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-rw-r--r--examples/table-spreadsheet.cxx212
1 files changed, 103 insertions, 109 deletions
diff --git a/examples/table-spreadsheet.cxx b/examples/table-spreadsheet.cxx
index 8167f6be3..e276a80d4 100644
--- a/examples/table-spreadsheet.cxx
+++ b/examples/table-spreadsheet.cxx
@@ -1,8 +1,6 @@
//
-// "$Id$"
-//
-// Simple example of an interactive spreadsheet using Fl_Table.
-// Uses Mr. Satan's technique of instancing an Fl_Input around.
+// Simple example of an interactive spreadsheet using Fl_Table.
+// Uses Mr. Satan's technique of instancing an Fl_Input around.
//
// Copyright 1998-2010 by Bill Spitzak and others.
//
@@ -10,11 +8,11 @@
// the file "COPYING" which should have been included with this file. If this
// file is missing or damaged, see the license at:
//
-// http://www.fltk.org/COPYING.php
+// https://www.fltk.org/COPYING.php
//
-// Please report all bugs and problems on the following page:
+// Please see the following page on how to report bugs and issues:
//
-// http://www.fltk.org/str.php
+// https://www.fltk.org/bugs.php
//
#include <stdio.h>
#include <stdlib.h>
@@ -28,17 +26,17 @@ const int MAX_COLS = 10;
const int MAX_ROWS = 10;
class Spreadsheet : public Fl_Table {
- Fl_Int_Input *input; // single instance of Fl_Int_Input widget
- int values[MAX_ROWS][MAX_COLS]; // array of data for cells
- int row_edit, col_edit; // row/col being modified
+ Fl_Int_Input *input; // single instance of Fl_Int_Input widget
+ int values[MAX_ROWS][MAX_COLS]; // array of data for cells
+ int row_edit, col_edit; // row/col being modified
protected:
void draw_cell(TableContext context,int=0,int=0,int=0,int=0,int=0,int=0);
- void event_callback2(); // table's event callback (instance)
- static void event_callback(Fl_Widget*,void *v) { // table's event callback (static)
+ void event_callback2(); // table's event callback (instance)
+ static void event_callback(Fl_Widget*,void *v) { // table's event callback (static)
((Spreadsheet*)v)->event_callback2();
}
- static void input_cb(Fl_Widget*,void* v) { // input widget's callback
+ static void input_cb(Fl_Widget*,void* v) { // input widget's callback
((Spreadsheet*)v)->set_value_hide();
}
@@ -50,12 +48,12 @@ public:
input = new Fl_Int_Input(W/2,H/2,0,0);
input->hide();
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->color(FL_YELLOW);
for (int c = 0; c < MAX_COLS; c++)
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
end();
row_edit = col_edit = 0;
set_selection(0,0,0,0);
@@ -66,129 +64,129 @@ public:
void set_value_hide() {
values[row_edit][col_edit] = atoi(input->value());
input->hide();
- window()->cursor(FL_CURSOR_DEFAULT); // XXX: if we don't do this, cursor can disappear!
+ window()->cursor(FL_CURSOR_DEFAULT); // XXX: if we don't do this, cursor can disappear!
}
// Start editing a new cell: move the Fl_Int_Input widget to specified row/column
// Preload the widget with the cell's current value,
// and make the widget 'appear' at the cell's location.
//
void start_editing(int R, int C) {
- row_edit = R; // Now editing this row/col
+ row_edit = R; // Now editing this row/col
col_edit = C;
- set_selection(R,C,R,C); // Clear any previous multicell selection
+ set_selection(R,C,R,C); // Clear any previous multicell selection
int X,Y,W,H;
- find_cell(CONTEXT_CELL, R,C, X,Y,W,H); // Find X/Y/W/H of cell
- input->resize(X,Y,W,H); // Move Fl_Input widget there
- char s[30]; sprintf(s, "%d", values[R][C]); // Load input widget with cell's current value
+ find_cell(CONTEXT_CELL, R,C, X,Y,W,H); // Find X/Y/W/H of cell
+ input->resize(X,Y,W,H); // Move Fl_Input widget there
+ char s[30]; sprintf(s, "%d", values[R][C]); // Load input widget with cell's current value
input->value(s);
- input->position(0,strlen(s)); // Select entire input field
- input->show(); // Show the input widget, now that we've positioned it
+ input->position(0,strlen(s)); // Select entire input field
+ input->show(); // Show the input widget, now that we've positioned it
input->take_focus();
}
// Tell the input widget it's done editing, and to 'hide'
void done_editing() {
- if (input->visible()) { // input widget visible, ie. edit in progress?
- set_value_hide(); // Transfer its current contents to cell and hide
+ if (input->visible()) { // input widget visible, ie. edit in progress?
+ set_value_hide(); // Transfer its current contents to cell and hide
}
}
// Return the sum of all rows in this column
int sum_rows(int C) {
int sum = 0;
- for (int r=0; r<rows()-1; ++r) // -1: don't include cell data in 'totals' column
+ for (int r=0; r<rows()-1; ++r) // -1: don't include cell data in 'totals' column
sum += values[r][C];
return(sum);
}
// Return the sum of all cols in this row
int sum_cols(int R) {
int sum = 0;
- for (int c=0; c<cols()-1; ++c) // -1: don't include cell data in 'totals' column
+ for (int c=0; c<cols()-1; ++c) // -1: don't include cell data in 'totals' column
sum += values[R][c];
return(sum);
}
// Return the sum of all cells in table
int sum_all() {
int sum = 0;
- for (int c=0; c<cols()-1; ++c) // -1: don't include cell data in 'totals' column
- for (int r=0; r<rows()-1; ++r) // -1: ""
- sum += values[r][c];
+ for (int c=0; c<cols()-1; ++c) // -1: don't include cell data in 'totals' column
+ for (int r=0; r<rows()-1; ++r) // -1: ""
+ sum += values[r][c];
return(sum);
}
};
// Handle drawing all cells in table
void Spreadsheet::draw_cell(TableContext context, int R,int C, int X,int Y,int W,int H) {
- static char s[30];
+ static char s[30];
switch ( context ) {
- case CONTEXT_STARTPAGE: // table about to redraw
+ case CONTEXT_STARTPAGE: // table about to redraw
break;
- case CONTEXT_COL_HEADER: // table wants us to draw a column heading (C is column)
- fl_font(FL_HELVETICA | FL_BOLD, 14); // set font for heading to bold
- fl_push_clip(X,Y,W,H); // clip region for text
+ case CONTEXT_COL_HEADER: // table wants us to draw a column heading (C is column)
+ fl_font(FL_HELVETICA | FL_BOLD, 14); // set font for heading to bold
+ fl_push_clip(X,Y,W,H); // clip region for text
{
- fl_draw_box(FL_THIN_UP_BOX, X,Y,W,H, col_header_color());
- fl_color(FL_BLACK);
- if (C == cols()-1) { // Last column? show 'TOTAL'
- fl_draw("TOTAL", X,Y,W,H, FL_ALIGN_CENTER);
- } else { // Not last column? show column letter
- sprintf(s, "%c", 'A' + C);
- fl_draw(s, X,Y,W,H, FL_ALIGN_CENTER);
- }
+ fl_draw_box(FL_THIN_UP_BOX, X,Y,W,H, col_header_color());
+ fl_color(FL_BLACK);
+ if (C == cols()-1) { // Last column? show 'TOTAL'
+ fl_draw("TOTAL", X,Y,W,H, FL_ALIGN_CENTER);
+ } else { // Not last column? show column letter
+ sprintf(s, "%c", 'A' + C);
+ fl_draw(s, X,Y,W,H, FL_ALIGN_CENTER);
+ }
}
fl_pop_clip();
return;
- case CONTEXT_ROW_HEADER: // table wants us to draw a row heading (R is row)
- fl_font(FL_HELVETICA | FL_BOLD, 14); // set font for row heading to bold
+ case CONTEXT_ROW_HEADER: // table wants us to draw a row heading (R is row)
+ fl_font(FL_HELVETICA | FL_BOLD, 14); // set font for row heading to bold
fl_push_clip(X,Y,W,H);
{
- fl_draw_box(FL_THIN_UP_BOX, X,Y,W,H, row_header_color());
- fl_color(FL_BLACK);
- if (R == rows()-1) { // Last row? Show 'Total'
- fl_draw("TOTAL", X,Y,W,H, FL_ALIGN_CENTER);
- } else { // Not last row? show row#
- sprintf(s, "%d", R+1);
- fl_draw(s, X,Y,W,H, FL_ALIGN_CENTER);
- }
+ fl_draw_box(FL_THIN_UP_BOX, X,Y,W,H, row_header_color());
+ fl_color(FL_BLACK);
+ if (R == rows()-1) { // Last row? Show 'Total'
+ fl_draw("TOTAL", X,Y,W,H, FL_ALIGN_CENTER);
+ } else { // Not last row? show row#
+ sprintf(s, "%d", R+1);
+ fl_draw(s, X,Y,W,H, FL_ALIGN_CENTER);
+ }
}
fl_pop_clip();
return;
- case CONTEXT_CELL: { // table wants us to draw a cell
+ case CONTEXT_CELL: { // table wants us to draw a cell
if (R == row_edit && C == col_edit && input->visible()) {
- return; // dont draw for cell with input widget over it
+ return; // dont draw for cell with input widget over it
}
// Background
if ( C < cols()-1 && R < rows()-1 ) {
- fl_draw_box(FL_THIN_UP_BOX, X,Y,W,H, is_selected(R,C) ? FL_YELLOW : FL_WHITE);
+ fl_draw_box(FL_THIN_UP_BOX, X,Y,W,H, is_selected(R,C) ? FL_YELLOW : FL_WHITE);
} else {
- fl_draw_box(FL_THIN_UP_BOX, X,Y,W,H, is_selected(R,C) ? 0xddffdd00 : 0xbbddbb00); // money green
+ fl_draw_box(FL_THIN_UP_BOX, X,Y,W,H, is_selected(R,C) ? 0xddffdd00 : 0xbbddbb00); // money green
}
// Text
fl_push_clip(X+3, Y+3, W-6, H-6);
{
- fl_color(FL_BLACK);
- if (C == cols()-1 || R == rows()-1) { // Last row or col? Show total
- fl_font(FL_HELVETICA | FL_BOLD, 14); // ..in bold font
- if (C == cols()-1 && R == rows()-1) { // Last row+col? Total all cells
- sprintf(s, "%d", sum_all());
- } else if (C == cols()-1) { // Row subtotal
- sprintf(s, "%d", sum_cols(R));
- } else if (R == rows()-1) { // Col subtotal
- sprintf(s, "%d", sum_rows(C));
- }
- fl_draw(s, X+3,Y+3,W-6,H-6, FL_ALIGN_RIGHT);
- } else { // Not last row or col? Show cell contents
- fl_font(FL_HELVETICA, 14); // ..in regular font
- sprintf(s, "%d", values[R][C]);
- fl_draw(s, X+3,Y+3,W-6,H-6, FL_ALIGN_RIGHT);
- }
+ fl_color(FL_BLACK);
+ if (C == cols()-1 || R == rows()-1) { // Last row or col? Show total
+ fl_font(FL_HELVETICA | FL_BOLD, 14); // ..in bold font
+ if (C == cols()-1 && R == rows()-1) { // Last row+col? Total all cells
+ sprintf(s, "%d", sum_all());
+ } else if (C == cols()-1) { // Row subtotal
+ sprintf(s, "%d", sum_cols(R));
+ } else if (R == rows()-1) { // Col subtotal
+ sprintf(s, "%d", sum_rows(C));
+ }
+ fl_draw(s, X+3,Y+3,W-6,H-6, FL_ALIGN_RIGHT);
+ } else { // Not last row or col? Show cell contents
+ fl_font(FL_HELVETICA, 14); // ..in regular font
+ sprintf(s, "%d", values[R][C]);
+ fl_draw(s, X+3,Y+3,W-6,H-6, FL_ALIGN_RIGHT);
+ }
}
fl_pop_clip();
return;
}
- case CONTEXT_RC_RESIZE: // table resizing rows or columns
+ case CONTEXT_RC_RESIZE: // table resizing rows or columns
if ( input->visible() ) {
find_cell(CONTEXT_TABLE, row_edit, col_edit, X, Y, W, H);
input->resize(X,Y,W,H);
@@ -205,43 +203,43 @@ void Spreadsheet::draw_cell(TableContext context, int R,int C, int X,int Y,int W
void Spreadsheet::event_callback2() {
int R = callback_row();
int C = callback_col();
- TableContext context = callback_context();
+ TableContext context = callback_context();
switch ( context ) {
- case CONTEXT_CELL: { // A table event occurred on a cell
- switch (Fl::event()) { // see what FLTK event caused it
- case FL_PUSH: // mouse click?
- done_editing(); // finish editing previous
- if (R != rows()-1 && C != cols()-1 ) // only edit cells not in total's columns
- start_editing(R,C); // start new edit
- return;
+ case CONTEXT_CELL: { // A table event occurred on a cell
+ switch (Fl::event()) { // see what FLTK event caused it
+ case FL_PUSH: // mouse click?
+ done_editing(); // finish editing previous
+ if (R != rows()-1 && C != cols()-1 ) // only edit cells not in total's columns
+ start_editing(R,C); // start new edit
+ return;
- case FL_KEYBOARD: // key press in table?
- if ( Fl::event_key() == FL_Escape ) exit(0); // ESC closes app
- done_editing(); // finish any previous editing
- if (C==cols()-1 || R==rows()-1) return; // no editing of totals column
- switch ( Fl::e_text[0] ) {
- case '0': case '1': case '2': case '3': // any of these should start editing new cell
- case '4': case '5': case '6': case '7':
- case '8': case '9': case '+': case '-':
- start_editing(R,C); // start new edit
- input->handle(Fl::event()); // pass typed char to input
- break;
- case '\r': case '\n': // let enter key edit the cell
- start_editing(R,C); // start new edit
- break;
- }
- return;
+ case FL_KEYBOARD: // key press in table?
+ if ( Fl::event_key() == FL_Escape ) exit(0); // ESC closes app
+ done_editing(); // finish any previous editing
+ if (C==cols()-1 || R==rows()-1) return; // no editing of totals column
+ switch ( Fl::e_text[0] ) {
+ case '0': case '1': case '2': case '3': // any of these should start editing new cell
+ case '4': case '5': case '6': case '7':
+ case '8': case '9': case '+': case '-':
+ start_editing(R,C); // start new edit
+ input->handle(Fl::event()); // pass typed char to input
+ break;
+ case '\r': case '\n': // let enter key edit the cell
+ start_editing(R,C); // start new edit
+ break;
+ }
+ return;
}
return;
}
- case CONTEXT_TABLE: // A table event occurred on dead zone in table
- case CONTEXT_ROW_HEADER: // A table event occurred on row/column header
+ case CONTEXT_TABLE: // A table event occurred on dead zone in table
+ case CONTEXT_ROW_HEADER: // A table event occurred on row/column header
case CONTEXT_COL_HEADER:
- done_editing(); // done editing, hide
+ done_editing(); // done editing, hide
return;
-
+
default:
return;
}
@@ -250,20 +248,20 @@ void Spreadsheet::event_callback2() {
int main() {
Fl_Double_Window *win = new Fl_Double_Window(862, 322, "Fl_Table Spreadsheet");
Spreadsheet *table = new Spreadsheet(10, 10, win->w()-20, win->h()-20);
- table->tab_cell_nav(1); // enable tab navigation of table cells (instead of fltk widgets)
+ table->tab_cell_nav(1); // enable tab navigation of table cells (instead of fltk widgets)
table->tooltip("Use keyboard to navigate cells:\n"
"Arrow keys or Tab/Shift-Tab");
// Table rows
table->row_header(1);
table->row_header_width(70);
table->row_resize(1);
- table->rows(MAX_ROWS+1); // +1: leaves room for 'total row'
+ table->rows(MAX_ROWS+1); // +1: leaves room for 'total row'
table->row_height_all(25);
// Table cols
table->col_header(1);
table->col_header_height(25);
table->col_resize(1);
- table->cols(MAX_COLS+1); // +1: leaves room for 'total column'
+ table->cols(MAX_COLS+1); // +1: leaves room for 'total column'
table->col_width_all(70);
// Show window
win->end();
@@ -271,7 +269,3 @@ int main() {
win->show();
return Fl::run();
}
-
-//
-// End of "$Id$".
-//
generated by cgit v1.2.3 (git 2.25.1) at 2026-02-08 08:14:24 +0000