shithub: choc

ref: 9f00f2023359b552bfe89accc977590d17bd170e
dir: /setup/txt_mouseinput.c/

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "doomkeys.h"

#include "txt_mouseinput.h"
#include "txt_io.h"
#include "txt_label.h"
#include "txt_window.h"

#define MOUSE_INPUT_WIDTH 10

static int MouseButtonToSetting(int b)
{
    switch (b)
    {
        case TXT_MOUSE_LEFT:
            return 0;
        case TXT_MOUSE_RIGHT:
            return 1;
        case TXT_MOUSE_MIDDLE:
            return 2;
        default:
            return -1;
    }
}

static int MousePressCallback(txt_window_t *window, 
                              int x, int y, int b,
                              TXT_UNCAST_ARG(mouse_input))
{
    TXT_CAST_ARG(txt_mouse_input_t, mouse_input);

    // Got the mouse press.  Save to the variable and close the window.

    *mouse_input->variable = MouseButtonToSetting(b);
    TXT_EmitSignal(mouse_input, "set");
    TXT_CloseWindow(window);

    return 1;
}

static void OpenPromptWindow(txt_mouse_input_t *mouse_input)
{
    txt_window_t *window;
    txt_label_t *label;

    window = TXT_NewWindow(NULL);
    TXT_SetWindowAction(window, TXT_HORIZ_LEFT, NULL);
    TXT_SetWindowAction(window, TXT_HORIZ_CENTER, 
                        TXT_NewWindowAbortAction(window));
    TXT_SetWindowAction(window, TXT_HORIZ_RIGHT, NULL);
    
    label = TXT_NewLabel("Press the new mouse button...");

    TXT_AddWidget(window, label);
    TXT_SetWidgetAlign(label, TXT_HORIZ_CENTER);

    TXT_SetMouseListener(window, MousePressCallback, mouse_input);
}

static void TXT_MouseInputSizeCalc(TXT_UNCAST_ARG(mouse_input))
{
    TXT_CAST_ARG(txt_mouse_input_t, mouse_input);

    // All mouseinputs are the same size.

    mouse_input->widget.w = MOUSE_INPUT_WIDTH;
    mouse_input->widget.h = 1;
}

static void GetMouseButtonDescription(int button, char *buf)
{
    switch (button)
    {
        case 0:
            strcpy(buf, "LEFT");
            break;
        case 1:
            strcpy(buf, "RIGHT");
            break;
        case 2:
            strcpy(buf, "MID");
            break;
        default:
            sprintf(buf, "BUTTON #%i", button);
            break;
    }
}

static void TXT_MouseInputDrawer(TXT_UNCAST_ARG(mouse_input), int selected)
{
    TXT_CAST_ARG(txt_mouse_input_t, mouse_input);
    char buf[20];
    int i;

    if (*mouse_input->variable == -1)
    {
        strcpy(buf, "");
    }
    else
    {
        GetMouseButtonDescription(*mouse_input->variable, buf);
    }

    if (selected)
    {
        TXT_BGColor(TXT_COLOR_GREY, 0);
    }
    else
    {
        TXT_BGColor(TXT_COLOR_BLUE, 0);
    }

    TXT_FGColor(TXT_COLOR_BRIGHT_WHITE);
    
    TXT_DrawString(buf);
    
    for (i=strlen(buf); i<MOUSE_INPUT_WIDTH; ++i)
    {
        TXT_DrawString(" ");
    }
}

static void TXT_MouseInputDestructor(TXT_UNCAST_ARG(mouse_input))
{
    TXT_CAST_ARG(txt_mouse_input_t, mouse_input);
}

static int TXT_MouseInputKeyPress(TXT_UNCAST_ARG(mouse_input), int mouse)
{
    TXT_CAST_ARG(txt_mouse_input_t, mouse_input);

    if (mouse == KEY_ENTER)
    {
        // Open a window to prompt for the new mouse press

        OpenPromptWindow(mouse_input);

        return 1;
    }

    return 0;
}

static void TXT_MouseInputMousePress(TXT_UNCAST_ARG(widget), int x, int y, int b)
{
    TXT_CAST_ARG(txt_mouse_input_t, widget);
            
    // Clicking is like pressing enter

    if (b == TXT_MOUSE_LEFT)
    {
        TXT_MouseInputKeyPress(widget, KEY_ENTER);
    }
}

txt_widget_class_t txt_mouse_input_class =
{
    TXT_MouseInputSizeCalc,
    TXT_MouseInputDrawer,
    TXT_MouseInputKeyPress,
    TXT_MouseInputDestructor,
    TXT_MouseInputMousePress,
};

txt_mouse_input_t *TXT_NewMouseInput(int *variable)
{
    txt_mouse_input_t *mouse_input;

    mouse_input = malloc(sizeof(txt_mouse_input_t));

    TXT_InitWidget(mouse_input, &txt_mouse_input_class);
    mouse_input->variable = variable;

    return mouse_input;
}