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Uicontrols: Difference between revisions
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Then run <code>imageViewer()</code> from your terminal: | Then run <code>imageViewer()</code> from your terminal: | ||
=== demo_uicontrol === | |||
This example tries to show all available uicontrols (needs Octave >= 4.0 and qt): | |||
[[File:demo_uicontrol1.png]] | |||
{{Code|demo_uicontrol.m|<pre> | |||
## 20.03.2017 Andreas Weber <andy@josoansi.de> | |||
## Demo which has the aim to show all available GUI elements. | |||
## Useful since Octave 4.0 | |||
close all | |||
clear h | |||
graphics_toolkit qt | |||
h.ax = axes ("position", [0.05 0.42 0.5 0.5]); | |||
h.fcn = @(x) polyval([-0.1 0.5 3 0], x); | |||
function update_plot (obj, init = false) | |||
## gcbo holds the handle of the control | |||
h = guidata (obj); | |||
replot = false; | |||
recalc = false; | |||
switch (gcbo) | |||
case {h.print_pushbutton} | |||
fn = uiputfile ("*.png"); | |||
print (fn); | |||
case {h.grid_checkbox} | |||
v = get (gcbo, "value"); | |||
grid (merge (v, "on", "off")); | |||
case {h.minor_grid_toggle} | |||
v = get (gcbo, "value"); | |||
grid ("minor", merge (v, "on", "off")); | |||
case {h.plot_title_edit} | |||
v = get (gcbo, "string"); | |||
set (get (h.ax, "title"), "string", v); | |||
case {h.linecolor_radio_blue} | |||
set (h.linecolor_radio_red, "value", 0); | |||
replot = true; | |||
case {h.linecolor_radio_red} | |||
set (h.linecolor_radio_blue, "value", 0); | |||
replot = true; | |||
case {h.linestyle_popup, h.markerstyle_list} | |||
replot = true; | |||
case {h.noise_slider} | |||
recalc = true; | |||
endswitch | |||
if (recalc || init) | |||
x = linspace (-4, 9); | |||
noise = get (h.noise_slider, "value"); | |||
set (h.noise_label, "string", sprintf ("Noise: %.1f%%", noise * 100)); | |||
y = h.fcn (x) + 5 * noise * randn (size (x)); | |||
if (init) | |||
h.plot = plot (x, y, "b"); | |||
guidata (obj, h); | |||
else | |||
set (h.plot, "ydata", y); | |||
endif | |||
endif | |||
if (replot) | |||
cb_red = get (h.linecolor_radio_red, "value"); | |||
lstyle = get (h.linestyle_popup, "string"){get (h.linestyle_popup, "value")}; | |||
lstyle = strtrim (lstyle(1:2)); | |||
mstyle = get (h.markerstyle_list, "string"){get (h.markerstyle_list, "value")}; | |||
if (strfind (mstyle, "none")) | |||
mstyle = "none"; | |||
else | |||
mstyle = mstyle(2); | |||
endif | |||
set (h.plot, "color", merge (cb_red, [1 0 0 ], [0 0 1]), | |||
"linestyle", lstyle, | |||
"marker", mstyle); | |||
endif | |||
endfunction | |||
## plot title | |||
h.plot_title_label = uicontrol ("style", "text", | |||
"units", "normalized", | |||
"string", "plot title: (text)", | |||
"horizontalalignment", "left", | |||
"position", [0.6 0.85 0.35 0.08]); | |||
h.plot_title_edit = uicontrol ("style", "edit", | |||
"units", "normalized", | |||
"string", "Please fill me! (edit)", | |||
"callback", @update_plot, | |||
"position", [0.6 0.80 0.35 0.06]); | |||
## grid | |||
h.grid_checkbox = uicontrol ("style", "checkbox", | |||
"units", "normalized", | |||
"string", "show grid\n(checkbox)", | |||
"value", 0, | |||
"callback", @update_plot, | |||
"position", [0.6 0.65 0.35 0.09]); | |||
h.minor_grid_toggle = uicontrol ("style", "togglebutton", | |||
"units", "normalized", | |||
"string", "minor\n(togglebutton)", | |||
"callback", @update_plot, | |||
"value", 0, | |||
"position", [0.77 0.65 0.18 0.09]); | |||
## print figure | |||
h.print_pushbutton = uicontrol ("style", "pushbutton", | |||
"units", "normalized", | |||
"string", "print plot\n(pushbutton)", | |||
"callback", @update_plot, | |||
"position", [0.6 0.45 0.35 0.09]); | |||
## noise | |||
h.noise_label = uicontrol ("style", "text", | |||
"units", "normalized", | |||
"string", "Noise:", | |||
"horizontalalignment", "left", | |||
"position", [0.05 0.3 0.35 0.08]); | |||
h.noise_slider = uicontrol ("style", "slider", | |||
"units", "normalized", | |||
"string", "slider", | |||
"callback", @update_plot, | |||
"value", 0.4, | |||
"position", [0.05 0.25 0.35 0.06]); | |||
## linecolor | |||
h.linecolor_label = uicontrol ("style", "text", | |||
"units", "normalized", | |||
"string", "Linecolor:", | |||
"horizontalalignment", "left", | |||
"position", [0.05 0.12 0.35 0.08]); | |||
h.linecolor_radio_blue = uicontrol ("style", "radiobutton", | |||
"units", "normalized", | |||
"string", "blue", | |||
"callback", @update_plot, | |||
"position", [0.05 0.08 0.15 0.04]); | |||
h.linecolor_radio_red = uicontrol ("style", "radiobutton", | |||
"units", "normalized", | |||
"string", "red", | |||
"callback", @update_plot, | |||
"value", 0, | |||
"position", [0.05 0.02 0.15 0.04]); | |||
## linestyle | |||
h.linestyle_label = uicontrol ("style", "text", | |||
"units", "normalized", | |||
"string", "Linestyle:", | |||
"horizontalalignment", "left", | |||
"position", [0.25 0.12 0.35 0.08]); | |||
h.linestyle_popup = uicontrol ("style", "popupmenu", | |||
"units", "normalized", | |||
"string", {"- solid lines", | |||
"-- dashed lines", | |||
": dotted lines", | |||
"-. dash-dotted lines"}, | |||
"callback", @update_plot, | |||
"position", [0.25 0.05 0.3 0.06]); | |||
## markerstyle | |||
h.markerstyle_label = uicontrol ("style", "text", | |||
"units", "normalized", | |||
"string", "Marker style:", | |||
"horizontalalignment", "left", | |||
"position", [0.58 0.3 0.35 0.08]); | |||
h.markerstyle_list = uicontrol ("style", "listbox", | |||
"units", "normalized", | |||
"string", {"none", | |||
"'+' crosshair", | |||
"'o' circle", | |||
"'*' star", | |||
"'.' point", | |||
"'x' cross", | |||
"'s' square", | |||
"'d' diamond", | |||
"'^' upward-facing triangle", | |||
"'v' downward-facing triangle", | |||
"'>' right-facing triangle", | |||
"'<' left-facing triangle", | |||
"'p' pentagram", | |||
"'h' hexagram"}, | |||
"callback", @update_plot, | |||
"position", [0.58 0.04 0.38 0.26]); | |||
set (gcf, "color", get(0, "defaultuicontrolbackgroundcolor")) | |||
guidata (gcf, h) | |||
update_plot (gcf, true); | |||
</pre>}} | |||