Author: greg.ercolano
Date: 2010-12-10 10:28:07 -0800 (Fri, 10 Dec 2010)
New Revision: 8002
Log:
Renamed table-with-keyboard-nav.cxx -> table-spreadsheet-with-keyboard-nav.cxx,
(since it is a spreadsheet as well as demonstrating keyboard nav in tables).
Added:
branches/branch-1.3/examples/table-spreadsheet-with-keyboard-nav.cxx
Removed:
branches/branch-1.3/examples/table-with-keyboard-nav.cxx
Modified:
branches/branch-1.3/examples/Makefile
Modified: branches/branch-1.3/examples/Makefile
===================================================================
--- branches/branch-1.3/examples/Makefile 2010-12-10 18:24:47 UTC (rev
8001)
+++ branches/branch-1.3/examples/Makefile 2010-12-10 18:28:07 UTC (rev
8002)
@@ -8,7 +8,7 @@
table-simple$(EXEEXT) \
table-sort$(EXEEXT) \
table-spreadsheet$(EXEEXT) \
- table-with-keyboard-nav$(EXEEXT) \
+ table-spreadsheet-with-keyboard-nav$(EXEEXT) \
tabs-simple$(EXEEXT) \
textdisplay-with-colors$(EXEEXT) \
texteditor-simple$(EXEEXT) \
Copied: branches/branch-1.3/examples/table-spreadsheet-with-keyboard-nav.cxx
(from rev 8001, branches/branch-1.3/examples/table-with-keyboard-nav.cxx)
===================================================================
--- branches/branch-1.3/examples/table-spreadsheet-with-keyboard-nav.cxx
(rev 0)
+++ branches/branch-1.3/examples/table-spreadsheet-with-keyboard-nav.cxx
2010-12-10 18:28:07 UTC (rev 8002)
@@ -0,0 +1,350 @@
+//
+// "$Id$"
+//
+// Simple example of an interactive spreadsheet using Fl_Table.
+// Uses Mr. Satan's technique of instancing an Fl_Input around.
+// Modified to test Jean-Marc's mods for keyboard nav and mouse selection.
+//
+// Fl_Table[1.00/LGPL] 04/18/03 Mister Satan -- Initial
implementation, submitted to erco for Fl_Table
+// Fl_Table[1.10/LGPL] 05/17/03 Greg Ercolano -- Small mods to follow
changes to Fl_Table
+// Fl_Table[1.20/LGPL] 02/22/04 Jean-Marc Lienher -- Keyboard nav and
mouse selection
+// Fl_Table[1.21/LGPL] 02/22/04 Greg Ercolano -- Small reformatting
mods, comments
+// FLTK[1.3.0/LGPL] 10/26/10 Greg Ercolano -- Moved from Fl_Table
to FLTK 1.3.x, CMP compliance
+//
+// Copyright 1998-2010 by Bill Spitzak and others.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// Library General Public License for more details.
+//
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+// USA.
+//
+// Please report all bugs and problems on the following page:
+//
+// http://www.fltk.org/str.php
+//
+#include <stdio.h>
+#include <stdlib.h>
+#include <FL/Fl.H>
+#include <FL/Fl_Double_Window.H>
+#include <FL/Fl_Table.H>
+#include <FL/Fl_Int_Input.H>
+#include <FL/Fl_Value_Slider.H>
+#include <FL/fl_draw.H>
+
+const int MAX_COLS = 26;
+const int MAX_ROWS = 500;
+
+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
+ int s_left, s_top, s_right, s_bottom; // kb nav +
mouse selection
+
+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)
+ ((Spreadsheet*)v)->event_callback2();
+ }
+ static void input_cb(Fl_Widget*, void* v) { // input widget's
callback
+ ((Spreadsheet*)v)->set_value_hide();
+ }
+
+public:
+ Spreadsheet(int X,int Y,int W,int H,const char* L=0) : Fl_Table(X,Y,W,H,L) {
+ callback(&event_callback, (void*)this);
+ when(FL_WHEN_NOT_CHANGED|when());
+ // 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->hide();
+ input->callback(input_cb, (void*)this);
+ input->when(FL_WHEN_ENTER_KEY_ALWAYS); // callback triggered
when user hits Enter
+ input->maximum_size(5);
+ for (int c = 0; c < MAX_COLS; c++)
+ for (int r = 0; r < MAX_ROWS; r++)
+ values[r][c] = (r + 2) * (c + 3); // initialize cells
+ end();
+ }
+ ~Spreadsheet() { }
+
+ // Apply value from input widget to values[row][col] array and hide (done
editing)
+ 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!
+ }
+ // Change number of rows
+ void rows(int val) {
+ set_value_hide();
+ Fl_Table::rows(val);
+ }
+ // Change number of columns
+ void cols(int val) {
+ set_value_hide();
+ Fl_Table::cols(val);
+ }
+ // Get number of rows
+ inline int rows() {
+ return Fl_Table::rows();
+ }
+ // Get number of columns
+ inline int cols() {
+ return Fl_Table::cols();
+ }
+ // 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
+ col_edit = C;
+ 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
+ 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->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
+ }
+ }
+ // 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
+ 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
+ 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];
+ 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];
+ switch ( context ) {
+ case CONTEXT_STARTPAGE: // table about to redraw
+ // Get kb nav + mouse 'selection region' for use below
+ get_selection(s_top, s_left, s_bottom, s_right);
+ 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
+ {
+ 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
+ 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_pop_clip();
+ return;
+
+ 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
+ }
+ // Background
+ // Keyboard nav and mouse selection highlighting
+ if (R >= s_top && R <= s_bottom && C >= s_left && C <= s_right) {
+ fl_draw_box(FL_THIN_UP_BOX, X,Y,W,H, FL_YELLOW);
+ } else if ( C < cols()-1 && R < rows()-1 ) {
+ fl_draw_box(FL_THIN_UP_BOX, X,Y,W,H, FL_WHITE);
+ } else {
+ fl_draw_box(FL_THIN_UP_BOX, X,Y,W,H, 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_pop_clip();
+ return;
+ }
+
+ case CONTEXT_RC_RESIZE: { // table resizing rows or
columns
+ if (!input->visible()) return;
+ find_cell(CONTEXT_TABLE, row_edit, col_edit, X, Y, W, H);
+ if (X==input->x() && Y==input->y() && W==input->w() && H==input->h()) {
+ return; // no change? ignore
+ }
+ input->resize(X,Y,W,H);
+ return;
+ }
+
+ default:
+ return;
+ }
+}
+
+// Callback whenever someone clicks on different parts of the table
+void Spreadsheet::event_callback2() {
+ int R = callback_row();
+ int C = callback_col();
+ 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 FL_KEYBOARD: // key press in table?
+ if ( Fl::event_key() == FL_Escape ) exit(0); // ESC closes app
+ if (C == cols()-1 || R == rows()-1) return; // no editing of totals
column
+ done_editing(); // finish any previous
editing
+ set_selection(R, C, R, C); // select the current
cell
+ start_editing(R,C); // start new edit
+ if (Fl::event() == FL_KEYBOARD && Fl::e_text[0] != '\r') {
+ input->handle(Fl::event()); // pass keypress to
input widget
+ }
+ 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_COL_HEADER:
+ done_editing(); // done editing, hide
+ return;
+
+ default:
+ return;
+ }
+}
+
+// Change number of columns
+void setcols_cb(Fl_Widget* w, void* v) {
+ Spreadsheet* table = (Spreadsheet*)v;
+ Fl_Valuator* in = (Fl_Valuator*)w;
+ int cols = int(in->value()) + 1;
+ table->cols(cols);
+ table->redraw();
+}
+
+// Change number of rows
+void setrows_cb(Fl_Widget* w, void* v) {
+ Spreadsheet* table = (Spreadsheet*)v;
+ Fl_Valuator* in = (Fl_Valuator*)w;
+ int rows = int(in->value()) + 1;
+ table->rows(rows);
+ table->redraw();
+}
+
+int main() {
+ Fl_Double_Window *win = new Fl_Double_Window(922, 382, "Fl_Table Spreadsheet
with Keyboard Navigation");
+ Spreadsheet* table = new Spreadsheet(20, 20, win->w()-80, win->h()-80);
+ // Table rows
+ table->row_header(1);
+ table->row_header_width(70);
+ table->row_resize(1);
+ table->rows(11);
+ table->row_height_all(25);
+ // Table cols
+ table->col_header(1);
+ table->col_header_height(25);
+ table->col_resize(1);
+ table->cols(11);
+ table->col_width_all(70);
+ table->set_selection(0,0,0,0); // select top/left cell
+
+ // Add children to window
+ win->begin();
+
+ // Row slider
+ Fl_Value_Slider setrows(win->w()-40,20,20,win->h()-80, 0);
+ setrows.type(FL_VERT_NICE_SLIDER);
+ setrows.bounds(2,MAX_ROWS);
+ setrows.step(1);
+ setrows.value(table->rows()-1);
+ setrows.callback(setrows_cb, (void*)table);
+ setrows.when(FL_WHEN_CHANGED);
+ setrows.clear_visible_focus();
+
+ // Column slider
+ Fl_Value_Slider setcols(20,win->h()-40,win->w()-80,20, 0);
+ setcols.type(FL_HOR_NICE_SLIDER);
+ setcols.bounds(2,MAX_COLS);
+ setcols.step(1);
+ setcols.value(table->cols()-1);
+ setcols.callback(setcols_cb, (void*)table);
+ setcols.when(FL_WHEN_CHANGED);
+ setcols.clear_visible_focus();
+
+ win->end();
+ win->resizable(table);
+ win->show();
+
+ return Fl::run();
+}
+
+//
+// End of "$Id$".
+//
Property changes on:
branches/branch-1.3/examples/table-spreadsheet-with-keyboard-nav.cxx
___________________________________________________________________
Name: svn:keywords
+ Id
Name: svn:mergeinfo
+
Name: svn:eol-style
+ native
Deleted: branches/branch-1.3/examples/table-with-keyboard-nav.cxx
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