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buttons' labels are rendered using pango instead of drawings

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Gwenhael Le Moine 2024-11-05 14:33:03 +01:00
parent 567771cbcc
commit 2cb0d3e072
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GPG key ID: FDFE3669426707A7
2 changed files with 38 additions and 109 deletions
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146
src/x49gpng/ui.c
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@ -214,7 +214,7 @@ static x49gp_ui_key_t ui_keys[ NB_KEYS ] = {
.rowbit = ( 1 << 6 ),
.eint = 6,
.bg_color = UI_COLOR_BLACK },
{.label = "V\\kern-1 AR",
{.label = "VAR",
.letter = "J",
.left = "UPDIR",
.right = "COPY",
@ -233,7 +233,7 @@ static x49gp_ui_key_t ui_keys[ NB_KEYS ] = {
.rowbit = ( 1 << 7 ),
.eint = 7,
.bg_color = UI_COLOR_BLACK },
{.label = "STO \\triangleright",
{.label = "STO⏵",
.letter = "K",
.left = "RCL",
.right = "CUT",
@ -272,13 +272,13 @@ static x49gp_ui_key_t ui_keys[ NB_KEYS ] = {
.eint = 2,
.bg_color = UI_COLOR_BLACK },
{.label = "\\arrowup",
{.label = "▲",
.letter = NULL,
.left = NULL,
.right = NULL,
.below = NULL,
.color = UI_COLOR_BLACK,
.font_size = 10.0,
.font_size = 20.0,
.font_weight = CAIRO_FONT_WEIGHT_BOLD,
.letter_size = 0.0,
.x = 4 * KB_COLUMN_WIDTH_6_KEYS,
@ -291,13 +291,13 @@ static x49gp_ui_key_t ui_keys[ NB_KEYS ] = {
.rowbit = ( 1 << 1 ),
.eint = 1,
.bg_color = UI_COLOR_GRAYSCALE_5},
{.label = "\\arrowleft",
{.label = "◀",
.letter = NULL,
.left = NULL,
.right = NULL,
.below = NULL,
.color = UI_COLOR_BLACK,
.font_size = 10.0,
.font_size = 20.0,
.font_weight = CAIRO_FONT_WEIGHT_BOLD,
.letter_size = 0.0,
.x = 3.25 * KB_COLUMN_WIDTH_6_KEYS,
@ -310,13 +310,13 @@ static x49gp_ui_key_t ui_keys[ NB_KEYS ] = {
.rowbit = ( 1 << 2 ),
.eint = 2,
.bg_color = UI_COLOR_GRAYSCALE_5},
{.label = "\\arrowdown",
{.label = "▼",
.letter = NULL,
.left = NULL,
.right = NULL,
.below = NULL,
.color = UI_COLOR_BLACK,
.font_size = 10.0,
.font_size = 20.0,
.font_weight = CAIRO_FONT_WEIGHT_BOLD,
.letter_size = 0.0,
.x = 4 * KB_COLUMN_WIDTH_6_KEYS,
@ -329,13 +329,13 @@ static x49gp_ui_key_t ui_keys[ NB_KEYS ] = {
.rowbit = ( 1 << 3 ),
.eint = 3,
.bg_color = UI_COLOR_GRAYSCALE_5},
{.label = "\\arrowright",
{.label = "▶",
.letter = NULL,
.left = NULL,
.right = NULL,
.below = NULL,
.color = UI_COLOR_BLACK,
.font_size = 10.0,
.font_size = 20.0,
.font_weight = CAIRO_FONT_WEIGHT_BOLD,
.letter_size = 0.0,
.x = 4.78 * KB_COLUMN_WIDTH_6_KEYS,
@ -368,7 +368,7 @@ static x49gp_ui_key_t ui_keys[ NB_KEYS ] = {
.rowbit = ( 1 << 1 ),
.eint = 1,
.bg_color = UI_COLOR_BLACK },
{.label = "EV\\kern-1 AL",
{.label = "EVAL",
.letter = "N",
.left = "PRG",
.right = "CHARS",
@ -387,7 +387,7 @@ static x49gp_ui_key_t ui_keys[ NB_KEYS ] = {
.rowbit = ( 1 << 1 ),
.eint = 1,
.bg_color = UI_COLOR_BLACK },
{.label = "\\tick",
{.label = "‘",
.letter = "O",
.left = "MTRW",
.right = "EQW",
@ -406,7 +406,7 @@ static x49gp_ui_key_t ui_keys[ NB_KEYS ] = {
.rowbit = ( 1 << 1 ),
.eint = 1,
.bg_color = UI_COLOR_BLACK },
{.label = "S\\kern-1 Y\\kern-1 M\\kern-1 B",
{.label = "SYMB",
.letter = "P",
.left = "MTH",
.right = "CAT",
@ -425,7 +425,7 @@ static x49gp_ui_key_t ui_keys[ NB_KEYS ] = {
.rowbit = ( 1 << 1 ),
.eint = 1,
.bg_color = UI_COLOR_BLACK },
{.label = "\\arrowleftdblfull",
{.label = "⬅",
.letter = NULL,
.left = "DEL",
.right = "CLEAR",
@ -445,7 +445,7 @@ static x49gp_ui_key_t ui_keys[ NB_KEYS ] = {
.eint = 1,
.bg_color = UI_COLOR_BLACK },
{.label = "Y\\super x\\/super",
{.label = "Y<sup>x</sup>",
.letter = "Q",
.left = "\\math_e\\xsuperior",
.right = "LN",
@ -464,7 +464,7 @@ static x49gp_ui_key_t ui_keys[ NB_KEYS ] = {
.rowbit = ( 1 << 2 ),
.eint = 2,
.bg_color = UI_COLOR_BLACK },
{.label = "\\radical\\overscore\\kern-7 X",
{.label = "√X",
.letter = "R",
.left = "\\math_x\\twosuperior",
.right = "\\xsuperior\\kern-4\\math_radical\\overscore\\kern-5\\math_y",
@ -560,7 +560,7 @@ static x49gp_ui_key_t ui_keys[ NB_KEYS ] = {
.rowbit = ( 1 << 3 ),
.eint = 3,
.bg_color = UI_COLOR_BLACK },
{.label = "+\\divisionslash\\minus",
{.label = "+/-",
.letter = "W",
.left = "\\math_notequal",
.right = "\\math_equal",
@ -617,7 +617,7 @@ static x49gp_ui_key_t ui_keys[ NB_KEYS ] = {
.rowbit = ( 1 << 3 ),
.eint = 3,
.bg_color = UI_COLOR_BLACK },
{.label = "\\divide",
{.label = "÷",
.letter = "Z",
.left = "ABS",
.right = "ARG",
@ -713,7 +713,7 @@ static x49gp_ui_key_t ui_keys[ NB_KEYS ] = {
.rowbit = ( 1 << 4 ),
.eint = 4,
.bg_color = UI_COLOR_BLACK },
{.label = "\\multiply",
{.label = "×",
.letter = NULL,
.left = "[ ]",
.right = "\" \"",
@ -733,7 +733,7 @@ static x49gp_ui_key_t ui_keys[ NB_KEYS ] = {
.eint = 4,
.bg_color = UI_COLOR_BLACK },
{.label = "\\uparrowleft",
{.label = "⮢",
.letter = NULL,
.left = NULL,
.right = NULL,
@ -809,7 +809,7 @@ static x49gp_ui_key_t ui_keys[ NB_KEYS ] = {
.rowbit = ( 1 << 5 ),
.eint = 5,
.bg_color = UI_COLOR_BLACK },
{.label = "\\minus",
{.label = "-",
.letter = NULL,
.left = "( )",
.right = "_",
@ -829,7 +829,7 @@ static x49gp_ui_key_t ui_keys[ NB_KEYS ] = {
.eint = 5,
.bg_color = UI_COLOR_BLACK },
{.label = "\\uparrowright",
{.label = "⮣",
.letter = NULL,
.left = NULL,
.right = NULL,
@ -963,7 +963,7 @@ static x49gp_ui_key_t ui_keys[ NB_KEYS ] = {
.rowbit = ( 1 << 7 ),
.eint = 7,
.bg_color = UI_COLOR_BLACK },
{.label = "\\bullet",
{.label = ".",
.letter = NULL,
.left = ": :",
.right = "\\math_downarrowleft",
@ -1563,87 +1563,6 @@ static gboolean react_to_key_event( GtkWidget* widget, GdkEventKey* event, gpoin
return true;
}
/* Draw button's pixmap onto window */
static int react_to_button_expose( GtkWidget* widget, GdkEventExpose* event, gpointer user_data )
{
x49gp_ui_button_t* button = user_data;
GtkAllocation widget_allocation;
gtk_widget_get_allocation( widget, &widget_allocation );
int x = widget_allocation.x;
int y = widget_allocation.y;
if ( gtk_widget_get_state( widget ) == GTK_STATE_ACTIVE )
y -= 1;
gdk_draw_drawable( gtk_widget_get_window( widget ), gtk_widget_get_style( widget )->black_gc, button->pixmap, 0, 0, x, y,
widget_allocation.width, widget_allocation.height );
return false;
}
/* Prepare button's pixmap */
static void react_to_button_realize( GtkWidget* widget, gpointer user_data )
{
x49gp_ui_button_t* button = user_data;
x49gp_ui_t* ui = button->x49gp->ui;
const x49gp_ui_key_t* key = button->key;
cairo_t* cr;
double xoff, yoff, width, height, ascent, descent;
unsigned int w, h;
int xoffset, yoffset, x, y;
GtkAllocation widget_allocation;
gtk_widget_get_allocation( widget, &widget_allocation );
xoffset = widget_allocation.x;
yoffset = widget_allocation.y;
w = widget_allocation.width;
h = widget_allocation.height;
button->pixmap = gdk_pixmap_new( gtk_widget_get_window( ui->window ), w, h, -1 );
xoffset += 2;
yoffset += 2;
w -= 4;
h -= 4;
cr = gdk_cairo_create( button->pixmap );
cairo_set_line_cap( cr, CAIRO_LINE_CAP_BUTT );
cairo_set_line_join( cr, CAIRO_LINE_JOIN_MITER );
cairo_set_source_rgb( cr, 1.0, 1.0, 1.0 );
cairo_set_line_width( cr, 1.0 );
cairo_move_to( cr, xoffset, yoffset );
cairo_line_to( cr, xoffset + w - 1, yoffset );
cairo_line_to( cr, xoffset + w - 1, yoffset + h - 1 );
cairo_line_to( cr, xoffset, yoffset + h - 1 );
cairo_close_path( cr );
cairo_stroke( cr );
cairo_set_source_rgb( cr, ui->colors[ key->bg_color ].red / 65535.0, ui->colors[ key->bg_color ].green / 65535.0,
ui->colors[ key->bg_color ].blue / 65535.0 );
cairo_set_line_width( cr, 1.0 );
cairo_move_to( cr, xoffset, yoffset );
cairo_line_to( cr, xoffset + w - 1, yoffset );
cairo_line_to( cr, xoffset + w - 1, yoffset + h - 1 );
cairo_line_to( cr, xoffset, yoffset + h - 1 );
cairo_close_path( cr );
cairo_fill( cr );
regular_font_measure_text( cr, key->font_size, &xoff, &yoff, &width, &height, &ascent, &descent, CAIRO_FONT_SLANT_NORMAL,
key->font_weight, key->label );
x = ( int )floor( ( w - 1.0 - width ) / 2.0 - xoff + 0.5 );
y = ( int )floor( ( h - 1.0 + ascent ) / 2.0 + 0.5 );
regular_font_draw_text( cr, &gtk_widget_get_style( widget )->text[ 0 ], key->font_size, 0.0, x + xoffset, y + yoffset,
CAIRO_FONT_SLANT_NORMAL, key->font_weight, key->label );
cairo_destroy( cr );
}
static int redraw_lcd( GtkWidget* widget, GdkEventExpose* event, gpointer user_data )
{
x49gp_t* x49gp = user_data;
@ -2084,6 +2003,9 @@ static int ui_load( x49gp_module_t* module, GKeyFile* keyfile )
// keyboard
{
x49gp_ui_button_t* button;
PangoAttrList* pango_attributes;
GdkColor* fgcolor;
GdkColor* bgcolor;
if ( ui->calculator == UI_CALCULATOR_HP49GP_NEWRPL || ui->calculator == UI_CALCULATOR_HP50G_NEWRPL )
_ui_load__newrplify_ui_keys();
@ -2102,14 +2024,22 @@ static int ui_load( x49gp_module_t* module, GKeyFile* keyfile )
if ( ui_keys[ i ].label ) {
button->label = gtk_label_new( NULL );
gtk_widget_set_style( button->label, gtk_widget_get_style( button->button ) );
gtk_container_add( GTK_CONTAINER( button->button ), button->label );
/* gtk_label_set_markup( GTK_LABEL( button->label ), ui_keys[ i ].label ); */
pango_attributes = pango_attr_list_new();
pango_attr_list_insert( pango_attributes, pango_attr_size_new( ( ui_keys[ i ].font_size / 1.8 ) * PANGO_SCALE ) );
pango_attr_list_insert( pango_attributes, pango_attr_weight_new( PANGO_WEIGHT_BOLD ) );
fgcolor = &(ui->colors[ ui_keys[ i ].color ]);
pango_attr_list_insert( pango_attributes,
pango_attr_foreground_new( fgcolor->red, fgcolor->green, fgcolor->blue ) );
bgcolor = &(ui->colors[ ui_keys[ i ].bg_color ]);
pango_attr_list_insert( pango_attributes,
pango_attr_background_new( bgcolor->red, bgcolor->green, bgcolor->blue ) );
g_signal_connect( G_OBJECT( button->label ), "expose-event", G_CALLBACK( react_to_button_expose ), button );
gtk_label_set_attributes( GTK_LABEL( button->label ), pango_attributes );
g_signal_connect_after( G_OBJECT( button->label ), "realize", G_CALLBACK( react_to_button_realize ), button );
gtk_label_set_use_markup( GTK_LABEL( button->label ), true );
gtk_label_set_markup( GTK_LABEL( button->label ), ui_keys[ i ].label );
}
button->box = gtk_event_box_new();

1
src/x49gpng/ui.h
View file

@ -74,7 +74,6 @@ typedef struct {
GtkWidget* button;
GtkWidget* label;
GtkWidget* box;
GdkPixmap* pixmap; /* FIXME */
gboolean down;
gboolean hold;
} x49gp_ui_button_t;