR_CELL'.
wa_fcat-ref_table = 'RESC_DEFAULT_ALV_FIELDS'.
wa_fcat-ref_field = 'COLORTAB'.
APPEND wa_fcat TO it_fieldcatalog.
CALL METHOD cl_alv_table_create=>create_dynamic_table
EXPORTING
it_fieldcatalog = it_fieldcatalog
IMPORTING
ep_table = dataref
EXCEPTIONS
generate_subpool_dir_full = 1
OTHERS = 2.
ASSIGN dataref->* TO <row>.
CREATE DATA new_line LIKE LINE OF <row>.
ASSIGN new_line->* TO <l_line>.
DO 40 TIMES.
INSERT <l_line> INTO TABLE <row>.
ENDDO.
ENDFORM. " CREATE_STRUCTURE
*&----------------------------------------------------*
*& Form FILL_LAYOUT *
*&----------------------------------------------------*
FORM fill_layout.
gs_layout-sel_mode = 'A'.
gs_layout-ctab_fname = 'COLOR_CELL'.
ENDFORM. " FILL_LAYOUT
*&-----------------------------------------------------*
*& Form GENERATE_ALV_CATALOG *
*&-----------------------------------------------------*
FORM generate_alv_catalog.
CREATE DATA data_catalog TYPE lvc_s_fcat.
ASSIGN data_catalog->* TO <fs_catalog>.
CLEAR l_tabix.
DO 20 TIMES.
l_tabix = l_tabix + 1.
CONCATENATE 'FIELD' l_tabix INTO l_fieldname.
APPEND INITIAL LINE TO ct_fieldcat
ASSIGNING <ct_fieldcat>.
<ct_fieldcat>-fieldname = l_fieldname.
ENDDO.
ENDFORM. " GENERATE_ALV_CATALOG
*&------------------------------------------------------*
*& Form CALL_ALV *
*&------------------------------------------------------*
FORM call_alv.
IF custom_container IS INITIAL.
CREATE OBJECT custom_container
EXPORTING
container_name = mycontainer
EXCEPTIONS
cntl_error = 1
cntl_system_error = 2
create_error = 3
lifetime_error = 4
lifetime_dynpro_dynpro_link = 5.
ENDIF.
CREATE OBJECT grid1
EXPORTING
i_parent = custom_container.
CREATE OBJECT event_receiver.
SET HANDLER event_receiver->handle_double_click FOR grid1.
CALL METHOD grid1->set_table_for_first_display
EXPORTING
is_variant = gs_variant
i_save = x_save
i_default = 'X'
is_layout = gs_layout
CHANGING
it_fieldcatalog = ct_fieldcat
it_outtab = <row>.
ENDFORM. " CALL_ALV
*&----------------------------------------------------*
*& Module STATUS_0100 OUTPUT *
*&----------------------------------------------------*
MODULE status_0100 OUTPUT.
SET PF-STATUS '0100'.
SET TITLEBAR 'TITLE'.
ENDMODULE. " STATUS_0100 OUTPUT
*&----------------------------------------------------*
*& Module USER_COMMAND_0100 INPUT *
*&----------------------------------------------------*
MODULE user_command_0100 INPUT.
ok_code = sy-ucomm.
CASE ok_code.
WHEN 'BACK' OR 'STOP' OR 'CANCEL'.
SET SCREEN 0.
LEAVE SCREEN.
ENDCASE.
ENDMODULE. " USER_COMMAND_0100 INPUT
*&----------------------------------------------------*
*& Form PAINT_CELL *
*&----------------------------------------------------*
FORM paint_cell USING p_row
p_column.
READ TABLE <row> ASSIGNING <l_line>
INDEX p_row.
IF sy-subrc EQ 0 AND <l_line> IS ASSIGNED.
ASSIGN COMPONENT 22 OF STRUCTURE <l_line> TO <l_field>.
it_color[] = <l_field>.
READ TABLE it_color ASSIGNING <fs_color>
WITH KEY fname = p_column.
IF sy-subrc EQ 0 AND <fs_color> IS ASSIGNED.
CASE <fs_color>-color-col.
WHEN space or 2.
l_color = 1.
WHEN 1.
l_color = 4.
WHEN 4.
l_color = 5.
WHEN 5.
l_color = 6.
WHEN 6.
l_color = 2. "White
ENDCASE.
MOVE l_color TO <fs_color>-color-col.
MOVE p_column TO <fs_color>-fname.
ELSE.
l_color = 1.
MOVE l_color TO wa_color-color-col.
MOVE p_column TO wa_color-fname.
APPEND wa_color TO it_color.
ENDIF.
ASSIGN COMPONENT 22 OF STRUCTURE <l_line> TO <l_field>.
<l_field> = it_color[].
CALL METHOD grid1->refresh_table_display
EXPORTING
is_stable = t_stable.
ENDIF.
ENDFORM. " PAINT_CELL
Greetings,
Blag.
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