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A few extra comments for table-spreadsheet.

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Also small but unnecessary code change to reset row_edit/col
to zero after editing for example clarity.

Unnecessary b/c those vars are ignored anyway when input
visibility turned off, so change is more cosmetic codewise.
This commit is contained in:
Greg Ercolano 2020-07-13 09:47:26 -07:00
parent 9925b0f128
commit 44375763aa
1 changed files with 5 additions and 3 deletions
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8
examples/table-spreadsheet.cxx
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@ -46,11 +46,11 @@ public:
when(FL_WHEN_NOT_CHANGED|when()); when(FL_WHEN_NOT_CHANGED|when());
// Create input widget that we'll use whenever user clicks on a cell // Create input widget that we'll use whenever user clicks on a cell
input = new Fl_Int_Input(W/2,H/2,0,0); input = new Fl_Int_Input(W/2,H/2,0,0);
input->hide(); input->hide(); // hide until needed
input->callback(input_cb, (void*)this); input->callback(input_cb, (void*)this);
input->when(FL_WHEN_ENTER_KEY_ALWAYS); // callback triggered when user hits Enter input->when(FL_WHEN_ENTER_KEY_ALWAYS); // callback triggered when user hits Enter
input->maximum_size(5); input->maximum_size(5);
input->color(FL_YELLOW); input->color(FL_YELLOW); // yellow to standout during editing
for (int c = 0; c < MAX_COLS; c++) for (int c = 0; c < MAX_COLS; c++)
for (int r = 0; r < MAX_ROWS; r++) for (int r = 0; r < MAX_ROWS; r++)
values[r][c] = c + (r*MAX_COLS); // initialize cells values[r][c] = c + (r*MAX_COLS); // initialize cells
@ -81,12 +81,14 @@ public:
input->value(s); input->value(s);
input->position(0,strlen(s)); // Select entire input field input->position(0,strlen(s)); // Select entire input field
input->show(); // Show the input widget, now that we've positioned it input->show(); // Show the input widget, now that we've positioned it
input->take_focus(); input->take_focus(); // Put keyboard focus into the input widget
} }
// Tell the input widget it's done editing, and to 'hide' // Tell the input widget it's done editing, and to 'hide'
void done_editing() { void done_editing() {
if (input->visible()) { // input widget visible, ie. edit in progress? if (input->visible()) { // input widget visible, ie. edit in progress?
set_value_hide(); // Transfer its current contents to cell and hide set_value_hide(); // Transfer its current contents to cell and hide
row_edit = 0; // Disable these until needed again
col_edit = 0;
} }
} }
// Return the sum of all rows in this column // Return the sum of all rows in this column