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/* -*- c-basic-offset:2; tab-width:2; indent-tabs-mode:nil -*- */
#include <stdio.h>
#include <stdlib.h>
#include <ui_sb_view.h>
#include "ui_sample_sb_view_lib.h"
#include "ui_arrow_data.h"
#define TOP_MARGIN 0
#define BOTTOM_MARGIN 28
#define HEIGHT_MARGIN (TOP_MARGIN + BOTTOM_MARGIN)
#define WIDTH 13
/* --- static functions --- */
static void get_geometry_hints(ui_sb_view_t *view, unsigned int *width, unsigned int *top_margin,
unsigned int *bottom_margin, int *up_button_y,
unsigned int *up_button_height, int *down_button_y,
unsigned int *down_button_height) {
*width = WIDTH;
*top_margin = TOP_MARGIN;
*bottom_margin = BOTTOM_MARGIN;
*up_button_y = -BOTTOM_MARGIN;
*up_button_height = BOTTOM_MARGIN / 2;
*down_button_y = -(BOTTOM_MARGIN / 2);
*down_button_height = BOTTOM_MARGIN / 2;
}
static void get_default_color(ui_sb_view_t *view, char **fg_color, char **bg_color) {
*fg_color = "gray";
*bg_color = "lightgray";
}
static void realized(ui_sb_view_t *view, Display *display, int screen, Window window,
GC gc, /* is None in win32 */
unsigned int height) {
sample_sb_view_t *sample;
sample = (sample_sb_view_t*)view;
view->display = display;
view->screen = screen;
view->window = window;
view->gc = gc;
view->height = height;
gc = GetDC(window);
sample->gc = CreateCompatibleDC(gc);
sample->arrow_up =
ui_get_icon_pixmap(view, gc, sample->gc, arrow_up_src, WIDTH, BOTTOM_MARGIN / 2, 24, 0, 0);
sample->arrow_down =
ui_get_icon_pixmap(view, gc, sample->gc, arrow_down_src, WIDTH, BOTTOM_MARGIN / 2, 24, 0, 0);
sample->arrow_up_dent = ui_get_icon_pixmap(view, gc, sample->gc, arrow_up_dent_src, WIDTH,
BOTTOM_MARGIN / 2, 24, 0, 0);
sample->arrow_down_dent = ui_get_icon_pixmap(view, gc, sample->gc, arrow_down_dent_src, WIDTH,
BOTTOM_MARGIN / 2, 24, 0, 0);
ReleaseDC(window, gc);
}
static void resized(ui_sb_view_t *view, Window window, unsigned int height) {
view->window = window;
view->height = height;
}
static void color_changed(ui_sb_view_t *view, int is_fg /* 1=fg , 0=bg */
) {
if (is_fg) {
sample_sb_view_t *sample;
HPEN pen;
sample = (sample_sb_view_t*)view;
pen = SelectObject(view->gc, GetStockObject(NULL_PEN));
SelectObject(sample->gc, pen);
SelectObject(sample->gc, sample->arrow_up);
ui_draw_icon_pixmap_fg(view, sample->gc, arrow_up_src, WIDTH, BOTTOM_MARGIN / 2);
SelectObject(sample->gc, sample->arrow_down);
ui_draw_icon_pixmap_fg(view, sample->gc, arrow_down_src, WIDTH, BOTTOM_MARGIN / 2);
SelectObject(sample->gc, sample->arrow_up_dent);
ui_draw_icon_pixmap_fg(view, sample->gc, arrow_up_dent_src, WIDTH, BOTTOM_MARGIN / 2);
SelectObject(sample->gc, sample->arrow_down_dent);
ui_draw_icon_pixmap_fg(view, sample->gc, arrow_down_dent_src, WIDTH, BOTTOM_MARGIN / 2);
SelectObject(view->gc, pen);
}
}
static void destroy(ui_sb_view_t *view) {
sample_sb_view_t *sample;
sample = (sample_sb_view_t*)view;
if (sample) {
if (sample->gc) {
DeleteDC(sample->gc);
DeleteObject(sample->arrow_up);
DeleteObject(sample->arrow_up_dent);
DeleteObject(sample->arrow_down);
DeleteObject(sample->arrow_down_dent);
}
free(sample);
}
}
static void draw_arrow_up_icon(ui_sb_view_t *view, int is_dent) {
sample_sb_view_t *sample;
Pixmap arrow;
sample = (sample_sb_view_t*)view;
if (is_dent) {
arrow = sample->arrow_up_dent;
} else {
arrow = sample->arrow_up;
}
SelectObject(sample->gc, arrow);
BitBlt(view->gc, 0, view->height - BOTTOM_MARGIN, WIDTH, BOTTOM_MARGIN / 2, sample->gc, 0, 0,
SRCCOPY);
}
static void draw_arrow_down_icon(ui_sb_view_t *view, int is_dent) {
sample_sb_view_t *sample;
Pixmap arrow;
sample = (sample_sb_view_t*)view;
if (is_dent) {
arrow = sample->arrow_down_dent;
} else {
arrow = sample->arrow_down;
}
SelectObject(sample->gc, arrow);
BitBlt(view->gc, 0, view->height - BOTTOM_MARGIN / 2, WIDTH, BOTTOM_MARGIN / 2, sample->gc, 0, 0,
SRCCOPY);
}
static void draw_scrollbar(ui_sb_view_t *view, int bar_top_y, unsigned int bar_height) {
HPEN old_pen;
/* drawing bar */
Rectangle(view->gc, 1, bar_top_y, WIDTH, bar_top_y + bar_height);
/* left side shade */
old_pen = SelectObject(view->gc, GetStockObject(WHITE_PEN));
MoveToEx(view->gc, 0, bar_top_y, NULL);
LineTo(view->gc, 0, bar_top_y + bar_height);
/* up side shade */
MoveToEx(view->gc, 0, bar_top_y, NULL);
LineTo(view->gc, WIDTH - 1, bar_top_y);
/* right side shade */
SelectObject(view->gc, GetStockObject(BLACK_PEN));
MoveToEx(view->gc, WIDTH - 1, bar_top_y, NULL);
LineTo(view->gc, WIDTH - 1, bar_top_y + bar_height - 1);
/* down side shade */
MoveToEx(view->gc, 1, bar_top_y + bar_height - 1, NULL);
LineTo(view->gc, WIDTH, bar_top_y + bar_height - 1);
SelectObject(view->gc, old_pen);
}
static void draw_background(ui_sb_view_t *view, int y, unsigned int height) {
/* XXX Garbage is left in screen in scrolling without +1. Related to NULL_PEN
* ? */
Rectangle(view->gc, 0, y, WIDTH + 1, y + height + 1);
}
static void draw_up_button(ui_sb_view_t *view, int is_pressed) {
draw_arrow_up_icon(view, is_pressed);
}
static void draw_down_button(ui_sb_view_t *view, int is_pressed) {
draw_arrow_down_icon(view, is_pressed);
}
/* --- global functions --- */
ui_sb_view_t *ui_sample_sb_view_new(void) {
sample_sb_view_t *sample;
if ((sample = calloc(1, sizeof(sample_sb_view_t))) == NULL) {
return NULL;
}
sample->view.version = 1;
sample->view.get_geometry_hints = get_geometry_hints;
sample->view.get_default_color = get_default_color;
sample->view.realized = realized;
sample->view.resized = resized;
sample->view.color_changed = color_changed;
sample->view.destroy = destroy;
sample->view.draw_scrollbar = draw_scrollbar;
sample->view.draw_background = draw_background;
sample->view.draw_up_button = draw_up_button;
sample->view.draw_down_button = draw_down_button;
return (ui_sb_view_t*)sample;
}
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