bcslider.C

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#include "bcpixmap.h"
#include "bcresources.h"
#include "bcslider.h"
#include "colors.h"
#include "fonts.h"
#include "keys.h"
#include "units.h"
#include "vframe.h"



#include <ctype.h>
#include <string.h>



BC_Slider::BC_Slider(int x, 
                int y, 
                int pixels, 
                int pointer_motion_range,  
                VFrame **images, 
                int show_number, 
                int vertical,
                int use_caption)
 : BC_SubWindow(x, y, 0, 0, -1)
{
        this->images = images;
        this->show_number = show_number;
        this->vertical = vertical;
        this->pointer_motion_range = pointer_motion_range;
        this->pixels = pixels;
        this->button_pixel = button_pixel;
        this->use_caption = use_caption;

        status = SLIDER_UP;
        pixmaps = new BC_Pixmap*[SLIDER_IMAGES];
        for(int i = 0; i < SLIDER_IMAGES; i++)
        {
                pixmaps[i] = 0;
        }
        button_down = 0;
        enabled = 1;
        active = 0;
}

BC_Slider::~BC_Slider()
{
        for(int i = 0; i < SLIDER_IMAGES; i++)
        {
                if(pixmaps[i]) delete pixmaps[i];
        }
        if(pixmaps) delete [] pixmaps;
}

int BC_Slider::initialize()
{
        if(!images)
        {
                this->images = vertical ? 
                        BC_WindowBase::get_resources()->vertical_slider_data : 
                        BC_WindowBase::get_resources()->horizontal_slider_data;
        }

        set_images(images);

        if(vertical)
        {
                w = images[SLIDER_BG_UP]->get_w();
                h = pixels;
        }
        else
        {
                w = pixels;
                h = images[SLIDER_BG_UP]->get_h();
        }

        text_height = get_text_height(SMALLFONT);
        button_pixel = value_to_pixel();

        BC_SubWindow::initialize();
        draw_face();
        return 0;
}

int BC_Slider::get_span(int vertical)
{
        if(vertical)
        {
                return BC_WindowBase::get_resources()->vertical_slider_data[0]->get_w();
        }
        else
        {
                return BC_WindowBase::get_resources()->horizontal_slider_data[0]->get_h();
        }
}

int BC_Slider::draw_face()
{
// Clear background
        draw_top_background(parent_window, 0, 0, get_w(), get_h());


        if(vertical)
        {
                draw_3segmentv(0, 
                        0, 
                        get_h(),
                        pixmaps[SLIDER_IMAGES / 2 + status]);
                draw_pixmap(pixmaps[status], 0, button_pixel);
                if(use_caption) 
                {
                        set_color(RED);
                        set_font(SMALLFONT);
                        draw_text(0, h, get_caption());
                }
        }
        else
        {
                int y = get_h() / 2 - pixmaps[SLIDER_IMAGES / 2 + status]->get_h() / 2;
                draw_3segmenth(0, 
                        0, 
                        get_w(),
                        pixmaps[SLIDER_IMAGES / 2 + status]);
                draw_pixmap(pixmaps[status], button_pixel, 0);
                if(use_caption)
                {
                        set_color(RED);
                        set_font(SMALLFONT);
                        draw_text(0, h, get_caption());
                }
        }

        flash();
        return 0;
}

int BC_Slider::set_images(VFrame **images)
{
        for(int i = 0; i < SLIDER_IMAGES; i++)
        {
                if(pixmaps[i]) delete pixmaps[i];
                pixmaps[i] = new BC_Pixmap(parent_window, images[i], PIXMAP_ALPHA);
        }
        return 0;
}

int BC_Slider::get_button_pixels()
{
        return vertical ? pixmaps[SLIDER_UP]->get_h() : 
                pixmaps[SLIDER_UP]->get_w();
}

void BC_Slider::show_value_tooltip()
{
//printf("BC_Slider::show_value_tooltip %s\n", get_caption());
        set_tooltip(get_caption());
        keypress_tooltip_timer = 2000;
        show_tooltip(50);
}


int BC_Slider::repeat_event(int64_t duration)
{
        if(duration == top_level->get_resources()->tooltip_delay)
        {
                if(tooltip_on)
                {
                        if(keypress_tooltip_timer > 0)
                        {
                                keypress_tooltip_timer -= get_resources()->tooltip_delay;
                        }
                        else
                        if(status != SLIDER_HI && status != SLIDER_DN)
                        {
                                hide_tooltip();
                        }
                }
                else
                if(status == SLIDER_HI)
                {
                        if(!tooltip_text[0] || isdigit(tooltip_text[0]))
                        {
                                set_tooltip(get_caption());
                                show_tooltip(50);
                        }
                        else
                        {
//printf("BC_Slider::repeat_event 1 %s\n", tooltip_text);
                                set_tooltip(get_caption());
                                show_tooltip();
                        }
                        tooltip_done = 1;
                        return 1;
                }
        }
        return 0;
}


int BC_Slider::keypress_event()
{
        int result = 0;
        if(!active || !enabled) return 0;
        if(ctrl_down() || shift_down()) return 0;

        switch(get_keypress())
        {
                case UP:
                        increase_value();
                        result = 1;
                        break;
                case DOWN:
                        decrease_value();
                        result = 1;
                        break;
                case LEFT:
                        decrease_value();
                        result = 1;
                        break;
                case RIGHT:
                        increase_value();
                        result = 1;
                        break;
        }

        if(result)
        {
                show_value_tooltip();
                draw_face();
                handle_event();
        }
        return result;
}

int BC_Slider::cursor_enter_event()
{
//printf("BC_Slider::cursor_enter_event 1\n");
        if(top_level->event_win == win && status == SLIDER_UP)
        {
                tooltip_done = 0;
                status = SLIDER_HI;
                draw_face();
        }
//printf("BC_Slider::cursor_enter_event 2\n");
        return 0;
}

int BC_Slider::cursor_leave_event()
{
        if(status == SLIDER_HI)
        {
                status = SLIDER_UP;
                draw_face();
                hide_tooltip();
        }
        return 0;
}

int BC_Slider::deactivate()
{
        active = 0;
        return 0;
}

int BC_Slider::activate()
{
        top_level->active_subwindow = this;
        active = 1;
}

int BC_Slider::button_press_event()
{
        int result = 0;
        if(is_event_win())
        {
                if(!tooltip_on) top_level->hide_tooltip();
                if(status == SLIDER_HI)
                {
                        if(get_buttonpress() == 4)
                        {
                                increase_value();
                                show_value_tooltip();
                                draw_face();
                                handle_event();
                        }
                        else
                        if(get_buttonpress() == 5)
                        {
                                decrease_value();
                                show_value_tooltip();
                                draw_face();
                                handle_event();
                        }
                        else
                        if(get_buttonpress() == 1)
                        {
                                button_down = 1;
                                status = SLIDER_DN;
                                draw_face();
                                init_selection(top_level->cursor_x, top_level->cursor_y);
                                top_level->deactivate();
                                activate();
                                show_value_tooltip();
                        }
                        result = 1;
                }
        }
        return result;
}

int BC_Slider::button_release_event()
{
        if(button_down) 
        {
                button_down = 0;
                if(cursor_inside()) 
                        status = SLIDER_HI;
                else
                {
                        status = SLIDER_UP;
                        top_level->hide_tooltip();
                }
                draw_face();
                return 1;
        }
        return 0;
}

int BC_Slider::cursor_motion_event()
{
        if(button_down)
        {
                int old_pixel = button_pixel;
                int result = update_selection(top_level->cursor_x, top_level->cursor_y);
                if(button_pixel != old_pixel) draw_face();
                if(result) 
                {
                        set_tooltip(get_caption());
                        handle_event();
                }
                return 1;
        }
        return 0;
}

int BC_Slider::reposition_window(int x, int y, int w, int h)
{
        BC_SubWindow::reposition_window(x, y, w, h);
        button_pixel = value_to_pixel();
        draw_face();
        return 0;
}


int BC_Slider::get_pointer_motion_range()
{
        return pointer_motion_range;
}





BC_ISlider::BC_ISlider(int x, 
                        int y,
                        int vertical,
                        int pixels, 
                        int pointer_motion_range, 
                        int64_t minvalue, 
                        int64_t maxvalue, 
                        int64_t value,
                        int use_caption,
                        VFrame **data,
                        int *output)
 : BC_Slider(x, 
                y, 
                pixels, 
                pointer_motion_range,  
                data,
                1, 
                vertical,
                use_caption)
{
        this->minvalue = minvalue;
        this->maxvalue = maxvalue;
        this->value = value;
        this->output = output;
}

int BC_ISlider::value_to_pixel()
{
        if(maxvalue == minvalue) return 0;
        else
        {
                if(vertical)
                        return (int)((1.0 - (double)(value - minvalue) / (maxvalue - minvalue)) * 
                                (get_h() - get_button_pixels()));
                else
                        return (int)((double)(value - minvalue) / (maxvalue - minvalue) * 
                                (get_w() - get_button_pixels()));
        }
}

int BC_ISlider::update(int64_t value)
{
        if(this->value != value)
        {
                this->value = value;
                int old_pixel = button_pixel;
                button_pixel = value_to_pixel();
                if(button_pixel != old_pixel) draw_face();
        }
        return 0;
}

int BC_ISlider::update(int pointer_motion_range, 
        int64_t value, 
        int64_t minvalue, 
        int64_t maxvalue)
{
        this->minvalue = minvalue;
        this->maxvalue = maxvalue;
        this->value = value;
        this->pointer_motion_range = pointer_motion_range;

        int old_pixel = button_pixel;
        button_pixel = value_to_pixel();
        if(button_pixel != old_pixel) draw_face();
        return 0;
}


int64_t BC_ISlider::get_value()
{
        return value;
}

int64_t BC_ISlider::get_length()
{
        return maxvalue - minvalue;
}

char* BC_ISlider::get_caption()
{
        sprintf(caption, "%ld", value);
        return caption;
}

int BC_ISlider::increase_value()
{
        value++;
        if(value > maxvalue) value = maxvalue;
        button_pixel = value_to_pixel();
        return 0;
}

int BC_ISlider::decrease_value()
{
        value--;
        if(value < minvalue) value = minvalue;
        button_pixel = value_to_pixel();
        return 0;
}

int BC_ISlider::init_selection(int cursor_x, int cursor_y)
{
        if(vertical)
        {
                min_pixel = -(int)((1.0 - (double)(value - minvalue) / (maxvalue - minvalue)) * pointer_motion_range);
                min_pixel += cursor_y;
        }
        else
        {
                min_pixel = -(int)((double)(value - minvalue) / (maxvalue - minvalue) * pointer_motion_range);
                min_pixel += cursor_x;
        }
        max_pixel = min_pixel + pointer_motion_range;
        return 0;
}

int BC_ISlider::update_selection(int cursor_x, int cursor_y)
{
        int64_t old_value = value;

        if(vertical)
        {
                value = (int64_t)((1.0 - (double)(cursor_y - min_pixel) / 
                        pointer_motion_range) * 
                        (maxvalue - minvalue) +
                        minvalue);
        }
        else
        {
                value = (int64_t)((double)(cursor_x - min_pixel) / 
                        pointer_motion_range * 
                        (maxvalue - minvalue) +
                        minvalue);
        }

        if(value > maxvalue) value = maxvalue;
        if(value < minvalue) value = minvalue;
        button_pixel = value_to_pixel();

        if(old_value != value)
        {
                return 1;
        }
        return 0;
}

int BC_ISlider::handle_event()
{
        if(output) *output = get_value();
        return 1;
}








BC_FSlider::BC_FSlider(int x, 
                        int y,
                        int vertical,
                        int pixels, 
                        int pointer_motion_range, 
                        float minvalue, 
                        float maxvalue, 
                        float value,
                        int use_caption,
                        VFrame **data)
 : BC_Slider(x, 
                y, 
                pixels, 
                pointer_motion_range,  
                data,
                1, 
                vertical,
                use_caption)
{
        this->minvalue = minvalue;
        this->maxvalue = maxvalue;
        this->value = value;
        this->precision = 0.1;
}

int BC_FSlider::value_to_pixel()
{
//printf("BC_FSlider::value_to_pixel %f %f\n", maxvalue, minvalue);
        if(maxvalue == minvalue) return 0;
        {
                if(vertical)
                        return (int)((1.0 - (double)(value - minvalue) / (maxvalue - minvalue)) * 
                                (get_h() - get_button_pixels()));
                else
                        return (int)((double)(value - minvalue) / (maxvalue - minvalue) * 
                                (get_w() - get_button_pixels()));
        }
}

int BC_FSlider::update(float value)
{
        if(this->value != value)
        {
                this->value = value;
                int old_pixel = button_pixel;
                button_pixel = value_to_pixel();
//printf("BC_FSlider::update 1 %f %d\n", value, button_pixel);
                if(button_pixel != old_pixel) draw_face();
        }
        return 0;
}

int BC_FSlider::update(int pointer_motion_range, float value, float minvalue, float maxvalue)
{
        this->minvalue = minvalue;
        this->maxvalue = maxvalue;
        this->value = value;
        this->pointer_motion_range = pointer_motion_range;
        int old_pixel = button_pixel;
        button_pixel = value_to_pixel();
        if(button_pixel != old_pixel) draw_face();
        return 0;
}


float BC_FSlider::get_value()
{
        return value;
}

float BC_FSlider::get_length()
{
        return maxvalue - minvalue;
}

char* BC_FSlider::get_caption()
{
        sprintf(caption, "%.02f", value);
        return caption;
}

int BC_FSlider::increase_value()
{
        value += 0.1;
        if(value > maxvalue) value = maxvalue;
        button_pixel = value_to_pixel();
        return 0;
}

int BC_FSlider::decrease_value()
{
        value -= 0.1;
        if(value < minvalue) value = minvalue;
        button_pixel = value_to_pixel();
        return 0;
}

int BC_FSlider::init_selection(int cursor_x, int cursor_y)
{
        if(vertical)
        {
                min_pixel = -(int)((1.0 - (double)(value - minvalue) / (maxvalue - minvalue)) * pointer_motion_range);
                min_pixel += cursor_y;
        }
        else
        {
                min_pixel = -(int)((double)(value - minvalue) / (maxvalue - minvalue) * pointer_motion_range);
                min_pixel += cursor_x;
        }
        max_pixel = min_pixel + pointer_motion_range;
        return 0;
}

int BC_FSlider::update_selection(int cursor_x, int cursor_y)
{
        float old_value = value;


        if(vertical)
        {
                value = ((1.0 - (double)(cursor_y - min_pixel) / 
                        pointer_motion_range) * 
                        (maxvalue - minvalue) +
                        minvalue);
        }
        else
        {
                value = ((double)(cursor_x - min_pixel) / 
                        pointer_motion_range * 
                        (maxvalue - minvalue) +
                        minvalue);
        }

        value = Units::quantize(value, precision);
        if(value > maxvalue) value = maxvalue;
        if(value < minvalue) value = minvalue;
        button_pixel = value_to_pixel();
// printf("BC_FSlider::update_selection 1 %d %d %d %d %f\n", 
// pointer_motion_range, 
// min_pixel,
// max_pixel,
// cursor_x, 
// value);

        if(old_value != value)
        {
                return 1;
        }
        return 0;
}

void BC_FSlider::set_precision(float value)
{
        this->precision = value;
}



BC_PercentageSlider::BC_PercentageSlider(int x, 
                        int y,
                        int vertical,
                        int pixels, 
                        int pointer_motion_range, 
                        float minvalue, 
                        float maxvalue, 
                        float value,
                        int use_caption,
                        VFrame **data)
 : BC_FSlider(x, 
                        y,
                        vertical,
                        pixels, 
                        pointer_motion_range, 
                        minvalue, 
                        maxvalue, 
                        value,
                        use_caption,
                        data)
{
}

char* BC_PercentageSlider::get_caption()
{
        sprintf(caption, "%.0f%%", floor((value - minvalue) / (maxvalue - minvalue) * 100));
        return caption;
}

int BC_PercentageSlider::increase_value()
{
        value += 1;
        if(value > maxvalue) value = maxvalue;
        button_pixel = value_to_pixel();
//printf("BC_PercentageSlider::increase_value %f\n", value);
        return 0;
}

int BC_PercentageSlider::decrease_value()
{
        value -= 1;
        if(value < minvalue) value = minvalue;
        button_pixel = value_to_pixel();
//printf("BC_PercentageSlider::decrease_value %f\n", value);
        return 0;
}

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