Bode
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In this project we approach the construction of an interactive user interface for Bode Plots, a tool widely used in Control Engineering (Figure 1). The calculus module has been written in C language by Javier Gil Chica, Phd of Physics Department of the University of Alicante. The complete source code is available in folder /src/demo/bode of the SDK distribution.
The main window has been divided vertically into two parts, using a layout(2,1) (Figure 4). On the left side we have the parameters P, Q, T, R and some buttons. Sublayouts have been used i_coeffs(4,9) and i_ranges(3,3) to group controls. In the right area are two View drawing controls for graphics and other sublayout i_sliders(3,3) with the parameters I, P, D.
The horizontal resizing is done entirely on the right cell (graphs and sliders), keeping the parameter area a constant horizontal size. During the vertical resizing the graphs will grow with a proportion of 50% each. For the left part, an empty cell has been reserved, which will expand horizontally, aligning the button [More Info] to the bottom edge of the window.
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/* Bode View */ #include "bdview.h" #include "bdctrl.h" #include <gui/guiall.h> static const real32_t kEDIT_WIDTH = 60; /*---------------------------------------------------------------------------*/ static Cell *i_coeff(Layout *layout, const char_t *text, const uint32_t col, const uint32_t row) { Label *label = label_create(); Edit *edit = edit_create(); label_text(label, text); edit_align(edit, ekRIGHT); layout_halign(layout, col * 2, row, ekCENTER); layout_label(layout, label, col * 2, row); layout_edit(layout, edit, col * 2 + 1, row); return layout_cell(layout, col * 2 + 1, row); } /*---------------------------------------------------------------------------*/ static Layout *i_coeffs(void) { Layout *layout = layout_create(4, 9); cell_dbind(i_coeff(layout, "P[0]", 0, 0), Params, real32_t, P[0]); cell_dbind(i_coeff(layout, "P[1]", 1, 0), Params, real32_t, P[1]); cell_dbind(i_coeff(layout, "P[2]", 0, 1), Params, real32_t, P[2]); cell_dbind(i_coeff(layout, "P[3]", 1, 1), Params, real32_t, P[3]); cell_dbind(i_coeff(layout, "P[4]", 0, 2), Params, real32_t, P[4]); cell_dbind(i_coeff(layout, "Q[0]", 0, 3), Params, real32_t, Q[0]); cell_dbind(i_coeff(layout, "Q[1]", 1, 3), Params, real32_t, Q[1]); cell_dbind(i_coeff(layout, "Q[2]", 0, 4), Params, real32_t, Q[2]); cell_dbind(i_coeff(layout, "Q[3]", 1, 4), Params, real32_t, Q[3]); cell_dbind(i_coeff(layout, "Q[4]", 0, 5), Params, real32_t, Q[4]); cell_dbind(i_coeff(layout, "Q[5]", 1, 5), Params, real32_t, Q[5]); cell_dbind(i_coeff(layout, "Q[6]", 0, 6), Params, real32_t, Q[6]); cell_dbind(i_coeff(layout, "Q[7]", 1, 6), Params, real32_t, Q[7]); cell_dbind(i_coeff(layout, "Q[8]", 0, 7), Params, real32_t, Q[8]); cell_dbind(i_coeff(layout, "T", 0, 8), Params, real32_t, T); cell_dbind(i_coeff(layout, "R", 1, 8), Params, real32_t, R); layout_hsize(layout, 1, kEDIT_WIDTH); layout_hsize(layout, 3, kEDIT_WIDTH); layout_vmargin(layout, 0, 5); layout_vmargin(layout, 1, 5); layout_vmargin(layout, 2, 10); layout_vmargin(layout, 3, 5); layout_vmargin(layout, 4, 5); layout_vmargin(layout, 5, 5); layout_vmargin(layout, 6, 5); layout_vmargin(layout, 7, 10); layout_hmargin(layout, 1, 5); layout_hmargin(layout, 0, 3); layout_hmargin(layout, 2, 3); return layout; } /*---------------------------------------------------------------------------*/ static void i_range(Layout *layout, const char_t *text, const uint32_t i) { Label *label = label_create(); Edit *edit1 = edit_create(); Edit *edit2 = edit_create(); label_text(label, text); edit_align(edit1, ekRIGHT); edit_align(edit2, ekRIGHT); layout_label(layout, label, 0, i); layout_edit(layout, edit1, 1, i); layout_edit(layout, edit2, 2, i); } /*---------------------------------------------------------------------------*/ static Layout *i_ranges(void) { Layout *layout = layout_create(3, 3); i_range(layout, "I", 0); i_range(layout, "P", 1); i_range(layout, "D", 2); layout_hsize(layout, 1, kEDIT_WIDTH); layout_hsize(layout, 2, kEDIT_WIDTH); layout_vmargin(layout, 0, 5); layout_vmargin(layout, 1, 5); layout_hmargin(layout, 0, 5); layout_hmargin(layout, 1, 5); cell_dbind(layout_cell(layout, 1, 0), Params, real32_t, KRg[0]); cell_dbind(layout_cell(layout, 2, 0), Params, real32_t, KRg[1]); cell_dbind(layout_cell(layout, 1, 1), Params, real32_t, KRg[2]); cell_dbind(layout_cell(layout, 2, 1), Params, real32_t, KRg[3]); cell_dbind(layout_cell(layout, 1, 2), Params, real32_t, KRg[4]); cell_dbind(layout_cell(layout, 2, 2), Params, real32_t, KRg[5]); return layout; } /*---------------------------------------------------------------------------*/ static Layout *i_left(Ctrl *ctrl) { Layout *layout = layout_create(1, 10); Layout *layout1 = i_coeffs(); Button *button = button_push(); Label *label = label_create(); Button *button2 = button_push(); Button *button3 = button_push(); Button *button4 = button_push(); Label *label2 = label_create(); Layout *layout2 = i_ranges(); Button *button5 = button_push(); button_text(button, "Reset defaults"); button_text(button2, "Take"); button_text(button3, "Restore"); button_text(button4, "Clear"); button_text(button5, "More info"); label_text(label, "SnapShot"); label_text(label2, "Slider Range"); layout_layout(layout, layout1, 0, 0); layout_button(layout, button, 0, 1); layout_label(layout, label, 0, 2); layout_button(layout, button2, 0, 3); layout_button(layout, button3, 0, 4); layout_button(layout, button4, 0, 5); layout_label(layout, label2, 0, 6); layout_layout(layout, layout2, 0, 7); layout_button(layout, button5, 0, 9); layout_halign(layout, 0, 7, ekLEFT); layout_vmargin(layout, 0, 10); layout_vmargin(layout, 1, 10); layout_vmargin(layout, 2, 5); layout_vmargin(layout, 3, 5); layout_vmargin(layout, 4, 5); layout_vmargin(layout, 5, 10); layout_vmargin(layout, 6, 5); layout_vmargin(layout, 7, 10); layout_vexpand(layout, 8); ctrl_reset(ctrl, button); ctrl_take(ctrl, layout_cell(layout, 0, 3)); ctrl_restore(ctrl, layout_cell(layout, 0, 4)); ctrl_clear(ctrl, layout_cell(layout, 0, 5)); ctrl_info(ctrl, button5); return layout; } /*---------------------------------------------------------------------------*/ static void i_slider_K(Layout *layout, const char_t *title, const uint32_t row) { Label *label = label_create(); Slider* slider = slider_create(); Edit* edit = edit_create(); label_text(label, title); edit_align(edit, ekRIGHT); layout_label(layout, label, 0, row); layout_slider(layout, slider, 1, row); layout_edit(layout, edit, 2, row); } /*---------------------------------------------------------------------------*/ static Layout *i_sliders(Ctrl *ctrl) { Layout *layout = layout_create(3, 3); i_slider_K(layout, "I", 0); i_slider_K(layout, "P", 1); i_slider_K(layout, "D", 2); layout_hsize(layout, 2, kEDIT_WIDTH); layout_vmargin(layout, 0, 5); layout_vmargin(layout, 1, 5); layout_hmargin(layout, 0, 5); layout_hmargin(layout, 1, 5); layout_hexpand(layout, 1); cell_dbind(layout_cell(layout, 1, 0), Params, real32_t, K[0]); cell_dbind(layout_cell(layout, 2, 0), Params, real32_t, K[0]); cell_dbind(layout_cell(layout, 1, 1), Params, real32_t, K[1]); cell_dbind(layout_cell(layout, 2, 1), Params, real32_t, K[1]); cell_dbind(layout_cell(layout, 1, 2), Params, real32_t, K[2]); cell_dbind(layout_cell(layout, 2, 2), Params, real32_t, K[2]); ctrl_slider1(ctrl, layout_cell(layout, 1, 0)); return layout; } /*---------------------------------------------------------------------------*/ static Layout* i_right(Ctrl *ctrl) { Layout *layout = layout_create(1, 3); Layout* layout1 = i_sliders(ctrl); View* view1 = view_create(); View* view2 = view_create(); layout_view(layout, view1, 0, 0); layout_view(layout, view2, 0, 1); layout_layout(layout, layout1, 0, 2); layout_vmargin(layout, 0, 2); layout_vmargin(layout, 1, 5); layout_vexpand2(layout, 0, 1, .5f); ctrl_view1(ctrl, view1); ctrl_view2(ctrl, view2); return layout; } /*---------------------------------------------------------------------------*/ static Panel *i_panel(Ctrl *ctrl) { Panel *panel = panel_create(); Layout *layout = layout_create(2, 1); Layout *layout1 = i_left(ctrl); Layout* layout2 = i_right(ctrl); layout_layout(layout, layout1, 0, 0); layout_layout(layout, layout2, 1, 0); layout_hmargin(layout, 0, 5); layout_hexpand(layout, 1); layout_margin(layout, 10); panel_layout(panel, layout); layout_dbind(layout1, NULL, Params); layout_dbind(layout2, NULL, Params); cell_dbind(layout_cell(layout, 0, 0), Model, Params, cparams); cell_dbind(layout_cell(layout, 1, 0), Model, Params, cparams); layout_dbind(layout, listener(ctrl, ctrl_OnModelChange, Ctrl), Model); ctrl_layout(ctrl, layout); return panel; } /*---------------------------------------------------------------------------*/ Window* bdview_create(Ctrl *ctrl) { Panel *panel = i_panel(ctrl); Window *window = window_create(ekWINDOW_STDRES); window_panel(window, panel); window_title(window, "Bode plot"); return window; } |