diff options
Diffstat (limited to 'examples')
| -rw-r--r-- | examples/Makefile | 1 | ||||
| -rw-r--r-- | examples/table-with-right-column-stretch-fit.cxx | 149 |
2 files changed, 150 insertions, 0 deletions
diff --git a/examples/Makefile b/examples/Makefile index 1b82250f0..a516af365 100644 --- a/examples/Makefile +++ b/examples/Makefile @@ -30,6 +30,7 @@ ALL = browser-simple$(EXEEXT) \ table-spreadsheet$(EXEEXT) \ table-spreadsheet-with-keyboard-nav$(EXEEXT) \ table-with-keynav$(EXEEXT) \ + table-with-right-column-stretch-fit$(EXEEXT) \ tabs-simple$(EXEEXT) \ textdisplay-with-colors$(EXEEXT) \ texteditor-simple$(EXEEXT) \ diff --git a/examples/table-with-right-column-stretch-fit.cxx b/examples/table-with-right-column-stretch-fit.cxx new file mode 100644 index 000000000..302ef0676 --- /dev/null +++ b/examples/table-with-right-column-stretch-fit.cxx @@ -0,0 +1,149 @@ +// +// "$Id$" +// +// +// Demonstrate resizing Fl_Table_Row right column to fit window to avoid appearance of horiz scrollbar +// +// Date Author Description +// -------- ------ ----------- +// 01/03/17 erco Modified version of examples/simple-table.cxx for Duncan's question on fltk.general +// Subject: How to disable horizontal scrollbar in Fl_Table_Row? +// 01/05/17 duncan Added rows() == 0 early exit to FixColumnSize() +// 08/20/19 erco Allow "- Row" button to completely clear table +// +// Copyright 2010, 2019 Greg Ercolano. +// Copyright 1998-2010 by Bill Spitzak and others. +// +// This library is free software. Distribution and use rights are outlined in +// 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 +// +// Please report all bugs and problems on the following page: +// +// http://www.fltk.org/str.php +// + +#include <FL/Fl.H> +#include <FL/Fl_Double_Window.H> +#include <FL/Fl_Button.H> +#include <FL/Fl_Table.H> +#include <FL/fl_draw.H> + +// Derive a class from Fl_Table +class MyTable : public Fl_Table { + + // Draw the row/col headings + // Make this a dark thin upbox with the text inside. + // + void DrawHeader(const char *s, int X, int Y, int W, int H) { + 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); + fl_draw(s, X,Y,W,H, FL_ALIGN_LEFT); + fl_pop_clip(); + } + // Draw the cell data + // Dark gray text on white background with subtle border + // + void DrawData(const char *s, int X, int Y, int W, int H) { + fl_push_clip(X,Y,W,H); + // Draw cell bg + fl_color(FL_WHITE); fl_rectf(X,Y,W,H); + // Draw cell data + fl_color(FL_GRAY0); fl_draw(s, X,Y,W,H, FL_ALIGN_LEFT); + // Draw box border + fl_color(color()); fl_rect(X,Y,W,H); + fl_pop_clip(); + } + // Handle drawing table's cells + // Fl_Table calls this function to draw each visible cell in the table. + // It's up to us to use FLTK's drawing functions to draw the cells the way we want. + // + void draw_cell(TableContext context, int ROW=0, int COL=0, int X=0, int Y=0, int W=0, int H=0) { + static char s[40]; + switch ( context ) { + case CONTEXT_STARTPAGE: // before page is drawn.. + fl_font(FL_HELVETICA, 14); // set the font for our drawing operations + return; + case CONTEXT_COL_HEADER: // Draw column headers + switch(COL) { + case 0: DrawHeader(" #Id",X,Y,W,H); break; + case 1: DrawHeader(" Date / Time",X,Y,W,H); break; + } + return; + case CONTEXT_ROW_HEADER: // Draw row headers + return; + case CONTEXT_CELL: // Draw data in cells + switch(COL) { + case 0: sprintf(s, " #%d", ROW); DrawData(s,X,Y,W,H); break; + case 1: sprintf(s, " 2017-01-02 / 09:20:25.%d", ROW); DrawData(s,X,Y,W,H); break; + } + return; + default: + return; + } + } +public: + // Constructor + // Make our data array, and initialize the table options. + // + MyTable(int X, int Y, int W, int H, const char *L=0) : Fl_Table(X,Y,W,H,L) { + // Rows + rows(10); // how many rows + row_header(0); // disable row headers (along left) + row_height_all(20); // default height of rows + row_resize(0); // disable interactive row resizing + // Cols + cols(2); // how many columns + col_header(1); // enable column headers (along top) + col_width(0, 50); // fixed width for left column + col_width(1, 300); // fixed width for right column (changed later by FixColumnSize()..) + col_resize(0); // disable interactive column resizing + end(); // end the Fl_Table group + FixColumnSize(); // apply our auto-column-sizing behavior + } + ~MyTable() { } + + // Fix the right column's size to precisely match width of window + void FixColumnSize() { + if (rows() == 0) return; // early exit if no rows to work with + int X,Y,W,H; + find_cell(CONTEXT_CELL,0,1,X,Y,W,H); // get xywh of right column cell in first row + int off = (X+W) - (tox+tow); // we just need X pos and width. Compute offset from table's outer size + int oldw = col_width(1); // save old col width + col_width(1, oldw - off); // set new column width based on offset for perfect fit + } + + // Handle window resizing + void resize(int X,int Y,int W,int H) { + Fl_Table::resize(X,Y,W,H); + FixColumnSize(); // after letting window resize, fix our right most column + } +}; + +// Add more rows +void More_CB(Fl_Widget *w, void *d) { + MyTable *table = (MyTable*)d; + table->rows(table->rows()+1); + table->FixColumnSize(); +} + +// Remove rows +void Less_CB(Fl_Widget *w, void *d) { + MyTable *table = (MyTable*)d; + if ( table->rows() > 0 ) table->rows(table->rows()-1); + table->FixColumnSize(); +} + +int main(int argc, char **argv) { + Fl_Double_Window *win = new Fl_Double_Window(500, 400, "Simple Table"); + MyTable *table = new MyTable(10,10,win->w()-20,340); + Fl_Button more(10, 360,100,25,"+ Row"); more.callback(More_CB, (void*)table); + Fl_Button less(220,360,100,25,"- Row"); less.callback(Less_CB, (void*)table); + win->end(); + win->resizable(table); + win->show(argc,argv); + return(Fl::run()); +} |