MinGW是否影响编译 - 一个GTK程序 [英] Does MinGW influence compilation -- a GTK program
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问题描述
旧MinGW新MinGW
gcc 3.4.5 4.7。 2
有什么想法？有人遇到这种情况吗？
另一个线索是关于GTK本身的。
g_signal_emit_by_name（G_OBJECT（g_object_get_data（G_OBJECT（window），plat_GA_canvas）），expose -event，G_TYPE_NONE）;
根据不同情况绘制图像的画布。这里它只是发送一个信号来暴露画布。奇怪的是，它在旧的MinGW中起作用。所以我不怀疑这是问题的关键。只是一个线索。顺便说一下，我在家里的纯Linux环境中编译了GTK程序。它也很完美。
任何想法？请帮助。
@duskast，下面是代码的一部分。这是一个有点长。
++++++++++++++++++++++++++++++ ++++++++++++++++++++++
问题可能发生 - g_signal_emit_by_name ：
void ACC_platform_unit_num_changed（GtkWidget * box，GtkWidget * window）
{
int kind;
kind = gtk_option_menu_get_history（（GtkOptionMenu *）box）+ 1;
if（plat.unit_num！= kind）
{
plat_GA_canvas_refresh（window）;
g_signal_emit_by_name（G_OBJECT（g_object_get_data（G_OBJECT（window），plat_GA_canvas）），expose-event，G_TYPE_NONE）;
plat.unit_num = kind;
if（plat.unit_num == 1）
{
gtk_widget_set_sensitive（g_object_get_data（G_OBJECT（window），ACC_platform_if_gap），FALSE）;
gtk_widget_set_sensitive（g_object_get_data（G_OBJECT（window），ACC_platform_if_big_gap），FALSE）;
gtk_widget_set_sensitive（g_object_get_data（G_OBJECT（window），ACC_platform_gap_w），FALSE）;
gtk_widget_set_sensitive（g_object_get_data（G_OBJECT（window），ACC_platform_live_load_gap），FALSE）;
}
else
{
gtk_widget_set_sensitive（g_object_get_data（G_OBJECT（window），ACC_platform_if_gap），TRUE）;
if（plat.has_gap）
{
gtk_widget_set_sensitive（g_object_get_data（G_OBJECT（window），ACC_platform_if_big_gap），TRUE）;
gtk_widget_set_sensitive（g_object_get_data（G_OBJECT（window），ACC_platform_gap_w），TRUE）;
gtk_widget_set_sensitive（g_object_get_data（G_OBJECT（window），ACC_platform_live_load_gap），TRUE）;
}
else
{
gtk_widget_set_sensitive（g_object_get_data（G_OBJECT（window），ACC_platform_if_big_gap），FALSE）;
gtk_widget_set_sensitive（g_object_get_data（G_OBJECT（window），ACC_platform_gap_w），FALSE）;
gtk_widget_set_sensitive（g_object_get_data（G_OBJECT（window），ACC_platform_live_load_gap），FALSE）;
gap_span_show（g_object_get_data（G_OBJECT（window），ACC_platform_gap_span_store））;
核心绘图功能：
void ACC_GA_draw（cairo_t * cr，int width，int height）
{
/ * #define X_MARGIN 30
#define Y_MARGIN 30 * /
#define COLUMN_RADIUS_ASSUME 1.6
#define COLUMN_SQUARE_LEN_ASSUME 2.0
double x，y，x1，y1，x2，y2，scale，x_base，y_base，X_MARGIN，Y_MARGIN;
double x3，y3，downward_height = 0，downward_width = 0;
double x_one_unit，y_one_unit，x_total，y_total，gap_value;
double alpha = 60.0，arrow_side_length = 20.0，arrow_tail_length = 10.0;
ACC_AXIS * x_axis，* y_axis;
int i，j，unit_num，向下;
char * AX，* AY，* Wx_left，* Wx_right，* Wy_top，* Wy_bottom，* gap，* axis;
cairo_text_extents_t te;
AX = g_strdup_printf（％。0f，plat.fan_section_AX * 1000）;
AY = g_strdup_printf（％。0f，plat.fan_section_AY * 1000）;
Wx_left = g_strdup_printf（％。0f，plat.walkway_Wx_left * 1000）;
Wx_right = g_strdup_printf（％。0f，plat.walkway_Wx_right * 1000）;
Wy_bottom = g_strdup_printf（％。0f，plat.walkway_Wy_bottom * 1000）;
Wy_top = g_strdup_printf（％。0f，plat.walkway_Wy_top * 1000）;
x_one_unit = plat.fan_section_AX * plat.SDD_num;
x_total = x_one_unit * plat.unit_num + plat.gap_total + plat.walkway_Wx_left + plat.walkway_Wx_right;
y_one_unit = plat.fan_section_AY * plat.row_num;
y_total = y_one_unit + plat.walkway_Wy_bottom + plat.walkway_Wy_top;
scale = calcu_scale（width，height，x_total，y_total，Wx_left，Wy_top，cr，& X_MARGIN，& Y_MARGIN）;
cairo_set_line_width（cr，NORMAL_LINE_WIDTH * 0.7）; （unit_num = 1; unit_num< = plat.unit_num; unit_num ++）
{
if（unit_num == 1）
x_base = X_MARGIN;
else
{
double total_gap = 0; （i = 0; i
。
x_base = X_MARGIN +（x_one_unit *（unit_num - 1）+ total_gap）* scale;
}
y_base = Y_MARGIN;
for（i = 0，x_axis = plat.X_axis; x_axis; x_axis = x_axis-> next，i ++）
{
if（i == 0）
x = x_base;
else
x + = plat.fan_section_AX * scale;
y = y_base;
cairo_move_to（cr，x，y）;
y + = y_one_unit * scale;
cairo_line_to（cr，x，y）; / *垂直网格* /
cairo_stroke（cr）;
$ b $ * SDD * /
if（i！= plat.SDD_num）
{
cairo_arrow（cr，x + plat.fan_section_AX / 2 * scale，y + plat.walkway_Wy_bottom * scale，alpha，arrow_side_length，1，arrow_tail_length）;
cairo_save（cr）;
cairo_set_line_width（cr，BOLD_LINE_WIDTH）;
cairo_set_line_cap（cr，CAIRO_LINE_CAP_SQUARE）;
cairo_move_to（cr，x_base + plat.fan_section_AX / 2 * scale，y + plat.walkway_Wy_bottom * scale + arrow_side_length + arrow_tail_length）;
cairo_rel_line_to（cr，（x_one_unit - plat.fan_section_AX）* scale，0）;
cairo_stroke（cr）;
cairo_restore（cr）;
}
/ *暗线为A1，A2 ... * /
cairo_move_to（cr，x，y + plat.walkway_Wy_bottom * scale + arrow_side_length + arrow_tail_length + 10） ;
cairo_rel_line_to（cr，0，20）;
cairo_get_current_point（cr，& x3，& y3）;
if（i！= plat.SDD_num）
{
cairo_text_align_horizontal_center（cr，AX，0,1，plat.fan_section_AX / 2 * scale，-10）;
}
else
{
if（plat.unit_num> 1& plat.has_gap& unit_num！= plat.unit_num）
{
gap_value = strtod（g_list_nth（plat.gap_w，unit_num_1） - > data，NULL）;
gap = g_strdup_printf（％。0f，1000 * gap_value）;
cairo_text_extents（cr，gap，& te）;
if（gap_value * scale
downward = 1;
downward_height = 11;
downward_width = gap_value *比例;
cairo_rel_move_to（cr，gap_value / 2 * scale - （te.x_bearing + te.width / 2），10）;
}
else
{
downward = 0;
cairo_rel_move_to（cr，gap_value / 2 * scale - （te.x_bearing + te.width / 2），-10）;
}
cairo_show_text（cr，gap）;
g_free（gap）;
}
else
下行= 0;
}
if（unit_num == 1&& i == 0）
{
cairo_move_to（cr，x - plat.walkway_Wx_left * scale，y + plat.walkway_Wy_bottom * scale + arrow_side_length + arrow_tail_length + 10）;
cairo_rel_line_to（cr，0，20）;
cairo_rel_move_to（cr，-25，-10）;
cairo_show_text（cr，Wx_left）;
if（unit_num == plat.unit_num&& i == plat.SDD_num）
{
cairo_move_to（cr，x + plat.walkway_Wx_right * scale，y + plat.walkway_Wy_bottom * scale + arrow_side_length + arrow_tail_length + 10）;
cairo_rel_line_to（cr，0，20）;
cairo_rel_move_to（cr，3，-10）;
cairo_show_text（cr，Wx_right）; （plat.axis_style_SDD == 0）/ *递增* /
轴= g_strdup_printf（A％d，plat.start_axis_SDD +（unit_num - 1）/
） *（plat.SDD_num + 1）+ i）;
else
axis = g_strdup_printf（A％d，plat.start_axis_SDD +（unit_num - 1）*（plat.SDD_num + 1） - i）;
cairo_text_extents（cr，axis，& te）; （$！
）if（！upward ||（（i！= plat.SDD_num）&&（unit_num！= 1&& i！= 0）））
cairo_move_to（cr，x3 - te .width / 2，y3 + te.height + 2）;
else
{
if（te.width< downward_width）
cairo_move_to（cr，x3 - te.width / 2，y3 + te.height + downward_height）;
else
{
if（i == plat.SDD_num）
cairo_move_to（cr，x3 - te.width，y3 + te.height + downward_height）;
else
cairo_move_to（cr，x3，y3 + te.height + downward_height）;
}
}
cairo_show_text（cr，axis）;
g_free（axis）;
cairo_stroke（cr）;
for（j = 0，y_axis = plat.Y_axis; y_axis; y_axis = y_axis-> next，j ++）
{
x1 = x_base;
if（j == 0）
y1 = y_base + y_one_unit * scale;
else
y1 - = plat.fan_section_AY * scale;
if（i == 0）
{
cairo_move_to（cr，x1，y1）;
x1 + = x_one_unit * scale;
cairo_line_to（cr，x1，y1）; / *水平网格* /
cairo_stroke（cr）;
}
if（i！= plat.SDD_num&& j！= plat.row_num）/ * fan ring * /
{
cairo_arc（cr ，x + plat.fan_section_AX / 2 * scale，y1-plat.fan_section_ay / 2 * scale，plat.fan_ring_opening_D / 2 * scale，0,2 * PI）;
cairo_stroke（cr）;
$ b $ *列* /
if（plat.col_type == 0）/ *砼悬臂住* /
{
if（plat .SDD_num％2 == 0）
{
if（（i + 1）％2 == plat.SDD_col_first&&（j + 1）％2 == plat.row_col_first）
{
cairo_arc（cr，x，y1，COLUMN_RADIUS_ASSUME * scale，0，2 * PI）;
cairo_fill（cr）;
cairo_stroke（cr）;
if（！plat.if_unit_symmetry || unit_num％2 == 1）
{
if（ （i + 1）％2 == plat.SDD_col_first&（j + 1）％2 == plat.row_col_first）
{
cairo_arc（cr，x，y1，COLUMN_RADIUS_ASSUME * scale， 0，2 * PI）;
cairo_fill（cr）;
cairo_stroke（cr）;
else
{
if（（i）％2 == plat.SDD_col_first&&（j + 1）％2 == plat .row_col_first）
{
cairo_arc（cr，x，y1，COLUMN_RADIUS_ASSUME * scale，0，2 * PI）;
cairo_fill（cr）;
cairo_stroke（cr）;
$ b else if（plat.col_type == 1）/ *钢柱* /
{
cairo_save （CR）;
cairo_set_line_width（cr，2 * NORMAL_LINE_WIDTH）;
cairo_move_to（cr，x，y1 - COLUMN_SQUARE_LEN_ASSUME / 2 * scale）;
cairo_rel_line_to（cr，0，COLUMN_SQUARE_LEN_ASSUME * scale）;
cairo_move_to（cr，x - COLUMN_SQUARE_LEN_ASSUME / 2 * scale，y1 - COLUMN_SQUARE_LEN_ASSUME / 2 * scale）;
cairo_rel_line_to（cr，COLUMN_SQUARE_LEN_ASSUME * scale，0）;
cairo_move_to（cr，x - COLUMN_SQUARE_LEN_ASSUME / 2 * scale，y1 + COLUMN_SQUARE_LEN_ASSUME / 2 * scale）;
cairo_rel_line_to（cr，COLUMN_SQUARE_LEN_ASSUME * scale，0）;
cairo_stroke（cr）;
cairo_restore（cr）;
}
else if（plat.col_type == 2）/ *砼框架柱* /
{
cairo_rectangle（cr，x - COLUMN_SQUARE_LEN_ASSUME / 2 * scale，y1 - COLUMN_SQUARE_LEN_ASSUME / 2 *比例，COLUMN_SQUARE_LEN_ASSUME *比例，COLUMN_SQUARE_LEN_ASSUME *比例）;
cairo_fill（cr）;
cairo_stroke（cr）;
}
/ * AA，AB ... * /
的暗线如果（unit_num == plat.unit_num&& i == 0）
{
cairo_move_to（cr，x1 + plat.walkway_Wx_right * scale + 10，y1）;
cairo_rel_line_to（cr，20，0）;
if（j！= plat.row_num）
{
cairo_text_align_horizontal_center（cr，AY，1,1，-10，-plat.fan_section_AY / 2 * scale）;
}
if（j == 0）
{
x2 = x1 + plat.walkway_Wx_right * scale + 10 + 20 - 5;
y2 = y1 + plat.walkway_Wy_bottom * scale;
cairo_move_to（cr，x1 + plat.walkway_Wx_right * scale + 10，y1）;
cairo_rel_move_to（cr，0，plat.walkway_Wy_bottom * scale）;
cairo_rel_line_to（cr，20，0）;
cairo_rel_move_to（cr，-10，25）;
cairo_save（cr）;
cairo_rotate（cr， - PI / 2.0）;
cairo_show_text（cr，Wy_bottom）;
cairo_restore（cr）;
if（j == plat.row_num）
{
cairo_move_to（cr，x1 + plat.walkway_Wx_right * scale + 10，y1）;
cairo_rel_move_to（cr，0，-plat.walkway_Wy_top * scale）;
cairo_rel_line_to（cr，20，0）;
cairo_rel_move_to（cr，-10，-1）;
cairo_save（cr）;
cairo_rotate（cr， - PI / 2.0）;
cairo_show_text（cr，Wy_top）;
cairo_restore（cr）;
}
cairo_stroke（cr）;
if if（unit_num == 1&& i == 0）
{
if（plat.axis_style_row == 0）/ *递增* /
axis = g_strdup_printf（A％c，plat.start_axis_row + j）;
else
axis = g_strdup_printf（A％c，plat.start_axis_row - j）;
cairo_text_extents（cr，axis，& te）;
cairo_move_to（cr，x_base - plat.walkway_Wx_left * scale - 20，y1 + te.height / 2）;
cairo_show_text（cr，axis）;
g_free（axis）;
cairo_stroke（cr）;
}
}
}
}
/ *走道线* /
x = X_MARGIN - plat.walkway_Wx_left *比例尺;
y = Y_MARGIN - plat.walkway_Wy_top * scale;
cairo_move_to（cr，x，y）;
cairo_rel_line_to（cr，x_total * scale，0）;
cairo_rel_line_to（cr，0，y_total * scale）;
cairo_rel_line_to（cr，-x_total * scale，0）;
cairo_rel_line_to（cr，0，-y_total * scale）;
cairo_stroke（cr）;
/ *暗淡A1，A2 ... * /
的总行数cairo_move_to（cr，X_MARGIN - plat.walkway_Wx_left * scale，Y_MARGIN +（y_one_unit + plat.walkway_Wy_bottom）* scale + arrow_side_length + arrow_tail_length + 10 + 20-5）;
cairo_rel_line_to（cr，x_total * scale，0）;
cairo_stroke（cr）;
/ *暗淡AA，AB ... * /
的总行数cairo_move_to（cr，x2，y2）;
cairo_rel_line_to（cr，0，-y_total * scale）;
cairo_stroke（cr）;
g_free（AX）;
g_free（AY）;
g_free（Wx_left）;
g_free（Wx_right）;
g_free（Wy_bottom）;
g_free（Wy_top）;
expose-event signal：
static gboolean ACC_GA_expose（GtkWidget * canvas，GdkEventExpose * event，gpointer user_data）
{
cairo_t * cr;
cr = gdk_cairo_create（canvas-> window）;
if（plat.if_GA_draw）
{
ACC_GA_draw（cr，canvas-> allocation.width，canvas-> allocation.height）;
}
else
{
char * local = char_to_utf8（按下按钮\生成GA \更新!!）;
cairo_select_font_face（cr，Sans，CAIRO_FONT_SLANT_NORMAL，CAIRO_FONT_WEIGHT_BOLD）;
cairo_set_font_size（cr，0.35）;
cairo_move_to（cr，200，200）;
cairo_show_text（cr，local）;
g_free（local）;
}
cairo_destroy（cr）;
返回FALSE;
在main（）函数中：
。
。
。
canvas = gtk_drawing_area_new（）;
g_object_set_data（G_OBJECT（窗口），plat_GA_canvas，canvas）;
plat.if_GA_draw = 0;
gtk_widget_show（canvas）;
gtk_box_pack_start（GTK_BOX（sub_main_box），canvas，TRUE，TRUE，0）;
g_signal_connect（G_OBJECT（canvas），expose-event，G_CALLBACK（ACC_GA_expose），window）;
。
。
。
+++++++++++++++++++++ ++++++++++++++++++++++++++++++
解决方案 GCC 3.4.5和GCC 4.7.2是ABI不兼容的。您需要重建所有代码。
I compiled a GTK program in MinGW environment. It worked perfect. Recently, I updated MinGW and recompiled the GTK program, then the program always stopped with Segmentation fault. I have tried to use gdb to look for errors but I couldn't. The config of GTK is exactly same in the old and new MinGW. Therefore, I am suspicious of MinGW environment that influences compilation. I found the version of gcc is different in two environment:
old MinGW new MinGW
gcc 3.4.5 4.7.2
Any idea? Does anybody meet the situation?
Another clue is about GTK itself. I found the program stopped here:
g_signal_emit_by_name(G_OBJECT(g_object_get_data(G_OBJECT(window), "plat_GA_canvas")), "expose-event", G_TYPE_NONE);
It is a canvas to draw a image according to different situation. Here it just sends a signal to expose the canvas. The curious thing is that it worked in the old MinGW. So I don't doubt it is the point of the problem. Just maybe a clue. By the way, I compiled the GTK program in a pure Linux environment at home. It also worked perfect.
Any idea? Please help.
@duskast, below is the part of the code. It is a little lengthy.
+++++++++++++++++++++++++++++++++++++++++++++++++++
The problem maybe happened -- g_signal_emit_by_name:
void ACC_platform_unit_num_changed (GtkWidget *box, GtkWidget *window)
{
int kind;
kind = gtk_option_menu_get_history((GtkOptionMenu *)box) + 1;
if(plat.unit_num != kind)
{
plat_GA_canvas_refresh (window);
g_signal_emit_by_name(G_OBJECT(g_object_get_data(G_OBJECT(window), "plat_GA_canvas")), "expose-event", G_TYPE_NONE);
plat.unit_num = kind;
if(plat.unit_num == 1)
{
gtk_widget_set_sensitive(g_object_get_data(G_OBJECT(window), "ACC_platform_if_gap"), FALSE);
gtk_widget_set_sensitive(g_object_get_data(G_OBJECT(window), "ACC_platform_if_big_gap"), FALSE);
gtk_widget_set_sensitive(g_object_get_data(G_OBJECT(window), "ACC_platform_gap_w"), FALSE);
gtk_widget_set_sensitive(g_object_get_data(G_OBJECT(window), "ACC_platform_live_load_gap"), FALSE);
}
else
{
gtk_widget_set_sensitive(g_object_get_data(G_OBJECT(window), "ACC_platform_if_gap"), TRUE);
if(plat.has_gap)
{
gtk_widget_set_sensitive(g_object_get_data(G_OBJECT(window), "ACC_platform_if_big_gap"), TRUE);
gtk_widget_set_sensitive(g_object_get_data(G_OBJECT(window), "ACC_platform_gap_w"), TRUE);
gtk_widget_set_sensitive(g_object_get_data(G_OBJECT(window), "ACC_platform_live_load_gap"), TRUE);
}
else
{
gtk_widget_set_sensitive(g_object_get_data(G_OBJECT(window), "ACC_platform_if_big_gap"), FALSE);
gtk_widget_set_sensitive(g_object_get_data(G_OBJECT(window), "ACC_platform_gap_w"), FALSE);
gtk_widget_set_sensitive(g_object_get_data(G_OBJECT(window), "ACC_platform_live_load_gap"), FALSE);
}
}
gap_span_show (g_object_get_data(G_OBJECT(window), "ACC_platform_gap_span_store"));
}
}
The core drawing function:
void ACC_GA_draw (cairo_t *cr, int width, int height)
{
/* #define X_MARGIN 30
#define Y_MARGIN 30 */
#define COLUMN_RADIUS_ASSUME 1.6
#define COLUMN_SQUARE_LEN_ASSUME 2.0
double x, y, x1, y1, x2, y2, scale, x_base, y_base, X_MARGIN, Y_MARGIN;
double x3, y3, downward_height = 0, downward_width = 0;
double x_one_unit, y_one_unit, x_total, y_total, gap_value;
double alpha = 60.0, arrow_side_length = 20.0, arrow_tail_length = 10.0;
ACC_AXIS *x_axis, *y_axis;
int i, j, unit_num, downward;
char *AX, *AY, *Wx_left, *Wx_right, *Wy_top, *Wy_bottom, *gap, *axis;
cairo_text_extents_t te;
AX = g_strdup_printf("%.0f", plat.fan_section_AX * 1000);
AY = g_strdup_printf("%.0f", plat.fan_section_AY * 1000);
Wx_left = g_strdup_printf("%.0f", plat.walkway_Wx_left * 1000);
Wx_right = g_strdup_printf("%.0f", plat.walkway_Wx_right * 1000);
Wy_bottom = g_strdup_printf("%.0f", plat.walkway_Wy_bottom * 1000);
Wy_top = g_strdup_printf("%.0f", plat.walkway_Wy_top * 1000);
x_one_unit = plat.fan_section_AX * plat.SDD_num;
x_total = x_one_unit * plat.unit_num + plat.gap_total + plat.walkway_Wx_left + plat.walkway_Wx_right;
y_one_unit = plat.fan_section_AY * plat.row_num;
y_total = y_one_unit + plat.walkway_Wy_bottom + plat.walkway_Wy_top;
scale = calcu_scale (width, height, x_total, y_total, Wx_left, Wy_top, cr, &X_MARGIN, &Y_MARGIN);
cairo_set_line_width (cr, NORMAL_LINE_WIDTH * 0.7);
for(unit_num = 1; unit_num <= plat.unit_num; unit_num++)
{
if(unit_num == 1)
x_base = X_MARGIN;
else
{
double total_gap = 0;
for(i = 0; i < unit_num - 1; i++)
total_gap += strtod(g_list_nth(plat.gap_w, i)->data, NULL);
x_base = X_MARGIN + (x_one_unit * (unit_num - 1) + total_gap) * scale;
}
y_base = Y_MARGIN;
for(i = 0, x_axis = plat.X_axis; x_axis; x_axis = x_axis->next, i++)
{
if(i == 0)
x = x_base;
else
x += plat.fan_section_AX * scale;
y = y_base;
cairo_move_to(cr, x, y);
y += y_one_unit * scale;
cairo_line_to(cr, x, y); /* vertical grid */
cairo_stroke(cr);
/* SDD */
if(i != plat.SDD_num)
{
cairo_arrow (cr, x + plat.fan_section_AX / 2 * scale, y + plat.walkway_Wy_bottom * scale, alpha, arrow_side_length, 1, arrow_tail_length);
cairo_save(cr);
cairo_set_line_width (cr, BOLD_LINE_WIDTH);
cairo_set_line_cap(cr, CAIRO_LINE_CAP_SQUARE);
cairo_move_to(cr, x_base + plat.fan_section_AX / 2 * scale, y + plat.walkway_Wy_bottom * scale + arrow_side_length + arrow_tail_length);
cairo_rel_line_to(cr, (x_one_unit - plat.fan_section_AX) * scale, 0);
cairo_stroke(cr);
cairo_restore(cr);
}
/* dim line for A1, A2 ... */
cairo_move_to(cr, x, y + plat.walkway_Wy_bottom * scale + arrow_side_length + arrow_tail_length + 10);
cairo_rel_line_to(cr, 0, 20);
cairo_get_current_point(cr, &x3, &y3);
if(i != plat.SDD_num)
{
cairo_text_align_horizontal_center (cr, AX, 0, 1, plat.fan_section_AX / 2 * scale, -10);
}
else
{
if(plat.unit_num > 1 && plat.has_gap && unit_num != plat.unit_num)
{
gap_value = strtod(g_list_nth(plat.gap_w, unit_num - 1)->data, NULL);
gap = g_strdup_printf("%.0f", 1000 * gap_value);
cairo_text_extents(cr, gap, &te);
if(gap_value * scale < te.x_bearing + te.width)
{
downward = 1;
downward_height = 11;
downward_width = gap_value * scale;
cairo_rel_move_to(cr, gap_value / 2 * scale - (te.x_bearing + te.width / 2), 10);
}
else
{
downward = 0;
cairo_rel_move_to(cr, gap_value / 2 * scale - (te.x_bearing + te.width / 2), -10);
}
cairo_show_text(cr, gap);
g_free(gap);
}
else
downward = 0;
}
if(unit_num == 1 && i == 0)
{
cairo_move_to(cr, x - plat.walkway_Wx_left * scale, y + plat.walkway_Wy_bottom * scale + arrow_side_length + arrow_tail_length + 10);
cairo_rel_line_to(cr, 0, 20);
cairo_rel_move_to(cr, -25, -10);
cairo_show_text(cr, Wx_left);
}
if(unit_num == plat.unit_num && i == plat.SDD_num)
{
cairo_move_to(cr, x + plat.walkway_Wx_right * scale, y + plat.walkway_Wy_bottom * scale + arrow_side_length + arrow_tail_length + 10);
cairo_rel_line_to(cr, 0, 20);
cairo_rel_move_to(cr, 3, -10);
cairo_show_text(cr, Wx_right);
}
if(plat.axis_style_SDD == 0) /* 递增 */
axis = g_strdup_printf("A%d", plat.start_axis_SDD + (unit_num - 1) * (plat.SDD_num + 1) + i);
else
axis = g_strdup_printf("A%d", plat.start_axis_SDD + (unit_num - 1) * (plat.SDD_num + 1) - i);
cairo_text_extents(cr, axis, &te);
if(!downward || ((i != plat.SDD_num) && (unit_num != 1 && i != 0)))
cairo_move_to(cr, x3 - te.width / 2, y3 + te.height + 2);
else
{
if(te.width < downward_width)
cairo_move_to(cr, x3 - te.width / 2, y3 + te.height + downward_height);
else
{
if(i == plat.SDD_num)
cairo_move_to(cr, x3 - te.width, y3 + te.height + downward_height);
else
cairo_move_to(cr, x3, y3 + te.height + downward_height);
}
}
cairo_show_text(cr, axis);
g_free(axis);
cairo_stroke(cr);
for(j = 0, y_axis = plat.Y_axis; y_axis; y_axis = y_axis->next, j++)
{
x1 = x_base;
if(j == 0)
y1 = y_base + y_one_unit * scale;
else
y1 -= plat.fan_section_AY * scale;
if(i == 0)
{
cairo_move_to(cr, x1, y1);
x1 += x_one_unit * scale;
cairo_line_to(cr, x1, y1); /* horizontal grid */
cairo_stroke(cr);
}
if(i != plat.SDD_num && j != plat.row_num) /* fan ring */
{
cairo_arc(cr, x + plat.fan_section_AX / 2 * scale, y1 - plat.fan_section_AY / 2 * scale, plat.fan_ring_opening_D / 2 * scale, 0, 2 * PI);
cairo_stroke(cr);
}
/* columns */
if(plat.col_type == 0) /* 砼悬臂住 */
{
if(plat.SDD_num % 2 == 0)
{
if((i + 1) % 2 == plat.SDD_col_first && (j + 1) % 2 == plat.row_col_first)
{
cairo_arc(cr, x, y1, COLUMN_RADIUS_ASSUME * scale, 0, 2 * PI);
cairo_fill(cr);
cairo_stroke(cr);
}
}
else
{
if(!plat.if_unit_symmetry || unit_num % 2 == 1)
{
if((i + 1) % 2 == plat.SDD_col_first && (j + 1) % 2 == plat.row_col_first)
{
cairo_arc(cr, x, y1, COLUMN_RADIUS_ASSUME * scale, 0, 2 * PI);
cairo_fill(cr);
cairo_stroke(cr);
}
}
else
{
if((i) % 2 == plat.SDD_col_first && (j + 1) % 2 == plat.row_col_first)
{
cairo_arc(cr, x, y1, COLUMN_RADIUS_ASSUME * scale, 0, 2 * PI);
cairo_fill(cr);
cairo_stroke(cr);
}
}
}
}
else if(plat.col_type == 1) /* 钢柱 */
{
cairo_save(cr);
cairo_set_line_width (cr, 2 * NORMAL_LINE_WIDTH);
cairo_move_to(cr, x, y1 - COLUMN_SQUARE_LEN_ASSUME / 2 * scale);
cairo_rel_line_to(cr, 0, COLUMN_SQUARE_LEN_ASSUME * scale);
cairo_move_to(cr, x - COLUMN_SQUARE_LEN_ASSUME / 2 * scale, y1 - COLUMN_SQUARE_LEN_ASSUME / 2 * scale);
cairo_rel_line_to(cr, COLUMN_SQUARE_LEN_ASSUME * scale, 0);
cairo_move_to(cr, x - COLUMN_SQUARE_LEN_ASSUME / 2 * scale, y1 + COLUMN_SQUARE_LEN_ASSUME / 2 * scale);
cairo_rel_line_to(cr, COLUMN_SQUARE_LEN_ASSUME * scale, 0);
cairo_stroke(cr);
cairo_restore(cr);
}
else if(plat.col_type == 2) /* 砼框架柱 */
{
cairo_rectangle(cr, x - COLUMN_SQUARE_LEN_ASSUME / 2 * scale, y1 - COLUMN_SQUARE_LEN_ASSUME / 2 * scale, COLUMN_SQUARE_LEN_ASSUME * scale, COLUMN_SQUARE_LEN_ASSUME * scale);
cairo_fill(cr);
cairo_stroke(cr);
}
/* dim line of AA, AB ... */
if(unit_num == plat.unit_num && i == 0)
{
cairo_move_to(cr, x1 + plat.walkway_Wx_right * scale + 10, y1);
cairo_rel_line_to(cr, 20, 0);
if(j != plat.row_num)
{
cairo_text_align_horizontal_center (cr, AY, 1, 1, -10, -plat.fan_section_AY / 2 * scale);
}
if(j == 0)
{
x2 = x1 + plat.walkway_Wx_right * scale + 10 + 20 - 5;
y2 = y1 + plat.walkway_Wy_bottom * scale;
cairo_move_to(cr, x1 + plat.walkway_Wx_right * scale + 10, y1);
cairo_rel_move_to(cr, 0, plat.walkway_Wy_bottom * scale);
cairo_rel_line_to(cr, 20, 0);
cairo_rel_move_to(cr, -10, 25);
cairo_save(cr);
cairo_rotate(cr, - PI / 2.0);
cairo_show_text(cr, Wy_bottom);
cairo_restore(cr);
}
if(j == plat.row_num)
{
cairo_move_to(cr, x1 + plat.walkway_Wx_right * scale + 10, y1);
cairo_rel_move_to(cr, 0, -plat.walkway_Wy_top * scale);
cairo_rel_line_to(cr, 20, 0);
cairo_rel_move_to(cr, -10, -1);
cairo_save(cr);
cairo_rotate(cr, - PI / 2.0);
cairo_show_text(cr, Wy_top);
cairo_restore(cr);
}
cairo_stroke(cr);
}
else if(unit_num == 1 && i == 0)
{
if(plat.axis_style_row == 0) /* 递增 */
axis = g_strdup_printf("A%c", plat.start_axis_row + j);
else
axis = g_strdup_printf("A%c", plat.start_axis_row - j);
cairo_text_extents(cr, axis, &te);
cairo_move_to(cr, x_base - plat.walkway_Wx_left * scale - 20, y1 + te.height / 2);
cairo_show_text(cr, axis);
g_free(axis);
cairo_stroke(cr);
}
}
}
}
/* walkway line */
x = X_MARGIN - plat.walkway_Wx_left * scale;
y = Y_MARGIN - plat.walkway_Wy_top * scale;
cairo_move_to(cr, x, y);
cairo_rel_line_to(cr, x_total * scale, 0);
cairo_rel_line_to(cr, 0, y_total * scale);
cairo_rel_line_to(cr, -x_total * scale, 0);
cairo_rel_line_to(cr, 0, -y_total * scale);
cairo_stroke(cr);
/* dim total line for A1, A2 ... */
cairo_move_to(cr, X_MARGIN - plat.walkway_Wx_left * scale, Y_MARGIN + (y_one_unit + plat.walkway_Wy_bottom) * scale + arrow_side_length + arrow_tail_length + 10 + 20 - 5);
cairo_rel_line_to(cr, x_total * scale, 0);
cairo_stroke(cr);
/* dim total line for AA, AB ... */
cairo_move_to(cr, x2, y2);
cairo_rel_line_to(cr, 0, -y_total * scale);
cairo_stroke(cr);
g_free(AX);
g_free(AY);
g_free(Wx_left);
g_free(Wx_right);
g_free(Wy_bottom);
g_free(Wy_top);
}
The expose-event signal:
static gboolean ACC_GA_expose (GtkWidget *canvas, GdkEventExpose *event, gpointer user_data)
{
cairo_t *cr;
cr = gdk_cairo_create (canvas->window);
if(plat.if_GA_draw)
{
ACC_GA_draw (cr, canvas->allocation.width, canvas->allocation.height);
}
else
{
char *local = char_to_utf8 ("Press button \"生成GA\" to update!!");
cairo_select_font_face(cr, "Sans", CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_BOLD);
cairo_set_font_size(cr, 0.35);
cairo_move_to(cr, 200, 200);
cairo_show_text(cr, local);
g_free(local);
}
cairo_destroy (cr);
return FALSE;
}
In main() function:
.
.
.
canvas = gtk_drawing_area_new();
g_object_set_data(G_OBJECT(window), "plat_GA_canvas", canvas);
plat.if_GA_draw = 0;
gtk_widget_show(canvas);
gtk_box_pack_start(GTK_BOX(sub_main_box), canvas, TRUE, TRUE, 0);
g_signal_connect(G_OBJECT(canvas), "expose-event", G_CALLBACK(ACC_GA_expose), window);
.
.
.
+++++++++++++++++++++++++++++++++++++++++++++++++++
解决方案
GCC 3.4.5 and GCC 4.7.2 are ABI incompatible. You need to rebuild all your code.
这篇关于MinGW是否影响编译 - 一个GTK程序的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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