From f19e827983518a65a65aa7ab663c59a921b02fa4 Mon Sep 17 00:00:00 2001 From: Michael Drake Date: Wed, 2 Oct 2013 13:34:51 +0100 Subject: Use polygon plotter for treeview furniture (node expansion/contraction triangles), instead of triangle text glyphs. --- desktop/treeview.c | 134 ++++++++++++++++++++++++++++++++++++++++++++--------- 1 file changed, 111 insertions(+), 23 deletions(-) (limited to 'desktop/treeview.c') diff --git a/desktop/treeview.c b/desktop/treeview.c index af950aab8..b88566039 100644 --- a/desktop/treeview.c +++ b/desktop/treeview.c @@ -161,10 +161,12 @@ struct treeview_node_style { plot_style_t bg; /**< Background */ plot_font_style_t text; /**< Text */ plot_font_style_t itext; /**< Entry field text */ + plot_style_t furn; /**< Furniture */ plot_style_t sbg; /**< Selected background */ plot_font_style_t stext; /**< Selected text */ plot_font_style_t sitext; /**< Selected entry field text */ + plot_style_t sfurn; /**< Selected furniture */ }; struct treeview_node_style plot_style_odd; /**< Plot style for odd rows */ @@ -197,10 +199,11 @@ enum treeview_furniture_id { TREE_FURN_CONTRACT, TREE_FURN_LAST }; -static struct treeview_text treeview_furn[TREE_FURN_LAST] = { - { "\xe2\x96\xb8", 3, 0 }, /* U+25B8: Right-pointing small triangle */ - { "\xe2\x96\xbe", 3, 0 } /* U+25BE: Down-pointing small triangle */ +struct treeview_furniture { + int pts; /* Number of points (max = 8) */ + int c[8]; /* Coordinate array. x-coord, y-coord... */ }; +static struct treeview_furniture tree_furn[TREE_FURN_LAST]; /* Find the next node in depth first tree order @@ -1666,9 +1669,12 @@ void treeview_redraw(treeview *tree, int x, int y, struct rect *clip, plot_style_t *bg_style; plot_font_style_t *text_style; plot_font_style_t *infotext_style; + plot_style_t *furn_style; int height; int sel_min, sel_max; bool invert_selection; + enum treeview_furniture_id furn_id; + int coords[8]; assert(tree != NULL); assert(tree->root != NULL); @@ -1757,10 +1763,12 @@ void treeview_redraw(treeview *tree, int x, int y, struct rect *clip, bg_style = &style->sbg; text_style = &style->stext; infotext_style = &style->sitext; + furn_style = &style->sfurn; } else { bg_style = &style->bg; text_style = &style->text; infotext_style = &style->itext; + furn_style = &style->furn; } /* Render background */ @@ -1770,17 +1778,18 @@ void treeview_redraw(treeview *tree, int x, int y, struct rect *clip, /* Render toggle */ if (node->flags & TREE_NODE_EXPANDED) { - new_ctx.plot->text(inset, render_y + baseline, - treeview_furn[TREE_FURN_CONTRACT].data, - treeview_furn[TREE_FURN_CONTRACT].len, - text_style); + furn_id = TREE_FURN_CONTRACT; } else { - new_ctx.plot->text(inset, render_y + baseline, - treeview_furn[TREE_FURN_EXPAND].data, - treeview_furn[TREE_FURN_EXPAND].len, - text_style); + furn_id = TREE_FURN_EXPAND; } + for (i = 0; i < tree_furn[furn_id].pts; i += 2) { + coords[i ] = tree_furn[furn_id].c[i ] + inset; + coords[i + 1] = tree_furn[furn_id].c[i + 1] + render_y; + } + new_ctx.plot->polygon(coords, tree_furn[furn_id].pts / 2, + furn_style); + /* Render icon */ if (node->type == TREE_NODE_ENTRY) res = TREE_RES_CONTENT; @@ -3472,6 +3481,10 @@ static void treeview_init_plot_styles(int font_pt_size) plot_style_even.text.foreground, plot_style_even.text.background, 255 * 10 / 16); + /* Furniture colour */ + plot_style_even.furn = plot_style_even.bg; + plot_style_even.furn.fill_colour = plot_style_even.itext.foreground; + /* Selected background colour */ plot_style_even.sbg = plot_style_even.bg; plot_style_even.sbg.fill_colour = gui_system_colour_char("Highlight"); @@ -3488,6 +3501,10 @@ static void treeview_init_plot_styles(int font_pt_size) plot_style_even.stext.foreground, plot_style_even.stext.background, 255 * 25 / 32); + /* Selected furniture colour */ + plot_style_even.sfurn = plot_style_even.bg; + plot_style_even.sfurn.fill_colour = plot_style_even.sitext.foreground; + /* Odd numbered node styles */ plot_style_odd.bg = plot_style_even.bg; @@ -3500,10 +3517,13 @@ static void treeview_init_plot_styles(int font_pt_size) plot_style_odd.itext.foreground = mix_colour( plot_style_odd.text.foreground, plot_style_odd.text.background, 255 * 10 / 16); + plot_style_odd.furn = plot_style_odd.bg; + plot_style_odd.furn.fill_colour = plot_style_odd.itext.foreground; plot_style_odd.sbg = plot_style_even.sbg; plot_style_odd.stext = plot_style_even.stext; plot_style_odd.sitext = plot_style_even.sitext; + plot_style_odd.sfurn = plot_style_even.sfurn; } @@ -3555,20 +3575,87 @@ static void treeview_init_resources(void) */ static void treeview_init_furniture(void) { - int i; - tree_g.furniture_width = 0; + struct treeview_furniture *f; + int size = tree_g.line_height / 2; + int smax = size - 1; + int i, y; + + /* Make TREE_FURN_EXPAND */ + f = &(tree_furn[TREE_FURN_EXPAND]); + + if (size & 0x1) { + /* Size is odd; triangle */ + f->pts = 6; + + f->c[0] = 0; + f->c[1] = 0; + + f->c[2] = smax; + f->c[3] = size / 2; + + f->c[4] = 0; + f->c[5] = smax; + + } else { + /* Size is even; trapezium */ + f->pts = 8; + + f->c[0] = 0; + f->c[1] = 0; + + f->c[2] = smax; + f->c[3] = size / 2 - 1; + + f->c[4] = smax; + f->c[5] = size / 2; + + f->c[6] = 0; + f->c[7] = smax; + } + + /* Make TREE_FURN_CONTRACT */ + f = &(tree_furn[TREE_FURN_CONTRACT]); + + if (size & 0x1) { + /* Size is odd; triangle */ + f->pts = 6; + f->c[0] = 0; + f->c[1] = 0; + + f->c[2] = smax; + f->c[3] = 0; + + f->c[4] = size / 2; + f->c[5] = smax; + + } else { + /* Size is even; trapezium */ + f->pts = 8; + + f->c[0] = 0; + f->c[1] = 0; + + f->c[2] = smax; + f->c[3] = 0; + + f->c[4] = size / 2; + f->c[5] = smax; + + f->c[6] = size / 2 - 1; + f->c[7] = smax; + } + + /* Vertically offset for line height */ for (i = 0; i < TREE_FURN_LAST; i++) { - nsfont.font_width(&plot_style_odd.text, - treeview_furn[i].data, - treeview_furn[i].len, - &(treeview_furn[i].width)); + f = &(tree_furn[i]); - if (treeview_furn[i].width > tree_g.furniture_width) - tree_g.furniture_width = treeview_furn[i].width; + for (y = 1; y < f->pts; y += 2) { + f->c[y] += tree_g.line_height / 4; + } } - tree_g.furniture_width += 5; + tree_g.furniture_width = size + tree_g.line_height / 4; } @@ -3583,19 +3670,20 @@ nserror treeview_init(int font_pt_size) if (font_pt_size <= 0) font_pt_size = 11; + font_px_size = (font_pt_size * FIXTOINT(nscss_screen_dpi) + 36) / 72; + tree_g.line_height = (font_px_size * 8 + 3) / 6; + treeview_init_plot_styles(font_pt_size); treeview_init_resources(); treeview_init_furniture(); - font_px_size = (font_pt_size * FIXTOINT(nscss_screen_dpi) + 36) / 72; - - tree_g.line_height = (font_px_size * 8 + 3) / 6; tree_g.step_width = tree_g.furniture_width; tree_g.window_padding = 6; tree_g.icon_size = 17; tree_g.icon_step = 23; tree_g.move_offset = 18; + tree_g.initialised = true; return NSERROR_OK; -- cgit v1.2.3